U.S. ENVIRONMENTAL PROTECTION AGENCY
           NATIONAL EUTROPHICATION SURVEY
                     WORKING PAPER SERIES
                               A COMPENDIUM OF LAKE AND RESERVOIR
                                 DATA COLLECTED BY THE NATIONAL
                                  EUTROPHICATION SURVEY IN THE
                                     WESTERN UNITED STATES
                                     WORKING PAPER NO. 477
 CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
                              and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA

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         A COMPENDIUM OF LAKE AND RESERVOIR
           DATA COLLECTED BY THE NATIONAL
            EUTROPHICATION SURVEY IN THE
                WESTERN UNITED STATES
                WORKING PAPER NO.  477
September, 1978

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                             INTRODUCTION

     The National Eutrophication Survey (NES) was Initiated in 1972 by
the U.S. Environmental Protection Agency (EPA) to investigate the nation-
wide threat of accelerated eutrophication to freshwater lakes and reser-
voirs.   In conjunction with State environmental agencies, the Survey
developed information on nutrient sources, inputs, and impacts on select-
ed freshwater lakes and reservoirs throughout the contiguous United
States.  In total, over 800 lakes and reservoirs, 4,200 tributaries and
lake outlets, and 1,000 sewage treatment plants were included in the
sampling programs which involved a joint field effort by EPA personnel,
the National Guard of each State, operators of municipal and industrial
waste treatment plants, and personnel of the respective State agency
responsible for water pollution control activities.   For details of the
procedures and methods used in the geographical area encompassed in this
report, refer to NES Working Paper No.  175, "National Eutrophication
Survey Methods, 1973-1976".
     One of the primary outputs of the NES program is the individual
lake or reservoir report in which are summarized the trophic condition;
the nutrient sources, loads, and controllability; and the limiting
nutrient.   Each report also includes all of the NES data pertaining to
the water body, the drainage area, and the nutrient point sources.   To
make the NES data accessible to many users, data in each lake report
have been summarized and compiled in this report which includes informa-
tion on the water bodies sampled during the fourth year of the Survey

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(1975).   Geographically, this compendium includes data on lakes and
reservoirs in Arizona, California, Colorado,  Idaho,  Montana,  Nevada, New
Mexico,  Oregon, Utah, Washington, and Wyoming.
     Compendia of data on water bodies in other areas of the  U.S.  have
been prepared.  Working Paper No. 474 includes  data  on water  bodies
sampled in 1972 (northeast and part of north-central U.S.); Working
Paper No.  475 provides data on water bodies sampled  in 1973  (eastern,
north-central, and southeastern States); and Working Paper No.  476 in-
cludes the data obtained in 1974 (central and plains States).

                         COMPENDIUM COMPONENTS
     In the compendium heading for each water body,  the identifiers are
given (NAME, STATE, principal COUNTY, STORET NO., WORKING PAPER NO., and
NTIS ACCESSION NO.).   Following the NAME, the trophic condition of the
water body is shown in parentheses.
     The trophic condition is based on an assessment of the data collected
during the sampling year supplemented by results of  past studies,  if
any, and communications with State personnel.   Each  water body was
categorized as "OLIGOTROPHIC" (low nutrient levels and productivity),
"MESOTROPHIC" (moderate nutrient levels and productivity), "EUTROPHIC
(high nutrient levels and productivity), or "HYPEREUTROPHIC"  (very high
nutrient levels and productivity).  For large water  bodies, two or more
trophic categories maybe indicated;  e.g., the major  tributary embayments
(nearest the nutrient sources) may be eutrophic while the main portion
of the water body is mesotrophic.

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     Following the heading, the data are arranged in five categories:

       I.   MORPHOMETRY
      II.   PHYSICAL AND CHEMICAL CHARACTERISTICS
     III.   BIOLOGICAL CHARACTERISTICS
      IV.   NUTRIENT LOADING CHARACTERISTICS
       V.   NON-POINT SOURCE NUTRIENT EXPORT

     Each of these categories contains related information as discussed

below.   If data were not obtained, a series of asterisks is shown.
I.    MORPHOMETRY

     The morphometric data were compiled from the literature and/or from

information provided by State and Federal  personnel.

     LAKE TYPE - either of NATURAL origin  or resulting from stream
          IMPOUNDMENT.

     DRAINAGE AREA (SQ KM) - the total  drainage area (measured to the
          outlet) in square kilometers.

     SURFACE AREA (SQ KM) - the area of the water surface in square
          kilometers.

     MEAN DEPTH (METERS) - the volume of the water body, in cubic meters,
          divided by the surface area in square meters.

     TOTAL INFLOW (CMS) - the mean of the  inflows of all tributaries and
          the immediate drainage in cubic  meters per second.

     RETENTION TIME (YEARS or DAYS) - a mean value determined by divid-
          ing the lake volume, in cubic meters, by the mean annual
          outflow in cubic meters per unit of time.   Note that the
          outflow maybe less than the total inflow because of evapora-
          tion; withdrawals for irrigation, public water supply, or
          other uses are included in the outflow.
II.   PHYSICAL AND CHEMICAL CHARACTERISTICS

     These data are based on the sampling of each water body in the

spring, summer, and fall of 1975.   Depending on size, from one to many

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sites were sampled, and multiple depths usually were sampled at each

site.  For every parameter in this category,  except Secchi disc depth,

the median value is reported.   The median represents the middle value of

all sampling stations,.times,  and depths.   The mean of the SECCHI DISC

depths at all stations and all sampling times is given.

     MEDIAN ALKALINITY'CMG/L)  - total  alkalinity, as CaC03, in milligrams
          per liter.

     MEDIAN CONDUCTIVITY (UMHOS) - specific conductance at 25°C in
          micromhos per centimeter.

     MEAN SECCHI DISC (METERS) - the mean limit of visibility of a
          standard Secchi disc in meters.

     MEDIAN TOTAL PHOSPHORUS (MG/L)  -  as P in milligrams per liter.

     MEDIAN DISSOLVED PHOSPHORUS (MG/L)  - as P in milligrams per liter.

     MEDIAN INORGANIC NITROGEN (MG/L)   - nitrate + nitrite + ammonia,  as
          N, in milligrams per liter.

     MEDIAN TOTAL NITROGEN (MG/L)  - Kjeldahl nitrogen + nitrate +
          nitrite, as N.
III.  BIOLOGICAL CHARACTERISTICS

     MEAN CHLOROPHYLL A (UG/L) - the mean concentration pf all  samples,
          in micrograms per liter.

     ALGAL ASSAY CONTROL YIELDS (MG/L-DRY WT)  -  for most of the water
          bodies are based on two or more values,  in milligrams per
          liter dry weight, obtained from samples  collected during the first
          (spring) and last (fall)  samplings.   If  more than one sample was
          taken, the values shown represent the  range of yields, and the
          number following in parentheses indicates the number  of samples
          assayed.  The test organism was Selenastrum caprigprnutum Printz.

     LIMITING NUTRIENT (no units) - may be determined by two procedures
          which are (1) the growth  response of Selenastrum capricornutum
          to the addition of various amounts of  phosphorus or mtrpgen
          or (2) the ratio of inorganic nitrogen to dissolved phosphorus
          determined from the sampling data.   When the inorganic nitrogen

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          to dissolved phosphorus ratio is 14/1  or greater, the water
          body is considered phosphorus limited, whereas ratios of less
          than 14/1 are considered indicative of nitrogen limitation.
     The LIMITING NUTRIENT at each sampling time is given.   Except for the
first and last sampling dates, the limiting nutrient is based on N/P
ratios.   The limiting nutrient for the first and last sampling date
generally is based on algal assay results.  However, if no  value is
shown for the ALGAL ASSAY CONTROL YIELD,  the limiting nutrient for those
dates is determined by the N/P ratio.   Where "NO" is shown, nutrient
data were not obtained, and the limiting nutrient cannot be determined.
     SUMMARY OF PHYTOPLANKTON DATA - the COUNT of individuals, filaments,
          or colonies per milliliter of sample for each of  the five most
          numerous genera on the date shown.   The sum of the units of
          other genera present in the sample, but not specified, is also
          included.

IV.  NUTRIENT LOADING CHARACTERISTICS
     Nutrient loads of significant tributaries and the water body out-
let(s) were calculated using the results of analyses of from 12 to 14
samples collected from each stream by the State  National Guard monthly
for a one-year period and stream flow estimates  as provided by the U.S.
Geological Survey through an interagency agreement.   The nutrient loads
of the unsampled portion of the drainage areas were estimated from the
measured nutrient loads in the sampled streams in the area.  Nutrient
loads of all streams and the unsampled drainage  area were estimated on
the basis of a year of average or "normal" stream flow to minimize the
influence of extreme hydrological events that may have occurred during
the sampling year.

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     Sewage treatment plant nutrient loads were determined from results

of analyses of from 5 to 14 monthly effluent samples and corresponding

flow data provided by plant operators or by State agency personnel.   For

sewage treatment plants which were not sampled and those from which

fewer than five samples were received, nutrient discharges were esti-

mated on the basis of the population served by the facility.

     For details of sampling procedures and methods of calculation,

refer to NES Working Paper No.  175.

     A.    INPUT - an estimate of all external inputs of nitrogen and
     phosphorus to the water body.

     POINT SOURCE MUNICIPAL (KG/YR) - an estimate of annual nitrogen and
          phosphorus inputs from municipal sewage treatment plants in
          kilograms per year.

     POINT SOURCE INDUSTRIAL (KG/YR) - an estimate of annual  nitrogen
          and phosphorus inputs from industrial waste treatment plants
          in kilograms per year.

     POINT SOURCE SEPTIC TANKS (KG/YR) - an estimate of annual nitrogen
          and phosphorus inputs from septic tanks within approximately
          90 meters of the shoreline in kilograms per year.  If a value
          is shown for nitrogen but not phosphorus, the estimated phos-
          phorus input was less than 5 kg.

     NON-POINT SOURCE (KG/YR)  - an estimate of the annual nitrogen and
          phosphorus inputs from tributaries, immediate^ drainage, and
          precipitation in kilograms per year.

     TOTAL LOADING (KG/YR) - the sum of all external nitrogen and phos-
          phorus inputs.

     LAKE SURFACE AREA LOADING RATE (G/SQ M/YR) - the total loading for
          the sampling year divided by the lake surface area

          ( ? %r x 10-3) in grams per square meter of surface area per

          year.

     B.    OUTPUT - an estimate of the annual nitrogen and phosphprus
     discharged through the lake OUTLET(S) (KG/YR) in kilograms per
     year.  Asterisks indicate little or no outlet flow (and output)
     during the sampling year.

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                                   7

     PERCENT RETENTION - the percentage of incoming nitrogen or phospho-
          rus retained in the lake annually:
                    .Input load-output load
                           input load
V.   NON-POINT SOURCE NUTRIENT EXPORT

     STREAM NAME -

     MEAN FLOW (CMS) - the mean stream flow in a year of average hydrol-
          ogy in cubic meters per second.

     DRAINAGE AREA (SQ KM) - the drainage area of the stream in square
          kilometers.

     MEAN TOTAL P (MG/L) - the mean concentration of total  phosphorus in
          the stream at the sampling site during the year of sampling.

     MEAN TOTAL N (MG/L) - the mean concentration of total  nitrogen in
          the stream at the sampling site during the year of sampling.

     TOTAL P EXPORT (KG/SQ KM/YR) - the total  phosphorus load of the
          stream (after subtracting known point-source loads) divided by
          the drainage area, in kilograms per square kilometer per year.
          Asterisks indicate the phosphorus was less than 0.1 kg if a
          value is shown for nitrogen.

     TOTAL N EXPORT (KG/SQ KM/YR) - the total  nitrogen load of the
          stream (after subtracting known point-source loads) divided by
          the drainage area, in kilograms per square kilometer per year.
                    AVAILABILITY OF WORKING PAPERS

     Compendium users desiring more detailed information may obtain a

copy of the report on the water body of interest.   Requests to the

National Eutrophication Survey should include the NAME of the water body

and the WORKING PAPER NO. as shown in the compendium heading.

     Requests may be addressed to:

               National Eutrophication Survey, EPA
               Corvallis Environmental Research Laboratory
               200 S.W. 35th Street
               Corvallis, OR  97330

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                                  8
     Only limited numbers of the Working Papers can be provided by NES.
When these are exhausted, Working Papers can be obtained from:
               National Technical Information Service
               Department of Commerce
               Springfield, VA  22161
     The NTIS accession number is shown in the compendium heading.  A
blank or a series of zeros indicates numbers that were not available at
the time of this printing; these accession numbers can be obtained from
NES at the address shown on page 7.

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NAME       - BIG LAKE
COUNTY     - APACHE
STORE! NO. - 0401
                          COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES  IN ARIZONA

                                  (EUTROPHIC)

                          WORKING PAPER NO.  726, NTIS ACCESSION NO. PB-279 258/AB
I. MOHPHOMETRY
                 LAKE TYPE

                 NATURAL
                          DRAINAGE AREA
                             (SO KM)
SURFACE AREA
  (SO KM)
   1.44
MEAN DEPTH   ' TOTAL INFLOW
 (METERS)        (CMS)
                                                     RETENTION TIME
                                                          (YEARS)
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)    CONDUCT IVIT Y(UMHOS)
           77.                101.
                                        MEAN SECCHI DISC
                                             (METERS)
                                               2.9
4.4 »«»•<
MEDIAN
TOTAL P(MG/L)
0.032
MEDIAN
ORTHO P(MG/L)
0.007
0*»000
MEDIAN
INORG N(MG/L>
0.090
MEDIAN
TOTAL N(MGXL)
0.820
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            2.9                 0.2 -   9.5 ( 2)
                                                   LIMITING NUTRIENT AT SAMPLING TIME

                                                   ( 6/19/75) N       (10/ 6/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              6/19/75
   GENERA
   CRYPTOMONAS
   SCHROEDERIA
   CYSTS
   TRACHELOMONAS
   EUGLENA
   OTHER

   TOTAL
                                          10/ 6/75
                        COUNT   GENERA
                           92   APHANOTHECE
                           23   MELOSIRA
                           23   CHROOMONAS
                           23   ASTERIONELLA
                           23   COELOSPHAERIUM
                            0   OTHER

                          184   TOTAL
IV.
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
     PHOSPHORUS
     NITROGFN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
                        OUTLET (S)
                        (KG/YR)
POINT SOURCE
INDUSTRIAL (KG/YR)
 oooooooooo
 oooooooooo
              COUNT
                480
                137
                137
                 69
                 69
                113

               1005
                                                           POINT SOURCE
                                                          SEPTIC TANKS  (KG/YR)
                                     NON-POINT SOURCE
                                            (KG/YR)
                                         TOTAL LOADING
                                                (KG/YR)
                                           *«••*•**«•
                                     PERCENT
                                    RETENTION
      LAKE SURFACE AREA LOADING RATE
                (G/SO M/YR)
                                            LAKE SAMPLING ONLY ««««

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                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY  LAKES  IN ARIZONA
NAME
COUNTY
- FOOLS HOLLOW LAKE
- NAVAJO
STORET NO. - 0*02

I. MORPHOMETRY
        (EUTROPHIC)

WORKING PAPER NO.  737, NTIS ACCESSION NO. P8-279 256/AB
                 LAKE TYPE

                 IMPOUNDMENT
                   DRAINAGE AREA
                      (SO KM)
                      282.30
                 SURFACE AREA
                   (SQ KM)
                    0.57
          MEAN DEPTH
           (METERS)
             7.0
        TOTAL INFLOW
           (CMS)
          0.080
RETENTION TIME
    (YEARS)
     31.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
           81.                152.
                                 MEAN SECCHI DISC
                                      (METERS)
                                        o.n
                                     MEDIAN
                                  TOTAL P(MG/L)
                                     0.059
                              MEDIAN
                           ORTHO P(MG/L)
                              0.01*
                               MEDIAN
                            INOR6 N(MG/L)
                               0.090
                       MEDIAN
                    TOTAL N(M6/L)
                       0.640
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
           10.7                 0.3 -  13.0  ( 2)
                                            LIMITING NUTRIENT AT SAMPLING  TIME
                    SUMMARY OF PHYTOPLANKTON DATA
              3/ 4/75
                                               6/19/75
   GENERA
   CHHOOMONAS
   CRYPTOMONAS
   CYCLOTELLA
   MELOSIRA
   FLAGELLATES
   OTHER

   TOTAL
                 COUNT
                  2587
                  1053
                   511
                   421
                   391
                  1142
      GENERA
      MELOSIRA
      COELASTRUM
      OOCYSTIS
      CRYPTOMONAS
      SCENEDESMUS
      OTHER
                             6105   TOTAL
                                            ( 3/ 4/75) N
        COUNT
         1681
          193
          193
          154
          135
          696

         3052
                                                                ( 6/19/75) N
          10/ 6/75
GENERA
MELOSIRA
APHANIZOMENON
TRACHELOMONAS
CRYPTOMONAS
ANKISTRODESMUS
OTHER

TOTAL
                                                                                   (10/ 6/75) N
 COUNT
  7673
   310
   194
   116
   116
   466

  8875
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITHOGEN
        POINT SOURCE
        MUNICIPAL .(KG/-Y.R)
                  65.
                 140.

             OUTLET(S)
             (KG/YR)
                                        POINT SOURCE
                                        INDUSTRIAL (KG/YR)
           PERCENT
          RETENTION
           00000
           00000
                                 POINT SOURCE
                                SEPTIC TANKS (XG/YRI
                                          5.
                                        140.
                               NON-POINT  SOURCE
                                      
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                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN  ARIZONA
NAME       - LAKE HAVASU               (MESOTROPHIC)
COUNTY     - MOHAVEt AZI SAN BERNADINO. CA
STORET NO. - 0403             WORKING PAPER NO.  728t NTIS ACCESSION NO. PB-
                                                                /AB
I. MOHPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
           463091.80
       SURFACE AREA
             CONDUCT IVITY(UMHOSI
          136.                995.
                         MEAN SECCHI DISC
                              (METERS)
                                2.0
                           MEDIAN
                        TOTAL PIMG/L)
                           0.015
                     MEDIAN
                  ORTHO P(MG/L)
                     0.005
                      MEDIAN
                   INORG N
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                              COMPENDIUM OF NATIONAL EUTHOPHICATION SURVEY LAKES  IN  ARIZONA
NAME       - LUNA LAKE
COUNTY     - APACHE
STORET NO. - 0404
                                  (FUTROPHIC)

                          WORKING PAPER NO.  729, NTIS ACCESSION NO. PB-281 462/AB
I. MORPHOMETHY
                 LAKE TYPE
                 IMPOUNDMENT
                              DRAINAGE AREA
                                 (SO KM)
                                  93.50
                                           SURFACE AREA
                                             (SO KM)
                                              0.30
                       MEAN DEPTH
                        (METERS)
                          2.5
                        TOTAL  INFLOW
                            (CMS)
                           0.110
 RETENTION TIME
     (DAYS)
     107.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
           97.                220.
                                        MEAN SECCHI DISC
                                             (METERS)
                                               2.6
                           MEDIAN
                        TOTAL P(MG/L)
                           0.182
                               MEDIAN
                            ORTHO P(MG/L)
                               0.131
       MEDIAN
    INORG N(MG/L)
       0.050
      MEDIAN
   TOTAL NCMG/L)
      0.720
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            3.4                  6.2 -  13.3  ( 2)
                                                   LIMITING NUTRIENT AT SAMPLING  TIME
                                                   ( 4/30/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              4/30/75
   GENERA
   CRYPTOMONAS
   CHROOMONAS
   CYCLOTELLA
   SYNEDRA
   ANKISTROOESMUS
   OTHER

   TOTAL
                                           6/18/75
                        COUNT   GENERA
                         2990   OSCILLATOPIA
                         1627   ANABAENA
                          308   FRAGILARIA
                          132   APHANIZOMENON
                           88   CRYPTOMONAS
                           44   OTHER

                         5189   TOTAL
                     COUNT
                       420
                       262
                       210
                       105
                       105
                         0
                                                                       ( 6/18/75)  N
                           10/  6/75
                GENERA
                CRYPTOMONAS
                OSCILLATORIA
                NITZSCHIA
                             OTHER
IV.
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
               POINT SOURCE
               MUNICIPAL (KG/YR)
                        105.
                        285.

                    OUTLET(S)
                    (KG/YR)
                      540.
                     2320.
                                        POINT SOURCE
                                        INDUSTRIAL (KG/YR)
                      1102   TOTAL
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                                                      (10/ 6/75) N
  COUNT
     34
     34
     34
                                                         102
                                                                                              ro
 PERCENT
RETENTION
    5.
   49.
                                NON-POINT SOURCE
                                      (KG/YR)
                                        465.
                                       4240.
            TOTAL LOADING
                   (KG/YR)
                    570.
                   4525.
1.AKE SURF-ACE AREA LOADING  RATE
           (G/SQ M/YR)
              1.90
              15.1
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    SAN FRANCISCO RIVEB          0.100
                                       DRAINAGE A«EA
                                          (SO KM)
                                            75.4
                    MEAN TOTAL P
                       (MG/L)
                        0.165
                        MEAN TOTAL N
                           (MG/L)
                           O.S92
TOTAL P EXPORT
(KG/SO KM/YR)
      5.
TOTAL N EXPORT
(KG/SO KM/YR)
      42.

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NAME       - LYMAN LAKE
COUNTY     - APACHE
STORET NO. - 0405
           COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARIZONA

                   (EUTROPHIC)

           WORKING PAPER NO.  730. NTIS ACCESSION NO. pa-zai STO/AB
I. MORPHOMETRY
                 LAKE TYPE
                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
             2046.10
           SURFACE AREA
              (SO KM)
              5.67
          MEAN DEPTH
            (METERS)
             6.7
TOTAL INFLOW
   (CMS)
  0.800
RETENTION TIME
    (YEARS)
      2.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
          169.                307.
                         MEAN SECCHI DISC
                              (METERS)
                                0.4
                               MEDIAN
                            TOTAL PIMG/L)
                               0.099
                              MEDIAN
                           OHTHO P(MG/L)
                              0.056
                      MEDIAN
                   INORG NIMG/L)
                      0.060
                      MEDIAN
                   TOTAL N(MG/L)
                      0.430
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            2.6                  5.8 -   8.6  ( 2)
                                    LIMITING NUTRIENT AT SAMPLING TIME

                                    (  4/30/75) N       ( 6/19/75) N
              4/30/75
                    SUMMARY OF PHYTOPLANKTON DATA
   GENERA
   CRYPTOMONAS
   COCCONEIS
   NITZSCHIA
   PHACUS

   OTHER

   TOTAL
         COUNT
            62
            31
            31
            31

             0

           155
           6/19/75
GENERA
CHROOMONAS
STEPHANODISCUS
OTHER

TOTAL
                          10/ 6/75
        COUNT   GENERA
          234   CHROOCOCCUS
           39   CHHOOMONAS
                STEPHANODISCUS
                CRYPTOMONAS
                ANABAENA
            0   OTHER

          273   TOTAL
                                                                          (10/ 6/75) N
                 COUNT
                   276
                   184
                    46
                    46
                    46
                    45

                   643
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
        1425.
        3535.

     OUTLETIS)
     (KG/YR)
      3445.
     43090.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
     PERCENT
    RETENTION
       65.
       10.
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
                            000000000°
                                   35.
                               NON-POINT SOURCE
                                     (KG/YR)
                                      8300.
                                     44355.
                           TOTAL LOADING
                                 (KG/YR)
                                  9725.
                                 47925.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              1.72
               8.5
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                (CMS)
    LITTLE COLORADO RIVER        0.730
                        DRAINAGE AREA
                           (SO KM)
                           1934.7
                        MEAN TOTAL P
                           (MG/L)
                            0.328
                       MEAN TOTAL N
                          (MG/L)
                           1.516
               TOTAL P EXPORT
               (KG/SO KM/YR)
                     4.
                TOTAL N EXPORT
                (KG/SU KM/YR)
                      19.

-------
NAME       - LAKE MOHAVE
COUNTY     - MOHAVE. AZ; CLARK, NV
STOHET NO. - 0406             WORKING PAPER NO.
        COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARIZONA

                (MESOTROPHIC)

                           731, NTIS ACCESSION NO. PB-282 827/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
        DRAINAGE AREA
           (SO KM)
        438486.80
           SURFACE AREA
             (SO KM)
            105.63
          MEAN DEPTH
           (METERS)
            18.9
TOTAL INFLOW
   (CMS)
314.950
RETENTION TIME
    (DAYS)
     73.0
ii. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
          137.                884.
                      MEAN SECCHI DISC
                           (METERS)
                             3.3
                               MEDIAN
                            TOTAL P(MG/L)
                               0.017
                              MEDIAN
                           ORTHO P(MG/L)
                              0.010
                      MEDIAN
                    INORG  N(MG/L)
                      0.240
                       MEDIAN
                    TOTAL N(MG/L)
                       0.600
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            4.4                 0.2 -   0.5 ( 5)
                                 LIMITING NUTRIENT AT SAMPLING TIME

                                 ( 3/26/75) P       ( 6/12/75) P
                    SUMMARY OF PHYTOPLANKTON DATA
              2/26/75
   GENERA
   CYCLOTELLA
   CHROOMONAS
   OSCILLATORIA
   CRYPTOMONAS
   SYNEORA
   OTHER

   TOTAL
                                               6/12/75
      COUNT
        802
        698
        419
        349
        314
          0
GENERA
CHROOMONfAS
CYSTS
OOCYSTIS
FRAGILARIA
CERATIUM
OTHER
                             2582   TOTAL
                          12/ 3/75
        COUNT   GENERA
          401   CHROOMONAS
          21U   RAPHIDIOPSIS
          182   CYCLOTELLA
          146   SCENEDESMUS
           36   SYNEDRA
           37   OTHER

         1020   TOTAL
                                                          <12/  2/75)  P
                 COUNT
                   378
                   310
                   206
                   103
                    69
                    69

                  1135
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
                      oeoooooooo
                  POINT SOURCE
                  INDUSTRIAL (KG/YR)
  OUTLET(S)
  (KG/YR)
 203395.
8797855.
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
                                    5.
                                  175.
                               NON-POINT SOURCE
                                      (KG/YR)
                                    252955.
                                  12216250.
                           TOTAL  LOADING
                                  (KG/YR)
                                252960.
                               12216425.
     PERCENT
    RETENTION
       20.
       28.
LAKE SURFACE AREA LOADING RATE
          (6/SQ M/YR)
              2.39
             115.7
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                (CMS)
    COLORADO RIVER             314.740
                     DRAINAGE AREA
                        (SO KM)
                      434601.8
                        MEAN TOTAL P
                           (MG/L)
                            0.033
                       MEAN TOTAL N
                           (MG/L)
                           2.016
               TOTAL P EXPORT
               (KG/SO KM/YR)
                     0.6
                TOTAL  N  EXPORT
                 (KG/Sli KM/YR)
                       28.

-------
NAME
COUNTY
       - LAKE PLEASANT
       - MARICOPA, YAVAP4I
STORET NO. - 0407

I. MORPHOMETRY
COMPENDIUM OF NATIONAL EUTROPHJCAT ION SURVEY LAKES IN ARIZONA

        (EUTROPHIC)

WORKING PAPER NO.  733, NTIS ACCESSION NO. P8-281 402/AB

II.
LAKE TYPE DRAINAGE AREA
(SO KM)
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY(MGXL) CONDUCT I V I TY ( UMHOS )
173. 492.
SURFACE AREA
(SO KM)
14.16
MEAN SECCHI DISC
(METERS)
1.3
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (YEARS)
MEDIAN MEDIAN MEDIAN
TOTAL PIMG/L) ORTHO P(MG/L) INORG N(MG/L)
0.027 0.004 0.040

MEDIAN
TOTAL NIMG/L)
0.520
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT)
            9.8                 0.4 -   1.5  < 2)
                                                   LIMITING NUTRIENT AT SAMPLING TIME
                                                    ( 3/ 5/75) P
                    SUMMARY OF PHYTOPLANKTON DATA
              3/ 5/75
   GENERA
   PERIOINIUM
   ANKISTRODESMUS
   CHROOMONAS
   CRYPTOMONAS
   MELOSIRA
   OTHER

   TOTAL
                                           6/17/75
                        COUNT   GENERA
                          540   CENTRIC DIATOM
                          295   TETRAEDRON
                          147   MELOSIRA
                           98   OACTYLOCOCCOPSIS
                           98   CHUCIGENIA
                          198   OTHER

                         1376   TOTAL
                               COUNT
                                 804
                                 739
                                 565
                                 544
                                 261
                                1239

                                4152
                                                                       (  6/17/75) N
          11/15/75
GENERA
DACTYLOCOCCOPSIS
TETRASTRUM
MELOSIRA
NITZSCHIA
CRUCIGENIA
OTHER

TOTAL
                                                                                          (11/17/75)  P
COUNT
 1518
  875
  875
  669
  437
 3188

 7562
IV.
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                                    POINT SOURCE
                                    INDUSTRIAL  (KG/YR)
                                 POINT SOURCE
                                SEPTIC TANKS  (KG/YR)
               NON-POINT SOURCE
                     (KG/YR)
          TOTAL LOADING
                (KG/YR)
PHOSPHORUS
B. OUTPUT
i\j T TDnrcrM

OUTLET(S)
(KG/YR)


PERCENT
RETENTION
O44tf O
                                                     LAKE SURFACE AREA LOADING RATE
                                                                (G/SO M/YR)
                                       »*«* LAKE SAMPLING ONLY ««««

-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN ARIZONA
NAME       - LAKE POWELL              (OLIGOTROPHIC—MESOTROPHIC)
COUNTY     - COCONINO, AZ; GARFIELD. KANE. SAN JUAN. UT
STORET NO. - 0408             WORKING PAPER NO.  733. NTIS ACCESSION NO. PB-281 514/AB

I. MORPHOMETRY

II.

LAKE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 279459.00
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCTIVITY (UMHOS)
130. 580.
SURFACE AREA
(SO KM)
653.16
MEAN SECCHI DISC
(METERS)
4.5
MEAN DEPTH
(METERS)
51.0
MEDIAN
TOTAL P1MG/L)
0.010
TOTAL INFLOW
(CMS)
393.800
MEDIAN
ORTHO P«

PERCENT
RETENTION
«««««
                                                     LAKE SURFACE AREA LOADING RATE
                                                               (G/SO M/YR)
                                                             oooaoooooo
TOTAL LOADING
      (KG/YR)
  •»•«*«•«**
  *»*••••••*
                                       «»«» LAKE SAMPLING ONLY •«»«

-------
NAME       - RAINBOW LAKE
COUNTY     - NAVAJO
STORET NO. - 0409
           COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN  ARIZONA

                   (EUTROPHIC)

           WORKING P4PER NO.  734, NTIS ACCESSION NO. PB-281 518/AB
I. MORPHOMETRY
                 LAKE TYPE

                 NATURAL
           DRAINAGE AREA
              (SO KM)
               26.20
       SURFACE AREA
         (SO KM)
          0.32
          MEAN DEPTH
            (METERS)
             4.6
TOTAL INFLOW
   (CMS)
  0.290
RETENTION TIME
    (DAYS)
    171.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
          118.                179.
                         MEAN SECCHI DISC
                              (METERS)
                                1.5
                           MEDIAN
                        TOTAL PIMG/L)
                           0.046
                              MEDIAN
                           ORTHO PIMG/L)
                              0.009
                      MEDIAN
                   INORG N(MG/L)
                      0.045
                      MEDIAN
                   TOTAL NIMG/L)
                      0.620
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    AHiAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT)
           16.4                 4.0 -   4.8  ( 2)
                                    LIMITING NUTRIENT AT SAMPLING TIME

                                    ( 3/ 4/75) N        ( 6/19/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/ 4/75
   GENERA                   COUNT   GENERA
   CYCLOTELLA               52327   FRAGILARIA
   CHROOMONAS                 706   EPITHEMIA
   CRYPTOMONAS                680   CRYPTOMONAS
   OOCYSUS                   419   CHROOMONAS
   ANKISTRODESMUS             419   COCCONEIS
   OTHER                     1125   OTHER

   TOTAL                    55676   TOTAL
                                               6/19/75
                                                            10/ 6/75
                                          COUNT   GENERA
                                          17976   FRAGILARIA
                                            618   CHROOMONAS
                                            353   CRYPTOMONAS
                                            265   EPITHEMIA
                                            132   COCCONEIS
                                            398   OTHER

                                          19742   TOTAL
                                                                                              (10/  1/75)  N
                                                      COUNT
                                                       3821
                                                        303
                                                        243
                                                        121
                                                         30
                                                         62

                                                       4580
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
          10.
         340.

     OUTLET(S)
     (KG/YR)
       340.
      6000.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
 PERCENT
RETENTION
   51.
   47.
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               10.
                              435.
                               NON-POINT SOURCE
                                      (KG/YR)
                                       675.
                                      10595.
                           TOTAL LOADING
                                 (KG/YR)
                                   695.
                                 11370.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              2.17
              35.5
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    WALNUT CREEK                 0.250
                        DRAINAGE AREA
                           (SQ KM)
                             21.8
                    MEAN TOTAL P
                        (MG/L)
                        0.074
                       MEAN TOTAL N
                          (MG/L)
                           1.012
               TOTAL P EXPORT
               (KG/SO KM/YR)
                    26.
                TOTAL N EXPORT
                (KG/SQ KM/YR)
                     396.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)           (MG/L)
    THOUT CREEK                  0.060            1.147
    GOOSEBERRY CREEK             0.061            0.767

-------
NAME       - THEODORE ROOSEVELT LAKE
COUNTY     - GILA
STORET NO. - 0410             WORKING PAPER NO.
           COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARIZONA

                   (MESOTROPHIC)

                              735, NTIS ACCESSION NO. PB-281 516/AB
   MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
            15084.20
       SURFACE AREA
         (SU KM)
         60.70
          MEAN DEPTH
           (METERS)
            28.0
TOTAL INFLOW
   (CMS)
 31.960
RETENTION TIME
    (YEARS)
      1.9
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
          124.                795.
                         MEAN SECCHI DISC
                              (METERS)
                                1.8
                           MEDIAN
                        TOTAL P(MG/L)
                           0.020
                              MEDIAN
                           ORTHO P(M6/L)
                              0.008
                      MEDIAN
                    INORG NIMG/L)
                      0.040
                       MEDIAN
                    TOTAL  N(M6/L)
                       0.220
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            4.1                 0.2 -   1.7 ( 4)
                                    LIMITING NUTRIENT AT SAMPLING TIME
                    SUMMARY OF PHYTOPLANKTON DATA
              3/ 5/75
   GENERA
   CHROOMONAS
   OACTYLOCOCCOPSIS
   CRYPTOMONAS
   GLENODINIUM
   ANKISTRODESMUS
   OTHER

   TOTAL
                            6/17/75
         COUNT   GENERA
          1343   PENNATE DIATOMS
           564   TETRAEDRON
           322   ANKISTRODESMUS
           161   CHROOMONAS
            54   ANABAENOPSIS
           189   OTHER

          2633   TOTAL
                                                        ( 3/ 4/75) N
                     COUNT
                       488
                       234
                       195
                       156
                       117
                       313
                                                        ( 6/17/75) N
                           11/1B/75
                GENERA
                CHROOMONAS
                KIRCHNERIELLA
                DACTYLOCOCCOPSIS
                SCENEDESMUS
                FRAGILARIA
                OTHER
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
       15050.
       47245.

     OUTLET(S)
     (KG/YR)
     22380.
    401180.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
                                                              1503   TOTAL
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                                                                           (11/18/75)  N
                 COUNT
                   639
                   486
                   256
                   102
                   102
                   563

                  2148
                                                                                                                                       00.
 PERCENT
RETENTION
   82.
   41.
                               NON-POINT SOURCE
                                      (KG/YR)
                                     111440.
                                     630815.
                           TOTAL  LOADING
                                  (KG/VR)
                                 126490.
                                678060.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              2.08
              11.2
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    SALT RIVER                   25.010
                        DRAINAGE AREA
                           (SO KM)
                          11152.5
                    MEAN TOTAL P
                       (MG/L)
                        0.142
                       MEAN TOTAL 61
                           (MG/L)
                           0.574
               TOTAL P EXPORT
               (KG/SO KM/YR)
                     9.
                 TOTAL  N  EXPORT
                 (KG/SQ KM/YR)
                       42.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME

    PINAL CREEK
    PINTO CREEK
    SALOME CHEEK
    TONTO CREEK
           MEAN TOTAL P
              (MG/L)
              0.110
              0.828
              0.026
              0.061
      MEAN TOTAL N
         (MG/L)
         0.879
         1.518
         0.421
         0.529

-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN ARIZONA

NAME       - SAN CARLOS RESERVOIR      (EUTROPHIC)
COUNTY     - GILA» GRAHAM, PINAL
STORET NO. - 0411             WORKING PAPER NO.  736, NTIS ACCESSION NO. P8-281 517/AB

I. MORPHOMETRY
II.
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            14.B                  0.4 -   0.8  ( 2)
LAKE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 33374.70
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCT IV I TY (UMHOS)
161. 1258.
SURFACE AREA
(SO KM)
52.61
MEAN SECCHI DISC
(METERS)
0.6
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (YEARS)
15.3 12.220 . 2.9
MEDIAN MEDIAN MEDIAN
TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L)
0.056 0.009 0.060

MEDIAN
TOTAL N(MG/L)
0.520
                           LIMITING NUTRIENT AT SAMPLING TIME
                           ( 3/ 4/75)
                    SUMMARY OF PHYTOPLANKTON DATA
              3/ 4/75
   GENERA
   ANKISTRODESMUS
   CRYPTOMONAS
   DACTYLOCOCCOPSIS
   KIPCHNERIELLA
   CHROOMONAS
   OTHER

   TOTAL
                   6/18/75
COUNT   GENERA
 2045   LYNGBYA
 1402   CARTERIA
  584   DACTYLOCOCCOPSIS
  467   CENTRIC DIATOM
  380   CERATIUM
 1256   OTHER

 6134   TOTAL
COUNT
 2463
 1351
  530
  424
  265
 1191
                                               ( 6/18/75) N
          11/10/75
GENERA
CHROOMONAS
OACTYLOCOCCOPSIS
EUGLENA
MESOSTIGMA
CHLAMYOOMONAS
OTHER
 6224   TOTAL
                                                                  (11/18/75) N
COUNT
 6312
  207
   89
   59
   59
  327

 7053
                                                                        CC
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN

v. NON-POINT-SOURCE NUTRIENT
    STREAM NAME

    GILA RIVER
    SAN CARLOS RIVER
T SOURCE
CIPAL (KG/YR)
1 565.
3680 .
OUTLET(S)
(KG/YR)
10165.
239960.
RIENT EXPORT
MEAN FLOW
(CMS)
10.090
1.620
POINT SOURCE
INDUSTRIAL (KG/YR)

PERCENT LAKE
RETENTION
98.
78.

DRAINAGE AREA
(SO KM)
29707.3
2659.3
POINT SOURCE
SEPTIC TANKS

NON-POINT SOURCE TOTAL LOADING
(KG/YR)

SURFACE AREA LOADING RATE
(G/SQ M/YW)
9.35
20.5

MEAN TOTAL P
(MG/L)
0.222
0.283




MEAN TOTAL
(MG/L)
2.040
1.132
(KG/YR)
4904 15 .
1073140.




N TOTAL P EXPORT
(KG/SO KM/YR)
15.
8.
(KG/fR)
491980.
1076820.




TOTAL N EXPORT
(KG/SO KM/YR)
31.
22.

-------
NAME       - LAKE AMADOR
COUNTY     - AMADOR
STORE! NO. - 0601
           COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA
                   (EUTROPHIC)
           WORKING PAPER NO.  739, NTIS ACCESSION NO. PB-       /AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
              151.30
           SURFACE AREA
             (SO KM)
              1.56
  MEAN DEPTH
   (METERS)
    17.4
TOTAL INFLOW
   (CMS)
  1.336
RETENTION TIME
    (DAYS)
    361.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALIN ITY(MG/L)    CONDUCT IVITY(UMHOS)
           73.                175.
                         MEAN SECCHI DISC
                              (METERS)
                                2.3
                               MEDIAN
                            TOTAL PIMG/L)
                               0.040
                      MEDIAN
                   ORTHO P(MG/L)
                      0.020
                      MEDIAN
                   INORG N(MG/L)
                      0.390
                       MEDIAN
                    TOTAL  NIMG/L)
                       0.680
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
           23.4                      6.7
                                    LIMITING NUTRIENT AT SAMPLING TIME

                                    (  3/14/75)  P       ( 6/26/75) P
                                                          (11/12/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/14/75
   GENERA
   CENTRIC DIATOM
   CHROOMONAS
   ASTERIONELLA
   STEPHANODISCUS
   HELOSIRA
   OTHER

   TOTAL
                                               6/26/75
         COUNT
         68733
           561
           421
           224
           112
           112
GENERA
FRAGILARIA
SCENEDE5MUS
CHROOMONAS
CRYPTOMONAS
PERIDINIUM
OTHER
                            70163   TOTAL
                  11/12/75
COUNT   GENERA
 5304   MELOSIRA
 3700   CHROOMONAS
 1375   GLENODINIUM
  360   CRYPTOMONAS
  262   CERATIUM
  361   OTHER

11362   TOTAL
                 COUNT
                  1064
                   172
                   144
                   144
                    29
                    28

                  1581
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
        2610.
        8065.

     OUTLET(S)
     (KG/YR)
      1800.
     68335.
                                        POINT SOURCE
                                        INDUSTRIAL (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
                            oeaeoooooo
     PERCENT     LAKE SURFACE AREA LOADING RATE
    RETENTION              (G/SO M/YR)
       53.                     2.45
       15i                     51.3
                       NON-POINT SOURCE
                              (KG/YR)
                              1205.
                              71915.
                            TOTAL  LOADING
                                  (KG/YR)
                                   3815.
                                  79980.
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                (CMS)
    JACKSON CREEK                0.899
                        DRAINAGE AREA
                           (SO KM)
                            109.8
                        MEAN TOTAL P
                           (MG/L)
                            0.301
               MEAN
                   (MG/L)
                   1.904
               TOTAL P  EXPORT
               (KG/SO KM/YR)
                     8.
                 TOTAL  N EXPORT
                 (KG/SO KM/YR)
                     469.

-------
NAMF.
COUNTY
STORET NO.
- BOCA RESERVOIR
- NEVADA
- 0602
COMPENDIUM OF NATIONAL EUTROPHICATIUN SURVEY LAKES IN CALIFORNIA

        (OLIGOTROPHIC)

WORKING PAPER NO.  740, NTIS ACCESSION NO. PB-       /AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                   DRAINAGE AREA
                      (SO KM)
                      445.50
                 SURFACE AREA
                   (Su KM)
                    3.97
          MEAN DEPTH
           (METERS)
            12.8
 TOTAL INFLOW
    (CMS)
   6.024
 RETENTION TIME
     (DAYS)
     112.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
           37.                 50.
                                 MEAN SECCHI DISC
                                      (METERS)
                                        3.2
                                     MEDIAN
                                  TOTAL P(MG/L)
                                     0.012
                              MEDIAN
                           ORTHO P(MG/L)
                              0.003
                       MEDIAN
                    INOR6 NIHG/L)
                       0.040
                       MEDIAN
                    TOTAL N(MG/L)
                       0.220
in. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT)
            1.7                 0.2 -   0.8  ( 2)
                                            LIMITING NUTRIENT AT SAMPLING TIME
                                                        ( 6/ 9/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              6/ 9/75
   GENERA
   TABELLARIA
   OSCILLATORIA
   CHROOMONAS
   CENTRIC DIATOM
   MELOSIRA
   OTHER

   TOTAL
                                    6/30/75
                 COUNT   GENERA
                   120   CHROOMONAS
                    90   STEPHANODISCUS
                    90   ASTERIONELLA
                    60   TABELLARIA
                    60
                    62   OTHER

                   482   TOTAL
                               COUNT
                                 114
                                  57
                                  57
                                  28
                                                               256
                                                                           I 6/30/75) P
                          ll/ 4/75
                GENERA
                TABELLARIA
                FRAGILARIA
                CHROOMONAS
                CRYPTOMONAS
                ASTERIONELLA
                OTHER

                TOTAL
                                                                                              (ll/  4/75)  P
                  COUNT
                    646
                    258
                    194
                    161
                    129
                      0

                   1388
                                                                                                       ro
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
             OUTLET(S)
             (KG/YR)
              2675.
             72570.
                             POINT SOURCE
                             INDUSTRIAL  (KG/YR)
                                 POINT SOURCE
                                SEPTIC TANKS (KG/YR)
           PERCENT
          RETENTION
             21.
              7.
                               NON-POINT SOURCE
                                      (KG/YR)
                                      3380.
                                      78165.
                            TOTAL LOADING
                                  (KG/YR)
                                   3380.
                                  78165.
LAKE SURFACE AREA LOADING RATE
          (G/SO M/YR)
              O.BS
              19.7
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME

    LITTLE TRUCKEE RIVER
    DRY CREEK
    EAST BOCA CANYON CREEK
                   MEAN FLOW
                     (CMS)
                      5.010
                      0.367
                      0.139
             DRAINAGE AREA
                (SO KM)
                 378.1
                  16.1
                   6.0
       MEAN TOTAL P
           (MG/L)
           0.017
           0.019
           0.061
MEAN TOTAL N
   (MG/L)
    0.353
    0.439
    0.887
TOTAL P EXPORT
(KG/SO KM/YR)
      6.
     11.
     78.
TOTAL N EXPORT
(KG/SQ KH/YR)
     133.
     318.
    1546.

-------
NAME       - LAKE 8RITTON
COUNTY     - SHASTA
STORET NO. - 0603
           COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA
                   (EUTROPHIC)
           WORKING PAPER NO.  741, NTIS ACCESSION NO. PB-       /AB
I. MORPHOMETRY
                 LAKE TYPE
                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
            11929.50
       SURFACE AREA
         (SCI KM)
          5.12
                                                               MEAN DEPTH
                                                                (METERS)
                                                                  9.8
 TOTAL INFLOW
    (CMS)
  97.520
 RETENTION TIME
     (DAYS)
       6.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITYIMG/L)   CONDUCTIVITY (UMHOS)
           74.                135.
                         MEAN SECCHI DISC
                              (METERS)
                                1.3
                           MEDIAN
                        TOTAL P(MG/L>
                           0 . 067
                                                                                   MEDIAN
                                                                                ORTHO P(M6/L)
                                                                                   0.047
                       MEDIAN
                     INORG N(MG/L)
                       0.115
                        MEDIAN
                    TOTAL  N
                        0.315
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT)
            4.8                 6.2 -   7.6 ( 2)

                    SUMMARY OF PHYTOPLANKTON  DATA
              3/26/75                          7/14/75
   GENERA                   COUNT   GENERA
   CENTRIC DIATOM              189   MELOSIRA
   CHROOMONAS                  54   ANABAENA
                                    SYNEDRA
                                    FRAGILARIA
                                    CHROOMONAS
   OTHER                        0   OTHER
                                                       LIMITING NUTRIENT AT SAMPLING TIME
                                                       ( 3/26/75) N
                                                             COUNT
                                                              1000
                                                               437
                                                               219
                                                               125
                                                               125
                                                               187
                                                                          ( 7/14/75) N
                                                            ll/ 3/75
                                                  GENERA
                                                  FRAGILARIA
                                                  OOCYSTIS
                                                  CHAETOCEROS
                                                  CHROOMONAS
                                                  CRYPTOMONAS
                                                  OTHER
   TOTAL
                              243   TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
   «»«•*««•»»
   «*«««•«*»«

     OUTLET(S)
     (KG/YR)
    226420.
   2454865.
POINT SOURCE
INDUSTRIAL (KG/YR)
      2960. «
      8510. »
                                                              2093   TOTAL
                                                               POINT SOURCE
                                                              SEPTIC TANKS (KG/YR)
                                                                        5.
                                                                      175.
                                                                           (ll/  3/75)  N
                                                      COUNT
                                                         138
                                                          79
                                                          39
                                                          39
                                                          20
                                                           0

                                                         315
                                                                                                                                     ro
        NON-POINT SOURCE
               (KG/YR)
             220350.
            2399770.
            TOTAL LOADING
                  IKG/YR)
                 223315.
                2408455.
 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (G/SQ M/YR)
 LOSS                    43.62
 LOSS    .                470.4
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME

    PIT RIVER
    CLARK CRF.EK
    BURNEY CREEK
    HAT CREEK
           MEAN FLOW
             (CMS)
             66.540
              1.080
              5.860
             23.220
   DRAINAGE AREA
      (SO KM)
     10328.9
        50.2
       471.4
       942.8
                                                            MEAN TOTAL P
                                                               (MG/L)
                                                                0.076
                                                                0.033
                                                                0.037
                                                                0.075
MEAN TOTAL N
   (MG/L)
    0.900
    0.340
    1.000
    0.422
TOTAL P EXPORT
(KG/SO. KM/YR)
     15.
     22.
     15.
     55.
TOTAL N EXPORT
(KG/SO KM/YR)
     182.
     231.
     392.
     323.
VI,
    MEAN NUTRIENT CONCENTRATIONS IN UNGAGEO STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)          (MG/L)
    CLAYTON CREEK                0.022           1.150
     » FISH HSTCHERIES.

-------
NAME       - LAKE CASITAS
COUNTY     - VENTURA
STORET NO. - 0604
      COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA

              (FUTROPHIC)

      WORKING PAPER NO.  742, NTIS ACCESSION NO. PB-       /AB
   MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
      DRAINAGE AREA
         (SO KM)
          89.40
       SURFACE AREA
         (SO KM)
         10.97
          MEAN DEPTH
           (METERS)
            28.6
 TOTAL INFLOW
    (CMS)
   0.522
 RETENTION TIME
     (YEARS)
      19.1
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITYIMG/L)   CONDUCT IVITY(UMHOS)
          143.                520.
                    MEAN SECCHI DISC
                         (METERS)
                           2.5
                           MEDIAN
                        TOTAL PIMG/L)
                           0.029
                              MEDIAN
                           ORTHO PIMG/L)
                              0.014
                       MEDIAN
                    INORG N(MG/L)
                       0.050
                       MEDIAN
                    TOTAL NCMG/L)
                       0.280
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
            (UG/L)              (MG/L—DRY WT)
            3.2               »•««.*.««.

                    SUMMARY OF PHYTOPLANKTON DATA
              3/ 7/75                          6/24/75
   GENERA                   COUNT   GENERA
   CHHOOMONAS                 268   DINOBRYON
   ANKISTRODESMUS             239   CHHOOMONAS
   SCENEDESMUS                 89
                               LIMITING NUTRIENT AT SAMPLING TIME
                               ( 3/ 7/75) N
                                     COUNT
                                      2973
                                       125
   OTHER
   TOTAL
                              596
                                    OTHER
                                    TOTAL
                                                  ( 6/24/75) N
                                       11/13/75
                             GENERA
                             CYCLOTELLA
                             MELOSIRA
                             CHROOMONAS
                             CRYPTOMONAS
                             ANKISTROOESMUS
                             OTHER
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                POINT SOURCE
                INDUSTRIAL (KG/YR)
OUTLET(S)
(KG/YR)
  445.
14865.
 PERCENT
RETENTION
 LOSS
   39.
                                                              3098    TOTAL
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               25.
                              865.
                                                                      (11/13/75) N
                                         COUNT
                                          1453
                                           305
                                           229
                                           152
                                           152
                                           386

                                          2677
                                                                                                                                      ro
                               NON-POINT SOURCE
                                     (KG/YR)
                                       395.
                                     23435.
                            TOTAL LOADING
                                  (KG/YR)
                                    420.
                                  24300.
LAKE SURFACE AREA LOADING RATE
          (G/SO M/YR)
             0.04
               2.2
V. NON-POINT-SOURCE NUTRIENT
    STREAM NAME

    COYOTE CREEK
     EXPORT
      MEAN FLOW
        (CMS)
         0.191
   DRAINAGE AREA
      (SO KM)
        34.2
       MEAN TOTAL P
          (MG/L)
           0.012
MEAN TOTAL N
   (MG/L)
    0.495
TOTAL P EXPORT
(KG/SO KM/YR)
      2.
TOTAL N EXPORT
(KG/SO KM/YR)
      87.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)           (MG/L)
    SANTA ANA CREEK              0.014            1.222
    HOBLES-CASITAS CANAL         0.020            0.530

-------
NAME       - LAKE CROWLEY
COUNTY     - MONO
STORET NO. - 0605
                          COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA

                                  (EUTROPHIC)

                          WORKING PAPER NO.  743, NTIS ACCESSION NO. PB-       /AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                          DRAINAGE  AREA
                             (SO KM)
SURFACE AREA
  (SCI KM)
  21.38
MEAN DEPTH
 (METERS)
  10.6
TOTAL INFLOW
   (CMS)
RETENTION TIME
    (YEARS)
   000000
II.  PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)    CONDUCT IV ITY (UMHOS)
          108.                 239.
                                        MEAN  SECCHl  DISC
                                             (METERS)
                                               3.2
                    MEDIAN
                 TOTAL P(MG/L)
                    0.046
                    MEDIAN
                 OHTHO PIMG/L)
                    0.034
                      MEDIAN
                   INORG N(MGXL)
                      0.045
III.  BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL  YIELD
           (UG/L)              (MG/L—DRY WT)
            5.8                      ?.7
                                                   LIMITING NUTRIENT AT SAMPLING TIME
                                                       (  6/10/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              6/10/75
   GENERA
   CHROOMONAS
   ASTERIONELLA
   OINOBRYON
   FRAGILARIA
   CRYPTOMONAS
   OTHER

   TOTAL
                                           6/30/75
                        COUNT   GENERA
                         1049   CHROOMONAS
                          504   ANA8AENA
                          378   ASTERIONELLA
                          252   SCHROEDERIA
                           84   CRYPTOMONAS
                            0   OTHER

                         2267   TOTAL
              COUNT
                892
                803
                758
                580
                312
                668
                                                                      (  6/30/75) N
                ll/ 5/75
      GENERA
      APHANIZOMENON
      FRAGILARIA
      CHROOMONAS
      OSCILLATORIA
      STEPHANODISCUS
      OTHER
IV.
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
                                    POINT SOURCE
                                    INDUSTRIAL (KG/YR)
PHOSPHORUS
B. OUTPUT
NITPOfiFN

OUTLET(S)
(KG/YR)


PERCENT
RETENTION
ooooo
                                                              4013   TOTAL
                POINT SOURCE
               SEPTIC TANKS  (KG/YR>
                 oooooooooo
                                                                                          (ll/  5/75)  N
                 COUNT
                   421
                   225
                   168
                   140
                   112
                     29

                   1095
                       MEDIAN
                   TOTAL  N(MG/L)
                       0.275
                                                                                       to
                     NON-POINT  SOURCE
                            (KG/YR)
                        0000000000
                            TOTAL LOADING
                                  (KG/YR)
                              00*0*000**
                                                     LAKE SURFACE AREA LOADING RATE
                                                               (G/SQ M/YR)
                                                             0000000000
                                       oooo LAKE SAMPLING ONLY «»*»

-------
NAME
COUNTY
STORE! NO.
- DON PEDRO RESERVOIR
- TUOLUMNE
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN  CALIFORNIA

                                       (MESOTROPHIC)
           - 0606
                   WORKING PAPER NO.  744, NTIS ACCESSION NO. PB-
                                                                        /AB
I. MOHPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                   DRAINAGE AREA
                      (SO KM)
                     3957.90
 SURFACE AREA
   (SO KM)
   52.45
                       MEAN DEPTH
                        (METERS)
                         47.7
TOTAL INFLOW
   (CMS)
 46.86U
RETENTION TIME
    (YEARS)
      1.7
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
           19.                 44.
                                 MEAN SECCHI DISC
                                      (METERS)
                                        3.0
                     MEDIAN
                  TOTAL P(MG/L)
                     0.013
                                           MEDIAN
                                        ORTHO P(MG/L)
                                           0.004
                      MEDIAN
                   INOPG NIMG/L)
                      0.060
                      MEDIAN
                   TOTAL N(MG/L)
                      0.250
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            3^6                ««»»»*•«•»
                                            LIMITING NUTRIENT AT SAMPLING TIME
                    SUMMARY OF PHYTOPLANKTON DATA
              3/11/75
   GENERA
   CHROOMONAS
   MELOSIRA
   CRYPTOMONAS
   OTHER
   TOTAL
                                    6/25/75
                 COUNT   GENERA
                  1543   MELOSIRA
                   450   CHROOMONAS
                   107   CENTRIC DIATOM
                         CERATIUM
                         ASTERIONELLA
                     0   OTHER

                  2100   TOTAL
                                             ( 3/11/75) N
               COUNT
                2260
                 231
                 138
                  92
                  92
                 231
                                                                ( 6/25/75) P
                                       11/12/75
                             GENERA
                             CHROOMONAS
                             MELOSIRA
                             CRYPTOMONAS
                             FHAGILARIA
                             PERIOINIUM
                             OTHER
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
        POINT SOURCE
        MUNICIPAL (KG/YRI
               10625.
               23565.

             OUTLET(S)
             (KG/YR)
             26600.
           1328520.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
                                                               3044    TOTAL
                 POINT SOURCE
                SEPTIC TANKS (KG/YR)
                          5.
                        195.
                                                                                   (11/12/75)  P
                 COUNT
                   171
                   114
                    33
                    19
                    19
                     0

                   361
                                                                                                                                     rc
                                                                                                                                     at
                                            NON-POINT SOURCE
                                                  (KG/YR)
                                                  44305.
                                                1312590.
                           TOTAL LOADING
                                 (KG/YR)
                                 5493S.
                               1336350.
 PERCENT
RETENTION
   52.
    1.
       LAKE SURFACE AREA LOADING RATE
                 (G/SQ M/YR)
                     1.05
                     25.5
v. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    TUOLUMNE RIVER               27.750
    ROGER CRF.FK                  0.028
                                DRAINAGE AREA
                                   (SO KM)
                                   2393.2
                                     10.7
              MEAN TOTAL P
                 (MG/L)
                  0.022
                  0.056
                                    MEAN TOTAL N
                                       (MG/L)
                                        0.775
                                        1.822
               TOTAL P EXPORT
               (KG/SO KM/YR)
                     8.
                     5.
                TOTAL N EXPORT
                (KG/SO KM/YR)
                     283.
                     150.
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME
    N. FK.. TUOLUMNE RIVER
    HATCH CREEK
    MOCCASIN CREEK
    SULLIVAN CREEK
    WOODS CRFFK *
    TURNBACK CREEK »
                   MEAN TOTAL P
                      (MG/L)
                      0.027
                      0.026
                      0.040
                      0.061
                      0.704
                      0.441
MEAN TOTAL N
   (MG/L)
   0.910
   1.601
   0.957
   1.189
   2.797
   1.798
    « BELOW  POINT SOUHCE.

-------
NAME       - LAKE ELSINORE
COUNTY     - RIVERSIDE
STORET NO. - 0607

I. MORPHOMETRY
II.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
           70.6                 6.3 -  16.5 ( 3)
                              COMPENDIUM  OF  NATIONAL  EUTROPHICATION  SURVEY LAKES IN CALIFORNIA

                                      (HYPEREUTROPHIC)

                              WORKING PAPER  NO.   745.  NTIS  ACCESSION NO.  PB-       /AB
LAKE TYPE DRAINAGE AREA
(SO KM)
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCT I VI TY (UMHOS)
940. 5545.
SURFACE AREA
(SO KM)
10.52
MEAN SECCHI DISC
(METERS)
0.3
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (YEARS)
MEDIAN MEDIAN MEDIAN
TOTAL PIMG/L) ORTHO P(MG/L) INORG N(MG/L)
0.469 0.092 0.120

MEDIAN
TOTAL N(MG/L>
3.035
                                                       LIMITING NUTRIENT AT SAMPLING  TIME
                    SUMMARY OF PHYTOPLANKTON DATA
              3/10/75
   GENERA
   CHLAMYDOMONAS
   ANKISTRODESMUS
   CYCLOTELLA
   CRYPTOMONAS
   CHLOROGONIUM
   OTHER

   TOTAL
                                               6/23/75
                            COUNT   GENERA
                            99798   CHLAMYDOMONAS
                            34004   ANABAENOPSIS
                             2213   ANKISTRODESMUS
                             2213   CYCLOTELLA
                              805   OSCILLATORIA
                              402   OTHER

                           139435   TOTAL
                                                        ( 3/10/75) N
                     COUNT
                     10045
                      5281
                      2485
                       414
                       362
                       674
                                                                           ( 6/23/75)  N
          11/13/75
GENERA
CHLOROPHYTAN CELLS
CHLOROCOCCALAN CELL
ANKISTRODESMUS
NITZSCHIA
PENNATE DIATOMS
OTHER
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A.  INPUT
     PHOSPHORUS
     NITROGEN
    8.  OUTPUT
     PHOSPHORUS
                   POINT  SOURCE
                   MUNICIPAL (KG/YR)
POINT SOURCE
INDUSTRIAL (KG/YR)
                                                             19261    TOTAL
                                                               POINT SOUHCE
                                                              SEPTIC TANKS (KG/YR)
                                                                                              (11/13/75) N
                                                       COUNT
                                                       79650
                                                       25519
                                                       12663
                                                       11406
                                                        7733
                                                        4544

                                                      141515
                                                                                              ro
                                                                                              03
                                            NON-POINT SOURCE
                                                   (KG/YR)
                        OUTLET(S)
                        (KG/YR)
 PERCENT
RETENTION
 00000
                                    TOTAL LOADING
                                          
-------
NAME
COUNTY
- FALLEN LEAF LAKE
- EL DORADO
                              COMPENDIUM OF NATIONAL EUTROPHICAT ION  SURVEY LAKES  IN CALIFORNIA

                                       (OLI60TPOPHIC)
STORET NO. - 0608

I. MORPHOMETRY
                              WORKING PAPER NO.   746, NTIS  ACCESSION  NO.  PB-
                                                                                    /AB
                 LAKE TYPE

                 NATURAL
                   DRAINAGE AREA
                       (SO KM)
                       43.30
       SURFACE AREA
         (SQ KM)
          5.71
          MEAN DEPTH
           (METERS)
             1.5
TOTAL INFLO*
   (CMS)
  1.510
RETENTION TIME
    (DAYS)
     64.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
           12.                 14.
                                 MEAN SECCHI  DISC
                                       (METERS)
                                        12.1
                           MEDIAN
                        TOTAL P1MG/L)
                           0.007
                              MEDIAN
                           ORTHO P(MG/L)
                              0.005
                      MEDIAN
                    INORG NIMG/L)
                      0.040
                       MEDIAN
                    TOTAL  N(MG/L>
                       0.220
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL  A     ALGAL  ASSAY  CONTROL  YIELD
            (UG/L)              (MG/L—DRY  WT)
             0.8                «o««»«»»oe
                                             LIMITING NUTRIENT  AT  SAMPLING TIME
                                             (  3/18/75)  N
                     SUMMARY  OF  PHYTOPLANKTON  DATA
               3/18/75
   GENERA                    COUNT    GENERA
   CRYPTOMONAS                 205    SYNEDRA
   NITZSCHIA                   160    CYCLOTELLA
   DINOBRYON                   160    DINOBRYON
   CYCLOTELLA                  114
   CHLAMYDOMONAS                91
   OTHER                       114    OTHER

   TOTAL                       844    TOTAL
                                                6/27/75
                                                   COUNT
                                                      20
                                                      10
                                                      10
                                                       0

                                                      40
                                                                (  6/27/75)  N
                                       ll/ 4/75
                             GENERA
                             CHROOMONAS
                             DINOFLAGELLATES
                             OTHER

                             TOTAL
                                                                                   (ll/ 4/75) P AND N
                                         COUNT
                                            43
                                            21
                                              0

                                            64
                                                        ro
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
     PHOSPHORUS       »«««•«»»««
     NITROGEN         «»«*»*o«««
                             POINT SOURCE
                             INDUSTRIAL  (KG/YR)
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               50.
                             1810.
                               NON-POINT SOURCE
                                      (KG/YR)
                                       585.
                                      36445.
                           TOTAL LOADING
                                  (KG/YR)
                                    635.
                                 38255.
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
             OUTLET(S)
              (KG/YR)
               510.
             28475.
 PERCENT
RETENTION
   20.
   26.
LAKE SURFACE AREA LOADING RATE
          (G/SO M/YR)
              0.11
               6.7
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME           •     MEAN FLO*
                                 (CMS)
    GLEN ALPINE CREEK             1.037
                                DRAINAGE  AREA
                                    (SO KM)
                                      28.0
                    MEAN TOTAL P
                       (MG/L)
                        0.011
                       MEAN TOTAL N
                          (MG/L)
                           0.699
               TOTAL P EXPORT
               (KG/SO KM/YR)
                    13.
                TOTAL  N  EXPORT
                (KG/SO KH/YR)
                     805.

-------
NAME       - LAKE HENNESSEY
COUNTY     - NAPA
STORE! NO. - 0609
      COMPENDIUM OF  NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA
              (EUTROPHIC)
      WORKING PAPER  NO.   747,  NTIS ACCESSION NO.  PB-       /AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
      DRAINAGE AREA
         (SO KM)
         134.70
       SURFACE  AREA
         (SO  KM)
          3.52
                                            MEAN DEPTH
                                             (METERS)
                                              10.5
                                     TOTAL INFLOW
                                        (CMS)
                                       1.353
RETENTION TIME
    (YEARS)
      1.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)    CONDUCTIVITY(UMHOS)
          131.                247.
                    MEAN  SECCHI  DISC
                         (METERS)
                           2.1
                           MEDIAN
                        TOTAL  P(MG/L)
                           0.027
                                                                MEDIAN
                                                             ORTHO PIMG/L)
                                                                0.012
                                                           MEDIAN
                                                        INORG  N(MG/L)
                                                           0.060
                     •MEDIAN
                    TOTAL  N
                       0.350
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            4.5                      5.4
                               LIMITING NUTRIENT AT SAMPLING TIME

                               (  3/13/75)  N       ( 6/26/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/13/75
   GENERA
   CHROOMONAS
   ASTERIONELLA
   STEPHANODISCUS
   SYNEDRA
   CRYPTOMONAS
   OTHER

   TOTAL
                       6/26/75
    COUNT   GENERA
     2039   GLOEOCYSTIS
      105   APHANIZOMENON
       35   CHROOMONAS
       18   MELOS1RA
       18   COELASTRUM
       18   OTHER

     2?33   TOTAL
                                       11/11/75
                     COUNT    GENERA
                       780    CLOSTERIUM
                       654    APHANIZOMENON
                       503    CRYPTOMONAS
                       151    CHROOMONAS
                       101    ANKISTRODESMUS
                       328    OTHER

                      2517    TOTAL
                                                                      (11/11/75)  N
                                                                           COUNT
                                                                              262
                                                                               75
                                                                               37
                                                                               37
                                                                               37
                                                                                0

                                                                              448
                                                                                              00
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
POINT SOURCE
INDUSTRIAL (KG/YR)
                                                               POINT SOURCE
                                                              SEPTIC TANKS (KG/YR)
OUTLET(S)
(KG/YR)
 7760.
39955.
 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (G/SQ M/YR)
 LOSS                     1.46
   35.                     17.5
                                                            NON-POINT SOURCE
                                                                   (KG/YR)
                                                                   5155.
                                                                  61695.
                                                                 TOTAL LOADING
                                                                       (KG/YR)
                                                                        5155.
                                                                       61695.
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    CONN CREEK                   0.483
    CHILES CREEK                 0.266
    CLEAR CREEK                  0.354
                   DRAINAGE AREA
                      (SQ KM)
                        33.4
                        47.1
                        35.5
                    MEAN TOTAL P
                       (MG/L)
                        0.232
                        0.045
                        0.048
                                                         MEAN TOTAL N
                                                             (MG/L)
                                                              1.325
                                                              1.239
                                                              1.174
                                                     TOTAL P EXPORT
                                                     (KG/SO KM/YR)
                                                         106.
                                                           8.
                                                          15.
                 TOTAL N EXPORT
                 (KG/SO KM/YR)
                      604.
                      221.
                      369.
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                  (MG/L)           (MG/L)
    UNNAMED CREEK HI              0.054            1.587
    SAGE CREEK                    0.082            1.803

-------
NAME       - LAKE HENSHAW
COUNTY     - SAN DIEGO
STORE! NO. - 0610
      COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN CALIFORNIA

               (EUTROPHIC)

      WORKING PAPER NO.  748. NTIS ACCESSION NO. PB-       /AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
      DRAINAGE AREA
         (SO KM)
         533.50
       SURFACE AREA
         (SO KM)
         24.36
          MEAN DEPTH
           (METERS)
             6.1
TOTAL INFLOW
   (CMS)
  0.964
RETENTION TIME
    (YEARS)
      5.7
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
          170.                540.
                    MEAN SECCHI DISC
                         (METERS)
                           1.0
                           MEDIAN
                        TOTAL P(MG/L>
                           0.138
                              MEDIAN
                           ORTHO P(MG/L)
                              0.073
                      MEDIAN
                   INORG N(MG/L)
                      0.070
                      MEDIAN
                   TOTAL N(MG/L)
                      0.620
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
           26.8                      7.6
                               LIMITING NUTRIENT AT SAMPLING TIME

                               ( 3/ 7/75) N        ( 6/23/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/ 7/75
   GENERA
   MALLOMONAS
   CHROOMONAS
   ANKISTRODESMUS
   CRYPTOMONAS
   MELOSIRA
   OTHER

   TOTAL
                       6/23/75
    COUNT   GENERA
     7701   ANACYSTIS(MICROCYSTIS)
      553   ANKISTHODESMUS
      277   GLENODINIUM
      184   CHROOMONAS
      184   KIRCHNERIELLA
      323   OTHER

     9222   TOTAL
                                       11/13/75
                     COUNT   GENERA
                       987   OSCILLATORIA
                       816   CHROOMONAS
                       258 .  ANKISTRODESMUS
                       258   PEDIASTRUM
                       215   MELOSIRA
                       728   OTHER

                      3262   TOTAL
                                                                      (11/13/75)  N
                                         COUNT
                                           681
                                           367
                                           314
                                           209
                                           209
                                           577

                                          2357
                                                        ro
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
                POINT SOURCE
                INDUSTRIAL (KG/YR)
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
OUTLET(S)
(KG/YR)
 5510.
39460.
 PERCENT
RETENTION
 LOSS
   44.
                               NON-POINT SOURCE
                                     (KG/YR)
                                      2115.
                                     70365.
                           TOTAL LOADING
                                 (KG/YR)
                                  2115.
                                 70365.
LAKE SURFACE AREA LOADING RATE
          (G/SO M/YR)
             0.09
               2.9
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    SAN LUIS REY RIVER           0.156
    W. FK., SAN LUIS KEY R.      0.125
                   DRAINAGE AREA
                      (SO KM)
                        87.0
                        66.0
                    MEAN TOTAL P
                       (MG/L)

                        O.C29
                       MEAN TOTAL N
                          (MG/L)

                           1.403
               TOTAL P EXPORT
               (KG/SO KM/YR)
                     4.»
                     2.
                TOTAL N EXPORT
                (KG/SO KM/YR)
                      85.»
                      84.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME

    CARISTA CREEK
    UNNAMED STREAM E-l
    UNNAMED STREAM F-l
    SPARLING CREEK
    UNNAMED STREAM H-l
      MEAN TOTAL P
         (MG/L)
         0.057
         0.020
         0.047
         0.065
         0.071
      MEAN TOTAL N
         (MG/D
         1.572
         0.860
         1.559
         1.232
         1.507
    * ESTIMATED

-------
NAME
COUNTY
STORE! NO. - 0611

I. MORPHOMETHY
                   COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN CALIFORNIA
- IROM GATE RESERVOIK      (EUTROPHIC)
- SISKIYOU
                   WORKING PAPER NO.   749, NTIS ACCESSION NO. PB-       /AB

II.
LAKE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 11838.90
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCT I VITY (UMHOS)
71. 150.
SURFACE AREA
(SO KM)
3.39
MEAN SECCHl DISC
(METERS)
1.5
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (DAYS)
21.4 74.483 11.0
MEDIAN MEDIAN MEDIAN
TOTAL P(MG/L) 0«THO P(MG/L) INOR6 N(M6/L)
0.184 0.124 0.690

MEDIAN
TOTAL N(M6/L)
1.520
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/D              (MG/L—DRY *T)
            6.2                26.7 -  33.2 ( 2)
                                            LIMITING NUTRIENT AT SAMPLING TIME

                                            (  3/27/75)  N       ( 7/16/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/27/75
   GENERA
   CRYPTOMONAS
   STEPHANODISCUS
   CHROOMONAS
   PENNATE DIATOMS
   EUGLENA
   OTHER

   TOTAL
                                    7/16/75
                 COUNT   GENERA
                  1976   SCHROEDERIA
                  12S7   SYNEDRA
                   247   CRYPTOMONAS
                    62   MELOSIRA
                    62   APHANIZOMENON
                    60   OTHER

                  3704   TOTAL
                                       10/31/75
                     COUNT    GENERA
                       435    OSCILLATORIA
                        73    CRYPTOMONAS
                        73    APHANIZOMENON
                        73    STEPHANODISCUS
                        36    CHROOMONAS
                         0    OTHER

                       690    TOTAL
                                                      (10/31/75)  N
                                         COUNT
                                            133
                                            80
                                            53
                                            53
                                            27
                                              0

                                            346
                             GO,
                             O
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
                             POINT SOURCE
                             INDUSTRIAL (KG/YR)
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
             OUTLET(S)
             (KG/YR)
            345290.
           4944425.
 PERCENT
RETENTION
    7.
 LOSS
                               NON-POINT  SOURCE
                                      (KG/YR)
                                    372800.
                                   4085210.
TOTAL LOADING
      (KG/YR)
     372800.
    4085210.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
            109.97
           1205.1
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    KLAMATH RIVER                70.400
    FALL CREEK                   0.230
    CAMP CREEK                   0.283
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGOGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)           (MG/L)
    JENNY CREEK                  0.036            0.686
    SCOTHCH CREEK                0.036            1.117
DRAINAGE AREA
(SO KM)
11181.0
37.8
43.3
MEAN TOTAL P
(MG/L)
0.163
0.033
0.059
MEAN TO.TAL N
(MG/L)
1.766
0.6^3
0.970
                                                                                  TOTAL P EXPORT
                                                                                  (KG/SQ KM/YR)
                                                                                       33.
                                                                                        6.
                                                                                       12.
                                                                      TOTAL N EXPORT
                                                                      (KG/SQ KM/YR)
                                                                           356.
                                                                           133.
                                                                           200.

-------
NAME       - LOPEZ RESERVOIR
COUNTY     - SAN LUIS OBISPO
STORET NO. - 0614
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA

                                      (EUTROPHIC)

                              WORKING PAPER NO.  750, NTIS ACCESSION NO. PB-       /AB
I.  MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                              DRAINAGE AREA
                                  (SO KM)
                                  175.30
       SURFACE AREA
         (SO KM)
          3.80
 MEAN DEPTH
  (METERS)
   16.6
TOTAL INFLOW
   (CMS)
  0.336
RETENTION TIME
    (YEARS)
      7.3
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITYfMG/L)    CONDUCTIVITY(UMHOS)
          337.                493.
                                            MEAN SECCHI DISC
                                                 (METERS)
                                                   3.3
                           MEDIAN
                        TOTAL PtMG/L)
                           0.371
                     MEDIAN
                  OHTHO P(MG/L)
                     0.343
                      MEDIAN
                   INORG N(MG/L>
                      0.090
                      MEDIAN
                   TOTAL NIMG/L)
                      0.540
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT)
            8.7                 4.5 -  12.9 ( 2)
                                                       LIMITING NUTRIENT  AT SAMPLING  TIME
                                                        1 3/10/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/10/75
   GENERA
   CERATIUM
   FRAGILARIA
   STEPHANODISCUS
   CRYPTOMONAS
   EUGLENA
   OTHER

   TOTAL
                                               6/25/75
                            COUNT   GENERA
                              534   CHROOMONAS
                              140   APHANIZOMENON
                               56   SCHROEOERIA
                               56   FRAGILARIA
                               28   STEPHANODISCUS
                                0   OTHER

                              814   TOTAL
                     COUNT
                       298
                       216
                       162
                        81
                        54
                        55

                       866
                                                                           ( 6/25/75) N
                 11/12/75
       GENERA
       CHROOMONAS
       APHANI20MENON
       CRYPTOMONAS
       CERATIUM
       OOCYSTIS
       OTHER

       TOTAL
                                                                                              (11/12/75)  N
                 COUNT
                   191
                   127
                   127
                    64
                    42
                    21

                   572
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)

                      ooooeooooo

                        OUTLET (S)
                        (KG/YR)
                         2835.
                         7865.
POINT SOURCE
INDUSTRIAL (KG/YR)
 oooooooooo
 0000000000
 POINT SOURCE
SEPTIC TANKS (KG/YR)
          5.
        280.
       NON-POINT SOURCE
             (KG/YR)
              4270.
             11705.
           TOTAL LOADING
                 (KG/YR)
                  4275.
                 11985.
 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (G/SQ M/YR)
   34.                     1.12
   34.                      3.2
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                (CMS)
    ARROYO GRANDE CREEK          0.044
    LOPEZ CRFFK                  0.1*6
                                           DRAINAGE AREA
                                               (SO KM)
                                                35.2
                                                55.9
                    MEAN TOTAL P
                       (MG/L)
                        0.789
                        0.197
              MEAN TOTAL N
                 (MG/L)
                  1.419
                  0.464
               TOTAL P EXPORT
               (KG/SO KM/YR)
                    31.
                    16.
                TOTAL N EXPORT
                (KG/SO KM/YR)
                      56.
                      38.

-------
NAME       - LAKE MARY
COUNTY     - MONO
STORE! NO. - 0615
  COMPENDIUM OF  NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA

          (OLIGOTROPHIC)

  WORKING PAPER  NO.   751, NTIS ACCESSION NO. PB-282 633/AB
I. MORPHOMETRY
                 LAKE TYPE

                 NATURAL
  DRAINAGE AREA
     (SO KM)
SURFACE AREA
  (SQ KM)
   0.42
MEAN DEPTH    TOTAL INFLOW
 (METERS)         (CMS)
   8.2     ««««»«»«««
                                                      RETENTION TIME
                                                          (YEARS)
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)    CONDUCT IVI TV(UMHOS)
           21.                 33.
                MEAN SECCHI DISC
                     (METERS)
                       5.2
                    MEDIAN
                 TOTAL P(MG/L)
                    0.010
                    MEDIAN
                 ORTHO P(MG/L)
                    0.002
                                                            MEDIAN
                                                         INORG NIMG/L)
                                                            0.040
   MEDIAN
TOTAL N(MG/L>
   0.220
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L:—DRY WT)
            2.6                »»««»o»««*
                           LIMITING NUTRIENT AT SAMPLING TIME

                           (  6/30/75)  P        111/ 5/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              6/30/75
   GENERA
   SYNEORA
   ASTERIONELLA
   CRYPTOMONAS
   DINOBRYON
   CHROOMONAS
   OTHER

   TOTAL
                  ll/ 5/75
COUNT   GENERA
  568   ASTERIONELLA
  487   DINOBRYON
   81   CRYPTOMONAS
   41   CHROOMONAS
   41   SYNEDRA
   41   OTHER

 1259   TOTAL
IV.
    NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YP)
     PHOSPHORUS
     NITROGF/N
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
                        OUTLET(S)
                        (KG/YR)
POINT SOURCE
INDUSTRIAL (KG/YR)
 <>««««««»««
              COUNT
                215
                132
                 83
                 66
                 17
                  0

                513
                                   POINT SOURCE
                                  SEPTIC TANKS  (KG/YR)
                                                                       rc
                                      NON-POINT SOURCE
                                            (KG/YR)
                                          TOTAL LOADING
                                                (KG/t«»
                                            *«*«****««
             PERCENT
            RETENTION
      LAKE SURFACE AREA LOADING  RATE
                 (G/SQ M/YR)
                                       •*»« LAKE SAMPLING ONLY *»««

-------
NAME       - LAKE MENDOCINO
COUNTY     - MENDOCINO
STOHET NO. - 0616
  COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA

          (MESO-EUTROPHIC)

  WORKING PAPER NO.  752. NTIS ACCESSION NO. PB-282 598/AB
   MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
  DRAINAGE AREA
     (SO KM)
     371.90
SURFACE AREA
  (SO KM)
   7.92
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
           76.                 104.
                MEAN SECCHI DISC
                     (METERS)
                       1.6
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (DAYS)
19.1 10.952 168.0
MEDIAN
TOTAL P(MG/L)
0.020
MEDIAN
ORTHO P(MG/L)
0.006
MEDIAN
INORG N(MG/L)
0.050
                                                                     MEDIAN
                                                                  TOTAL  N(MG/L)
                                                                     0.320
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY  CONTROL  YIELD
            (UG/L)              (MG/L—DRY  WT)
            3.1                ««»«»««««e
                           LIMITING NUTRIENT AT SAMPLING TIME
                    SUMMARY OF PHYTOPLANKTON  DATA
              3/12/75
   GENERA
   MELOSIRA
   CHROOMONAS
   OTHER

   TOTAL
                   6/26/75
COUNT   GENERA
  313   CHROOMONAS
   57   ANKISTRODESMUS
        CRYPTOMONAS
    0   OTHER

  370   TOTAL
                                                        (  3/12/75)  N
              COUNT
               1168
                 64
                 64
                  0

               1316
                                              ( 6/26/75) N
          11/11/75
GENERA
CHROOMONAS
OSCILLATORIA
CRYPTOMONAS
MELOSIRA
STEPHANODISCUS
OTHER

TOTAL
                                                                                              (11/11/75)  N
COUNT
 1101
  227
  194
   81
   81
  115

 1799
00
GO
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
            POINT SOURCE
            INDUSTRIAL (KG/YR)
                POINT SOURCE
               SEPTIC TANKS (KG/YR)
PHOSPHORUS
N ITROGF. N
B. OUTPUT


PHOSPHORUS
NITROGEN
NON-POINT^SOURCE
STREAM NAME



OUTLET(S)
(KG/YR)
19285.
275870.
NUTRIENT EXPORT
MEAN FLOW
(CMS)
EAST FORK RUSSIAN RIVER 10.480


PERCENT LAKE
RETENTION
39.
30.

DRAINAGE AREA
(SQ KM)
238.8


SURFACE AREA


LOADING RATE
(G/SQ M/YR)
3.96
49.6

MEAN TOTAL
(MG/L)
0.079



P MEAN TOTAL N
(MG/L)
0.984
               NON-POINT SOURCE
                     (KG/YR)
                     31360.
                    393180.
          TOTAL LOADING
                (KG/YR)
                31360.
               393180.
                                                                                             TOTAL  P  EXPORT
                                                                                             (KG/SO KM/YR)
                                                                                                 118.
                                                                                 TOTAL N EXPORT
                                                                                 (KG/SU KM/YR)
                                                                                      1457.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNG4GED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)           (MG/L)
    COLD CREEK                   0.082            0.931

-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA
NAME
COUNTY
- NICASIO RESERVOIR
- MARIN
STORET NO. - 0617

I. MORPHOMETRY
        (EUTROPHIC)
WORKING PAPER NO.  753, NTIS ACCESSION NO. PB-
                                                                                   /AB
                 LAKE TYPE

                 IMPOUNDMENT
                   DRAINAGE AREA
                      (SQ KM)
                       93.20
                 SURFACE AREA
                   (SQ KM)
                    3.42
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
           67.                140.
                                 MEAN SECCHI DISC
                                      (METERS)
                                        0.4
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
            (UG/L)             (MG/L—DRY *T)
          MEAN  DEPTH
           (METERS)
             8.1
TOTAL INFLOW
   (CMS)
  1.353
RETENTION TIME
    (DAYS)
    256.0
                                     MEDIAN
                                  TOTAL P(MG/L)
                                     0.055
                              MEDIAN
                           ORTHO PIMG/L)
                              0.013
                       MEDIAN
                    INORG  NIMG/L)
                       0.345
                       MEDIAN
                    TOTAL NIMG/L)
                       0.690
                                            LIMITING NUTRIENT AT SAMPLING TIME

                                            ( 3/13/75) N        < 6/26/75) P
                                                                                              (11/11/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/13/75
   GENERA
   CRYPTOMONAS
   CHROOMONAS
   STEPHANODISCUS
   OTHER
   TOTAL
                                    6/26/75
                 COUNT   GENERA
                   362   STEPHANODISCUS
                   226   CHROOMONAS
                    90   APHANIZOMENON
                         CRUCIGENIA
                         APHANOCAPSA
                     0   OTHER

                   678   TOTAL
                                                  11/11/75
                               COUNT   GENERA
                                3156   CRYPTOMONAS
                                 298   PEDIASTRUM
                                 149   ASTERIONELLA
                                 124   MELOSIRA
                                  99   TRACHELOMONAS
                                 250   OTHER

                                4076   TOTAL
                                         COUNT
                                           297
                                           231
                                            99
                                            66
                                            33
                                            66

                                           792
                                                                                                                                      CO
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
     PHOSPHORUS       «*»»««o«««
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
             OUTLET IS)
              (KG/YR)
              2575.
             68470.
                             POINT SOURCE
                             INDUSTRIAL  (KG/YR)
                                 POINT SOURCE
                                SEPTIC TANKS  (KG/YR)
           PERCENT
          RETENTION
           LOSS
              3.
                               NON-POINT SOURCE
                                      (KG/YR)
                                      2055.
                                      70440.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
             0.60
              20.6
                            TOTAL LOADING
                                  (KG/YR)
                                   2055.
                                  70440.
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    NICASIO CREEK                0.456
    HALLECK CREEK                0.328
                                DRAINAGE AREA
                                    (SQ KM)
                                     31.3
                                     22.5
                              MEAN TOTAL P
                                  (MG/L)
                                  0.047
                                  0.046
                       MEAN TOTAL N
                           (MG/L)
                           1.474
                           1.684
                TOTAL P EXPORT
                (KG/SO KM/YR)
                     22.
                     21.
                 TOTAL N EXPORT
                 (KG/SQ KM/YR)
                      677.
                      774.

-------
                              COMPENDIUM OF NATIONAL EUTROPHICAT ION  SURVEY LAKES  IN  CALIFORNIA

NAME       - LOWER OTAY RESERVOIR      (EUTROPHIC)
COUNTY     - SAN DIEGO
STORET NO. - 0618             WORKING  PAPER NO.  754, NTIS  ACCESSION NO.  PB-       /AB
I. MORPHOMETRY
LAKE TYPE

IMPOUNDMENT
                              DRAINAGE AREA
                                  (SO KM)
                                  256.40
                                           SURFACE AREA
                                              (SO KM)
                                              4.5fl
  MEAN DEPTH    TOTAL INFLOW
   (METERS)        (CMS)
         RETENTION TIME
              (YEARS)
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITYIMG/L)   CONDUCT I V ITY (UMHOS)
          151.                875.
                                        MEAN SECCHI DISC
                                             (METERS)
                                                1.3
MEDIAN
TOTAL P(MG/L)
0.058
MEDIAN
OHTHO PIMG/L)
0.013
««««»«
MEDIAN
INORG NIMG/L)
0.180
MEDIAN
TOTAL N(MG/L)
0.920
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            15.9                «»*«»•«»»>
                                                   LIMITING  NUTRIENT  AT SAMPLING  TIME
                                                        (  3/  7/75)  P
                                                                       (  6/30/75)  N
                                 (11/14/75) P AND  N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/ 7/75
   GENERA
   ASTERIONELLA
   COELASTRUM
   CRYPTOMONAS
   SCENEOESMUS
   OOCYSTIS
   OTHER

   TOTAL
                                           6/20/75
                        COUNT   GENERA
                         2170   APHANIZOMENON
                          457   DACTYLOCOCCOPSIS
                          381   OINOBKYON
                          304   OSCILLATORIA
                          266   ANABAENA
                          381   OTHER

                         3959   TOTAL
IV.
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                                    POINT SOURCE
                                    INDUSTRIAL  (KG/YR)
PHOSPHORUS
NITROGEN
8. OUTPUT
MT Toncrw

OUTLET(S)
(KG/YR)

*«««»•«*»»
PERCENT
RETENTION
aeooe
                  11/14/75
COUNT   GENERA                   COUNT
  370   OSCILLATORIA              6873
  148   CHLAMYDOMONAS             1430
   74   DACTYLOCOCCOPSIS           440
   74   SCENEDESMUS                440
   74   CRYPTOMONAS                385
   75   OTHER                      329

  815   TOTAL                     9897
  POINT SOURCE
 SEPTIC TANKS (KG/YR)
NON-POINT SOURCE
      (KG/YR)
                                                     LAKE SURFACE  AREA  LOADING RATE
                                                                (G/SQ  M/YR)
                                                 02
                                                 cn
                                                                                        TOTAL  LOADING
                                                                                              (KG/YR)
                                                                                          *«*«*«»«••
                                       »»«« LAKE SAMPLING ONLY ««•«

-------
NAME       - LAKE PILLSRUHY
COUNTY     - LAKE
STORET NO. - 0619
                         COMPENDIUM OF  NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA

                                 (EUTROPHIC)

                         WORKING PAPER  NO.   755,  NTIS  ACCESSION NO.  pe-282 646/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                         DRAINAGE AREA
                            (SO KM)
                            7*8.50
SURFACE AREA
  (SO KM)
   8.10
                       MEAN DEPTH
                        (METERS)
                         14.3
                                     TOTAL INFLOW
                                        (CMS)
                                      16.067
RETENTION TIME
    (DAYS)
     87.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)    CONDUCT IVITY(UMHOS)
           60.                 86.
                                       MEAN SECCHI  DISC
                                            (METERS)
                                              0.8
                    MEDIAN
                 TOTAL P(MG/L)
                    0.022
                                           MEDIAN
                                        ORTHO P(MG/L)
                                           0.008
                                                           MEDIAN
                                                         INORG NIHG/L)
                                                           0.060
                       MEDIAN
                    TOTAL NIMG/L)
                       0.230
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT)
            6.4                      0.6
                                                  LIMITING NUTRIENT AT SAMPLING TIME

                                                  (  3/12/75)  N        ( 6/26/75) P AND N (11/11/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/12/75
   GENERA
   SYNEDRA
   EUGLENA
   OTHER
   TOTAL
                                          6/26/75
                       COUNT    GENERA
                          10    ANARAENA
                          10    CRYPTOMONAS
                               TRACHELOMONAS

                           0    OTHER

                          20    TOTAL
                                11/11/75
              COUNT   GENERA
               1861   MELOSIRA
                 64   CRYPTOMONAS
                 64   DACTYLOCOCCOPSIS
                      CHROOMONAS
                  0   OTHER

               1989   TOTAL
                                                      COUNT
                                                        331
                                                         37
                                                         37
                                                         36
                                                           0

                                                        441
                                                                                                                                      CO
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
PHOSPHORUS
NITROGEN
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
POINT SOURCE
INDUSTRIAL (KG/YR)
                        OUTLET(S)
                        (KG/YR)
                        30910.
                       599395.
 PERCENT
RETENTION
 LOSS
 LOSS
                                                          POINT SOURCE
                                                         SEPTIC TANKS (KG/YR)
                                                                  10.
                                                                 425.
                                     NON-POINT  SOURCE
                                            (KG/YR)
                                            26005.
                                           455255.
                                                                 TOTAL LOADING
                                                                       (KG/YR)
                                                                       26015.
                                                                      455680.
      LAKE SURFACE AREA LOADING RATE
                (G/SQ M/YR)
                   3.21
                   56.3
   NON-POINT-SOURCE NUTRIENT EXPORT
    STRtAM NAME               MEAN FLOW
                                (CMS)
    EEL RIVER                    7.530
    RICE FORK                    4.720
    SQUAW VALLEY CREEK           0.215
    SMOKEHOUSE CREEK             0.775
    SALMON CREEK                 0.771
                                      DRAINAGE AREA
                                         (SO KM)
                                          362.6
                                          224.6
                                            9.1
                                           32.9
                                           32.6
             MEAN TOTAL P
                 (MG/L)
                 0.051
                 0.026
                 0.052
                 0.061
                 0.036
                                    MEAN TOTAL N
                                       (MG/L)
                                        0.720
                                        0.534
                                        0 . 845
                                        0.653
                                        1.045
                                                    TOTAL  P  EXPORT
                                                     (KG/SO KM/YR)
                                                          36.
                                                          20.
                                                         119.
                                                          53.
                                                          31.
                 TOTAL N EXPORT
                 (KG/SO KM/YR)
                      640.
                      349.
                     1769.
                      528.
                      965.

-------
NAME       - SANTA MARGARITA LAKE
COUNTY     - SAN LUIS OBISPO
STORET NO. - 0620             WORKING PAPER NO.
      COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN CALIFORNIA

              (EUTROPHIC)

                         756. NTIS ACCESSION NO. PB-282 779/AB
I. MORPHOMETRY
                 LAKE TYPE
                  IMPOUNDMENT
                              DRAINAGE  AREA
                                  (SO KM)
                                  290.10
                       SURFACE AREA
                          (SO KM)
                          3.18
                       MEAN DEPTH
                         (METERS)
                          10.1
                        TOTAL INFLOW
                            (CMS)
                          0.747
 RETENTION TIME
     (YEARS)
       1.6
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN              MEDIAN
    ALKALINITYIMG/L)   CONDUCT IV ITY(UMHOS)
           125.                 291.
                    MEAN SECCHI DISC
                         (METERS)
                           2.5
                           MEDIAN
                        TOTAL P(MG/L(
                           0.037
                              MEDIAN
                           ORTHO P1MG/L)
                              0.014
       MEDIAN
    INORG N(MG/L)
       0.070
      MEDIAN
   TOTAL N(MG/L)
      0.420
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A     ALGAL  ASSAY CONTROL  YIELD
            (UG/L)              (MG/L—DRY  WT)
            9.1                      8.0
                               LIMITING NUTRIENT  AT SAMPLING  TIME
                                                        (  3/10/75)  N
                    SUMMARY OF PHYTOPLANKTON  DATA
              3/10/75
   GENERA
   ASTERIONELLA
   CRYPTOMONAS
   OTHER
   TOTAL
                                                6/25/75
COUNT
4920
109
0
GENERA
MOUGEOTIA
SYNEDRA
DINOBRYON
ANABAENOPSIS
OSCILLATORIA
OTHER
                             5029   TOTAL
                                     COUNT
                                      2181
                                       488
                                       163
                                       130
                                       130
                                        98

                                      3190
                                                                           (  6/25/75)  N
                                       11/12/75
                             GENERA
                             DACTYLOCOCCOPSIS
                             CERATIUM
                             STEPHANODISCUS
                             DINOBRYON
                             GLENODINIUM
                             OTHER

                             TOTAL
                                                                                              (11/12/75)  N
                                         COUNT
                                           304
                                           152
                                           122
                                            91
                                            61
                                           121

                                           851
                                                                                                                                      GO
                                                                                                                                      -vl
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                POINT SOURCE
                INDUSTRIAL (KG/YR)
OUTLET(S)
(KG/YR)
  935.
14135.
 PERCENT
RETENTION
   39.
 LOSS
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                                5.
                              210.
                               NON-POINT SOURCE
                                      (KG/YR)
                                      1535.
                                      12880.
            TOTAL LOADING
                  (KG/YR)
                   1540.
                  13090.
LAKE SURFACE AREA LOADING RATE
          (G/SO M/YR)
              0.48
              4.1
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    SALINAS RIVER                0.501
    TORO CREEK                   0.017
                   DRAINAGE AREA
                      (SO KM)
                       182.1
                        24.8
                    MEAN TOTAL P
                       (MG/L)
                        0.039
                        0.102
                       MEAN TOTAL N
                          (MG/L)
                           0.259
                           0.688
TOTAL P EXPORT
(KG/SO KM/YR)
      3.
      5.
TOTAL N EXPORT
(KG/SO KM/YR)
      22.
      16.
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                  (MG/L)           (MG/L)
    ALAMO CREEK                   0.102            0.688

-------
NAME       - SHASTA LAKE
COUNTY     - SHASTA
STORET NO. - 0621
           COMPENDIUM OF  NATIONAL  EUTROPHICATION  SURVEY LAKES IN CALIFORNIA

                   (MESOTROPHIC)

           WORKING PAPER  NO.   757.  NTIS  ACCESSION NO.  PB-       /AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
           DRAINAGE  AREA
              (SO  KM)
            16630.40
 SURFACE  AREA
   (SO  KM)
  119.40
                       MEAN  DEPTH
                        (METERS)
                         46.5
TOTAL INFLOW
   (CMS)
295.380
RETENTION TIME
    (DAYS)
    217.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
           57.                 98.
                         MEAN SECCHI  DISC
                              (METERS)
                                3.0
                     MEDIAN
                  TOTAL  P(MG/L)
                     0.021
                                           MEDIAN
                                        ORTHO P(MG/L)
                                           0.015
                       MEDIAN
                    INORG  NIMG/L)
                       0.060
                       MEDIAN
                    TOTAL N
-------
NAME       - SHAVER LAKE
COUNTY     - FRESNO
STORE! NO. - 062?
                          COMPENDIUM OF NATIONAL EUTROPHICATION  SURVEY  LAKES  IN  CALIFORNIA

                                   (MESOTROPHIC)

                          WORKING  PAPER NO.   758. NTIS  ACCESSION NO.  PB-       /AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                          DRAINAGE AREA
                              (SCI KM)
                              75.40
       SURFACE AREA
         (SO KM)
          8.39
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT I V IT Y(UMHOS)
           13.                 18.
                                        MEAN SECCHI DISC
                                             (METERS)
                                               3.9
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (DAYS)
19.9 7.649 252.0
MEDIAN
TOTAL PfMG/L)
0.014
MEDIAN
ORTHO PIMG/L)
0.004
MEDIAN
INORG N
            1.7                      1.0
                                                   LIMITING NUTRIENT  AT SAMPLING  TIME

                                                    ( 6/ 4/75) P        ( 6/24/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              6/ 4/75
   GENERA
   SYNEORA
   PERIOINIUM
   ASTEHIONELLA
   ANKISTROOESMUS

   OTHER

   TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
                                               6/24/75
COUNT
27
20
20
7

0
74
GENERA
CHROOMONAS
MALLOMONAS
CRYPTOMONAS
OINOBRYON
SYNEDRA
OTHER
TOTAL
                                                         COUNT
                                                            193
                                                            97
                                                            32
                                                            32
                                                            32
                                                             0

                                                            386
                                       11/13/75
                             GENERA
                             CRYPTOMONAS
                             ANKISTRODESMUS
                             ACHNANTHES
                             OTHER
                                                                     TOTAL
                                                                                          (11/13/75)  N
                                         COUNT
                                            153
                                            44
                                            22
                                                                                                 219
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                                    POINT SOURCE
                                    INDUSTRIAL  (KG/YR)
                    OUTLET(S)
                    (KG/YR)
                     3620.
                    66825.
 PERCENT
RETENTION
 LOSS
 LOSS
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               10.
                              400.
                               NON-POINT SOURCE
                                     (KG/YR)
                                       870.
                                     37295.
TOTAL LOADING
      (KG/YR)
        880.
      37695.
LAKE SURFACE AREA LOADING RATE
          (G/SU M/YR)
             0.10
              4.5
VI.
MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                             (MG/L)          (MG/L)
N. FK. STEVENSON CREEK       0.025           1.565
MARKWOOD CREEK               0.019           0.740

-------
NAME       - SILVER LAKE
COUNTY     - MONO
STORET NO. - 0623
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN CALIFORNIA

         (OLIGOTROPHIC)

WORKING PAPER NO.  759. NTIS ACCESSION NO. PB-       /AB
   MORPhOMETRY
                 LAKE TYPE

                 NATURAL
DRAINAGE AREA
   (SO KM)
SURFACE AREA
  (SO KM)
   0.45
II. PHYSICAL AND CHEMICAL  CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)    CONDUCT IV ITY(UMHOS)
           23.                 33.
              MEAN SECCHI DISC
                   (METERS)
                     3.7
MEAN DEPTH
 (METERS)
  10. 5
                    MEDIAN
                 TOTAL PIMG/L)
                    0.012
TOTAL INFLOW
   (CMS)
RETENTION TIME
    (YEARS)
   **««««
                    MEDIAN
                 ORTHO P(MG/L)
                    0.003
                      MEDIAN
                    INORG N(MG/L)
                      0.055
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL  YIELD
           (UG/L)              (MG/L—DRY WT)
                         LIMITING NUTRIENT AT SAMPLING TIME
                    SUMMARY  OF PHYTOPLANKTON  DATA
              6/10/75
   GENERA
   CHROOMONAS
   OIN08RYON
   ASTERIONELLA
   CRYPTOMONAS
   SYNEDRA
   OTHER

   TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL (KG/YR)

COUNT
343
115
38
38
38
0
572
6/30/75
GENERA
CHROOMONAS
DINOBRYON
SYNEDRA
ASTERIONELLA

OTHER
TOTAL
i/75) N
COUNT
228
114
114
76
0
532
( 6/30/75) P
ll/
GENERA
CHROOMONAS
CKYPTOMONAS
DINOBRYON
OTHER
TOTAL
5/75


                                                                                             (ll/ 5/75) P
                                                                COUNT
                                                                    57
                                                                    45
                                                                    11
                                                                     0

                                                                   113
                       MEDIAN
                    TOTAL  N
-------
NAME       - TULLOCK RESERVOIR
COUNTY     - CALAVERAS. TUOLUMNE
STORE! NO. - 0634             WORKING PAPER NO.

I. MORPHOMETRY
           COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA

                   (EUTROPHIC)

                              760. NTIS ACCESSION NO. PB-       /AB
                 LAKE TYPE

                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
             2533.30
       SURFACE AREA
         (SO KM)
          5.10
 MEAN DEPTH
  (METERS)
   16.5
TOTAL INFLOW
   (CMS)
 51.590
RETENTION TIME
    (DAYS)
     19.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
           33.                 65.
                         MEAN SECCHI DISC
                              (METERS)
                                1.7
                           MEDIAN
                        TOTAL P(MG/L)
                           0.025
                     MEDIAN
                  ORTHO P(MG/L)
                     0.009
                      MEDIAN
                   INORG NIMG/L)
                      0.060
                      MEDIAN
                   TOTAL N(MG/LI
                      0.280
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L^-DRY WT)
           13.9               *•««*•««*«
                                    LIMITING NUTRIENT AT SAMPLING TIME

                                    ( 3/14/75) N        ( 6/25/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/14/75
   GENERA
   ACHNANTHES
   ASTERIONELLA
   SYNEDRA
   STEPHANODISCUS
   CRYPTOMON4S
   OTHER

   TOTAL
                            6/25/75
         COUNT   GENERA
          3664   ASTERIONELLA
          2006   STEPHANODISCUS
          1763   FRAGILARIA
           743   OSCILLATORIA
           297   OINOBRYON
           744   OTHER

          9437   TOTAL
                                       11/12/75
                     COUNT   GENERA
                       432   OSCILLATORIA
                       118   GLENODINIUM
                        79   ASTERIONELLA
                        79   CRYPTOMONAS
                        79   STEPHANODISCUS
                       195   OTHER

                       982   TOTAL
                                                      (11/12/75) P
                                COUNT
                                  225
                                  112
                                   37
                                   37
                                   37
                                  113

                                  561
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOUHCE
MUNICIPAL (KG/YR)
   eooooooeoo
   *o**o«oooo

     OUTLET(S)
     (KG/YR)
     32540.
   1506550.
POINT SOURCE
INDUSTRIAL (KG/YR)
 oooooooooe
 0000000000
 POINT SOURCE
SEPTIC TANKS (KG/YH)
         10.
        425.
       NON-POINT SOURCE
             (KG/YR)
             37410.
           1523520.
           TOTAL LOADING
                 (KG/YR)
                 37420.
               1528945.
 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (G/SQ M/YR)
   13.                     7.34
    1.                    299.8
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    STANISLAUS RIVER             49.840
    BLACK CRF.FK                  0.242
                        DRAINAGE AREA
                           (SQ KM)
                           2343.9
                             49.5
                    MEAN TOTAL P
                       (MG/L)
                        0.022
                        0.022
              MEAN TOTAL N
                 (MG/L)
                  0.916
                  1.473
               TOTAL P EXPORT
               (KG/SQ KM/YH)
                    15.
                     3.
                TOTAL N EXPORT
                (KG/SU KM/YH)
                     614.
                     227.
vi. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)           (MG/L)
    GREEN SPRING RUN             0.054            1.S15

-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN CALIFORNIA
NAME       - LOWER TWIN LAKE
COUNTY     - MONO
STORET NO. - 0626
          (MESOTROPHIC)

  WORKING PAPER  NO.   761,  NTI5 ACCESSION NO. PB-
                              /AB
I. MORPHOMETRY
LAKE TYPE

NATURAL
                              DRAINAGE AREA
                                 (SO KM)
                                 101.30
                   SURFACE AREA
                     ISO KM)
                      1.5?
          MEAN DEPTH
           (METERS)
            15. 2
 TOTAL INFLOW
    (CMS)
   1.699
 RETENTION TIME
     (DAYS)
     157.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS>
           26.                 25.
                MEAN SECCHI DISC
                     (METERS)
                       6.4
              MEDIAN
           TOTAL P(MG/L)
              0.014
       MEDIAN
    ORTHO P(MG/L)
       0.003
       MEDIAN
    INOR6 N(MG/L)
       0.040
                                                                                                   MEDIAN
                                                                                                TOTAL N(MG/L)
                                                                                                   0.220
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            2.9               »<,«««»»»«<,
  LIMITING NUTRIENT AT SAMPLING TIME

  (  3/19/75)  N       ( 7/ 1/75) P
                    SUMMARY OF PHYTOPLANKTON DATA
              3/19/75
   GENERA
   CHROOMONAS
   MELOSIRA
   SYNEORA
   STEPHANODISCUS
   ASTERIONELLA
   OTHER

   TOTAL
                   7/ 1/75
COUNT   GENERA
  275   MELOSIRA
   78   CRYPTOMONAS
   78   STEPHANODISCUS
   39   SYNEDRA
   39   FRAGILARIA
   40   OTHER

  549   TOTAL
                          ll/ 6/75
        COUNT   GENERA
           81   FRAGILARIA
           33   CRYPTOMONAS
           16   CHROOMONAS
           16   TABELLARIA
           16
            0   OTHER

          162   TOTAL
                                                                  (ll/  6/75)  P
                  COUNT
                      72
                      72
                      72
                      36
                                            252
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
            POINT  SOURCE
            INDUSTRIAL (KG/YR)
                        OUTLET(S)
                        (KG/YR)
                        51060.
             PERCENT
            RETENTION
               17.
             LOSS
          POINT SOURCE
         SEPTIC TANKS (KG/YR)
                  10.
                 360.
        NON-POINT SOURCE
              (KG/YR)
                825.
              48840.
            TOTAL LOADING
                  (KG/YR)
                    835.
                  49200.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              0.55
             32.4
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    ROBINSON CREEK                1.303
               DRAINAGE AREA
                  (SQ KM)
                    76.4
VI. MFAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                  (MG/L)           (MG/L)
    UNNAMED CREEK Bl              0.018            1.142
       MEAN TOTAL P
          (MG/L)
           0.015
MEAN TOTAL N
   (MG/L)
    0.730
TOTAL P EXPORT
(KG/SO KM/YR)
      8.
                                                                                             TOTAL  N  EXPORT
                                                                                             (KG/SO KM/YR)
                                                                                                  474.

-------
NAME       - UPPER TWIN LAKE
COUNTY     - MONO
STORET NO. - 0635
                          COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN CALIFORNIA

                                  (MESOTROPHIC)

                          WORKING PAPER NO.  762, NTIS ACCESSION NO. PB-       /AB
   MORPHOMETRY
                 LAKE TYPE

                 NATURAL
                          DRAINAGE AREA
                             (SO KM)
                              76.40
       SURFACE AREA
         
-------
NAME
COUNTY
- BARKER RESERVOIR
- BOULDER
STORET NO. - 0801

I. MORPHOMETRY
                              COMPENDIUM OF  NATIONAL  EUTROPHICATION SURVEY LAKES IN COLORADO

                                      (MESOTROPHIC)

                              WORKING PAPER  NO.   765,  NTIS ACCESSION NO. PB-271 470/AB
                 LAKE TYPE
                              DRAINAGE AREA
                                 (SQ KM)
                 IMPOUNDMENT      99.20

II.  PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)    CONDUCT I V ITY(UMHOS)
           18.                 29.
                                    SURFACE AREA
                                      (SQ KM)
                                       1.70
                                            MEAN SECCHI DISC
                                                 (METERS)
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (DAYS)
8.3 1.608 104.0
MEDIAN
TOTAL P(MG/L)
0.023
MEDIAN
ORTHO P(MG/L)
0.006
MEDIAN
INORG N(MG/L)
0.045
                                                                                                         MEDIAN
                                                                                                      TOTAL  N(M6/L)
                                                                                                         0.420
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            5.3               »»««««»«««
                                            LIMITING NUTRIENT AT SAMPLING  TIME

                                            ( 5/ 7/75) P ANO N  ( 8/26/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              5/ 7/75
   GENERA
   MELOSIRA
   CHROOMONAS
   FRAGILARIA
   CRYPTOMONAS
   MALLOMONAS
   OTHER

   TOTAL
                                    8/26/75
                 COUNT   GENERA
                  9734   FRAGILARIA
                   721   5PONOYLOSIUM
                   613   CHROOMONAS
                   216   MELOSIRA
                    72   ANA8AENA
                   108   OTHER

                 11464   TOTAL
                                                                               10/10/75
                                                             COUNT   GENERA
                                                              1381   CHLAMYDOMONAS
                                                               563   MELOSIRA
                                                               256   CHROOMONAS
                                                               104   OSCILLATORIA
                                                                51   CRYPTOMONAS
                                                               203   OTHER

                                                              2558   TOTAL
                                                                                              (10/10/75)  N
          COUNT
           6478
            748
            208
            125
             42
             81

           7682
IV.
    NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
                             POINT SOURCE
                             INDUSTRIAL (KG/YR)
                                                               POINT SOURCE
                                                              SEPTIC TANKS (KG/YR)
PHOSPHORUS
NITROGEN
B. OUTPUT


PHOSPHORUS
NITROGEN
V. NON-POINT-SOURCE
STREAM NAME

MIDDLE BOULDER
455.
1640.
OUTLET(S)
(KG/YR)
860.
26340.
NUTRIENT EXPORT
MEAN FLOW
(CMS)
CHEEK 1.550


PERCENT L-AKE
RETENTION
14.
16.

DRAINAGE AREA
(SQ KM)
93.8
SURFACE AREA
LOADING RATE
(G/SO M/YR)
0.59
18.5

MEAN TOTAL
(MG/L)
0.016



P MEAN TOTAi. N
(MG/L)
0.623
NON-POINT SOURCE
      (KG/YR)
        550.
      29880.
TOTAL LOADING
      
-------
NAME       - BARS LAKE
COUNTY     - ADAMS
STORET NO. - 0802

I. MORPHOMETRY
  COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN COLORADO

          (EUTROPHIC)

  WORKING PAPER NO.  766. NTIS ACCESSION NO. P8-278 507/AB
LAKE TYPE DRAINAGE AREA
(SO KM)
CHEMICAL CHARACTERISTICS
MEDIAN
i/L) CONDUCTIVITY (UMHOS)
591.
SURFACE AREA
(SO KM)
7.57
MFAN SECCHl DISC
(METERS)
1.2
MEAN DEPTH TOTAL INFLOW RE
(METERS) (CMS)
MEDIAN
TOTAL PIMG/L)
0.930
MEDIAN
ORTHO P(MG/L)
0.730
[TENTION TIME
(YEARS)
oooooo
MEDIAN
INORG NIMG/L)
1.090
MEDIAN
TOTAL N(MG/L)
2.960
         MEDIAN
    ALKALINITYtMG/L)
           162.

 III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL  A     ALGAL  ASSAY  CONTROL  YIELD
            (UG/L)              (MG/L--DRY  WT)
            28.8                42.«  -  186.3  (  2)
                           LIMITING NUTRIENT AT SAMPLING  TIME

                           ( S/ 5/75) N        ( 8/26/75)  N
                     SUMMARY  OF  PHYTOPLANKTON  DATA
              5/ 5/75
   GENERA
   CHROOMONAS
   CRYPTOMONAS
   SCHROEDERIA
   CYSTS

   OTHER

   TOTAL
                   8/26/75
COUNT   GENERA
 1148   APHANIZOMF.NON
  836   GOMPHOSPHAERIA
  313   ANACYSTIS(MICROCYSTIS)
   52   PHORMIDIUM

    0   OTHER

 2349   TOTAL
                                  10/10/75
               COUNT   GENERA
                3265   APHANIZOMENON
                  96   MELOSIRA
                  96   ANACYSTIS(MICROCYSTIS)
                  48   NITZSCHIA
                       CHROOMONAS
                    0   OTHER

                3505   TOTAL
                                                                                              (10/10/75) N
          COUNT
           1012
            156
             78
             78
             78
              0

           1402
                              cn
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A.  INPUT
     PHOSPHORUS
     NITHOGFN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
            POINT SOURCE
            INDUSTRIAL (KG/YR)
                        OUTLET(S)
                        (KG/YR)
             PERCENT
            RETENTION
             00000
             00000
                 POINT SOURCE
                SEPTIC TANKS  (KG/YR)
                  oooooooooo
                  oooooooeoo
NON-POINT SOURCE
      (KG/YR)

  oooooooooo
TOTAL LOADING
      (KG/YR)
       LAKE SURFACE AREA LOADING RATE
                  (G/SO M/YR)
               0000000000
               0000000000
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNCAGED STREAMS
    STREAM NAME

    SPEER CANAL
    O'BRIAN CANAL
    DENVER-HUDSON CANAL
    UNNAMED DITCH  (CD
    UNNAMED STREAM  (01)
  MEAN TOTAL P
     (MG/L)
     1.664
     1.960
     2.441
     0.270
MEAN TOTAL N
   (MG/L>
   6.565
   7.701
   6.851
   1.855
   5.861

-------
NAME       - BLUE MESA HESEHVOIR
COUNTY     - GUNNISON
STORET NO. - 0803             WORKING PAPER NO.

I. MORPHOMETRY
           COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN COLORADO

                   (MESOTROPHIC)

                              767, NTIS ACCESSION NO. PB-271 658/AB
                 LAKE TYPE
                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
             8873.30
       SURFACE AREA
         (SQ KM)
         36.62
          MEAN DEPTH
           (METERS)
            31.1
 TOTAL INFLOW
    (CMS)
  47.647
 RETENTION TIME
     (DAYS)
     325.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
           91.                149.
                         MEAN SECCHI DISC
                              (METERS)
                                2.6
                           MEDIAN
                        TOTAL PIMG/L)
                           0.019
                              MEDIAN
                           ORTHO PCMG/L)
                              0.005
                        MEDIAN
                     INORG  NCMG/L)
                        0.040
                       MEDIAN
                    TOTAL NIMG/L)
                       0.320
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            6.8               oooooooima
                                    LIMITING NUTRIENT AT SAMPLING TIME

                                    (  8/36/75)  N       ( 9/29/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              8/26/75
   GENERA                   COUNT
   APHANIZOMENON             1324
   CHROOMONAS                 461
   CHYPTOMONAS                230
   FRAGILARIA                 115
   ANACYSTIS(MICROCYSTIS)     115
   OTHER                      231

   TOTAL                     2476
                                               9/29/75
                 GENERA
                 APHANIZOMENON
                 CHROOMONAS
                 FRAGILARIA
                 CRYPTOMONAS
                 SCHROEDERIA
                 OTHER

                 TOTAL
                     COUNT
                      4391
                       187
                        93
                        93
                        47
                         0

                      4811
                                                                                 05
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    6. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
        3160.
       11655.

     OUTLET(S)
     (KG/YR)
     30730.
    817720.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
 PERCENT
RETENTION
   69.
   32.
                       POINT SOURCE
                      SEPTIC TANKS  (KG/YR)
                               10.
                              355.
                               NON-POINT  SOURCE
                                      (KG/YR)
                                      94390.
                                    1187820.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              2.66
              32.8
                             TOTAL LOADING
                                   (KG/YR)
                                   97560.
                                 1199830.
V. NON-HOINT-SOU^CE NUTRIENT EXPORT
    STREAM NAME

    GUNNISON RIVER
    LAKE FORK GUNNISON RIVER
    CEBOLLA CREEK
    WILLOW CREEK
    SOAP CREEK
           MEAN FLOW
             (CMS)
             24.780
              7.430
              3. 130
              0.007
              1.950
   DRAINAGE AREA
      (SO KM)
      5524.5
       955.7
       955.7
       186.5
       181.3
       MEAN TOTAL P
          (MG/L)
           0.071
           0.068
           0.075
           0.223
           0.064
MEAN TOTAL N
   (MG/L)
    1.115
    0.723
    0.488
    1.493
    0.379
                                                                                             TOTAL P EXPORT   TOTAL  N  EXPORT
(KG/SO KM/YR)
      9.
     15.
      8.
     43.
     24.
(KG/SO KM/YR)
     143.
     172.
      49.
     380.
     144.
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME

    CEBOLLA CREEK  (C2>
    STEU8EN CREEK
    EAST ELK CREEK
    RED CREEK
           MFAN TOTAL H
               (MG/L)
               0.115
               0.067
               0.187
               0.130
      MEAN TOTAL N
          (MG/L)
          0.907
          0.893
          0.736
          1.005

-------
                              COMPENDIUM OF NATIONAL  EUTROPHICATION  SURVEY  LAKES  IN COLORADO
NAME
COUNTY
- CHERRY CREEK LAKE
- ARAPAHOE
STORET NO. - 0804

I. MOrtPHOMETRY
               (EUTROPHIC)

      WORKING PAPER NO.  768. NTIS ACCESSION NO. PB-271 473/AB
                 LAKE TYPE

                 IMPOUNDMENT
                   DRAINAGE AREA
                       (SQ KM)
                       997.10
                       SURFACE AREA
                          (SQ KM)
                          3.24
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
          177.                422.
                                 MEAN SECCHI DISC
                                      (METERS)
                                         0.8
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
            (UG/L)              (MG/L—DRY WT)
            23.3                      3.2
MEAN DEPTH
 (METERS)
   5.2
                                     TOTAL  INFLOW
                                         (CMS)
                                        0.208
                                           MEDIAN
                                        TOTAL  PIMG/L)
                                           0.054
RETENTION TIME
    (YEARS)
      3.6
                    MEDIAN
                 ORTHO P(MG/L)
                    0.007
                                                            MEDIAN
                                                         INOR6 NIMG/L)
                                                            0.040
                      MEDIAN
                   TOTAL NIMG/L)
                      0.770
                                            LIMITING NUTRIENT AT SAMPLING  TIME

                                            ( 5/  7/75) N        ( 8/22/75)  N
                                                                                              (10/ 9/75)  N
                    SUMMARY OF PHYTOPLANKTON  DATA
              5/ 7/75
   GENERA
   CHROOMONAS
   CRYPTOMONAS
   STEPHANODISCUS
   NAVICULA
   ANKISTRODESMUS
   OTHER

   TOTAL
                                    8/22/75
                 COUNT   GENERA
                   841   FRAGILARIA
                   342   DIATOMA
                   156   NAVICULA
                    31   STEPHANODISCUS
                    31   CRYPTOMONAS
                   280   OTHER

                  1681   TOTAL
                                                        10/ 9/75
                                     COUNT    GENERA
                                       920    TRACHELOMONAS
                                       920    CHYPTOMONAS
                                       307    ANKISTRODESMUS
                                       184    STEPHANODISCUS
                                       184    MELOSIRA
                                       367    OTHER

                                      2882    TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
                               COUNT
                                 373
                                 248
                                 124
                                  41
                                  41
                                  84

                                 911
                                                                                              >£)»
                                                                                              •si
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
OUTLET (S)
(KG/YR)
  745.
 6870.
POINT SOURCE
INDUSTRIAL (KG/YR)
                                                    POINT SOURCE
                                                   SEPTIC TANKS  (KG/YP)
                                                             5.
                                                           245.
                              PERCENT     LAKE SURFACE AREA LOADING RATE
                             RETENTION               
-------
NAME
COUNTY
STORE! NO. - 0806
- DILLON RESERVOIR
- SUMMIT
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN COLORADO

        (OLI60TROPHIC)

WORKING PaPER NO.  769. NTIS ACCESSION NO. P8-278 484/AB
I. MORPMOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                   DRAINAGE AREA
                      (SO KM)
                      867.60
                 SURFACE AREA
                   (SO KM)
                   12.76
          MEAN DEPTH
           (METERS)
            24.6
TOTAL INFLOW
   (CMS)
  9.610
RETENTION TIME
    (YEARS)
      1.3
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITYIMG/L)    CONDUCT IVITY(UMHOS)
           4?.                 86.
                                 MEAN SECCHI DISC
                                      (METERS)
                                        8.1
                                     MEDIAN
                                  TOTAL PIMG/L)
                                     0.009
                              MEDIAN
                           ORTHO P(MG/L)
                              0.002
                       MEDIAN
                    INORG NIMG/L)
                       0.040
                       MEDIAN
                    TOTAL NIMG/L)
                       0.220
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            3.2               >«oB««»e«o
                                            LIMITING NUTRIENT AT SAMPLING  TIME
                    SUMMARY OF PHYTOPLANKTON DATA
              8/25/75
   GENERA
   FLAGELLATES
   CRYPTOMONAS
   ASTERIONELLA
   FRAGILARIA
   DINOBRYON
   OTHER

   TOTAL
                                   10/ 9/75
                 COUNT   GENERA
                  1537   FRAGILARIA
                   713   ASTERIONELLA
                   604   FLAGELLATES
                   384   CRYPTOMONAS
                   384   CYSTS
                     0   OTHER

                  3622   TOTAL
                                            (  8/25/75)  f
                               COUNT
                                3297
                                i486
                                 650
                                 279
                                 232
                                  93

                                6037
                                                               (10/ 9/75) P
                                                                                  00
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
        POINT SOURCE
        MUNICIPAL  (KG/YR)
                2365.
               15635.

             OUTLET(S)
             (KG/YR)
              2225.
            174050.
                                        POINT SOURCE
                                        INDUSTRIAL (KG/YR)
           PERCENT
          RETENTION
             71.
             16.
                                 POINT SOURCE
                                SEPTIC TANKS  (KG/YR)
                                         10.
                                        315.
                               NON-POINT  SOURCE
                                      (KG/YR)
                                       5395.
                                     191310.
                            TOTAL LOADING
                                  (KG/YR)
                                   7770.
                                 207260.
LAKE SURFACE AREA LOADING RATE
          (G/SO M/YR)
              0.61
              16.2
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                (CMS)
    BLUE RIVER                   2.440
    TENMILE CREEK                2.630
    MINERS CREEK                 0.270
    SNAKE RIVER                  2.080
                                DRAINAGE AREA
                                   (SO KM)
                                    313.4
                                    240.4
                                     17.3
                                    201.U
                              MEAN TOTAL P
                                 (MG/L)
                                  0.012
                                  0.022
                                  0.011
                                  0.011
                       MEAN TOTAL N
                           (MG/L)
                           0.444
                           0.850
                           0.527
                           0.385
                TOTAL  P EXPORT
                (KG/SO KH/YR)
                      1.
                     10.
                      5.
                      3.
                 TOTAL N EXPORT
                 (KG/SO KM/YR)
                       85.
                      302.
                      266.
                      121.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)          (MG/L)
    MEADOW CREEK                 0.021           0.714

-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION  SURVEY LAKES  IN  COLORADO

NAME       - GRAND LAKE                (MESOTROPHIC)
COUNTY     - GRAND «•• INCLUDES TRIBS  AND LOADS FOH SHADOW MTN LAKE  (0813)
STORET NO. - 0807             WORKING  PAPER NO.  770. NTIS ACCESSION NO. Pfl-272 233/AB

I. MORPHOMETRY
                 LAKE TYPE    DRAINAGE AREA    SURFACE AREA    MEAN  DEPTH    TOTAL INFLOW     RETENTION TIME
                                  (SO KM)         (SO KM)         (METERS)         (CMS)             (DAYS)
                 NATURAL         479.10           2.05           41.3         13.465              92.0»

II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN          MEAN SECCHI DISC       MEDIAN          MEDIAN           MEDIAN          MEDIAN
    ALKALINITYIMG/L)   CONDUCTIVITY(UMHOS)       (METERS)        TOTAL P(MG/L)   ORTHO P(MG/L)    INORG N(MG/L)    TOTAL N(MG/L)
           19.                 19.                 3.4             0.013           0.003            0.040           0.220

III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY  CONTROL YIELD    LIMITING  NUTRIENT AT SAMPLING TIME
           (UG/L)             (MG/L—DRY WT)
            4.9                 0.2 -   0.4 ( 2)        ( 8/26/75) P        (10/10/75) P

                    SUMMARY OF PHYTOPLANKTON DATA
              8/26/75                         10/10/75
   GENERA                   COUNT   GENERA                   COUNT
   ASTERIONELLA               523   SPONDYLOSIUM               339
   ANABAENA                   262   CRYPTOMONAS                136
   CRYPTOMONAS                131   MELOSIRA                   136
   MELOSIRA                    87   ASTERIONELLA               102
                                    ANABAENA                     34
   OTHER                        0   OTHER                        33

   TOTAL                      1003   TOTAL                      780

IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE         POINT SOURCE           POINT SOURCE          NON-POINT SOURCE     TOTAL  LOADING
                   MUNICIPAL  (KG/YR)    INDUSTRIAL (KG/YR)    SEPTIC TANKS (KG/YR)         (KG/YR)              (KG/Yrt)
     PHOSPHORUS             920.         «««««•«««•                     45.                  9455.               10420.
     NITROGEN              3695.         ••«««««••«                   1715.                397275.              402685.
    8. OUTPUT
                        OUTLET(si        PERCENT     LAKE SURFACE AREA LOADING RATE
                        (KG/YR)         RETENTION              (G/SQ M/YR)
     PHOSPHORUS          5980.             43.                     1.38*
     NITROGEN          199480.             50.                    '. 53.5«

V. NON-POINT-SOURCE NUTRIENT  EXPORT
    STREAM NAME               MEAN FLOW    DRAINAGE AREA    MEAN TOTAL P    MEAN  TOTAL  N    TOTAL  P EXPORT   TOTAL N EXPORT
                                (CMS)         (SO KM)          (MG/L)           (MG/L)        (KG/SO KM/YR)     (KG/SCI KM/YR)
    NORTH INLET                   1.990         118.9             0.020          0.673             11.               355.
    ECHO CREEK                    1.441          70.4             0.011          0.461              7.               298.
    COLORADO RIVER               2.500         264.2             0.030          1.056              V.               315.
    GRANBY PUMP CANAL            7.310    »««««««««»             0.022          1.039      
-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN COLORADO
NAME       - SHADOW MOUNTAIN LAKE     (MESOTROPHIC)
COUNTY     - GRAND ««« SEE GRAND LAKE (0807)  FOR LOADING VALUES
STORET NO. - 0813             WORKING PAPER NO.  770, NTIS ACCESSION NO. PB-272 233/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                          DRAINAGE AREA
                             (SO KM)
                             471.60
       SURFACE AREA
         (SO KM)
          5.46
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITYIMG/L)   CONDUCT IVITY(UMHOS)
           37.                 33.
                                        MEAN SECCHI DISC
                                             (METERS)
                                               1.8
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L — DRY WT)
            5.7          .     «*««*«»o»«
MEAN DEPTH
 (METERS)
   3.8
TOTAL INFLOW
   (CMS)
 13.465
RETENTION TIME
    (DAYS)
     92.0 *
                           MEDIAN
                        TOTAL PIMG/L)
                           0.020
                    MEDIAN
                 ORTHO P(MG/L)
                    0.003
                                                   LIMITING NUTRIENT AT SAMPLING TIME

                                                   (  8/36/75)  P AND N (10/10/75) P AND  N
                       MEDIAN
                    INORG N(HG/L)
                       0.040
                       MEDIAN
                    TOTAL N(MG/L)
                       0.300
                    SUMMARY OF PHYTOPLANKTON DATA
              8/26/75
   GENERA                   COUNT
   APHANIZOMFNON              630
   PHORMIOIUM                 533
   ANACYSTIS(MICROCYSTIS)     388
   CHftOOMONAS                 291
   NITZSCHIA                  242
   OTHER                      486

   TOTAL                     2570
                                          10/10/75
                                GENERA
                                MELOSIRA
                                ASTERIONELLA
                                CRYPTOMONAS
                                CHROOMONAS
                                PENMATE DIATOMS
                                OTHER

                                TOTAL
IV.
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
                                    POINT SOURCE
                                    INDUSTRIAL (KG/YR)
                        OUTLET(S)
                        (KG/YR)
 PERCENT
RETENTION
 ooooo
                     COUNT
                       706
                       Z46
                       346
                       184
                       184
                       314

                      1780
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                        nooooooeoe
                                                                       cn
                                                                       c
                     NON-POINT  SOURCE
                            (KG/YR)
                        oooeoooooe
                        «»*««»«»«»
                            TOTAL LOADING
                                  (KG/YR)
                              ««**»**««*
                                                 LAKE SURFACE AREA LOADING RATE
                                                           (G/SQ M/YR)
                                                         oooooooooe
    » COMBINFO GRAND-SHADOW MOUNTAIN LAKES.

-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN COLORADO

NAME       - GREEN MOUNTAIN RESERVOIR  (OLIGOTPOPHIC)
COUNTY     - SUMMIT
STORET NO. - 0808             WORKING  PAPER NO.  771, NTIS ACCESSION NO. P8-272 235/AB

I. MORPHOMETRY
                 LAKE TYPE    DRAINAGE AREA    SURFACE AREA    MEAN DEPTH    TOTAL INFLOW     RETENTION  TIME
                                  (SO KM)         
           54.                107.                 2.R             0.010           0.002            0.040            0.230

III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY  CONTROL YIELD    LIMITING  NUTRIENT AT SAMPLING TIME
           (UG/L)             (MG/L—DRY WT)
            5.8                      0.1                ( 8/25/75) P        (10/ 9/75) P

                    SUMMARY OF PHYTOPLANKTON DATA
              8/25/75                         10/ 9/75
   GENERA                   COUNT   GENERA                   COUNT
   FRAGILARIA                3470   CYCLOTELLA                 635
   CYCLOTELLA                 132   FRAGILARIA                 212
   ASTEHIONELLA               132   CRYPTOMONAS                  60
   CRYPTOMONAS                 88
   OTHER                        0   OTHER                        0

   TOTAL                     3822   TOTAL                      907                                                                   Cfl
                                                                                                                                     h^
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE         POINT SOURCE           POINT SOURCE         NON-POINT SOURCE    TOTAL  LOADING
                   MUNICIPAL (KG/YR)    INDUSTRIAL (KG/YR)     SEPTIC TANKS (KG/YR)         (KG/YR)              (KG/YH)
     PHOSPHORUS             895.         «»»»«»*»»«                    10.                 5680.                6585.
     NITROGFN             22350.         o««»«*«»»»                   355.               152755.              175460.
    B. OUTPUT
                        OUTLET is)         PERCENT     LAKE SURFACE AREA LOADING RATE
                        (KG/YR)          RETENTION              (G/SQ M/YR)
     PHOSPHORUS          6390.              3.                     0.77
     NITROGEN          168530.              4.                     20.4

V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW    DRAINAGE AREA    MEAN TOTAL P    MEAN  TOTAL N    TOTAL P EXPORT    TOTAL  N  EXPORT
                                (CMS)          (SO KM)          (MG/L)          (MG/L)       (KG/SO KM/YR)     (KG/SO KM/YR)
    BLUE RIVER                   9.f>40        1323.5             0.016           0.435             3.                78.
    SLACK CREEK                  0.862          47.9             0.014           0.364             8.              223.
    OTTER CREEK                  0.131          21.8             0.075           0.481             16.                94.
    CATARACT CREEK               0.537          36.3             0.011           0.317             6.              154.

-------
NAME       - HOLRROOK RESERVOIR
COUNTY     - OTERO
STORET NO. - 0809             WORKING PAPER NO.

I. MORPHOMETRY
  COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN COLORADO

          (EUTROPHIC)

                     772, NTIS ACCESSION NO. PB-271 554/AB
                 LAKE TYPE

                 IMPOUNDMENT
  DRAINAGE AREA
     (SO KM)
SURFACE AREA
  (SQ KM)
   3.72
MEAN DEPTH    TOTAL  INFLOW
 (METERS)         (CMS)
   2.5     »«»>»«««««
                                                                                             RETENTION TIME
                                                                                                  (YEARS)
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
           85.               1812.
                MEAN SECCHI DISC
                     (METERS)
                       0.3
                    MEDIAN
                 TOTAL PIMG/L)
                    0.329
                    MEDIAN
                 ORTHO P(MG/L>
                    0.028
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
          111.9                     63.3
                           LIMITING NUTRIENT AT SAMPLING TIME
                           (  5/ 6/75) N
                                              ( 8/22/75) P
                                                                                                    MEDIAN
                                                                                                 INORG  N(MG/L)
                                                                                                    0.070
                                                                  (10/  7/75)  N
   MEDIAN
TOTAL N(M6/L)
   3.020
                    SUMMARY OF PHYTOPLANKTON DATA
              5/ 6/75
   GENERA
   OSCILLATORIA
   SYNEDRA
   FLAGELLATES
   STEPHANODISCUS
   CRYPTOMONAS
   OTHER

   TOTAL
                   8/22/75
COUNT   GENERA
36005   ANABAENOPSIS
16440   OSCILLATORIA
 6083   ANABAENA
 2137   CRYPTOMONAS
 1973   SCENEDESMUS
 4185   OTHER

66823   TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A.  INPUT
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
     PHOSPHORUS       «»»«»«««««
     NITROGEN         «»««««««««
    H.  OUTPUT
                        OUTLET(S)
                        (KG/YR)
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
                                 10/  7/75
              COUNT   GENERA
              34071   ANABAENOPSIS
              11005   OSCILLATORIA
               2111   NITZSCHIA
               2111   CRYPTOMONAS
               1508   STEPHANODISCUS
               1808   OTHER

              52614   TOTAL
                                COUNT
                                31245
                                13077
                                 7487
                                 2595
                                  799
                                 1099

                                56302
                                   POINT SOURCE
                                  SEPTIC TANKS  (KG/YR)
                                      NON-POINT SOURCE
                                            (KG/YR)
     PHOSPHORUS
             PERCENT
            RETENTION
             oeeee
                                                     LAKE SURFACE  AREA  LOADING RATE
                                                                (G/SQ  M/YR)
                                                                                                                                      cn
                                                                                                                                      ro
                                          TOTAL LOADING
                                                 (KG/YR)
                                            »«*«**•«•«
                                            ««*«*<>*»*»
VI. MEAN NUTRIENT CONCENTRATIONS  IN  UNGAGED  STREAMS
    STREAM NAME               MEAN TOTAL P     MEAN TOTAL  N
                                  (MG/L)           (MG/L)
    OUTLET DITCH  (AD             0.210            1.955
    DITCH  (A2)                    0.440            3.630

-------
NAME       - LAKE MEREDITH
COUNTY     - CROWLEY
STORET NO. - 0810
  COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN COLORADO

          (EUTROPHIC)

  WORKING PAPER NO.   773. NTIS ACCESSION NO. PB-271 478/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
  DRAINAGE AREA
     (SO KM)
 SURFACE AREA
   (SO KM)
   13.03
   MEAN  DEPTH    TOTAL  INFLOW
    (METERS)         (CMS)
      2,5     »••••«•»•«
                        RETENTION TIME
                            (YEARS)
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)    CONDUCTIVITY(UMHOS)
           100.                7055.
                MEAN SECCHI DISC
                     (METERS)
                       0.3
                     MEDIAN
                  TOTAL PIMG/L)
                     0.397
                       MEDIAN
                    OKTHO P(MG/L)
                       0.098
                              MEDIAN
                           INORG N(MG/L>
                              0.110
   MEDIAN
TOTAL NIMG/L)
   4.630
 III. BIOLOGICAL  CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL  A     ALGAL  ASSAY  CONTROL  YIELD
            (UG/L)              (MG/L—DRY  HT)
           164.7                      40.2
                           LIMITING NUTRIENT AT SAMPLING TIME
                           ( f 6/75) N
                     SUMMARY  OF  PHYTOPLANKTON  DATA
              5/  6/75
   GENERA
   OSCILLATORIA
   CYLINDROCYSTIS
   FLAGELLATES
   APHANOCAPSA
   EUGLENA
   OTHER

   TOTAL
                   8/22/75
COUNT   GENERA
14778   MERISMOPEOIA
 6584   OSCILLATORIA
 3438   ANA8AENA
 1756   ANABAENOPSIS
 1171   ANACYSTIS(MICROCYSTIS)
 4609   OTHER

32336   TOTAL
 COUNT
 85437
 63972
 11477
  3400
  1913
  7013

173212
                                              ( 8/22/75) N
          10/ 7/75
GENERA
OSCILLATORIA
ANABAENOPSIS
COELOSPHAERIUM
CYLINDROCYSTIS
APHANOTHECE
OTHER

TOTAL
                                                                  (10/ 7/75) N
                                                COUNT
                                               932405
                                                13091
                                                 2036
                                                 1455
                                                 1164
                                                 3782

                                               953933
 IV. NUTRIENT LOADING  CHARACTERISTICS(LAKE)
    A.  INPUT
                    POINT  SOURCE
                    MUNICIPAL  (KG/YR)
            POINT SOURCE
            INDUSTRIAL (KG/YR)
                 POINT SOURCE
                SEPTIC TANKS (KG/YR)
                        NON-POINT SOURCE
                              (KG/YR)
      PHOSPHORUS
      NITROGEN
     B.  OUTPUT
      PHOSPHORUS
      NITROGEN
                         OUTLET(S)
                         (KG/YR)
                        noooooo
             PERCENT
            RETENTION
                                    oooooooeoe
                                                          ooooeeoooa
                                   TOTAL  LOADING
                                          (KG/YR)
                                      *«*•*•*•••
                                      *«•*•»•**«
       LAKE SURFACE AREA LOADING RATE
                  (G/SO M/YR)
 vi.  MEAN  NUTRIENT  CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM  NAME

    LAKE MEREDITH  OUTLET
    LAKE MEREDITH  INLET
    UNNAMED DITCH  (HI)
    UNNAMED DITCH  (Cl)
    UNNAMED DITCH  (Dl)
    BOB CREEK
  MEAN TOTAL P
     (MG/L)
     0.120
     0.071
     0.220
     0.153
     0.070
     0.053
MEAN TOTAL N
   (MG/L)
   5.405
   4.174
   3.267
   3.717
   7.627
   4.912

-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN COLORADO
NAME
COUNTY
- MILTON RESERVOIR
- WELD
STORET NO. - 0811

I. MORPHOMETRY
        (EUTROPHIC)

WORKING PAPER NO.  7?*, NTIS ACCESSION NO. PB-271 469/AB
                 LAKE TYPE

                 IMPOUNDMENT
                   DRAINAGE AREA
                      (SO KM)
                 SURFACE AREA    MEAN DEPTH    TOTAL INFLOW
                   (SO KM)         (METERS)        (CMS)
                    8.41            7.3     «••••«•••*
                                                                                             RETENTION TIME
                                                                                                 (YEARS)
                                                                                                •*•*««
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
          324.               1078.
                                 MEAN SECCHI DISC
                                      (METERS)
                                        1.8
                                     MEDIAN
                                  TOTAL P(MG/L)
                                     0.846
                                                                                   MEDIAN
                                                                                ORTHO P(MG/L)
                                                                                   0.808
   MEDIAN
INORG N(MG/L)
   2.280
   MEDIAN
TOTAL NCMG/U
   3.530
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            5.9                      7.2
                                            LIMITING NUTRIENT AT SAMPLING  TIME
                                            ( 5/ 6/75) N
                                                                ( 8/26/75) N
                                                                                   (10/10/75)  N
              5/ 6/75
                    SUMMARY OF PHYTOPLANKTON DATA
   GENERA
   PEDIASTRUM
   CRYPTOMONAS
   CHROOMONAS
   SCHROEDERIA
   SCENEDESMUS
   OTHER

   TOTAL
                                    8/26/75
                 COUNT   GENERA
                   102   MELOSIRA
                   102   FRAGILARIA
                   102   CHROOMONAS
                    51   ASTERIONELLA
                    51   ANABAENA
                     0   OTHER

                   408   TOTAL
                                                  10/10/75
                               COUNT   GENERA
                                 590   CHROOMONAS
                                 553   NITZSCHIA
                                 406   CYCLOTELLA
                                 369   PENNATE DIATOMS
                                 332   APHANIZOMENON
                                 257   OTHER

                                2507   TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A.  INPUT
                   POINT SOURCE         POINT  SOURCE
                   MUNICIPAL (KG/YR)     INDUSTRIAL (KG/YR)
     PHOSPHORUS        ««»•»««»»««         o-»oo««»«««
     NITROGEN         ««««o»»«»«         «»««««««««
                                                                                              COUNT
                                                                                                272
                                                                                                136
                                                                                                 91
                                                                                                 91
                                                                                                 45
                                                                                                 89

                                                                                                724
                                     cn
                                                               POINT SOURCE
                                                              SEPTIC TANKS  (KG/YR)
                                                                          NON-POINT SOURCE
                                                                                (KG/YR)
                                                                           TOTAL LOADING
                                                                                 (KG/YR)
                                                                             *«•*»«*»*«
                                                                             ««•*•••*•*
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                        OUTLET(S)
                         (KG/YR)
                              PERCENT
                             RETENTION
                       LAKE SURFACE AREA LOADING RATE
                                  (G/SQ M/YR)
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME

    GILMORE DITCH
    BEEBE CANAL
    PLATTE VALLEY CANAL
                   MEAN TOTAL P
                       (MG/L)
                       0.980
                       0.501
                       1.357
                MEAN TOTAL N
                    (MG/L)
                   3.286
                   3.730
                   6.067

-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN COLORADO
NAME       - NAV4JO RESERVOIR          (MESO-EUTROPHIC>
COUNTY     - ARCHULETA. CO; SAN JUAN,  RIO ARRIBA, NM
STORET NO. - Ofll2             WORKING  PAPER NO.  775, NTIS ACCESSION  NO. PB-278 545/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
             8443.40
       SURFACE AREA
         (SO KM)
         63.25
          MEAN DEPTH
           (METERS)
            33.3
TOTAL INFLOW
   (CMS)
 49.460
 RETENTION  TIME
     (YEARS)
       1.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
           71.                166.
                         MEAN SECCHI DISC
                              (METERS)
                                0.5
                           MEDIAN
                        TOTAL P(MG/L)
                           0.036
                              MEDIAN
                           ORTHO PIMG/L)
                              0.013
                      MEDIAN
                   INORG NIMG/L)
                      0.050
                       MEDIAN
                    TOTAL NIMG/L)
                       0.365
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A     ALGAL  ASSAY CONTROL  YIELD
            (UG/L)              (MG/L—DRY  WT)
            2.2                o«oooooooo

                    SUMMARY  OF PHYTOPLANKTON DATA
              8/18/75                           9/30/75
   GENERA                    COUNT   GENERA
   CRYPTOMONAS                 253   CHROOMONAS
   APHANIZOMENON               63   CHYPTOMONAS
   OTHER                         0   OTHER
   TOTAL
                               316    TOTAL
                                    LIMITING NUTRIENT AT SAMPLING TIME

                                    ( 4/30/75) P AND N  ( 8/18/75) P AND N  ( 9/30/75) N
                                          COUNT
                                            605
                                            287
                                              0

                                            892
 IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGF.N
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
                                                                                                                  cn
                                                                                                                  en
POINT SOURCE
MUNICIPAL (KG/YR)
        2510.
        7205.

     OUTLET(S)
     (KG/YR)
     27970.
   140314U.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
                                         0000000000
 PERCENT
RETENTION
   82.
   21.
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               10.
                              360.
                               NON-POINT SOURCE
                                     (KG/YR)
                                    155570.
                                   1769425.
                           TOTAL LOADING
                                  (KG/YR)
                                158090.
                                1776990.
LAKE SURFACE AREA LOADING RATE
          (G/SU M/YR)
              2.50
              28.1
V. NON-POINT-SOURCE  NUTRIENT  EXPORT
    STREAM NAME

    SAN JUAN RIVER
    PIEDRA RIVER
    SAMBHITO CREEK
    UNNAMED STREAM  (01)
    LOS PINOS RIVER
    UNNAMED STREAM  (Fl)
    UNNAMED STREAM  (HI)
    SPRING CREEK
                               MEAN  FLOW     DRAINAGE  AREA     MEAN TOTAL P    MEAN  TOTAL N    TOTAL P EXPORT   TOTAL N EXPORT
             (CMS)
             17.440
             14.720
              0.064
              0.010
              5.620
              0.052
              0.040
              0.336
      (SO KM)
      3185.7
      1629.1
        46.6
        20.7
      1320.9
        18.6
        17.4
       150.2
          (MG/L)
           0.102
           0.076
           0.121
           0.159
           0.070
           0.140
           0.015
           0.324
  (MG/L)
   1.137
   0.972
   1.488
   1.579
   0.973
   1.333
   0.8J1
   1.880
(KG/SO  KM/YR)
     17.
     35.
     6.
     18.
     7.
     31.
     1.
     14.
(KG/SO KM/YR)
     203.
     294.
      65.
     273.
     127.
     115.
      70.
     116.

-------
                              COMPENDIUM OF NATIONAL EUTNOPHICATION SURVEY LAKES  IN  IDAHO

NAME       - AMERICAN FALLS RESERVOIR (EUTROPHIC)
COUNTY     - BANNOCK, BINGHAM, POWER
STORET NO. - 1601             WORKING PAPER NO.  776, NTIS ACCESSION NO. PB-272 237/AB
I. MOHPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
            35324.00
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
          150.                324.
       SURFACE AREA
         (SO KM)
        277.03
                         MEAN SECCHI  DISC
                              (METERS)
                                0.9
   MEAN DEPTH
    (METERS)
      9.2
 TOTAL INFLOW
    (CMS)
 182.140
                           MEDIAN
                        TOTAL P(MG/L)
                           0.105
 RETENTION TIME
     (DAYS)
     109.0
                       MEDIAN
                    ORTHO P(MG/L)
                       0.035
                       MEDIAN
                     INOR6 N(MG/L>
                       0.080
                       MEDIAN
                    TOTAL  N(MG/L)
                       0.575
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            15.4                 0.2 -  16.0  ( 2)
                                    LIMITING NUTRIENT AT SAMPLING TIME

                                    (  5/15/75) P AND N ( 8/ 5/75) N
                                                      (  9/18/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              5/15/75
   GENERA
   CYCLOTELLA
   ASTERIONELLA
   CHROOMONAS
   DIATOMA
   NITZSCHIA
   OTHER

   TOTAL
                            8/ 5/75
         COUNT   GENERA
          4856   APH4NIZOMENON
          2147   FRAGILARIA
          1227   MELOSIRA
           562   NAVICULA
           460   CYMHELLA
          1279   OTHER

         10531   TOTAL
                                         9/18/75
                     COUNT   GENERA
                      3684   APHANIZOMENON
                      1505   CHROOMONAS
                       415   CRYPTOMONAS
                       208   FRAGILARIA
                       156   CYCLOTELLA
                       207   OTHER

                      6175   TOTAL
                                   COUNT
                                     745
                                     348
                                     248
                                     149
                                      99
                                     100

                                    1689
                                                         cn
                                                         »»o»
           55.
        NON-POINT SOURCE
               (KG/YR)
             443790.
            7465330.
            TOTAL LOADING
                   (KG/YR)
                 610015.
                6173700.
 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (G/SQ M/YR)
    5.                     2.20
 LOSS                     29.5
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME

    SNAKE RIVER
    UNNAMED STREAM
    OANIELSON CREEK
    PORTNEUF RIVER
    BANNOCK CREEK
    SPRING CREEK
           MEAN FLOW
             (CMS)
            144.900
              1.210
              1.700
             15.800
              1.090
             13.580
   DRAINAGE AREA
      (SO KM)
     29292.9
       271.9
       253.3
      3367.0
      1020.5
        69.9
MEAN TOTAL P
   (MG/L)
    0.075
    0.364
    0.042
    0.503
    0.381
    0.042
MEAN TOTAL N
   (MG/L)
    1.184
    2.312
    1.660
    3.115
    1.816
    1.333
TOTAL P EXPORT
(KG/SO KM/YR)
     11.
     19.
      9.
     26.
     13.
    130.
TOTAL N EXPORT
(KG/SO KM/YR)
     185.
     134.
     356.
     252.
      61.
    8172.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)           (MG/L)
    UNNAMED STREAM Cl            0.209            1.715

-------
NAME
COUNTY
       - CASCADE RESERVOIR
       - VALLEY
STORET NO. - 1602

I. MORPMOMETRY
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN  IDAHO

        (EUTROPHIC)

WORKING PAPER NO.  777, NTIS ACCESSION NO. PB-272 231/AB
                 LAKE TYPE
                  IMPOUNDMENT
                          DRAINAGE  AREA
                              (SO KM)
                             1621.30
                 SURFACE AREA
                   (SO KM)
                  107.24
          MEAN DEPTH
            (METERS)
             8.1
TOTAL INFLOW
   (CMS)
 27.260
RETENTION TIME
    (DAYS)
    339.0
II. PHYSICAL AND CHEMICAL  CHARACTERISTICS
         MEDIAN              MEDIAN
    ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
           18.                  32.
                                         MEAN  SECCHI  DISC
                                              (METERS)
                                                2.2
                                     MEDIAN
                                  TOTAL P(MG/L)
                                     0.032
                              MEDIAN
                           ORTHO P(MG/L)
                              0.009
                      MEDIAN
                   INORG N(MG/L)
                      0.060
                      MEDIAN
                   TOTAL N(MG/L)
                      0.320
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
           (UG/L)              (MG/L—DRY WT)
            8.1                  0.6 -   1.2  (  3)
                                                   LIMITING  NUTRIENT  AT  SAMPLING TIME
                                                        ( 6/  4/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              6/ 4/75
   GENERA
   ASTERIONELLA
   DINOBRYON
   SYNEDRA
   CENTRIC DIATOM
   MELOSIHA
   OTHER

   TOTAL
                                           8/  1/75
                        COUNT   GENERA
                         5069   FRAGILARIA
                          870   APHANIZOMENON
                          605   MELOSIRA
                          151   CHROOMONAS
                          151   APHANOTHECE
                          417   OTHER

                         7263   TOTAL
                               COUNT
                                1206
                                 827
                                 276
                                 138
                                 103
                                 277

                                2827
                                                                           (  8/  1/75)  N
                           9/16/75
                GENERA
                APHANIZOMENON
                CRYPTOMONAS
                FRAGILARIA
                CHROOMONAS
                MELOSIRA
                OTHER

                TOTAL
                                                                                          (  9/16/75)  P AND N
                 COUNT
                   979
                   367
                   245
                    82
                    82
                    40

                  1795
                                        cn
                                        •vl
IV. NUTRIENT LOADING CHARACTtRISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                            1520.
                            4600.
                                    POINT SOURCE
                                    INDUSTRIAL  (KG/YR)
 PHOSPHORUS
 NITROGEN
8. OUTPUT
     PHOSPHORUS
     NITROGEN
                    OUTLET(S)
                    (KG/YR)
                    25985.
                   829205.
           oooooooooo

           PERCENT
          RETENTION
             36.
           LOSS
                                 POINT SOURCE
                                SEPTIC TANKS (KG/YR)
                                  oooooooooo
                                         90.
                               NON-POINT SOURCE
                                      (KG/YR)
                                     39025.
                                    516985.
                           TOTAL LOADING
                                 (KG/YH)
                                 40545.
                                521675.
LAKE SURFACE AREA LOADING RATE
          (G/SO M/YR)
              0.38
              4.9
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                (CMS)
    NORTH FORK PAYETTE RIVER    10.190
    GOLD FORK RIVER              5.910
    BOULDER CREEK                0.950
    LAKE FORK CREEK              3.350
                                       ORAINAGE AREA
                                          (SO KM)
                                           440.3
                                           388.5
                                            99.7
                                           198.4
                              MEAN TOTAL
                                 (MG/L)
                                  0.033
                                  0.057
                                  0.076
                                  0.022
                       MEAN TOTAL N
                          (MG/L)
                           0.527
                           0.437
                           0.597
                           0.363
               TOTAL P EXPORT
               (KG/SO KM/YH)
                    20.
                    26.
                    22.
                    31.
                TOTAL N EXPORT
                (KG/SO KM/YH)
                     389.
                     216.
                     205.
                     210.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)           (Mb/L)
    HOCK CREEK                   0.034            0.486
    MUD CREEK                    0.052            0.939

-------
NAME
COUNTY
STORE! NO. - 1603

I. MORPHOMETRY
                   COMPENDIUM OF NATIONAL EUTflOPHICATION SURVEY LAKES IN IDAHO

- COEUR D'ALENE LAKE       (MESOTROPHIC)
- 6ENEWAH. KOOTENAI
                   WORKING PAPER NO.  778. NTIS ACCESSION NO. PB-278 518/AB
                 LAKE TYPE

                 NATURAL
                   DRAINAGE AREA
                      (SO KM)
                     9945.60
      SURFACE AREA
         (SO KM)
        129.50
         MEAN DEPTH
           (METERS)
            2.3
TOTAL  INFLOW
    (CMS)
179.380
RETENTION  TIME
     (YEARS)
      19.0
ii. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MGXL)   CONDUCTIVITY(UWHOS)
           23.                 43.
                                 MEAN SECCHI DISC
                                      (METERS)
                                        3.0
                           MEDIAN
                        TOTAL  PIMG/L)
                           0.017
                              MEDIAN
                           ORTHO P(MG/L)
                              0.005
                       MEDIAN
                    INOR6 N(MG/L)
                       0.040
                       MEDIAN
                    TOTAL N(MG/L)
                       0.220
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            10.4                »««»»«»»««
                                            LIMITING NUTRIENT AT SAMPLING  TIME

                                            ( 4/ 4/75) P AND N  ( 7/22/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              4/ 4/75
    GENERA
    MELOSIRA
    ASTERIONELLA
    SYNEDRA
    FRAGILARIA
    CRYPTOMONAS
    OTHER

    TOTAL
                                    7/22/75
                 COUNT   GENERA
                  9594   MELOSIRA
                   592   APHANI20MENON
                   296   FRAGILARIA
                     85   ANABAENA
                     42   CHROOMONAS
                     42   OTHER

                  10651   TOTAL
                                        9/ 9/75
                     COUNT   GENERA
                       389   APHANIZOMENON
                       272   TABELLARIA
                       272   CRYPTOMONAS
                       233   MELOSIRA
                       117   SYNEDRA
                       233   OTHER

                      1516   TOTAL
                                                      ( 9/ 9/75)  P
                                         COUNT
                                           471
                                           471
                                           118
                                             47
                                             47
                                             95

                                           1249
                                                          cn
                                                          00
 IV.  NUTRIENT  LOADING  CHARACTERISTICS(LAKE)
     A.  INPUT
      PHOSPHORUS
      NITROGEN
     H.  OUTPUT
      PHOSPHORUS
      NITROGEN
         POINT  SOURCE
         MUNICIPAL  (KG/YR)
                13580.
                44875.

              OUTLb'T(S)
              (KG/YR)
             109525.
            4354550.
                                         POINT  SOURCE
                                         INDUSTRIAL  (KG/YR)
 PERCENT
RETENTION
   39.
 LOSS
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                              250.
                             9325.
                               NON-POINT SOURCE
                                      (KG/YR)
                                     165985.
                                   3342530.
                             TOTAL  LOADING
                                   (KG/YR)
                                  179815.
                                 3396730.
LAKE SURFACE AREA LOADING RATE
          (G/SO M/YR)
              1.39
             26.2
 V.  NON-POINT-SOURCE NUTRIENT EXPORT
     STREAM NAME

     WOLF  LODGE CREEK
     COEUR D'ALENE  RIVER
     ST. JOE RIVER
     rtENEWAH CREEK
     PLUMMER CREEK
     LAKE  CREEK
                    MEAN FLOW
                      (CMS)
                       1.480
                      72.370
                      96.110
                       0.710
                       0.310
                       0.660
   ORAINAGE AREA
      (SO KM)
       153.1
      3833.2
      4480.7
       137.0
       112.4
        68.6
 VI.  MEAN  NUTRIENT  CONCENTRATIONS  IN UNGAGED  STREAMS
       MEAN TOTAL P
          (MG/L)
           0.018
           0.049
           0.020
           0.048
           0.054
           0.052
     STREAM  NAME

     FERNAN  LAKE  OUTLET
     ROCKFORD CREEK
     MICA CREEK
                    MEAN  TOTAL  P
                       (MG/L)
                       0.042
                       0.053
                       0.034
      MEAN TOTAL N
         (MG/L)
         0.743
         1.1HO
         0.471
MEAN TOTAL N
   (MG/L)
    0.580
    0.638
    0.447
    0.569
    1.180
    1.842
TOTAL P EXPORT
(KG/SO KM/YR)
      5.
     26.
     13.
      7.
      4.
     14.
TOTAL N EXPORT
(KG/SU KM/YR)
     162.
     389.
     331.
     106.
     109.
     534.

-------
MURPHY CREEK                 0.170           7.690
HOSE CREEK Ml                0.142           3.307
HOSE CREEK Ml                0.241           3.151
SOUTH FORK HOCK CHEEK        0.173           3.384
COUGAR CREEK                 0.070           0.941
COTTONWOOD CREEK             0.492           4.316
SQUAW CREEK                  0.060           1.036
                                                                                                                                  cn
                                                                                                                                  CD

-------
NAME       - DWORSHAK RESERVOIR
COUNTY     - CLEARWATER
STORE! NO. - 1604
                         COMPENDIUM OF NATIONAL EUTROPHICATIUN SURVEY LAKES IN  IDAHO

                                 (OLIGOTROPHIC)

                         WORKING PAPER NO.  779. NTIS ACCESSION NO. P8-272 257/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                         DRAINAGE AREA
                            (SO KM)
                           6319.60
      SURFACE AREA
        (SO KM)
        76.89
  MEAN DEPTH
   (METERS)
    55.5
TOTAL INFLOW
   (CMS)
196.780
RETENTION TIME
    (DAYS)
    305.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(M6/L)   CONDUCTIVITY(UMHOS)
            IB.                 18.
                                       MEAN SECCHI DISC
                                            (METERS)
                                              2.5
                          MEDIAN
                       TOTAL PIMG/L)
                          0.010
                      MEDIAN
                   ORTHO  PIMG/L)
                      0.009
                       MEDIAN
                    INORG N(MG/L)
                       0.080
                       MEDIAN
                    TOTAL NCMG/L)
                       0.260
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            2.4                  0.2 -   0.9  ( 4)
                                                  LIMITING NUTRIENT AT SAMPLING  TIME

                                                  ( 4/ 7/75) P AND N  < 7/23/75)  N
                                                     (  9/11/75) P AND N
                    SUMMARY OF PHYTOPLANKTON DATA
              4/ 7/75
   GENERA
   MELOSIRA
   CHROOMONAS
    CRYPTOMONAS
    OTHER
    TOTAL
                                          7/23/75
                       COUNT   GENF.RA
                        1036   MALLOMONAS
                         192    OOCYSTIS
                          154   ANKISTRODESMUS
                                MELOSIRA

                            0   OTHER

                         1382   TOTAL
                                        9/11/75
                    COUNT   GENERA                    COUNT
                      286   COELOSPHAERIUM              579
                       239   MELOSIRA                    241
                        95   APHANIZOMENON                96
                        48   ANKISTRODESMUS               48
                             ASTERIONELLA                 48
                         0   OTHER                        97

                       668   TOTAL                      1109
 IV.
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
      PHOSPHORUS
      NITROGEN
     B. OUTPUT
      PHOSPHORUS
      NITROGEN
               POINT SOURCE
               MUNICIPAL (KG/YR)
                        570.
                       iroo.

                    OUTLET(S)
                    (KG/YR)
                    84025.
                  1892860.
                                         POINT SOURCE
                                         INDUSTRIAL (KG/YR)
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                        oooooooooo
 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (G/SQ M/YR)
   27.                     1.50
   42.                     42.2
                        NON-POINT  SOURCE
                               (KG/YR)    ,
                              114745.
                            3246250.
                             TOTAL LOADING
                                   (KG/YR)
                                  115315.
                                 3247950.
 V. NON-POINT-SOURCE NUTRIENT EXPORT
     STREAM NAME

     N FORK CLEARWATER WIVER
     ELK CREEK
     REEDS CREEK
     BREAKFAST CREEK
     LITTLE N FK CLEARWATER R
                          MEAN FLOW
                            (CMS)
                           106.920
                             7.300
                             4.900
                            11.000
                            23.000
   DRAINAGE AREA
      (SO KM)
      3522.4
       2-40.4
       161.6
       334.1
       678.6
MEAN TOTAL P    MEAN TOTAL N     TOTAL  P EXPORT   TOTAL N EXPORT
   (MG/L)           (MG/L)        (KG/SO KM/YR)    (KG/SQ KM/YR)
    0.019           0.590             17.              53*.
    0.031           0.234             27.              231.
    0.036           0.303             33.              262.
    0.017           0.417             17.              569.
    0.018           0.421             18.              462.
 VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
     STREAM NAME

     CRANBERRY CREEK
     SWAMP CREEK
     WEITAS CREEK
     ISABELLA CREEK
                          MEAN TOTAL P
                             (MG/L)
                             0.031
                             0.029
                             0.033
                             0.013
      MEAN TOTAL N
         (Mfa/L)
         0.643
         0.532
         0.393
         0.516

-------
NAME       - HAUSEP LAKE
COUNTY     - KOOTENAI
STORET NO. - 1605
  COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IDAHO

          (EUTROPHIC)

  WORKING PAPER NO.  780. NTIS ACCESSION NO. PB-272 256/AB
I. MORPHOMETRY
                 LAKE TYPE

                 NATURAL
  DRAINAGE AREA
     (SO KM)
       SURFACE AREA
         (SO KM)
          3.43
                                                               MEAN DEPTH
                                                                (METERS)
                                                                  1.2
                                     TOTAL INFLOW
                                        (CMS)
RETENTION TIME
    (YEARS)
   •*««««
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITYIMG/L)   CONDUCT IVITY(UMHOS)
           24.                 42.
                MEAN SECCHI DISC
                     (METERS)
                       3.4
                           MEDIAN
                        TOTAL P(MG/L)
                           0.028
                                                                                   MEDIAN
                                                                                ORTHO PIMG/L)
                                                                                   0.013
                                                           MEDIAN
                                                         INORG NIMG/L)
                                                           0.075
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT>
           11.1                 0.6 -  11.6(3)
                           LIMITING NUTRIENT AT SAMPLING TIME
                                                        ( 6/ 3/75) N
              6/ 3/75
   GENERA
   CHYPTOMONAS
   ANKISTRODESMUS
   UNKNOWN CELLS
   NITZSCHIA

   OTHER

   TOTAL
                    SUMMARY OF PHYTOPLANKTON DATA
                   7/23/75
COUNT   GENERA
  459   CHROOMONAS
  153   TABELLARIA
   92   ASTERIONELLA
   61   CRYPTOMONAS
        DIN08RYON
    0   OTHER

  765   TOTAL
                     COUNT
                       260
                       186
                        74
                        74
                        74
                       112

                       780
                                               ( 7/23/75) N
                                                                                9/10/75
                                                                     GENERA
                                                                     APHANIZOMENON
                                                                     MELOSIRA
                                                                     EUGLENA
                                                                     CHLAMYDOMONAS
                                                                     TABELLARIA
                                                                     OTHER

                                                                     TOTAL
                                                                                              (  9/10/75)  N
                      MEDIAN
                   TOTAL NCMG/L)
                      0.420
                                                                                                                 (10/23/75) N
                                                                                     10/23/75
                                                      COUNT
                                                       2225
                                                        805
                                                        284
                                                        189
                                                        189
                                                        568
         GENERA
         CRYPTOMONAS
         CHROOMONAS
         MELOSIRA
         SCHROEDERIA
         MALLOMONAS
         OTHER
                                                                                                4260    TOTAL
COUNT
  217
  186
  186
  186
   62
   29

  866
                                                                                                 .05
IV.  NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A.  INPUT
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
                      ««O«O4««O«
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
INDUSTRIAL (KG/YR)
 oooooooooo
                                                               POINT SOURCE
                                                              SEPTIC TANKS  (KG/YR)
                                                        NON-POINT SOURCE
                                                               (KG/YR)
                        OUTLET (S)
                        (KG/YR)
 PERCENT
RETENTION
 40000
                                                                TOTAL LOADING
                                                                       (KG/YR)

                                                                  ««»«»«•**«
                         LAKE SURFACE AREA LOADING RATE
                                   (G/SO M/YR)
                                       ««•« LAKE SAMPLING ONLY ««««

-------
NAME       - HAYOEN LAKE
COUNTY     - KOOTENAI
STORE! NO. - 1606

I. MORPHOMETRY
                          COMPENDIUM OF  NATIONAL EUTHOPHICATION SURVEY LAKES IN IDAHO

                                  (OLIGO-MESOTROPHIC)

                          WORKING PAPER  NO.   781, NTIS ACCESSION NO. PB-272 232/AB

II.
LAKE TYPE DRAINAGE AREA
(SO KM)
NATURAL 161.40
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY (UMHOS)
30. 32.
SURFACE AREA
(SO KM)
17.00
MEAN SECCHI DISC
(METERS)
6.5
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (YEARS)
7.3 2.000 2.0
MEDIAN MEDIAN MEDIAN
TOTAL PIMG/L) ORTHO P(MG/L) INORG N(MG/L)
0.010 0.003 0.040

MEDIAN
TOTAL NCMG/L)
0.220
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L — DRY WT)
            2.8                 0.2 -   1.5 ( 2)
                                                   LIMITING NUTRIENT AT SAMPLING TIME
                                                   (  4/ 4/75)  P
                                                                      ( 7/23/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
           4/ 4/75
GENERA
OIN08RYON
MELOSIRA
ASTERIONELLA
ANKISTRODESMUS
CYCLOTELLA
OTHER

TOTAL

COUNT
510
198
170
113
113
58
1162

GENERA
OINOBRYON
CYCLOTELLA
ANABAENA
7/23/75




ANKISTRODESMUS

OTHER
TOTAL




COUNT
333
212
30
30
0
605
9/10/75
GENERA
STEPHANODISCUS
CHROOMONAS
APHANOTHECE

OTHER
TOTAL
                                                                                          (  9/10/75)  P
                                                                                               COUNT
                                                                                                  80
                                                                                                  32
                                                                                                  16
                                                                                                   0

                                                                                                 128
                                                                                                                                 O3
                                                                                                                                 ro
IV.
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
               POINT SOURCE         POINT SOURCE
               MUNICIPAL (KG/YR)    INDUSTRIAL (KG/YR)
PHOSPHORUS
8. OUTPUT
NITROGEN

OUTLET(S)
(KG/YR)
««a»«««««e
»«»«««««««
PERCENT
RETENTION
<«««»
                                                            POINT SOURCE
                                                           SEPTIC TANKS  (KG/YR)
                                                                   180.
                                                                  6785.
NON-POINT SOURCE
      (KG/YR)
       1315.
      55215.
                                                                                                         TOTAL LOADING
                                                                                                               (KG/YR)
                                                                                                                1495.
                                                                                                               62000.
                                                     LAKE SURFACE AREA LOADING  RATE
                                                                (G/SQ M/YR)
                                                                    0.09
                                                                    3.6
NON-POINT-SOURCE NUTRIENT EXPORT
 STREAM NAME               MEAN FLOW
                             (CMS)
 HAYDEN CREEK             •    0.910
 MOKINS CREEK                 0.250
                                           DRAINAGE AREA
                                               (SO KM)
                                                73.8
                                                20.2
                                                        MEAN TOTAL P
                                                           (MG/L)
                                                            0.016
                                                            0.030
MEAN TOTAL N
   (MG/L)
    0.479
    0.811
                                                                                          TOTAL P EXPORT
                                                                                          (KG/SO KM/YR)
                                                                                                6.
                                                                                               11.
                          TOTAL N EXPORT
                          (KG/SO KM/YR)
                               190.
                               436.
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                  (MG/L)           (MG/L)
    YELLOWBANKS CREFK             0.018            2.100

-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION  SURVEY LAKES  IN  IDAHO

NAME       - ISLAND PARK RESERVOIR     (EUTHOPHIC)
COUNTY     - FREMONT
STORET NO. - 1607             WORKING  PAPER NO.  782, NTIS ACCESSION NO.  PB-278 522/Ab
I. MORPHOMETRY
                 LAKE TYPE
                 IMPOUNDMENT
                           DRAINAGE AREA
                               (SO KM)
                             1245.80
           SURFACE AREA
             (SO KM)
             31.54
          MEAN DEPTH
           (METERS)
             5.0
 TOTAL INFLOW
    (CMS)
  13.560
 RETENTION TIME
     (DAYS)
     109.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
           71.                 120.
                                         MEAN SECCHI DISC
                                              (METERS)
                                                2.8
                               MEDIAN
                            TOTAL P
-------
NAME       - LAKE LOWELL
COUNTY     - CANYON
STORET NO. - 1608
  COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IDAHO

          (EUTROPHIC)

  WORKING PAPER NO.  783, NTIS ACCESSION NO. PB-278 528/Ab
I. MORPHOMETRY
                 LAKE TYPE
                              DRAINAGE AREA
                                 (SO KM)
                 IMPOUNDMENT •««**»««««

II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
           90.                159.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
           25.4                 0.4 -   1.0 ( 2)
SURFACE AREA
(S(J KM)
39.80
MEAN SECCHI DISC
(METERS)
0.6
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (DAYS)
5.9 10.160 262.0
MEDIAN
TOTAL P(MG/L)
0.070
MEDIAN
OKTHO P(MG/L)
0.01S
MEDIAN
INORG NIMG/L)
0.070
MEDIAN
TOTAL N
-------
NAME       - MAGIC RESERVOIR
COUNTY     - CAMAS. BLAINE
STORET NO. - 1609
           COMPENDIUM OF NATIONAL EUTROPHICATION SUHVEY LAKES IN IDAHO

                   (EUTROPHIC)

           WORKING PAPER NO.  785. NTIS ACCESSION NO. PB-278 553/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
             4144.00
       SURFACE AREA
         (SO KM)
         15.80
          MEAN DEPTH
           (METERS)
            15.0
TOTAL INFLOW
   (CMS)
 15.420
RETENTION TIME
    (DAYS)
    175.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT I VITY(UMHOS)
           94.                 166.
                         MEAN SECCHl DISC
                              (METERS)
                                2.5
                           MEDIAN
                        TOTAL P(MG/L)
                           0.062
                              MEDIAN
                           ORTHO P(MG/L>
                              0.020
                      MEDIAN
                   INORG NIMG/L)
                      0.130
                      MEDIAN
                   TOTAL N(MG/L)
                      0.420
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            7.3                  1.3 -   8.3  ( 2)
                                    LIMITING NUTRIENT AT SAMPLING TIME

                                    ( 5/15/75) P AND N  ( 8/ 5/75) N
              5/15/75
   GENERA
   STEPHANODISCUS
   CHHOOMONAS
   CRYPTOMONAS
   OTHER
   TOTAL
                    SUMMARY OF PHYTOPLANKTON DATA
                            8/ 5/75
         COUNT   GENERA
          4099   CHROOMONAS
           592   CRYPTOMONAS
            42   FRAGILARIA
                 ASTERIONELLA
                 ANABAENA
             0   OTHER

          4733   TOTAL
                                        9/17/75
                     COUNT   GENERA
                       132   APHANIZOMENON
                        75   CERATIUM
                        75   CHROOMONAS
                        56   MELOSIRA
                        38   CKYPTOMONAS
                        56   OTHER

                       432   TOTAL
                                                                                              (  9/17/75)  N
                                         COUNT
                                          3297
                                           230
                                           153
                                           153
                                            38
                                             0

                                          3871
                                                                                                                                      O3
                                                                                                                                      cn
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
        8770.
       32255.

     OUTLtT(S)
     (KG/YR)
     16845.
    359260.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
                                         oooeoooooe
 PERCENT
RETENTION
   59.
   12.
                       POINT SOURCE
                      SEPTIC TANKS IKG/YR)
                                5.
                              110.
                               NON-POINT SOURCE
                                     (KG/YR)
                                     31975.
                                    376630.
                           TOTAL LOADING
                                 (KG/YR)
                                 40750.
                                408995.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              2.58
              25.9
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    BIG WOOD RIVFR               9.390
    CAMAS CREEK                  5.390
    POISON CREEK                 0.040
    ROCK CREEK                   0.320
                        DRAINAGE AREA
                           (SO KM)
                           2147.1
                           1678.3
                             18.7
                            105.7
                    MEAN TOTAL P
                       (MG/L)
                        0.046
                        0.077
                        0.092
                        0.097
                       MEAN TOTAL N
                          (MG/L)
                           0.684
                           1.384
                           0.830
                           1.160
               TOTAL P EXPORT
               (KG/SO KM/YR)
                     4.
                    11.
                    49.
                    11.
                TOTAL N EXPORT
                (KG/SU KM/YR)
                      83.
                      83.
                     597.
                     118.
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MFAN TOTAL N
                                  (MG/L)           (MG/D
    LAVA CREEK                    0.053            0.577
    CAMP CREEK                    0.071            0.688

-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN  IDAHO
NAME       - PALISADES RESERVOIR       (MFSOTRQPHIC)
COUNTY     - BONNEVILLE. ID; LINCOLN, WY
STORET NO. - 1610             WORKING PAPER NO.  786. NTIS ACCESSION NO. PB-272 236/AB

I. MORPHOMETRY
II.
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT)
            2.1                  0.3 -   l.B  ( 3)

                    SUMMARY OF PHYTOPLANKTON DATA
LAKE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 13571.60
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCT IV IT Y (UMHOS)
112. 225.
SURFACE AREA
(SO KM)
61.31
MEAN SECCHI DISC
(METERS)
3.9
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (DAYS)
28.2 181.050 10B.O
MEDIAN MEDIAN MEDIAN
TOTAL PIMG/L) ORTHO PIMG/L) INORG NiMG/L)
0.024 0.007 0.080

MEDIAN
TOTAL N(MG/L)
0.270
                                    LIMITING NUTRIENT AT SAMPLING TIME
                                    (  8/ 5/75)  N
                                                       ( 9/18/75) P AND N  (10/20/75)  P AND N
              8/ 5/75
   GENERA                   COUNT
   CHROOMONAS                 339
   ASTERIONELLA               242
   CRYPTOMONAS                 97
   CEPATIUM                    48
   CHLAMYDOMONAS               48
   OTHER                       98

   TOTAL                      872
                            9/18/75
                 GENERA
                 APHANUOMENON
                 CHROOMONAS
                 ASTERIONELLA
                 OTHER
                                    TOTAL
                     COUNT
                       237
                       142
                        47
                                                               426
                          10/20/75
                GENERA
                APHANIZOMENON
                CHROOMONAS
                CRYPTOMONAS
                MELOSIHA
                ASTERIONELLA
                OTHER

                TOTAL
COUNT
  638
  478
  478
  319
   53
   53

 2019
                                                                                                                  05
IV. NUTRIENT LOADING CHARACTER 1STICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
         165.
        4695.

     OUTLET(S)
     (KG/YR)
    126270.
   2920000.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
 PERCENT
RETENTION
   67.
   19.
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               10.
                              460.
                               NON-POINT  SOURCE
                                      (KG/YR)
                                     383070.
                                   3585375.
          TOTAL  LOADING
                 (KG/YR)
               383245.
               3590730.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YH)
              6.25
              be.6
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    SNAKE RIVER                 128.990
    BEAR CREEK                    2.210
    BIG ELK CREF.K                 1.960
    INDIAN CREEK                  0.390
    MCCOY CREEK                   2.310
    SALT RIVER                   21.420
    OREYS RIVER                  18.470
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL  N
                                  (MG/L)           (MG/L)
    LITTLE ELK CREEK              0.020            0.259
DRAINAGE AREA
(SO KM)
8984.7
199.7
153.3
100.5
279.7
2198.9
1160.3
MEAN TOTAL P
(MG/L)
0.041
0.036
0.027
0.037
0.017
0.091
0.116
MEAN TOTAL
(MG/L)
0.594
0.356
0.426
0.494
0.289
1.423
0.343
N








                                                                          TOTAL P EXPORT
                                                                          (KG/SO KM/YR)
                                                                               29.
                                                                               19.
                                                                               11.
                                                                               10.
                                                                                4.
                                                                               23.
                                                                               49.
                                                                      TOTAL N EXPORT
                                                                      (KG/SQ KM/YR)
                                                                           361.
                                                                           122.
                                                                           172.
                                                                           131.
                                                                            77.
                                                                           375.
                                                                           179.

-------
NAME       - PAYETTE LAKE
COUNTY     - VALLEY
STORE! NO. - 1611
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IDAHO

                                      (MESOTROPHIC)

                              WORKING PAPER NO.  78*, NTIS ACCESSION NO. PB-277 931/AB
I. MORPHOMETRY
                 LAKE TYPE

                 NATURAL
                              DRAINAGE AREA
                                 (SO KM)
                                 373.00
       SURFACE AREA
         (SO KM)
         21.60
          MEAN DEPTH
           (METERS)
             5.7
TOTAL INFLOW
   (CMS)
 10.580
RETENTION TIME
    (DAYS)
    140. 0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY1MG/L)   CONDUCT IVITY(UMHOS)
           12.                 18.
                                            MEAN SECCHI DISC
                                                 (METERS)
                                                   6.8
                           MEDIAN
                        TOTAL P(MG/L)
                           0.013
                              MEDIAN
                           ORTHO P(MG/L)
                              0.007
                      MEDIAN
                   INORG N(MG/L)
                      0.060
                       MEDIAN
                    TOTAL  N(MG/L)
                       0.240
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            4.6                  0.2 -   0.2  ( 2)

                    SUMMARY OF PHYTOPLANKTON DATA
              6/ 4/75                          8/  1/75
   GENERA                   COUNT   GENERA
   ASTEHIONELLA              1170   ASTERIONELLA
   MELOSIRA                  1080   MELOSIRA
   SYNEDRA                     225   TABELLARIA
   CHROOMONAS                  90   CHROOMONAS
   CRYPTOMONAS                 45   SYNEDRA
   OTHER                         0   OTHER
   TOTAL
                             2610   TOTAL
                                                       LIMITING NUTRIENT AT SAMPLING TIME

                                                       (  6/ 4/75) P AND N  ( 8/ 1/75) N
                                                                                9/16/75
                                                             COUNT   GENERA
                                                              1505   TABELLARIA
                                                              1254   MELOSIRA
                                                               502   ASTERIONELLA
                                                               351   CRUCIGENIA
                                                               151
                                                               150   OTHER

                                                              3913   TOTAL
                                                                                              «  9/16/75)  P
                                                      COUNT
                                                         629
                                                         449
                                                         180
                                                         45
                                                                                                1303
                                                                                                                                     05
                                                                                                                                     •vl
IV.
    NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                                        POINT SOURCE
                                        INDUSTRIAL (KG/YR)
                        OUTLET(S)
                        (KG/YR)
                         4030.
                       118875.
 oooooooooo

 PERCENT
RETENTION
    2.
   40.
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               15.
                              535.
                               NON-POINT SOURCE
                                      (KG/YR)
                                      4080.
                                    197510.
                           TOTAL  LOADING
                                  (KG/YH)
                                   4095.
                                 196045.
LAKE SURFACE AREA LOADING RATE
          (G/SO M/YR)
              0.19
               9.2
   NON-POINT-SOURCE
    STREAM NAME
                    NUTRIENT EXPORT
                              MEAN FLOW    DRAINAGE AREA
                                (CMS)         (SO KM)
    NORTH FORK PAYETTE RIVEH     7.580         255.9
    HORSE CREEK                  0.290          12.8

VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)          (MG/L)
    ELIP CREEK                   0.012           0.282
    FALL CREEK                   0.015           0.504
                                                             MEAN  TOTAL  P     MEAN  TOTAL  N    TOTAL P EXPORT   TOTAL N EXPORT
                                                                (MG/L)           (MG/L)        (KG/SO KM/YR)     (KG/SO KM/YR)
                                                                0.013           0.413             11.              508.
                                                                0.012           0.578              8.              430.

-------
NAME
COUNTY
- LOWER TWIN LAKES
- KOOTENAI
STORET NO. - 1612

I. MORPHOMETRY
COMPENDIUM OF NATIONAL EUTHOPHICATION SURVEY LAKES IN IDAHO

        (EUTHOPHIC)

WORKING PAPER NO.  787, NTIS ACCESSION NO. P8-278 554/AB

II.
LAKE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 133.40
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCT IV ITY (UMHOS)
15. 22.
SURFACE AREA
(SO KM)
16.35
MEAN SECCHI DISC
(METERS)
3.3
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (YEARS)
2.3 2.140 1.8
MEDIAN MEDIAN MEDIAN
TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L)
0.016 0.009 0.050

MEDIAN
TOTAL N(MG/L)
0.320
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             IMG/L—DRY WT)
            2.3                 0.4 -   0.9 ( 3)
                                            LIMITING NUTRIENT AT SAMPLING TIME

                                            ( 6/ 3/75) N       { 7/23/75) N
                                                                (  9/10/75)  P AND N (10/24/75) P AND N
                    SUMMARY OF PHYTOPLANKTON DATA
              6/ 3/75
   GENERA
   OIN06RYON
   ASTERIONELLA
   FLAGELLATES
   ANABAENA
   NITZSCHIA
   OTHER

   TOTAL
                                    7/23/75
                 COUNT   GENERA
                  1214   MELOSIRA
                   187   FHAGILARIA
                   140   ANKISTRODESMUS
                    47   ASTERIONELLA
                    47   CHLOROPHYTAN CELLS
                    45   OTHER

                  1680   TOTAL
                                                  9/10/75
                               COUNT   GENERA
                                 875   MERISMOPEDIA
                                 175   CHROOMONAS
                                 131   MELOSIRA
                                  87   CRYPTOMONAS
                                  87   OOCYSTIS
                                 176   OTHER

                                1531   TOTAL
                                         COUNT
                                          3081
                                            171
                                            171
                                            128
                                             86
                                            129
                    10/24/75
          GENERA
          ANKISTRODESMUS
          CRYPTOMONAS
          CHROOMONAS
          TABELLARIA

          OTHER
                                           3766    TOTAL
                  COUNT
                    128
                    126
                     43
                     43
                                      342
                                                                                    00
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                             POINT SOURCE
                             INDUSTRIAL (KG/YR)
             OUTLET(S)
             (KG/YR)
               235.
              7610.
           PERCENT
          RETENTION
             88.
             85.
                                 POINT SOURCE
                                SEPTIC TANKS  (KG/YR)
                                        120.
                                       4465.
                               NON-POINT  SOURCE
                                      (KG/YR)
                                       1790.
                                      47180.
            TOTAL LOADING
                  (KG/YR)
                   1910.
                  51645.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              0.12
               3.2
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    SHOVE CREEK                  0.110
    FISH CREEK                   0.610
                                DRAINAGE AREA
                                    (SQ KM)
                                      6.6
                                     37.8
                              MEAN TOTAL P
                                  (MG/L)
                                  0.023
                                  0.030
                       MEAN TOTAL
                           (MG/L)
                           0.642
                           0.558
TOTAL P EXPORT
(KG/SO KM/YR)
      8.
     15.
TOTAL N EXPORT
(KG/SO KM/YR)
     298.
     227.
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                  (MG/L)           (MG/L)
    UNNAMED STREAM Bl             0.037            0.570

-------
NAME
COUNTY
STORE! NO.
- UPPER TWIN LAKES
- KOOTENAI
- 1613
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IDAHO

        (EUTROPHIC)

WORKING PAPER NO.  787, NTIS ACCESSION NO. PB-278 554/AB
I. MORPHOMETRY

II.
LAKE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 133.40
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITYIMG/L) CONDUCT I VI T Y (UMHOS)
14. 20.
SURFACE AREA
(SU KM)
16.35
MEAN SECCHI DISC
(METERS)
3.3
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (YEARS)
2.3 3.140 1.8
MEDIAN MEDIAN MEDIAN
TOTAL P(MG/L) ORTHO PIMG/L) INORG N(MG/L)
0.017 0.004 0.045

MEDIAN
TOTAL N
-------
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN MONTANA
NAME       - CANYON FERRY RESERVOIR   (EUTROPHIC)
COUNTY     - BROADWATER. LEWIS 4, CLARK
STORET NO. - 3001             WORKING PAPER NO.  790. NTIS ACCESSION NO. PB-270 605/AB

I. MORPHOMETRY

II.

LAKE TYPE DRAINAGE AREA
(SCI KM)
IMPOUNDMENT 41191.30
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCT IV I TY (UMHOS)
127. 235.
SURFACE AREA
(SO KM)
142.45
MEAN SECCHI DISC
(METERS)
1.4
MEAN DEPTH
(METERS)
17.4
MEDIAN
TOTAL P(MG/L)
0.047
TOTAL INFLOW
(CMS)
155.493
MEDIAN
ORTHO P(MG/L)
0.029
RETENTION TIME
(DAYS)
186.0
MEDIAN
INORG NIMG/L)
0.170

MEDIAN
TOTAL N(MG/L)
0.440
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            5.8                 5.2 -   7.4 ( 3)
                           LIMITING NUTRIENT AT SAMPLING TIME

                           (  5/28/75)  N       ( 7/31/75) N
                                 (  9/  4/75)  P  AND N (10/23/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              5/28/75
   GENERA
   CHROOMONAS
   MELOSIRA
   FRAGILARIA
   DIATOMA
   CYMBELLA
   OTHER

   TOTAL
                   7/31/75
COUNT   GENERA
  411   FRAGILARIA
  376   APHANIZOMENON
  274   NITZSCHIA
  205   CHROOMONAS
  137   SYNEDRA
  753   OTHER

 2156   TOTAL
                   9/ 4/75
COUNT   GENERA
 2667   FRAGILARIA
 1731   MELOSIRA
  187   CHROOMONAS
  187   ASTERIONELLA
  140   STEPHANODISCUS
   94   OTHER

 5006   TOTAL
COUNT
  389
  389
  311
   78
   39
  116
1322   TOTAL
                 10/23/75
       GENERA                    COUNT
       APHANIZOMENON               265
       CHROOMONAS                  144
       MELOSIRA                    120
       NAVICULA                     96
       CYMBELLA                     48
       OTHER                       145

                                   818
IV. NUTRIENT LOADING CHARACTEHISTICS(LAKE)
    A. INPUT
POINT SOURCE POINT SOURCE
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR)

POINT SOURCE NON-POINT SOURCE TOTAL LOADING
SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
1 AC "> -» -» r\f\ t\ T> Or*"5 1 n
1 Ob •
•a rv/\ n
JC. 1 f\l\I .
/. 1 T a c i c
NITROGEN 4485. e
-------
NAME       - CLARK CANYON RESERVOIR
COUNTY     - BEAVERHEAO
STORET NO. - 3002             WORKING PAPER NO.
       COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN MONTANA

               (EUTROPHIC)

                          791, NTIS ACCESSION NO. PB-269 846/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
       DRAINAGE AREA
          (SO KM)
         6011.40
       SURFACE AREA
         (SO KM)
         19.97
          MEAN DEPTH
           (METERS)
            15.8
TOTAL INFLOW
   (CMS)
 10.180
RETENTION TIME
    (YEARS)
      1.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
          364.                385.
                     MEAN SECCHI DISC
                          (METERS)
                            2.6
                           MEDIAN
                        TOTAL P(MG/L)
                           0.049
                              MEDIAN
                           ORTHO PIMG/L)
                              0.027
                      MEDIAN
                   INORG N(HGXL)
                      0.160
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            2.4                «*oe»»«««»
                                LIMITING NUTRIENT AT SAMPLING TIME

                                (  5/28/75)  N       ( 7/31/75) N
                                                                                              ( 9/  3/75) N
                      MEDIAN
                   TOTAL NIMG/L)
                      0.550
                                                                                                                 (10/20/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              5/28/75
                                               7/31/75
   GENERA
   CHROOMONAS
   CRYPTOMONAS
   EUNOTIA
   SCHROEDERIA
   HANTZSCHIA
   OTHER

   TOTAL
COUNT
175
145
87
58
58
0
GENEHA
SCHROEDERIA
ANARAENA
CHROOMONAS


OTHER
                              523
                                    TOT&L
                                                         9/ 3/75
                                      COUNT   GENEHA
                                        371   APHANIZOMENON
                                         53   CHROOMONAS
                                         53   CRYPTOMONAS
                                              SCHROEDERIA

                                          0   OTHER

                                        477   TOTAL
                                                                         10/20/75
                                                      COUNT   GENERA
                                                       1634   APHANIZOMENON
                                                        218   CHROOMONAS
                                                        145   CRYPTOMONAS
                                                         36   SCHROEDERIA

                                                          0   OTHER

                                                       2033   TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A.  INPUT
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                 POINT SOURCE
                 INDUSTRIAL (KG/YR)
 OUTLET(S)
 (KG/YR)
 11776.
311590.
 PERCENT
RETENTION
   41.
   23.
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                                5.
                              140.
                               NON-POINT SOURCE
                                     (KG/YR)
                                     19935.
                                    404850.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YH)
              1.00
              20.3
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    RED ROCK RIVER               6.650
    HORSE PRAIRIE CREEK          3.080
                           TOTAL LOADING
                                 
-------
NAME       - FLATHEAD LAKE
COUNTY     - FLATHEAD, LAKE
STORET NO. - 3003
                              COMPENDIUM OF  NATIONAL  EUTROPHICATION SURVEY LAKES IN MONTANA

                                      (OLIGOTROPrilC)

                              WORKING PAPER  NO.   792,  NTIS ACCESSION NO.  PB-271 466/AB
   MORPHOMETRY
                 LAKE TYPE

                 NATURAL
                              DRAINAGE AREA
                                 (SQ KM)
                               18854.20
       SURFACE  AREA
         (SQ  KM)
        475.60
          MEAN DEPTH
           (METERS)
            13.5
 TOTAL INFLOW
    (CMS)
 331.730
 RETENTION TIME
     (DAYS)
     225.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)    CONDUCT IV ITY(UMHOS)
           R9.                121.
                                            MEAN SECCHI DISC
                                                 (METERS)
                                                   5.9
                           MEDIAN
                        TOTAL P(MG/L)
                           0.008
                              MEDIAN
                           ORTHO P(MG/L>
                              0.004
                       MEDIAN
                    INORG NIMG/L)
                       0.050
                       MEDIAN
                    TOTAL N(MG/L)
                       0.230
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT)
            1.3               ««««»«»«««
                                                       LIMITING NUTRIENT AT SAMPLING TIME
                                                       ( 5/29/75) N
                                                                           ( 7/25/75) P  AND  N  <  9/  8/75)  P
                    SUMMARY OF PHYTOPLANKTON DATA
              5/29/75
   GENERA
   ASTERIONELLA
   TABELLARIA
   DINOBHYON
   CRYPTOMONAS
   CHROOMONAS
   OTHER

   TOTAL
                                               7/25/75
                            COUNT   GENERA
                               67   DINOBRYON
                               38   CENTRIC DIATOM
                               29   TABELLARIA
                               10   ASTERIONELLA
                               10   OOCYSTIS
                                0   OTHER

                               154   TOTAL
                     COUNT
                       300
                       128
                        43
                        43
                        43
                         0

                       557
                           9/ 8/75
                GENERA
                CENTRIC DIATOM
                CHROOMONAS
                NITZSCHIA
                OTHER
                             TOTAL
                  COUNT
                     37
                     37
                     37
                      0

                    111
                                                                                TO
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                          26290.
                          73820.

                        OUTLET(S)
                        (KG/YR)
                        114370.
                      5510465.
                                        POINT SOURCE
                                        INDUSTRIAL (KG/YR)
 PERCENT
RETENTION
   34.
   14.
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                              465.
                            17540.
                               NON-POINT SOURCE
                                      (KG/YR)
                                    146700.
                                   6342010.
                            TOTAL  LOADING
                                   (KG/YR)
                                  173*55.
                                 6433370.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              0.36
              13.5
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME

    FLATHEAD RIVER
    DAYTON CREEK
    PROCTOR CREEK
    STONER CREEK
    SWAN RIVER
                              MEAN FLOW
                                 (CMS)
                                298.370
                                  0.112
                                  0.007
                                  0.338
                                 32.S80
   DRAINAGE AREA
      (SO KM)
     16058.0
       179.0
        12.1
        58.5
      1888.1
       MEAN TOTAL P
          (MG/L)
           0.015
           0.031
           0.021
           0.022
           0.017
MEAN TOTAL N
   (MG/L)
    0.582
    0.788
    0.876
    0.638
    0.374
TOTAL P EXPORT
(KG/SO KM/YR)
      7.
     0.6
     0.4
      4.
      9.
TOTAL N EXPORT
(KG/SU KM/YR)
     337.
      16.
      16.
     116.
     205.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME

    BOHANNON CREEK
    FORREY CREEK
    TEEPEE CREEK
    HELLROAPING CREEK
                               MEAN  TOTAL P
                                  (MG/L)
                                  0.013
                                  0.018
                                  0.019
                                  0.014
      MEAN TOTAL N
         (MG/L)
         0.399
         0.689
         0.394
         0.377

-------
NAME
COUNTY
STORET NO.
- GEORGETOWN LAKE
- DEER LODGE, GRANITE
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN  MONTANA

                                       (EUTROPHIC)
- 300*
                   WORKING PAPER NO.  793, NTIS ACCESSION NO. PB-270 600/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                   DRAINAGE AREA
                      (SO KM)
                      137.30
       SURFACE AREA
         (SO KM)
         11.?0
          MEAN DEPTH
           (METERS)
             3.4
TOTAL INFLOW
   (CMS)
  1.297
RETENTION TIME
    (DAVS)
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
          101.                162.
                                 MEAN SECCHI DISC
                                      (METERS)
                                        3.4
                           MEDIAN
                        TOTAL P(MG/L)
                           0.022
                              MEDIAN
                           ORTHO P(M6/L)
                              0.011
                      MEDIAN
                   INOR6 NIMG/L)
                      0.040
                      MEDIAN
                   TOTAL  N(MG/L)
                      0.420
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            7.0                      3.6
                                            LIMITING NUTRIENT AT SAMPLING TIME
                                                        ( 7/29/75) N
                                                                           ( 9/ 4/75)  P  AND  N
                    SUMMARY OF PHYTOPLANKTON DATA
   GENERA
   FRAGILARIA
   OOCYSTIS
   CRYPTOMONAS
   FLAGELLATES
   TETRAEORON
   OTHER

   TOTAL
              7/29/75
                                    9/ 4/75
                 COUNT   GENERA
                   732   CHROOMONAS
                   628   FRAGILARIA
                   384   OSCILLATORIA
                   384   ANABAENA
                   314   ANACYSTIS(MICROCYSTIS)
                   174   OTHER

                  2616   TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                             POINT SOURCE
                             INDUSTRIAL  (KG/YR)
             OUTLET(S)
             (KG/YR)
              1230.
             37545.
 PERCENT
RETENTION
 LOSS
 LOSS
                     COUNT
                       641
                       529
                        84
                        56
                        56
                       110

                      1476
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               55.
                             2125.
                                                                                GO
                               NON-POINT SOURCE
                                     (KG/YR)
                                       725.
                                     33970.
                           TOTAL LOADING
                                  (KG/YR)
                                    780.
                                 36095.
LAKE SURFACE AREA LOADING RATE
          (G/SO M/YR)
             0.07
              3.2
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    NORTH FORK FLINJIREEK       0.144
                                DRAINAGE AREA
                                   (SO KM)
                                     37.3
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGEO STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                  (MG/L)           (MG/L1
    flLODGETT GULCH                0.097            0.823
                    MEAN TOTAL
                       (MG/L)
                        0.021
                       MEAN TOTAL
                          (MG/L)
                           0.863
               TOTAL P EXPORT
               (KG/SO KM/YR)
                     3.
                TOTAL N EXPORT
                (KG/SQ KM/YR)
                     105.

-------
NAME       - HEBGEN LAKE
COUNTY     - GALLATIN
STORE! NO. - 3005
       COMPENDIUM  OF  NATIONAL EUTROPHICATION SURVEY LAKES IN MONTANA

               (MESO-EUTROPHIC)

       WORKING PAPER  NO.   794,  NTIS ACCESSION NO.  P8-270 604/AB
I. MORPHOMETRY
                 LAKE TYPE
                 IMPOUNDMENT
                              DRAINAGE AREA
                                 (SO KM)
                                3408.70
                        SURFACE  AREA
                          (SO KM)
                          51.27
                       MEAN DEPTH
                        (METERS)
                          8.2
        TOTAL INFLOW
           (CMS)
         28.853
 RETENTION TIME
     (DAYS)
     172.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY1MG/L)   CONDUCT IVITY(UMHOS)
           76.                179.
                     MEAN  SECCHI  DISC
                          (METERS)
                            3.4
                           MEDIAN
                        TOTAL P(MG/L)
                           0.022
              MEDIAN
           ORTHO P(MG/L>
              0.020
       MEDIAN
    INORG N(MG/L)
       0.040
      MEDIAN
   TOTAL N(MG/L)
      0.220
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT)
            4.1                      1.7
                                LIMITING NUTRIENT AT SAMPLING TIME
                                (  7/30/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              7/30/75
   GENERA
   CHROOMONAS
   FRAGILARIA
   APHANIZOMENON
   ANA8AENA
   APHANOTHECE
   OTHER

   TOTAL
                        9/ 3/75
     COUNT   GENERA
       171   FRAGILARIA
       128   CHROOMONAS
        86   ASTERIONELLA
        86   CKYPTOMONAS
        86   STEPHANODISCUS
        42   OTHER

       599   TOTAL
                     COUNT
                       316
                       281
                       105
                        70
                        35
                       105

                       912
                                                   ( 9/ 3/75) N
          10/20/75
GENERA
MELOSIRA
ANACYSTIS(MICROCYSTIS)
SCHROEOERIA
CHROOMONAS
GOMPHOSPHAERIA
OTHER

TOTAL
                                                      (10/20/75)  N
  COUNT .
    428
     86
     86
     86
     43
    169

    898
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                 POINT SOURCE
                 INDUSTRIAL (KG/YR)
 OUTLET(S)
 (KG/YR)
 20550.
691505.
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               55.
                             1985.
 ««»«»«»««»

 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (6/SQ M/YR)
   15.                     0.47
 LOSS                     12.9
               NON-POINT  SOURCE
                      (KG/YR)
                      24120.
                    661015.
            TOTAL LOADING
                  (KG/YR)
                  24175.
                 663000.
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLO*
                                 (CMS)
    MADISON RIVER                13.940
    WATKINS CREEK                0.098
    SOUTH FORK MADISON KIVEK     3.920
    OUCK CREEK                   1.350
                    DRAINAGE AREA
                       (SO KM)
                       1157.7
                         29.5
                        211.6
                        305.4
                    MEAN TOTAL P
                       (MG/L)
                        0.023
                        0.009
                        0.020
                        0.033
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME               MEAN TOTAL H    MEAN TOTAL N
                                  (MG/L)           (MG/L)
    DENNY CREEK                   0.016            0.750
    COUGAR CREEK                  0.029            0.556
       MEAN  TOTAL N
           (MG/L)
           0.774
           0.338
           0.761
           0.948
TOTAL P EXPORT
(KG/SO KM/YR)
     13.
      1.
     12.
      5.
TOTAL N EXPORT
(KG/SO KM/YR)
     211.
      35.
     445.
     132.

-------
                              COMPENOIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN MONTANA
NAME       - KOOCANUSA RESERVOIR       (MESOTROPHIC)
COUNTY     - LINCOLN, MT; BRITISH COLUMBIA, CAN.
STORET NO. - 3006             WORKING PAPER NO.  795, NTIS ACCESSION NO. HB-270 633/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
            23271.10
       SURFACE AREA
         (SO KM)
        188.18
  MEAN DEPTH
   (METERS)
    38.4
TOTAL INFLOW
   (CMS)
308.610
RETENTION TIME
    (DAYS)
    271.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITYIMG/L)   CONDUCT IV ITY(UMHOS)
           96.                173.
                         MEAN SECCHI DISC
                              (METERS)
                                4.1
                           MEDIAN
                        TOTAL P(MG/L)
                           0.045
                      MEDIAN
                   ORTHO P(MG/L)
                      0.044
                      MEDIAN
                   INORG N(MG/L)
                      0.100
                      MEDIAN
                   TOTAL N(MG/L>
                      0.300
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            2.7                  4.4 -   7.1  ( 2)

                    SUMMARY OF PHYTOPLANKTON DATA
                                    LIMITING NUTRIENT AT SAMPLING TIME

                                    ( 6/ 2/75) N        ( 7/24/75) N
              6/ 2/75
   GENERA                   COUNT
   CHROOMONAS                 339
   PANDORINA                  135
   CRYPTOMONAS                135
   CENTRIC DIATOM             135
   NITZSCHIA                   68
   OTHER                       35

   TOTAL                      847
                            7/24/75
                 GENERA
                 ASTERIONELLA
                 CHROOMONAS
                 CRYPTOMONAS
                 OTHER

                 TOTAL
                   9/ 5/75
COUNT   GENERA
  355   CHROOMONAS
  148   ANABAENA
   89   APHANIZOMENON
        ASTERIONELLA

    0   OTHER

  592   TOTAL
                                                                           ( 9/ 5/75)  N
                                                      COUNT
                                                         124
                                                         62
                                                         31
                                                         31
                                                                                                 248
                                                                                             en
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
        1835.
        9120.

     OUTtET(S)
     (KG/YR)
    228840.
   3725205.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                        »«««»»*•«
                       NON-POINT SOURCE
                             (KG/YR)
                             24755.
                            406850.
                           TOTAL LOADING
                                  (KG/YR)
                                 26590.
                                415970.
 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (G/SO M/YR)
 LOSS                     1.22« .
 LOSS                     19.8*
v. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    SRISTOW CREEK                0.440
    BIG CREEK                    4.310
    TOBACCO RIVER                6.520
                        DRAINAGE AREA
                           (SO KM)
                             66.8
                            361.8
                           1139.6
                    MEAN TOTAL P
                       (MG/L)
                        0.017
                        0.015
                        0 . 040
               MEAN TOTAL N
                  (MG/L)
                   0.439
                   0.279
                   0.743
               TOTAL P EXPORT
               (KG/SO KM/YR)
                     3.
                     7.
                    11.
                TOTAL N EXPORT
                (KG/SU KM/YR)
                      76.
                      81.
                     146.
vi. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
    STREAM NAME

    PINKHAM CREEK
    CRIPPLE HORSE CREEK
    CANYON CREEK
    JACKSON CREEK
    BARRON CREEK
    WARLAND CREEK
           MEAN TOTAL P
              (MG/L)
              0.024
              0.017
              0.031
              0.018
              0.015
              0.037
      MEAN TOTAL N
         (MG/L)
         0.659
         0.567
         0.734
         0.336
         0.378
         0.657

-------
MCGUIWE CREEK                0.014           0.312






« ESTIMATE BASED ON OUTLET LOADS.
                                                                                                                                  O2

-------
NAME       - MARY RONAN LAKE
COUNT*     - LAKE
STORET NO. - 3007
      COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN MONTANA

              (MESO-EUTROPH1C)

      WORKING PAPER NO.  796, NTIS ACCESSION NO. PB-270 635/AB
   MORPHOMETRY
                 LAKE TYPE
                 NATURAL
      DRAINAGE AREA
         (SO KM)
          76.80
       SURFACE AREA
         (SO KM)
          6.15
                                                               MEAN DEPTH
                                                                 (METERS)
                                                                  8.5
                        TOTAL INFLOW
                           (CMS)
                          0.110
 RETENTION TIME
     (YEARS)
      17.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
           68.                103.
                    MEAN SECCHl DISC
                         (METERS)
                           3.3
                           MEDIAN
                        TOTAL P(MG/L)
                           0.020
                              MEDIAN
                           OMTHO P(MG/L)
                              0.006
       MEDIAN
    INORG N(MG/L)
       0.040
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            4.7               ««««»«««*«

                    SUMMARY OF PHYTOPLANKTON DATA
                               LIMITING NUTRIENT AT SAMPLING TIME
              6/ 2/75
   GENERA                   COUNT
   DINOBRYON                 2787
   CRYPTOMONAS                190
   ANACYSTIS(MICROCYSTIS)     127
   APHANIZOMENON               95
   FRAGILARIA                  95
   OTHER                      126

   TOTAL                     3420
                       7/28/75
            GENERA
            APHANIZOMENON
            CRUCIGENIA
            CRYPTOMONAS
            CHROOMONAS
            ANABAENA
            OTHER

            TOTAL
                               (  6/ 2/75)  N
                     COUNT
                       245
                       163
                       163
                       163
                        82
                       124

                       940
                                                  ( 7/28/75) N
                           9/ 5/75
                GENERA
                CHROOMONAS
                APHANOTHECE
                ANABAENA
                CKYPTOMONAS
                APHANIZOMENON
                OTHER

                TOTAL
                                                                     ( 9/ 5/75) N
      MEDIAN
   TOTAL N
-------
                              COMPENDIUM OF NATIONAL EUTROPHICAT10N SURVEY LAKES IN MONTANA

NAME       - LAKE MCDONALD            (OLIGOTPOPHIC)
COUNTY     - FLATHEAD
STORET NO. - 3008             WORKING PAPER NO.  797, NTIS ACCESSION NO. P8-270 634/AB

I. MORPHOMETHY
                 LAKE TYPE    DRAINAGE AREA    SURFACE AREA    MEAN DEPTH    TOTAL INFLOW     RETENTION TIME
                                 (SO KM)         (SO KM)         (METERS)        (CMS)             (YEARS)
                 NATURAL         4*3.90          32.63           45.7         14.957                3.2

II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN          MEAN SECCHI DISC       MEDIAN          MEDIAN           MEDIAN          MEDIAN
    ALKALINITYIMG/L)   CONDUCTIVITY(UMHOS)       (METERS)       TOTAL P(M6/L)   ORTHO PIMG/L)    INORG N(MG/L)   TOTAL N(MG/L>
           54.                  6.                 7.9             0.006           0.002            0.180           0.370

III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD    LIMITING NUTRIENT AT SAMPLING TIME
            (UG/L)             (MG/L—DRY WT)
            0.5                      0.5               (  6/ 1/75)  P        ( 7/28/75) P

                    SUMMARY OF PHYTOPLANKTON DATA
              6/ 1/75                          7/28/75
   GENERA                   COUNT   GENERA                   COUNT
   DIN08RYON                   56   CYCLOTELLA                  57
   GYMNODINIUM                 14
   OTHER                        0   OTHER                        0

   TOTAL                       70   TOTAL                       57
                                                                                                                                        •vl
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)                                                                                          .    OO
    A. INPUT
                   POINT SOURCE         POINT SOURCE           POINT SOURCE         NON-POINT SOURCE    TOTAL LOADING
                   MUNICIPAL  (KG/YR)    INDUSTRIAL  (KG/YR)    SEPTIC TANKS  (KG/YR)         (KG/YR)              (KG/YH)
     PHOSPHORUS              135.         «*«•««•«*«                     70.                  9295.               9500.
     NITROGEN               400.         «»««««•»»«                  2635.                437040.             440075.
    B. OUTPUT
                        OUTLET(S)        PERCENT     LAKE SURFACE AREA  LOADING  RATE
                         (KG/YR)         RETENTION              (G/SQ M/YR)
     PHOSPHORUS          5035.             47.                     0.29
     NITROGEN          36439b.              17.                     13.5

V. NON-POINT-SOURCE NUTRIENT  EXPORT
    STREAM  NAME               MEAN FLOW    DRAINAGE  AREA    MEAN TOTAL  P    MEAN TOTAL  N    TOTAL P EXPORT   TOTAL N EXPORT
                                 (CMS)          (SO KM)          (MG/L)           (MG/L)        (KG/SO KM/YR)    (KG/SO KM/YR)
    MCDONALD CREEK               12.650         283.9           0.014           0.769             26.              1223.
    FISH CREEK                   0.700           39.6           0.015           0.806             11.              473.
    SNYOER  CREEK                 0.472           13.8           0.024           0.736             21.              814.
    SPRAGUE CREEK                0.165           16.5           0.013           0.691              4.              241.

VI. MEAN NUTRIENT CONCENTRATIONS IN UNCAGED STREAMS
    STREAM  NAME               MEAN TOTAL P    MEAN  TOTAL N
                                  (MG/L)           (MG/L)
    JACKSON CREEK                0.020           0.72?
    FERN CREEK                   0.014           0.867

-------
NAME
COUNTY
STORE! NO.
- NELSON RESERVOIR
- PHILLIPS
- 3009
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN MONTANA

        (EUTROPHIC)

FORKING PAPER NO.  798, NTIS ACCESSION NO. P8-270 603/AB
I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
                   DRAINAGE AREA
                      (SO KM)
                 SURFACE AREA
                   (SO KM)
                   18.45
          MEAN DEPTH
           (METERS)
             5.7
TOTAL INFLOX
   (CMS)
  2.290
RETENTION TIME
    (YEARS)
      1.8
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
          175.                562.
                                 MEAN SECCHI DISC
                                      (METERS)
                                        1.1
                                     MEDIAN
                                  TOTAL P(MG/L)
                                     0.029
                              MEDIAN
                           ORTHO P(M6/L)
                              0.007
                      MEDIAN
                   INORG N(MG/L)
                      0.075
                      MEDIAN
                   TOTAL  N
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                             POINT SOURCE
                             INDUSTRIAL (KG/YR)
             OUTLET(S)
             (KG/YR)
              1340.
             81395.
           PERCENT
          RETENTION
             82.
             48.
                                 HOINT SOURCE
                                SEPTIC TANKS (KG/YR)
                                         15.
                                        535.
                               NON-POINT SOURCE
                                     (KG/YR)
                                      7620.
                                    154895.
                           TOTAL LOADING
                                  (KG/YR)
                                   7635.
                                155430.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              0.41
               8.4
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    NELSON CANAL                 2.290
                                DRAINAGE AREA
                                    (SQ KM)
                              MEAN TOTAL P
                                 (MG/L)
                                  0.101
                       MEAN TOTAL N
                          (MG/L)
                           1.869
               TOTAL P EXPORT    TOTAL  N  EXPORT
               (KG/SQ KM/YR)     (KG/SO KM/YR)
              »*>*«**•     .   *«••*•»•*•

-------
NAME       - SEELEY LAKE
COUNTY     - MISSOUL4
STORET NO. - 3010

I. MORPHOMETRY
       COMPENDIUM  OF NATIONAL EUTROPHICAT ION  SURVEY  LAKES IN MONTANA

               (MESO-EUTROPHIC)

       WORKING  PAPER NO.   799.  NTIS  ACCESSION NO.  PB-270 636/AB

II.
LAKE TYPE DRAINAGE AREA
(SO KM)
NATURAL 378.40
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCTIVITY (UMHOS)
47. 60.
SURFACE AREA
(SO KM)
3.49
MEAN SECCHI DISC
(METERS)
3.5
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (DAYS)
18.3 5.881 137.0
MEDIAN MEDIAN MEDIAN
TOTAL P(MG/L) ORTHO P1MG/L) INORG N(MG/L)
0.015 0.010 0.040

MEDIAN
TOTAL NCMG/L)
0.225
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            2.2               «»«»««««»«
                                LIMITING NUTRIENT  AT SAMPLING TIME
                                (  5/28/75)  N
                                                   (  7/29/75)  N
              5/28/75
                    SUMMARY OF PHYTOPLANKTON DATA
   GENERA
   OINOBRYON
   MELOSIRA
   CRYPTOMONAS
   FLAGELLATES
   FRAGILARIA
   OTHER

   TOTAL
                        7/29/75
     COUNT    GENERA
       826    CHROOMONAS
       425    FRAGILARIA
       142    MELOSIRA
       142    OINOBRYON
        71    ASTERIONELLA
        93    OTHER

      1699    TOTAL
                                                                                9/ 4/75
                     COUNT
                       341
                       289
                       210
                       105
                        26
                        53

                      1024
GENERA
DINOBRYON
FRAGILARIA
CRYPTOMONAS
FLAGELLATES
ANABAENA
OTHER

TOTAL
                                                                      ( 9/ 4/75) P AND N
COUNT
  425
  297
  170
  170
   85
  382

 1529
OC
o
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                 POINT  SOURCE
                 INDUSTRIAL  (KG/YR)
 OUTLET(S)
 (KG/YR)
  2105.
115975.
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               40.
                             1490.
 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (G/SQ M/YR)
   38.                      0.97
 LOSS                     21.8
               NON-POINT  SOURCE
                      (KG/YR)
                       3340.
                      74575.
          TOTAL LOADING
                 (KG/YR)
                  3380.
                76065.
V.
   NON-POINT-SOURCE NUTRIENT
    STREAM NAME

    CLEARWATER RIVER
    DEER CREEK
    SEELEY CREEK
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGEO STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                  (MG/L)           (MG/L)
    RICE CREEK                    0.013            0.528
    AUGGIE CREEK                  0.027            0.623
EXPORT
MEAN FLOW
(CMS)
4.000
0.763
0.111

DRAINAGE AREA
(SQ KM)
273.2
51.3
13.2

MEAN TOTAL P
(MG/L)
0.014
0.018
0.015

MEAN TOTAL N
(MG/L)
0.356
0.504
0.427
                                                                     TOTAL P  EXPORT
                                                                     (KG/SO KM/YR)
                                                                           8.
                                                                           14.
                                                                           4.
                                                                      TOTAL N EXPORT
                                                                      (KG/SO KM/YR)
                                                                           178.
                                                                           255.
                                                                           138.

-------
NAME       - SHAN LAKE
COUNTY     - LAKE
STORET NO. - 3011
       COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES IN MONTANA

               (MESOTROPHIC)

       WORKING PAPER NO.  800, NTIS ACCESSION NO. PB-270 602/AB
I. MOHPHOMETRY
                 LAKE TYPE

                 NATURAL
       DRAINAGE AREA
          (SO KM)
         1737.90
       SURFACE AREA
         (SU KM)
         10.85
          MEAN DEPTH
           (METERS)
            21.9
TOTAL INFLOW
   (CMS)
 3*.338
RETENTION TIME
    (DAYS)
     85.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IV ITY
-------
NAME       - TALLY LAKE
COUNTY     - FLATHEAD
STORET NO. - 3012

I. MORPHOMETRY
                           COMPENDIUM OF  NATIONAL EUTROPHICATION SURVEY LAKES IN MONTANA

                                   (OLIGOTROPHIC—MESOTROPHIC)

                           WORKING PAPER  NO.   801, NTIS ACCESSION NO.  P8-269 843/AB
LAKE TYPE DRAINAGE AREA SURFACE AREA
(SQ KM) (SO KM)
NATURAL 527.10 5.37
MEAN DEPTH "TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (YEARS)
68.9 4.250 2.8
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN
ALKALINITY(MG/L)
94.
MEDIAN
CONOUCTIVITY(UMHOS)
109.
MEAN SECCHI DISC
(METERS)
4.1
MEDIAN
TOTAL PIMG/L)
0.011
MEDIAN
OHTHO P(MG/L)
0.004
MEDIAN
INORG N(MG/L)
0.050
MEDIAN
TOTAL N(MG/L)
0.240
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)              (MG/L — DRY WT)
            2.1               «•««•«•«»•
                                                    LIMITING NUTRIENT AT SAMPLING TIME

                                                    (  6/ 2/75)  N       ( 7/28/75) P
           6/ 2/75
GENERA
DINOBRYON
SYNEDRA
FLAGELLATES
ASTERIONELLA
STEPHANODISCUS
OTHER

TOTAL
                    SUMMARY OF PHYTOPLANKTON DATA
                            COUNT
                              322
                              290
                              258
                              226
                              193
                              129
           7/28/75
GENERA
CHROOMONAS
OSCILLATORIA
OTHER
                             1418   TOTAL
                   9/ 5/75
COUNT   GENERA
  106   FHAGILARIA
   35   DINOBRYON
        CHROOMONAS
        CENTRIC DIATOM
        CRYPTOMONAS
    0   OTHER

  141   TOTAL
                                                          ( 9/  5/75)  P
                                                      COUNT
                                                       1107
                                                        420
                                                        191
                                                        153
                                                         38
                                                         38

                                                       1947
                                                                                                                                      00
                                                                                                                                      rvs
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
POINT SOURCE
INDUSTRIAL (KG/YRI
                                                            POINT SOURCE
                                                           SEPTIC TANKS (KG/YR)
PHOSPHORUS
NI TROGEN
B. OUTPUT


PHOSPHORUS
NITROGEN
V. NON-POINT-SOURCE
STREAM NAME

LOGAN CREEK
«««««««>»«

OUTLET(S)
(KG/YR)
2035.
170390.
NUTRIENT EXPORT
MEAN FLOW
(CMS)
3.620
4«a«-««eo4«
**(HJtt
PERCENT LAKE
RETENTION
25.
8.

DRAINAGE AREA
(SO KM)
437.2


SURFACE AREA
Q ft
80 .
LOADING RATE
(G/SO M/YR)
0.51
34.4

MEAN TOTAL
(MG/L)
0.018



p MEAN TOTAL N
(MG/L)
1.215
                                                NON-POINT  SOURCE
                                                       (KG/YR)
                                                        2730.
                                                      184530.
                                            TOTAL LOADING
                                                  (KG/YR)
                                                   2730.
                                                 184610.
                                                                                             TOTAL P EXPORT
                                                                                             (KG/SO KM/YR)
                                                                                                   5.
                                                                                                           TOTAL N EXPORT
                                                                                                           (KG/SO KM/YR)
                                                                                                                343.

-------
NAME       - TIBER RESERVOIR
COUNTY     - LIBERTY, TOOLE
STORET NO. - 3013
           COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN MONTANA

                   (MESO-EUTROPHIC)

           WORKING PAPER NO.  802, NTIS ACCESSION NO. PB-270 601/AB
I. MORPHOMETRY
                 LAKE TYPE
                 IMPOUNDMENT
                              DRAINAGE AREA
                                  (SO KM)
                               12760.90
                            SURFACE AREA
                              (SO KM)
                              50.59
                           MEAM DEPTH
                            (METEHS)
                             15.3
                        TOTAL INFLOW
                           (CMS)
                         28.170
                        RETENTION TIME
                            (DAYS)
                            318.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
          133.                402.
                         MEAN SECCHI DISC
                              (METERS)
                                1.3
                               MEDIAN
                            TOTAL P(MG/L)
                               0.018
                              MEDIAN
                           ORTHO P(MG/L>
                              0.004
                              MEDIAN
                           INORG N(MG/L)
                              0.180
                     MEDIAN
                  TOTAL NIMG/L)
                     0.430
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
           (UG/L)              (MG/L—DRY WT)
            2.8                  0.3 -   0.3  ( 2)
                                    LIMITING NUTRIENT AT SAMPLING TIME

                                    (  5/30/75) P AND N ( 7/25/75) P
                    SUMMARY OF PHYTOPLANKTON DATA
              5/30/75
   GENERA
   CHROOMONAS
   ANKISTRODESMUS
   SYNEDRA
   CRYPTOMONAS
   TRACHELOMONAS
   OTHER

   TOTAL
                                               7/25/75
         COUNT
           417
           179
            89
            30
            30
             0
GENERA
NITZSCHIA
FRAGILARIA
CHROOMONAS
SCHROEDERIA
CRYPTOMONAS
OTHER
                              745   TOTAL
        COUNT
         1390
          348
          139
          139
           70
           69

         2155
           9/ 9/75
GENERA
SYNEDRA
CHROOMONAS
OSCILLATORIA
                                                  OTHER
                                                                      TOTAL
                                                                           ( 9/ 9/7S) P  AND  N
COUNT
  214
  143
  107
                                                                                                 464
                                                                                                                   00
                                                                                                                   CO
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
        4390.
       18755.

     OUTLET(S)
     (KG/YR)
     13855.
    740560.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YH)
     PERCENT
    RETENTION
       57.
       58.
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)

                                   70.
                               NON-POINT SOURCE
                                     (KG/YR)
                                     27735.
                                   1730285.
                                   TOTAL LOADING
                                          (KG/YR)
                                         32125.
                                        1749110.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              0.64
              34.6
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    MARIAS RIVER                 27.180
    WILLOW CREEK                 0.383
                        DRAINAGE AREA
                           (SO KM)
                           9665.9
                           2177.2
                        MEAN TOTAL P
                           (MG/L)
                            0.017
                            0.140
                       MEAN TOTAL N
                          (MG/L)
                           1.427
                           1.874
                       TOTAL P EXPORT
                       (KG/SO KM/YR)
                             2.
                             2.
               TOTAL N EXPORT
               (KG/SO KM/YR)
                    167.
                     21.

-------
NAME
COUNTY
STOHET NO. - 3014

I. MORPHOMETRY
                   COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN MONTANA

- TONGUE RIVER RESERVOIR   (EUTROPHIC)
- BIG HORN
                   WORKING PAPER NO.  803t NTIS ACCESSION NO. P8-270 646/AB
                 LAKE TYPE

                 IMPOUNDMENT
                   DRAINAGE AREA
                      (SO KM)
                     4584.30
       SURFACE AREA
         (SO KM)
         14.15
MEAN DEPTH
 (METERS)
   6.1
TOTAL INFLOW
   (CHS)
 14.150
RETENTION TIME
    (DAYS)
     78.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
          199.                541.
                                 MEAN SECCHI DISC
                                      (METERS)
                                        0.7
                           MEDIAN
                        TOTAL P(MG/L)
                           0.051
                    MEDIAN
                 ORTHO PIMG/L)
                    0.008
                      MEDIAN
                    INORG  NIMG/L)
                      0.050
                       MEDIAN
                    TOTAL N(MG/L)
                       0.620
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
           16.9               »«»ooooooa
                                            LIMITING NUTRIENT AT SAMPLING TIME
                                            (  5/23/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              5/23/75
   GENERA
   CHROOMONAS
   EUGLENA
   CRYPTOMONAS
   STEPHANODISCUS
   ASTERIONELLA
   OTHER

   TOTAL
                                    8/29/75
                 COUNT   GENERA
                  2447   EUGLENA
                  1106   GLENODINIUM
                   804   CHROOMONAS
                   737   STIPITOCOCCUS
                   168   ASTERIONELLA
                   269   OTHER

                  5531   TOTAL
                     COUNT
                       946
                       908
                       870
                       416
                       378
                       794
                                                               ( 8/29/75) N
                 10/15/75
      GENERA
      STEPHANODISCUS
      CRYPTOMONAS
      FRAGILARIA
      CHROOMONAS
      NAVICULA
      OTHER
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    8. OUTPUT
     PHOSPHORUS
     NITROGEN
        POINT SOURCE
        MUNICIPAL  (KG/YR)
               14775.
               50200.

             OUTLET(S)
             (KG/YR)
             16490.
            618385.
                                        POINT SOURCE
                                        INDUSTRIAL (KG/YR)
                                         0000000000
                      4312   TOTAL
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                        oooooooooo
                        oooooooooo
                                                      (10/15/75*  P AND N
                 COUNT
                   670
                   591
                   552
                   197
                   118
                   354

                   2482
                                                                                              00
                                                                                              >£»
 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (G/SQ M/YR)
   88.                     9.44
    6.                     46.7
                     NON-POINT SOURCE
                            (KG/YR)
                           118755.
                           610205.
                            TOTAL LOADING
                                  (KG/YR)
                                 133530.
                                 660405.
V. NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLO*
                                 (CMS)
    TONGUE RIVER                 14.150
                                DRAINAGE AREA
                                   (SO KM)
                                   3825.4
                    MEAN TOTAL P
                       (MG/L)
                        0.192
             MEAN  TOTAL  N
                 (MG/L)
                  1.184
                TOTAL  P EXPORT
                (KG/SO KM/YR)
                    26.
                 TOTAL N EXPORT
                 (KG/S(1 KM/YR)
                      132.
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
    STREAM NAME

    DEER CREEK
    SQUIRREL CREEK
    YOUNGS CREEK
                   MEAN TOTAL P
                       (MG/L)
                       0.063
                       0.127
                       0.099
      MEAN TOTAL N
         (MG/L)
         1.399
         1.719
         1.430

-------
NAMF.       - WHITEFISH LAKE
COUNTY     - FLATHEAO
STORET NO. - 3016
                          COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES  IN  MONTANA

                                  (OLIGOTROPHIC)

                          WORKING PAPER NO.  804, NTIS ACCESSION NO. PB-270 637/AB
I. MORPHOMETRY
                 LAKE TYPE
                 NATURAL
                              DRAINAGE  AREA
                                  (SO KM)
                                  325.80
                                           SURFACE AREA
                                              (SO KM)
                                              13.56
                       MEAN DEPTH
                        (METERS)
                         32.9
                        TOTAL INFLOW
                           (CMS)
                          5.570
 RETENTION TIME
     (YEARS)
       2.5
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
           87.                106.
                                        MEAN SECCHI DISC
                                             (METERS)
                                               5.3
                           MEDIAN
                        TOTAL P(MG/L)
                           0.008
                              MEDIAN
                           ORTHO P(MG/L)
                              0.003
       MEDIAN
    INORG NIMG/L)
       0.040
      MEDIAN
   TOTAL NIMG/L)
      0.220
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            1.4                ooooooooao
                                                   LIMITING NUTRIENT  AT SAMPLING  TIME
                                                        (  6/  2/75)  N
                    SUMMARY OF PHYTOPLANKTON DATA
              6/ 2/75
   GENERA
   FRAGILARIA
   SYNEDRA
   STEPHANODISCUS
   ASTERIONELLA
   CHROOMONAS
   OTHER

   TOTAL
                                           7/28/75
                        COUNT   GENERA
                          259   FRAGILARIA
                          216   DINOBRYON
                           86   ASTERIONELLA
                           86   CRYPTOMONAS
                           86   SCENEDESMUS
                            2   OTHER

                          735   TOTAL
                     COUNT
                       524
                       489
                       105
                        70
                        70
                       174

                      1432
                                                                           (  7/28/75)  P
                           9/ 5/75
               .GENERA
                OIN08RYON
                SPHAEROCYSTIS
                SCHROEDERIA
                OTHER
                                                                      TOTAL
                                                                                              (  9/ 5/75)  P
  COUNT
    314
    140
     35
                                                                                                 489
                                                                               03
                                                                               cn
IV.
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGFN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                      0000000000
                                    POINT SOURCE
                                    INDUSTRIAL  (KG/YR)
                                     0000000000
                    OUTLET(S)
                    (KG/YR)
                     2580.
                    87710.
 PERCENT
RETENTION
   56.
   45.
                       POINT SOURCE
                      SEPTIC TANKS (KG/YR)
                               55.
                             2145.
                               NON-POINT SOURCE
                                      (KG/YR)
                                      5800.
                                    157215.
            TOTAL LOADING
                  
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                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEVADA
NAME       - LAHONTAN RESERVOIR       (F.UTROPHIC)
COUNTY     - CHURCHILL. LYON
STORET NO. - 3202             WORKING PAPER NO.  807, NTIS ACCESSION NO. PB-281 900/AB

I. MORPHOMETRY
                 LAKE TYPE

                 IMPOUNDMENT
       DRAINAGE  AREA
          (SO  KM)
         9375.80
       SURFACE AREA
         (SO KM)
         19.69
MEAN DEPTH
 (METEHS)
   6.7
TOTAL INFLOW
   (CMS)
 16.960
RETENTION TIME
    (DAYS)
     91.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
         MEDIAN             MEDIAN
    ALKALINITY(MG/L)    CONDUCT IVITY(UMHOS)
           86.                141.
                     MEAN  SECCHI  DISC
                          (METERS)
                            0.7
                           MEDIAN
                        TOTAL PIMG/L)
                           0.198
                    MEDIAN
                 ORTHO P(MG/L)
                    0.148
                      MEDIAN
                    INORG  NIMG/L)
                      0.350
                       MEDIAN
                    TOTAt  N(MG/L)
                      •»•*»*
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            4.6                 8.4 -  10.6 ( 2}
                                LIMITING  NUTRIENT  AT SAMPLING TIME

                                (  3/17/75)  N        ( 7/ 9/75) N
                    SUMMARY OF PHYTOPLANKTON DATA
              3/17/75
   GENERA
   CENTRIC DIATOM
   NITZSCHIA
   CHROOMONAS
   CHLAMYDOMONAS
   DACTYLOCOCCOPSIS
   OTHER

   TOTAL
                        7/  9/75
     COUNT    GENERA
       684    FRAGILARIA
       650    CHROOMONAS
       308    MELOSIRA
       171    ASTERIONELLA
        68    SCHROEDERIA
       103    OTHER

      1984    TOTAL
                                       ll/ 7/75
                     COUNT   GENERA
                      3646   NITZSCHIA
                       413   CENTRIC DIATOM
                       413   CHROOMONAS
                        69   NAVICULA
                        69   MELOSIRA
                         0   OTHER

                      4610   TOTAL
                                                      (ll/  7/75)  N
                                COUNT
                                  316
                                  158
                                  158
                                  158
                                  105
                                  264

                                 1159
                                                       00
                                                       C5
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                 POINT SOURCE
                 INDUSTRIAL (KG/YR)
 OUTLET(S)
 (KG/YR)
 97485.
749840.
                       HOINT SOURCE
                      SEPTIC TANKS 
                                5.
                              210.
                      NON-POINT SOURCE
                            (KG/YR)
                           187620.
                           854200.
                            TOTAL LOADING
                                  (KG/YR)
                                 187625.
                                 854410.
 PERCENT     LAKE SURFACE AREA LOADING RATE
RETENTION              (G/SQ M/YR)
   48.                     9.53
   12.                     43.4
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    CARSON RIVER                 12.410
    TRUCKEE CANAL                4.350
                    DRAINAGE AREA
                       (SO KM)
                       4229.5
                    MEAN TOTAL P
                       (MG/L)
                        0.284
                        0.233
              MEAN  TOTAL  N    TOTAL P EXPORT   TOTAL N EXPORT
                 (MG/L)        (KG/SO KM/YR)    (KG/SU KM/YR)
                  1.260             31.              130.
                  1.316      ««••••••••        •«•*•«•••«
VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGEO STREAMS
    STREAM NAME               MEAN TOTAL H    MEAN TOTAL N
                                  (MG/L)           (MG/L)
    UNNAMED CREEK Cl              0.438            2.500

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                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY  LAKES  IN  NEVADA

NAME       - LAKE MEAD                 (OLIGO-MESOTROPHIC)
COUNTY     - CLARK, NV; MOHAVE. AZ
STORET NO. - 3201             WORKING  PAPER NO.  808, NTIS  ACCESSION NO.  PB-       /AB

I. MORPHOMETRY

II.

LAKE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 434601.80
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCT IV I TY (UMHOS)
136. 815.
SURFACE AREA
(SQ KM)
592.88
MEAN SECCHI DISC
(METERS)
5.9
MEAN DEPTH
(METERS)
59.1
MEDIAN
TOTAL P(M6/L)
0.016
TOTAL INFLOW
(CMS)
377.340
MEDIAN
ORTHO P(MG/L)
0.005
RETENTION TIME
(YEARS)
3.5
MEDIAN
INORG NIMG/L)
0.340

MEDIAN
TOTAL N
0.550
III. BIOLOGICAL CHARACTERISTICS  (LAKE)
    MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
            (UG/L)              (MG/L—DRY WT)
            3.1                  0.1 -   0.7  ( 9)
                                                   LIMITING NUTRIENT AT SAMPLING TIME
                                                        (  2/24/75)  P
                    SUMMARY OF PHYTOPLANKTON DATA
              2/24/75
   GENERA
   CHROOMONAS
   CRYPTOMONAS
   TETRAEDRON
   OTHER

   TOTAL
                        COUNT
                          511
                           46
                           46
                            0

                          603
           6/11/75
GENERA
CHROOMONAS
RHOICOSPHENIA
OTHER

TOTAL
        COUNT
          110
           44
            0

          154
                                                                       ( 6/11/75) P
          11/20/75
GENERA
RAPHIDIOPSIS
CHROOMONAS
ANABAENOPSIS
CENTRIC DIATOM
CRYPTOMONAS
OTHER

TOTAL
ll/20/i

COUNT
1056
624
240
240
96
96
2352
r5) P (12/11/75) P
12/ 1/75
GENERA
CHROOHONAS
RAPHIDIOPSIS



OTHER
TOTAL


COUNT
170
43



0
213
CO
IV,
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
     PHOSPHORUS
     NITROGEN
    B. OUTPUT
     PHOSPHORUS
     NITROGEN
               POINT SOURCE
               MUNICIPAL (KG/YR)
                     322055.
                     9blb20.

                    OUTLET(S)
                    (KG/YR)
                   247325.
                 1199638b.
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
     PERCENT
    RETENTION
       93.
       55.
                           POINT SOURCE
                          SEPTIC TANKS  IKG/YR)
                                   10.
                                  375.
                               NON-POINT SOURCE
                                     (KG/YR)
                                   3370770.
                                  25918510.
                                   TOTAL LOADING
                                         (KG/YR)
                                       3692835.
                                      26880405.
LAKE SURFACE AREA LOADING RATE
          (G/SQ M/YR)
              6.23
              45.3
   NON-POINT-SOURCE NUTRIENT EXPORT
    STREAM NAME               MEAN FLOW
                                 (CMS)
    COLORADO RIVER              370.210
    MUDDY RIVER                   0.400
    VIRGIN RIVER                  4.820
DRAINAGE AREA
(SO KM)
378139.9
21238.0
15255.1
MEAN TOTAL P
(MG/L)
0.233
0.375
1.047
MEAN TOTAL N
(MG/L)
1.909
1.800
1.795
                                                                                        TOTAL P EXPORT
                                                                                        (KG/SO KM/YR)
                                                                                              8.
                                                                                             0.2
                                                                                             13.
                                                                          TOTAL  N EXPORT
                                                                          (KG/SQ KM/YR)
                                                                                64.
                                                                                 1.
                                                                                20.

-------
NAME
COUNTY
STORE! NO. - 320*

I. MOHPHOMETRY
                   COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEVADA

- RYE PATCH RESERVOIR      (EUTROPHIC)
- PERSHIMG
                   WORKING PAPER NO.  809, NTIS ACCESSION NO. PB-       /AB

II.
LAKE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 41699.00
PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCT IV IT Y (UMHOS)
349. 736.
SURFACE AREA
(SO KM)
46.14
MEAN SECCHI DISC
(METERS)
0.8
MEAN DEPTH TOTAL INFLOW RETENTION TIME
(METERS) (CMS) (YEARS)
4.6 7.170 1.2
MEDIAN MEDIAN MEDIAN
TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L)
0.095 0.039 0.050

MEDIAN
TOTAL N(MG/L)
0.620
III. BIOLOGICAL CHARACTERISTICS (LAKE)
    MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
           (UG/L)             (MG/L—DRY WT)
            4.9                 0.5 -   6.2 ( 4)
                    SUMMARY OF PHYTOPLANKTON DATA
              6/ 1/75
   GENERA
   CENTRIC DIATOM
   OTHER

   TOTAL
                                               7/11/75
                 COUNT
                    30
                     0

                    30
GENERA
CRYPTOMONAS
NITZSCHIA
OTHER

TOTAL
LIMITING NUTRIENT AT SAMPLING TIME

(  6/ 2/75)  N        ( 7/11/75) N


                        ll/ 7/75
      COUNT   GENERA
         34   CHROOMONAS
         34   SCHROEDERIA
              CHLAMYDOMONAS
              OOCYSTIS
              PANDORINA
          0   OTHER

         68   TOTAL
                                                                                   (ll/  7/75)  N
COUNT
  889
  727
  566
  242
  162
  162

 2748
oo
00
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL  (KG/YR)
                             POINT SOURCE
                             INDUSTRIAL  (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
PHOSPHORUS
NITROGEN
8. OUTPUT


PHOSPHORUS
NITROGEN
V. NON-POINT-SOURCE
STREAM NAME

HUM80LDT RIVER
PTTT-TAYI np niu


OUTLET(S)
(KG/YR)
27770.
201970.
NUTRIENT EXPORT
MEAN FLO*
(CMS)
6.610
. rANAi n.i<;n


PERCENT LAKE
RETENTION
49.
31.

DRAINAGE AREA
(SQ KM)
40663.0




SURFACE AREA LOADING RATE
(G/SU M/YR)
1.18
6.3

MEAN TOTAL P
(MG/L)
0.397
n . iem




MEAN TOTAL N
(MG/L)
1.372
J .^7A
                             NON-POINT  SOURCE
                                    (KG/YR)
                                    54495.
                                   291585.
          TOTAL  LOADING
                 (KG/YR)
                 54495.
               291585.
                                                                                             TOTAL P EXPORT
                                                                                             (KG/SO KM/YR)
                                                                                                   1.
                                                                                           ««»»»««»*«
                                                                                                   TOTAL N EXPORT
                                                                                                   (KG/SU KM/YR)
                                                                                                          6.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGaGED STREAMS
    STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                 (MG/L)           (MG/L)
    PITT TAYLOR RES. OUTLET      0.203            1.360

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                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEVADA
NAME - LAKE TAHOE 

    -------
    GRIFF CREEK                  0.03*           0.534
    EDGEHOOD CREEK               0.039           0.374
    HEAVENLY VALLEY CKEEK        0.034           0.980
    LONELY GULCH CREEK           0.020           0.870
                                                                                                                                     Cfi
                                                                                                                                     O
    

    -------
                                  COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN NEVADA
    NAME
    COUNTY
    STORET NO.
    - TOPAZ LAKE
    - OOUGLASt NV;
    - 3206
                (EUTROPHIC)
    MONO, CA
        WORKING PAPER NO.  811, NTIS ACCESSION NO. PB-
                                                                                       /AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
                       DRAINAGE AREA
                          (SO KM)
                         1080.00
                         SURFACE AREA
                           (SO KM)
                            9.71
                           MEAN DEPTH
                            (METERS)
                             15.8
    TOTAL INFLOW
       (CMS)
      6.810
    RETENTION TIME
        (DAYS)
        364.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)   CONDUCT IVITY(UMHOS)
               7*.                 99.
                                     MEAN SECCHI DISC
                                          (METERS)
                                            3.1
                                             MEDIAN
                                          TOTAL P(MG/L)
                                             0.058
                                               MEDIAN
                                            ORTHO P1MG/L)
                                               0.042
                          MEDIAN
                       INORG NIMG/L)
                          0.160
                          MEDIAN
                       TOTAL N(MG/L)
                          0.440
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                7.5                 6.4 -   8.3  ( 2)
                                                LIMITING NUTRIENT AT SAMPLING TIME
                                                            ( 3/19/75) N
                        SUMMARY OF PHYTOPLANKTON DATA
                  3/19/75
       GENERA
       CENTRIC DIATOM
       FRAGILARIA
       DICTYOSPHAERIUM
       MELOSIRA
       CHROOMONAS
       OTHER
    
       TOTAL
                                        6/30/75
                     COUNT   GENERA
                       198   FRAGILARIA
                       159   ASTFRIONELLA
                       119   CHROOMONAS
                       119   APHANIZOMENON
                        79   CRYPTOMONAS
                        39   OTHER
    
                       713   TOTAL
                                       COUNT
                                        5059
                                         670
                                         335
                                         274
                                          30
                                          32
                                                                               (  7/  1/75) N
                                            7/ 1/75
                                 GENERA
                                 FRAGILARIA
                                 APHANIZOMENON
                                 ASTERIONELLA
                                 CHROOMONAS
                                 MELOSIRA
                                 OTHER
    IV. NUTRIENT LOADING CHARACTEHISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                                 POINT SOURCE
                                 INDUSTRIAL  (KG/YR)
                 OUTLET(S)
                 (KG/YR)
                  6195.
                195470.
     PERCENT
    RETENTION
       53.
     LOSS
                                                                  6400    TOTAL
                                         POINT SOURCE
                                        SEPTIC TANKS  (KG/YR)
    
                                                 10.
                                                                                                  Ill/  5/75)  N
                                       ll/ 5/75
                     COUNT   GENERA
                      4766   CRYPTOMONAS
                       801   FRAGILARIA
                       521   STAURASTRUM
                       320   MELOSIRA
                       160   STEPHANODISCUS
                        80   OTHER
    
                      6648   TOTAL
                                       COUNT
                                         224
                                         112
                                         112
                                          56
                                          19
                                          37
    
                                         560
                                                NON-POINT SOURCE
                                                      (KG/YR)
                                                      13180.
                                                     125860.
                               TOTAL LOADING
                                     (KG/YR)
                                     13180.
                                    125870.
                               LAKE SURFACE AREA LOADING RATE
                                         (G/Stl M/YR)
                                             1.36
                                            13.0
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        UNNAMED CANAL fll             6.750
                                    DRAINAGE AREA
                                       (SO KM)
                                       1048.9
    VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGEO STREAMS
        STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                     (MG/L)           (MG/L)
        CALIFORNIA CREEK             0.115            0.900
        SLINKARD CREEK               0.123            0.715
                                      MEAN TOTAL P
                                         (MG/L)
                                          0.060
                                        MEAN TOTAL N
                                           (MG/L)
                                            0.506
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                        12.
                    TOTAL N EXPORT
                    (KG/SO KM/YR)
                         109.
    

    -------
    NAME
    COUNTY
    STORET NO. - 3207
    
    I. MORPHOMETRY
    - UPPER PAHRANAGAT
    - LINCOLN
    COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEVADA
    
            (EUTROPHIC)
    
    WORKING PAPER NO.  812. NTIS ACCESSION NO. P8-2B2 471/AB
                     LAKE TYPE
    
                     IMPOUNDMENT
                       DRAINAGE AREA
                          (SO KM)
                         6845.40
                     SURFACE AREA
                       (SO KM)
                        0.97
    MEAN DEPTH
     (METERS)
       0.6
    TOTAL INFLOW
       (CMS)
      0.260
    RETENTION TIME
        (DAYS)
         57.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)   CONDUCT IVITY(UMHOS)
              605.                775.
                                     MEAN SECCHI DISC
                                          (METERS)
                                            0.8
                                         MEDIAN
                                      TOTAL P(MG/L)
                                         0.173
                        MEDIAN
                     ORTHO PIMG/L)
                        0.026
                          MEDIAN
                        INORG NCMG/LI
                          0.125
                           MEDIAN
                        TOTAL  N(M6/L)
                           0.800
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)             (MG/L—DRY WT)
         »«««»*««««                      0,2
                                                LIMITING NUTRIENT AT SAMPLING TIME
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/ 6/75
       GENERA
       CHROOMONAS
       SCHROEDERIA
       CHYPTOMONAS
       ANKISTRODESMUS
       OUADRIGULA
       OTHER
    
       TOTAL
                                        8/21/75
                     COUNT   GENERA
                       425   MERISMOPEDIA
                       196   EUGLENA
                       163   CYCLOTELLA
                        65   PENNATE DIATOMS
                        65   PHACUS
                        34   OTHER
    
                       948   TOTAL
                                                (  5/ 6/75)  N
                                   COUNT
                                   37834
                                     946
                                     883
                                     568
                                     252
                                    1324
                                                                   ( 8/21/75) N
                    11/21/75
          GENERA
          PENNATE DIATOMS
          NAVICULA
          CHROOMONAS
          CYLINDROTHECA
          NITZSCHIA
          OTHER
                                   41807   TOTAL
                                                                    (11/21/75)  N
                     COUNT
                       899
                       623
                       254
                       231
                       231
                       436
    
                       2674
                                                                                                           (D
                                                                                                           ro
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                                 POINT SOURCE
                                 INDUSTRIAL (KG/YR)
                                     POINT SOURCE
                                    SEPTIC TANKS (KG/YR)
    PHOSPHORUS
    N I TROGEN
    B. OUTPUT
    
    
    PHOSPHORUS
    NITROGEN
    V. NON-POINT-SOURCE
    STREAM NAME
    
    WHITE RIVER Rl
    
    
    OUTLET(S)
    (KG/YR)
    360.
    5525.
    NUTRIENT EXPORT
    MEAN FLOW
    (CMS)
    0.220
    oooooooooo
    
    PERCENT LAKE
    RETENTION
    72.
    51.
    
    DRAINAGE AREA
    (SO KM)
    6765.1
    
    
    
    
    SURFACE AREA LOADING RATE
    (G/SQ M/YR)
    1.30
    11.6
    
    MEAN TOTAL P
    (MG/L)
    0.150
    
    
    
    
    MEAN TOTAL N
    (MG/L)
    1.402
                         NON-POINT  SOURCE
                                (KG/YR)
                                 1265.
                                11295.
                                TOTAL LOADING
                                      (KG/YR)
                                       1265.
                                      11295.
                                                                                                 TOTAL  P EXPORT
                                                                                                 (KG/SO KM/YR)
                                                                                                      0.1
                                                                                                       TOTAL N EXPORT
                                                                                                       (KG/SO KM/YR)
                                                                                                              1.
    

    -------
    NAME       - WALKER LAKE
    COUNTY     - MINERAL
    STORE! NO. - 3311
                                  COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEVADA
    
                                          (EUTROPHIC)
    
                                  WORKING PAPER NO.  813. NTIS ACCESSION NO. PB-282 339/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
                                  DRAINAGE AREA
                                     (SO KM)
    SURFACE AREA
      (SO KM)
     153.78
    MEAN DEPTH
     (METERS)
      24.1
    TOTAL INFLOW
       (CMS)
    RETENTION TIME
        (YEARS)
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)   CONDUCTIVITY(UMHOS)
             3760.               7094.
                                                MEAN SECCHI DISC
                                                     (METERS)
                                                       2.4
                        MEDIAN
                     TOTAL PIMG/L)
                        0.601
                        MEDIAN
                     ORTHO P(MG/L)
                        0.574
                          MEDIAN
                       INORG N(MG/L)
                          0.080
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY WT)
                3.4                o»««o«*«
                                                           LIMITING NUTRIENT AT SAMPLING TIME
                        SUMMARY OF PHYTOPLANKTON DATA
                  3/17/75
       GENERA
       PENNATE DIATOMS
       CHROOMONAS
       TETRAEDRON
       OTHER
    
       TOTAL
                                                    7/  9/75
    COUNT
    27
    16
    5
    0
    48
    GENERA
    CHROOCOCCUS
    
    
    OTHER
    TOTAL
                                                           ( 3/17/75) N
                                                                 COUNT
                                                                    19
                                                                     0
    
                                                                    19
                                                                               ( 7/11/75) N
                                                                                    ll/ 6/75
                          GENERA
                          NAVICULA
                          OTHER
    
                          TOTAL
                                                                                                  (ll/  6/75)  N
                                   COUNT
                                       6
                          MEDIAN
                       TOTAL N(MG/L)
                          2.020
    IV.
        NUTRIENT LOADING CHARACTERISTICS (LAKE)
        A.  INPUT
                       POINT  SOURCE
                       MUNICIPAL  (KG/YR)
                                            POINT SOURCE
                                            INDUSTRIAL (KG/YR)
    PHOSPHORUS
    B. OUTPUT
    M T TunrcrN
    
    OUTLET (S)
    (KG/YR)
    
    
    PERCENT
    RETENTION
    e»ee«
                    POINT SOURCE
                   SEPTIC TANKS  (KG/YR)
                         NON-POINT SOURCE
                                (KG/YR)
                                                          LAKE SURFACE  AREA LOADING RATE
                                                                    (G/SQ M/YR)
                               TOTAL  LOADING
                                      (KG/YH)
                                 ««««««•»*»
                                            «»«»  LAKE  SAMPLING ONLY
    

    -------
    NAME       - WASHOE LAKE
    COUNTY     - WASHOE
    STORET NO. - 3808
          COMPENDIUM  OF  NATIONAL  EUTROPHICATION  SURVEY  LAKES IN NEVADA
    
                  (EUTROPHIC)
    
          WORKING PAPER  NO.   814,  NTIS  ACCESSION NO.  PB-282 432/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
          DRAINAGE AREA
             (SO  KM)
             215.00
           SURFACE  AREA
             (SO  KM)
             16.59
    MEAN DEPTH
     (METERS)
       1.5
    TOTAL INFLOW
       (CMS)
      0.870
    RETENTION TIME
        (YEARS)
          5.7
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
              359.                445.
                        MEAN  SECCHI  DISC
                             (METERS)
                               0.0
                               MEDIAN
                            TOTAL PIMG/L)
                               0.403
                        MEDIAN
                     OHTHO P(MG/L>
                        0.268
                           MEDIAN
                        INORG  NIMG/L)
                           0.130
                           MEDIAN
                        TOTAL N(MGXL)
                           1.340
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)             (MG/L—DRY WT)
               11.6                      4.4
                                   LIMITING NUTRIENT AT SAMPLING TIME
                                   (  3/17/75)  N
                                                      (  6/27/75) N
                        SUMMARY OF PHYTOPLANKTON DATA
       GENERA
       MELOSIRA
       CHHOOMONAS
       CRYPTOMONAS
       RHOPALODIA
    
       OTHER
    
       TOTAL
                  3/17/75
                                                   6/27/75
    COUNT
    671
    79
    79
    79
    
    0
    GENERA
    MELOSIRA
    CRYPTOMONAS
    EUGLENA
    RHOPALODIA
    FRAG1LAPIA
    OTHER
                                  908
                                        TOTAL
                                         COUNT
                                           859
                                           136
                                           136
                                           136
                                            90
                                           315
    
                                          1672
                                 GENERA
                                 MELOSIRA
                                 EPITHEMIA
                                 FRAGILARIA
                                 STAURONEIS
                                 SURIRELLA
                                 OTHER
    
                                 TOTAL
                                                                                   11/11/75
                                                          (11/10/75)  N
                                    COUNT
                                     1111
                                      115
                                      115
                                       77
                                       38
                                      229
    
                                     1685
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                    POINT SOURCE
                    INDUSTRIAL (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
    OUTLET (S)
    (KG/YR)
     1770.
     8875.
     PERCENT     LAKE SURFACE AREA LOADING RATE
    RETENTION              (G/SQ M/YR)
     LOSS                     0.10
       74.                      2.1
                          NON-POINT SOURCE
                                (KG/YR)
                                 1735.
                                34770.
                                TOTAL LOADING
                                      (KG/YR)
                                       1735.
                                      34770.
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        OPHIR CREEK                  0.130
        FRANKTOWN CREEK              0.240
        WINTERS CREEK                0.020
                       DRAINAGE AREA
                          (SO KM)
                            16.8
                            39.6
                             4.7
                        MEAN TOTAL P
                           (MG/L)
                            0.035
                            0.046
                            0.034
                 MEAN  TOTAL  N
                     (MG/L)
                     0.402
                     0.617
                     0.555
                    TOTAL P EXPORT
                    (KG/SO KM/YR)
                          8.
                          8.
                          4.
                     TOTAL N EXPORT
                     (KG/SO KM/YR)
                          115.
                           66.
                           79.
    VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGEl) STREAMS
        STREAM NAME
    
        GALENA CREEK
        JONES CREEK
          MEAN TOTAL P
             (MG/L)
             0.029
             0.024
          MEAN TOTAL N
             (MG/L)
             0.376
             0.497
    

    -------
    NAME       - WILD HOrtSE RESERVOIR
    COUNTY     - ELKO
    STORET NO. - 3209             WORKING PAPER NO.
          COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES IN NEVADA
    
                  (EUTROPHIC)
    
                                  NTIS ACCESSION NO. PB-282 427/A8
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
          DRAINAGE AREA
             (SO KM)
             5*1.30
    SURFACE AREA
      (SO KM)
      12.14
                           MEAN DEPTH
                            (METERS)
                              7.3
                            TOTAL INFLOW
                               (CMS)
                              1.210
                            RETENTION TIME
                                 (YEARS)
                                  2.4
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
               76.                100.
                        MEAN SECCHI DISC
                             (METERS)
                               0.3
                               MEDIAN
                            TOTAL P(MG/L)
                               0.114
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.065
                                  MEDIAN
                               INORG N(MG/L)
                                  0.320
                                                                         MEDIAN
                                                                      TOTAL N(MG/L)
                                                                         0.920
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
               75.5                 7.7 -   15.4  ( 3)
                                   LIMITING NUTRIENT AT SAMPLING TIME
                                                            (  5/30/75)  N
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/30/75
       GENERA
       CENTRIC DIATOM
       FRAGILARIA
       CRYPTOMONAS
       PHORMIDIUM
       LYN13BYA
       OTHER
    
       TOTAL
                           8/ 1/75
        COUNT   GENERA
         8958   GLOEOTRICHIA
          444   FRAGILARIA
          121   APHANIZOMENON
          121   APHANOTHECE
           81   COCCONEIS
           80   OTHER
    
         9805   TOTAL
            COUNT
              541
              496
              270
               90
               90
              225
                                                       ( 8/ 1/75) N
              ll/ 6/75
    GENERA
    CHROOMONAS
    APHANIZOMENON
    TRACHELOMONAS
    SCHROEDERIA
    
    OTHER
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGFN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
    OUTLET(S)
    (KG/YR)
    10415.
    61640.
                    POINT SOURCE
                    INDUSTRIAL (KG/YR)
                          1712   TOTAL
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
                                                                          (ll/  6/75)  N
                                                          COUNT
                                                             196
                                                             33
                                                             33
                                                             33
                                                                                                     295
     PERCENT
    RETENTION
     LOSS
       54.
                                   NON-POINT SOURCE
                                         (KG/YR)
                                          7985.
                                        133465.
                                       TOTAL LOADING
                                              (KG/YR)
                                               7985.
                                            133465.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/VR)
                 0.66
                  11.0
    V. NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        OWYHEE RIVER                 0.540
        DEEP CREEK                   0.200
                       DRAINAGE AREA
                          (SU KM)
                           145.0
                            42.5
                        MEAN TOTAL P
                           (MG/L)
                            0.157
                            O.OU6
                           MEAN TOTAL N
                              (MG/L)
                               1.317
                               1.271
                           TOTAL P EXPORT
                           (KG/SO KM/YH)
                                17.
                                12.
                                                                   TOTAL N EXPORT
                                                                   (Kli/SQ KM/YR)
                                                                        256.
                                                                        183.
    VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGA6ED STREAMS
        STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                      (MG/L)           (MG/L)
        PENROO CREEK                  0.087            1.000
    

    -------
    NAME
    COUNTY
    STORET NO. - 3210
    
    I. MORPHOMETRY
    - WILSON RESERVOIK
    - ELKO
    COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEVADA
    
            (EUTROPHIC)
                       WORKING PAPER NO.   ai6»  NTIS ACCESSION NO. PB-
                                                                                       /AB
                     LAKE TYPE
    
                     IMPOUNDMENT
                       DRAINAGE AREA
                          (SO KM)
                          240.90
                     SURFACE AREA
                       (SO KM)
                        3.35
    MEAN DEPTH
     (METERS)
       3.9
    TOTAL INFLOW
       (CMS)
      0.270
    RETENTION TIME
        (YEARS)
          5.1
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
               72.                 96.
                                     MEAN SECCHI DISC
                                          (METEHS)
                                            7.7
                                         MEDIAN
                                      TOTAL P(MG/L)
                                         0.049
                        MEDIAN
                     ORTHO PIM6/L)
                        0.016
                           MEDIAN
                        INORG  NIMG/L)
                           0.120
                           MEDIAN
                        TOTAL  N(MG/L)
                           0.520
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)             (MG/L—DRY WT)
               10.0                 1.6 -  10.0 ( 2)
                                                LIMITING NUTRIENT AT SAMPLING TIME
    
                                                (  6/ 1/75)  N       ( 8/ 1/75) N
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/31/75
       GENERA
       CRYPTOMONAS
       CHROOMONAS
       NITZSCHIA
       SYNEDRA
    
       OTHER
    
       TOTAL
    
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
                                                   fl/ 1/75
    COUNT
    1609
    623
    260
    52
    0
    2544
    GENERA
    FLAGELLATES
    GYMNODINIUM
    TETRAEORON
    SCENEOESMUS
    OTHER
    TOTAL
                                                                        ll/ 6/75
                                                      COUNT   GENERA
                                                        210   PENNATE DIATOMS
                                                         8*   FRAGILARIA
                                                         42   CHROOMONAS
                                                         42   APHANIZOMENON
                                                              EPITHEMIA
                                                          0   OTHER
    
                                                        378   TOTAL
                                                                    (ll/  6/75)  N
                                                                     COUNT
                                                                       446
                                                                       377
                                                                       343
                                                                       137
                                                                        69
                                                                       207
    
                                                                      1579
                                                                         CO
                                                                         C5
        A. INPUT
                       POINT SOURCE
                       MUNICIPAL (KG/YR)
                                 POINT SOURCE
                                 INDUSTRIAL (KG/YR)
                                     POINT SOURCE
                                    SEPTIC TANKS (KG/YR)
    PHOSPHORUS
    N I TROGEN
    B. OUTPUT
    
    
    PHOSPHORUS
    NITROGEN
    NON-POINT-SOURCE
    STREAM NAME
    
    WILSON CREEK
    
    
    OUTLET(S)
    (KG/YR)
    700.
    15490.
    NUTRIENT EXPORT
    MEAN FLOW
    (CMS)
    0.260
    
    
    PERCENT LAKE
    RETENTION
    0.
    LOSS
    
    DRAINAGE AREA
    (SO KM)
    208.8
    1 1\
    1U.
    SURFACE AREA LOADING
    (G/SO M/YR)
    0.21
    3.1
    
    
    
    RATE
    
    
    
    
    MEAN TOTAL P MEAN TOTAL N
    (MG/L)
    0.227
    (MG/L)
    1.680
                         NON-POINT  SOURCE
                                (KG/YR)
                                  700.
                                10510.
                                TOTAL LOADING
                                      (KG/YR)
                                        700.
                                      10520.
                                                                                                 TOTAL  P EXPORT
                                                                                                 (KG/SO KM/YR)
                                                                                                       3.
                                                                                                       TOTAL N EXPORT
                                                                                                       (KG/SO KM/YR)
                                                                                                             29.
    vi
        MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
        STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                     (MG/L)           (MG/L)
        COLUMBIA CREEK               0.063            0.600
        BULL CREEK                   0.096            0.924
    

    -------
                                  COMPENDIUM OF NATIONAL EUTROPMICATION  SURVEY  LAKES  IN  NEW  MEXICO
    
    NAME       - ALAMOGORDO RESERVOIR      (EUTROPHIC)
    COUNTY     - DE 8ACA. GUAOALUPE
    STORET NO. - 3501             WORKING  PAPER NO.  817, NTIS  ACCESSION NO.  PB-278 517/AB
    I. MORPriOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
               DRAINAGE AREA
                  (SO KM)
                11370.10
           SURFACE AREA
             (SO KM)
             18.49
              MEAN DEPTH
               (METERS)
                 8.1
    TOTAL INFLOW
       (CMS)
      2.770
    RETENTION TIME
        (YEARS)
          1.7
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
              108.                1959.
                             MEAN SECCHI DISC
                                  (METERS)
                                    0.8
                               MEDIAN
                            TOTAL P(MG/L)
                               0.025
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.003
                          MEDIAN
                       INORG N(M6/L)
                          O.OSO
                          MEDIAN
                       TOTAL N(MG/L)
                          0.320
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY WT)
                5.9                      0.4
                                        LIMITING NUTRIENT AT SAMPLING TIME
    
                                        ( 5/ 1/75) N        ( 8/20/75) P
                                                          (10/ 2/75) P
                        SUMMARY OF PHYTOPLANKTON  DATA
                  5/  l/7b
       GENERA
       CHROOMONAS
       ANKISTRODESMUS
       RAPHIDIOPSIS
       CftYPTOMONAS
    
       OTHER
    
       TOTAL
                                8/20/75
             COUNT   GENERA
               759   RAPHIDIOPSIS
               715   NITZSCHIA
               223   OSCILLATORIA
                40   OOCYSTIS
                     CRYPTOMONAS
                 0   OTHER
    
              1737   TOTAL
                                           10/ 2/75
                         COUNT   GENERA                   COUNT
                           395   CHROOMONAS                 979
                           395   FLAGELLATES                793
                           346   DACTYLOCOCCOPSIS           746
                           197   ANACYSTIS(MICROCYSTIS)     746
                           148   MERISMOPEDIA               670
                           840   OTHER                     2828
    
                          2321   TOTAL                     6762
                                                                                   CO
                                                                                   •vl
     IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A.  INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
            2625.
            9920.
    
         OUTLET(S)
         (KG/YR)
          3580.
         68495.
                                             POINT  SOURCE
                                             INDUSTRIAL  (KG/YR)
     PERCENT
    RETENTION
       87.
       42.
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
                                   20.
                                  800.
                                   NON-POINT SOURCE
                                         (KG/YR)
                                         25415.
                                        106885.
                               TOTAL LOADING
                                      (KG/YR)
                                     28060.
                                     117605.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
                  1.52
                   6.4
       NON-POINT-SOURCE NUTRIENT  EXPORT
        STREAM NAME                MEAN FLOW
                                     (CMS)
        PECOS RIVER                   2.540
                            DRAINAGE AREA
                               (SO KM)
                              10282.3
                        MEAN TOTAL P
                           (MG/L)
                            0.292
                           MEAN TOTAL N
                              (MG/L)
                               1.067
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                         2.
                    TOTAL N EXPORT
                    (KG/SQ KM/YR)
                           6.
    

    -------
    NAME
    COUNTY
    STORET NO. - 3502
    
    I. MORPHOMETRY
                       COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEW MEXICO
    
    - BLUEWATER LAKE           (MESO-EUTROPHIC)
    - MCKINLEY. VALENCIA
                       WORKING PAPER NO.  816. NTIS ACCESSION NO. PB-278 497/AB
                     LAKE TYPE
    
                     IMPOUNDMENT
                       DRAINAGE AREA
                          (SO KM)
                          520.60
           SURFACE  AREA
             (SO  KM)
              7.07
              MEAN DEPTH
               (METERS)
                 6.7
                                                                                 TOTAL  INFLOW
                                                                                    (CMS)
                                                                                   0.260
    RETENTION TIME
        (YEARS)
          5.8
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MGXL)   CONDUCTIVITY(UMHOS)
              126.                349.
                                     MEAN SECCHI DISC
                                          (METERS)
                                            0.5
                               MEDIAN
                            TOTAL PIMG/L)
                               0.036
                                  MEDIAN
                               ORTHO PIMG/L)
                                  0.012
                                                                                                       MEDIAN
                                                                                                    INORG N(MG/L)
                                                                                                       0.140
                           MEDIAN
                        TOTAL  N
                           0.700
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)             (MG/L—DRY WT)
                3.9                 0.2 -   1.2 ( 2)
                                                LIMITING NUTHIENT AT SAMPLING TIME
                                                (  5/ 5/75)  N
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/ 5/75
       GENERA
       FLAGELLATES
       CYCLOTELLA
       CHHOOMONAS
       SCHROEDERIA
       CHLAMYDOMONAS
       OTHER
    
       TOTAL
                                        8/19/75
                     COUNT   GENERA
                       570   APHANIZOMENON
                       342   CHLAMYDOMONAS
                       171   CHROOMONAS
                       171   CRYPTOMONAS
                       114   CYCLOTELLA
                       229   OTHER
    
                      1597   TOTAL
                                                                 COUNT
                                                                  1213
                                                                   152
                                                                   152
                                                                   114
                                                                    76
                                                                    74
    
                                                                  1781
                                                                   ( 8/19/75) N
                                           10/ 1/75
                                 GENERA
                                 CHROOMONAS
                                 APHANIZOMENON
                                 CRYPTOMONAS
                    OTHER
    
                    TOTAL
                                                                                       (10/  1/75)  P
                                             COUNT
                                               432
                                               351
                                                54
         0
    
       837
                                                                                                 CD
                                                                                                 00
    IV.  NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
                       POINT  SOURCE
                       MUNICIPAL (KG/YR)
         PHOSPHORUS       »«««««»«««
         NITROGEN         «*««»«««»«
                                            POINT SOURCE
                                            INDUSTRIAL (KG/YR)
                                                        POINT SOURCE
                                                       SEPTIC TANKS  (KG/YR)
                                                         ««»«*««»««
                                                                45.
                                                NON-POINT SOURCE
                                                       (KG/YR)
                                                        590.
                                                       14620.
                                                        TOTAL LOADING
                                                              (KG/YR)
                                                                590.
                                                              14665.
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
                 OUTLET(S)
                 (KG/YR)
                   475.
                  9350.
     PERCENT
    RETENTION
       19.
       36.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
                  0.08
                   2.1
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        BLUEWATER CREEK              0.090
        COTTONWOOD CREEK             0.090
        UNNAMED STREAM  (CD          0.010
                                    DRAINAGE AREA
                                       (SO KM)
                                        195.3
                                        167.8
                                         15.8
                        MEAN TOTAL P
                           (MG/L)
                            0.040
                            0.092
                            0.040
                           MEAN TOTAL N
                               (MG/L)
                               0.748
                               0.995
                               0.996
                                                                                                TOTAL P EXPORT
                                                                                                (KG/SO KM/YR)
                                                                                                     0.6
                                                                                                      1.
                                                                                                     0.6
                     TOTAL N EXPORT
                     (KG/SQ KM/YR)
                           11.
                           15.
                           17.
    

    -------
    NAME
    COUNTY
    STORET NO.
    - CONCHAS RESERVOIR
    - SAN MIGUEL
    - 3503
    COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN NEW MEXICO
    
            (MESOTROPHIC)
    
    WORKING PAPER NO.  819. NTIS ACCESSION NO. PB-278 540/AB
    I. MORPHOMETRY
    II.
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY WT>
                3.3                  0.1 -   0.*  (  3)
    LAKE TYPE DRAINAGE AREA
    (SO KM)
    IMPOUNDMENT 19189.30
    PHYSICAL AND CHEMICAL CHARACTERISTICS
    MEDIAN MEDIAN
    ALKALINITY (MG/L) CONDUCT IV ITY (UMHOS)
    152. 751.
    SURFACE AREA
    (SO KM)
    38.83
    MEAN SECCHI DISC
    (METERS)
    1.2
    MEAN DEPTH TOTAL INFLOW RETENTION TIME
    (METERS) (CMS) (YEAHS)
    11.8 4.760 3.0
    MEDIAN MEDIAN MEDIAN
    TOTAL P(MG/L) ORTHO PfMG/L) INORG N(MG/L)
    0.020 0.004 0.040
    
    MEDIAN
    TOTAL N(MG/L>
    0.350
                                                LIMITING NUTRIENT  AT  SAMPLING  TIME
                                                 I 5/  1/75) N
                        SUMMARY OF PHYTOPLANKTON  DATA
                  5/  1/75
       GENERA
       CHROOMONAS
       ANKISTRODESMUS
       OOCYSTIS
       ASTERIONELLA
    
       OTHER
    
       TOTAL
                                        8/21/75
                     COUNT   GENERA
                       915   CHROOMONAS
                       335   OOCYSTIS
                       134   ANKISTRODESMUS
                        45   OSCILLATORIA
                             CRYPTOMONAS
                         0   OTHER
    
                      1429   TOTAL
                                   COUNT
                                     402
                                     183
                                     110
                                      73
                                      37
                                      72
    
                                     877
                                                                    (  8/21/75)  N
                              10/ 2/75
                    GENERA
                    CHROOMONAS
                    CRYPTOMONAS
                    TRACHELOMONAS
                    SCENEDESMUS
                    ANKISTRODESMUS
                    OTHER
    
                    TOTAL
                                                                                       (10/ 2/75)  P
      COUNT
        118
         59
         29
         29
         29
         30
    
        294
                           CO
                           CO
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                                 POINT SOURCE
                                 INDUSTRIAL  (KG/YR)
                 OUTLET(S)
                 (KG/YR)
                   690.
                624795.
               PERCENT
              RETENTION
                 94.
               LOSS
                                     POINT SOURCE
                                    SEPTIC TANKS  (KG/YR)
                                             40.
                                           1520.
                                   NON-POINT SOURCE
                                          (KG/YR)
                                          11410.
                                        179890.
                TOTAL LOADING
                      (KG/YR)
                      11450.
                     181410.
    LAKE SURFACE AREA LOADING RATE
              (G/Sd M/YR)
                  0.29
                  4.7
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        CANADIAN RIVER               3.840
        CONCHAS RIVER                0.400
                                    DRAINAGE AREA
                                        (SO KM)
                                      15578.6
                                        1354.6
                                  MEAN TOTAL P
                                      (MG/L)
                                      0.084
                                      0.010
                           MEAN TOTAL N
                              (MG/L)
                               0.847
                               0.807
    TOTAL P EXPORT
    (KG/SO KM/YR)
         0.6
         0.1
    TOTAL N EXPORT
    (KG/SU KM/YH)
           7.
          12.
    VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
        STREAM NAME               MEAN TOTAL P     MEAN TOTAL  N
                                      (MG/L)           (MG/L)
        CONCHAS CANAL                 0.019            0.683
        THEMENTINA CREEK              0.420            2.020
    

    -------
    NAME       - EAGLE NEST LAKE
    COUNTY     - COLFAX
    STORET NO. - 3504
                              COMPENDIUM OF  NATIONAL  EUTROPHICATION SURVEY  LAKES  IN NEK MEXICO
    
                                      (EUTROPHIC)
    
                              WORKING  PAPER  NO.   820. NTIS  ACCESSION NO.  PB-278 548/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
                              DRAINAGE  APEA
                                 (SO  KM)
                                 433.50
           SURFACE  AREA
             (SQ KM)
              9.82
              MEAN  DEPTH
               (METERS)
                 9.9
    TOTAL INFLOW
       (CMS)
      0.580
    RETENTION TIME
        (YEARS)
          5.3
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)    CONDUCT IVITY(UMHOS)
              149.                275.
                                            MEAN  SECCHI  DISC
                                                 (METERS)
                                                   1.1
                               MEDIAN
                            TOTAL  P(MG/L)
                               0.181
                                  MEDIAN
                               ORTHO PIMG/L)
                                  0.132
                          MEDIAN
                        INORG N(MG/L)
                          0.070
                           MEDIAN
                        TOTAL  NIMG/L)
                           0.520
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
               13.4                 2.0 -  14.0 ( 2)
                                                       LIMITING  NUTRIENT  AT  SAMPLING TIME
                                                       (  5/  6/75)  N
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/ 6/75
       GENERA
       CRYPTOMONAS
       CHROOMONAS
       OTHER
    
       TOTAL
                                               8/21/75
                            COUNT    GENERA
                             3042    APHANIZOMENON
                             1703    CHROOMONAS
                                    STEPHANOOISCUS
                                    CRYPTOMONAS
                                    SCHROEDERIA
                                0    OTHER
    
                             4745    TOTAL
                         COUNT
                           389
                           130
                            32
                            32
                            32
                            66
    
                           681
                                                                          (  8/21/75)  N
                              10/ 7/75
                    GENERA
                    APHANIZOMENON
                    CHROOMONAS
                    OSCILLATORIA
                    CRYPTOMONAS
                    SCHROEOERIA
                    OTHER
    
                    TOTAL
                                                          (10/ 7/75) N
                     COUNT
                      3639
                      1178
                       659
                       173
                         35
                          0
    
                      5684
    IV,
    NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
         PHOSPHORUS
         NITROGEN
        6. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL (KG/YR)
                                        POINT SOURCE
                                        INDUSTRIAL (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
                        OUTLET(S)
                        (KG/YR)
                         3120.
                        32270.
     PERCENT
    RETENTION
     LOSS
       24.
                                                                       65.
                                   NON-POINT SOURCE
                                          (KG/YR)
                                          2630.
                                          42210.
                                TOTAL LOADING
                                      
                                       2630.
                                      42275.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
                 0.27
                   4.3
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        MORENO CREEK                 0.220
        SIXMILE CREEK                0.070
        CIENEGUILLA CREEK            0.200
                                           DRAINAGE AREA
                                              (SQ KM)
                                               191.1
                                                27.2
                                               145.0
                        MEAN TOTAL P
                           (MG/L)
                            0.152
                            0.077
                            0.152
                           MEAN TOTAL N
                              (MG/L)
                               1.444
                               1.219
                               1.691
                    TOTAL P EXPORT
                    (KG/SO KM/YR)
                          7.
                          7.
                          5.
                     TOTAL N EXPORT
                     (KG/SO KM/YR)
                           68.
                          110.
                           73.
    

    -------
                                  COMPENDIUM OF NATIONAL  EUTROPHICATION SURVEY LAKES IN NEW MEXICO
    NAME       - ELEPHANT BUTTE RESERVOIR  (EUTROPHIC)
    COUNTY     - SIERRA« SOCORRO
    STORET NO. - 3505             WORKING  PAPER NO.   821.  NTIS  ACCESSION NO.  PB-278 498/AB
       MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
               DRAINAGE AREA
                  (SO KM)
                76375.40
           SURFACE AREA
             (SO KM)
            148.05
              MEAN DEPTH
               (METERS)
                18.3
    TOTAL INFLOW
       (CMS)
     38.310
    RETENTION TIME
        (YEARS)
          2.2
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
              133.                 600.
                             MEAN SECCHI DISC
                                  (METERS)
                                    0.6
                               MEDIAN
                            TOTAL PIMG/L)
                               0.083
                                  MEDIAN
                               ORTHO PfMG/L)
                                  0.052
                          MEDIAN
                       INOR6 NIMG/L)
                          0.110
                          MEDIAN
                       TOTAL N(MG/L)
                          0.440
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL  A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                6.8                  2.4  -   10.6  (  2)
                                        LIMITING NUTRIENT AT SAMPLING  TIME
    
                                        ( 5/ 2/75) N        ( 8/19/75)  N
                        SUMMARY OF PHYTOPLANKTON  DATA
                  5/ 2/75                           8/19/75
       GENERA                   COUNT   GENERA
       STEPHANODISCUS             722   STEPHANODISCUS
       CHROQMONAS                 611   CARTEKIA
       COELASTRUM                  56   CHROOMONAS
       ANKISTRODESMUS              56   ANACYSTIS(MICROCYSTIS)
                                        SCHROEDERIA
       OTHER                         0   OTHER
                                              COUNT
                                                437
                                                328
                                                273
                                                109
                                                109
                                                300
                                           10/ 3/75
                                 GENERA
                                 PENNATE DIATOMS
                                 CHROOMONAS
                                                      OTHER
       TOTAL
                                  1445
                                         TOTAL
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A.  INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
          540360.
         1440480.
    
         OUTLET(S)
         (KG/YR)
         83595.
       1141900.
                                             POINT  SOURCE
                                             INDUSTRIAL  (KG/YR)
     IHHHUKKHHtO
    
    
     PERCFNT
    RETENTION
       97.
       84.
                                                                   1556   TOTAL
                           POINT SOURCE
                          SEPTIC TANKS  (KG/YR)
                                    5.
                                  150.
                                                          (10/ 3/75)  N
                                             COUNT
                                                41
                                                21
                                                                                                      62
                                   NON-POINT SOURCE
                                         (KG/YR)
                                       2028905.
                                       5804095.
                               TOTAL LOADING
                                      (KG/YH)
                                   2569270.
                                   7244725.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                 17.35
                  48.9
    V. NON-POINT-SOURCE NUTRIENT  EXPORT
        STREAM NAME                MEAN FLOW
                                     (CMS)
        RIO GRANOE                   37.070
        UNNAMED TRIBUTARY  (Cl)        0.010
        UNNAMED STREAM  (El)           0.010
                            DRAINAGE AREA
                               (SO KM)
                              71742.9
                                  5.7
                                 41.3
                        MEAN TOTAL P
                           (MG/L)
                            1.902
                            0.028
                            0.013
                           MEAN TOTAL N
                              (MG/L)
                               5.690
                               0.541
                               0.744
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                        28.
                        18.
                        0.1
                    TOTAL N EXPORT
                    (Kti/SQ KM/YR)
                          78.
                         757.
                           6.
    VI. MEAN NUTRIENT CONCENTKATIONS  IN  UNGAGED  STREAMS
        STREAM NAME                MEAN TOTAL  P     MEAN TOTAL  N
                                      (MG/L)           (MG/L)
        RIO GRANDE CONVEYANCE         O.H83            2.5H7
    

    -------
    NAME
    CUUNTY
    STORET NO. - 3506
    
    I. MORPHOMETRY
    - EL VAOO RESI-KVOIR
    - RIO ARWIBA
    COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEW MEXICO
    
            (MESO-EUTROPHIC)
    
    WORKING PAPER NO.  822. NTIS ACCESSION NO. PB-278 500/AB
                     LAKE TYPE
                     IMPOUNDMENT
                       DRAINAGE AREA
                          (SO KM)
                         2012.40
                     SURFACE AREA
                       (SO KM)
                       13.07
              MEAN DEPTH
               (METEHS)
                18.3
    TOTAL INFLOW
       (CMS)
      8.S30
    RETENTION TIME
        (DAYS)
        386.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
               80.                170.
                                     MEAN SECCHI DISC
                                          (METERS)
                                            0.8
                                         MEDIAN
                                      TOTAL P(MG/L>
                                         0.034
                                  MEDIAN
                               OHTHO P(MG/L)
                                  0.014
                          MEDIAN
                        INORG  N(MG/L)
                          0.140
                           MEDIAN
                        TOTAL  N(MG/L)
                           0.420
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
                (UG/L)              (MG/L—DRY WT)
                2.2                 0.3 -   2.4 ( 2)
                                                LIMITING NUTRIENT AT SAMPLING TIME
    
                                                ( 5/ 5/75) P AND N  ( 8/19/75) N
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/ 5/75
       GENEHA
       CRYPTOMONAS
       CHROOMONAS
       CYCLOTELLA
       NITZSCHIA
       OTHER
    
       TOTAL
                     COUNT
                       154
                        92
                        31
                        31
                         0
                     8/19/75
          GENERA
          CHROOMONAS
          APHANIZOMENON
                             OTHER
                                  308   TOTAL
                              10/ 1/75
            COUNT   GENERA
              490   APHANIZOMENON
               31   CHROOMONAS
                    CRYPTOMONAS
    
                0   OTHER
    
              521   TOTAL
                                                                    (10/  1/75)  P AND N
                     COUNT
                       234
                       176
                         79
                                                                                          489
                                                                                                                                         ro
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
            POINT SOURCE
            MUNICIPAL (KG/YR)
                    1375.
                    3000.
    
                 OUTLET(S)
                 (KG/YR)
                 16885.
                26961i>.
                                            POINT SOURCE
                                            INDUSTRIAL  (KG/YR)
               PERCENT
              RETENTION
                 53.
               LOSS
                                     POINT SOURCE
                                    SEPTIC TANKS  (KG/YR)
                                              5.
                                            115.
                                   NON-POINT  SOURCE
                                          (KG/YR)
                                          33540.
                                        251875.
                                TOTAL LOADING
                                      (KG/YR)
                                      34920.
                                     254990.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                  2.67
                 19.5
    V. NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        RIO CHAMA                    6.180
        WILLOW CHEEK                 1.940
        BOULDER CHEEK                0.130
                                    DRAINAGE AREA
                                        (SO KM)
                                        1243.2
                                        499.9
                                        188.6
                                  MEAN TOTAL P
                                      (MG/L)
                                      0.108
                                      0.057
                                      2.430
                           MEAN TOTAL N
                               (MG/L)
                               0.968
                               0.929
                               4.077
                    TOTAL  P  EXPORT
                    (KG/SQ KM/YR)
                         19.
                          7.
                         25.
                     TOTAL N EXPORT
                     (KG/SQ KM/YR)
                          153.
                           60.
                           72.
    

    -------
                                  COMPENDIUM OF NATIONAL  EUTROPHICAT ION  SUrtVEY  LAKES  IN NEW MEXICO
    NAME       - LAKE MCMILLAN
    COUNTY     - EDDY
    STORET NO. - 3507
                       (EUTHOPHIC)
    
               WORKING PAPER NO.  823, NTIS ACCESSION NO. P6-278 495/AB
       MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
               DRAINAGE AREA
                  (SO KM)
                44004.10
           SURFACE AREA
             (SU KM)
             33.05
    MEAN DEPTH
     (METERS)
       2.1
    TOTAL INFLOW
       (CMS)
      6.950
    RETENTION TIME
        (DAYS)
         81.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
              104.                3998.
                             MEAN SECCHI DISC
                                  (METERS)
                                    0.3
                               MEDIAN
                            TOTAL P(MG/L)
                               0.097
                        MEDIAN
                     ORTHO P(MG/L)
                        0.009
                          MEDIAN
                       INORG NtMG/L)
                          0.045
                          MEDIAN
                       TOTAL NtMG/L)
                          0.470
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                14.1                  0.2 -   3.2  (  2)
                                        LIMITING NUTRIENT  AT SAMPLING  TIME
    
                                        ( 5/  1/75) P AND N ( 8/20/75)  N
                        SUMMARY OF PHYTOPLANKTON  DATA
                  5/ 1/75
       GENERA
       ACHNANTHES
       CYCLOTELLA
       LUNATE CELLS
       CHROOMONAS
       OOCYSTIS
       OTHER
    
       TOTAL
                                8/20/75
             COUNT   GENERA
              2733   NITZSCHIA
              1997   OSCILLATORIA
              1682   EUGLENA
               420   CRYPTOMONAS
               315   CYCLOTELLA
               210   OTHER
    
              7357   TOTAL
                                           10/ 2/75
                         COUNT   GENERA
                           770   NITZSCHIA
                           147   OSCILLATORIA
                           147   ANABAENA
                            37   EUGLENA
                            37   BINUCLEARIA
                            36   OTHER
    
                          1174   TOTAL
                                                          (10/ 2/75)  N
                                   COUNT
                                    2718
                                     614
                                     380
                                     146
                                     146
                                     380
    
                                    4384
                                                            C
                                                            CC
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
           13610.
           40B10.
    
         OUTLET(S)
         (KG/YR)
         1686U.
        641260.
                                             POINT  SOURCE
                                             INDUSTRIAL  (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
     PERCENT     LAKE SURFACE AREA LOADING RATE
    RETENTION               (G/SQ M/YR)
       30.                     1.05
     LOSS                     20.4
                         NON-POINT SOURCE
                               (KG/YR)
                               10625.
                              430120.
                               TOTAL LOADING
                                      (KG/YR)
                                     24335.
                                    470930.
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        PECOS RIVER                  6.690
                            DRAINAGE AREA
                               (SQ KM)
                              42597.2
    VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED  STREAMS
        STREAM NAME
    
        OVERFLOW OUTLET
        PECOS RIVER  (W CHANNEL)
        UNNAMED CREEK  (Dl)
               MEAN TOTAL
                  (MG/L)
                  0.043
                  0.230
                  0.022
          MEAN TOTAL N
             (MG/L)
             1.605
             1.910
             5.920
                        MEAN TOTAL P
                            (MG/L)
                            0.123
                 MEAN TOTAL N
                    (MG/L)
                     1.681
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                        0.2
                    TOTAL N EXPORT
                    (KG/SO KM/YR)
                           8.
    

    -------
    NAME       - UTE RESERVOIR
    COUNTY     - QUAY
    STOHET NO. - 3509
           COMPENDIUM  OF NATIONAL  EUTROPHICAT ION  SURVEY  LAKES IN NEW MEXICO
    
                   (MESOTROPHIC)
    
           WORKING  PAPER NO.   824,  NTIS  ACCESSION NO.  PB-278 494/AB
       MORPHOMETKY
                     LAKE TYPE
    
                     IMPOUNDMENT
           DRAINAGE  AREA
              (SO  KM)
            28853.60
           SURFACE AREA
             (SQ KM)
             16.79
              MEAN DEPTH
               (METERS)
                 8.0
    TOTAL INFLOW
       (CMS)
      3.020
    RETENTION TIME
        (YEARS)
          1.4
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
              274.                843.
                         MEAN  SECCHI  DISC
                              (METERS)
                                1.3
                               MEDIAN
                            TOTAL P(MG/L)
                               0.021
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.004
                          MEDIAN
                        INORG N(MG/L)
                          0.040
                           MEDIAN
                        TOTAL  NCMG/L)
                           0.420
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)             (MG/L—DRY WT)
                3.2                 0.2 -   0.2 ( 2)
                                    LIMITING NUTRIENT  AT SAMPLING TIME
    
                                    (  5/  2/75)  N        ( 8/20/75) N
                  5/ 2/75
                        SUMMARY OF PHYTOPLANKTON DATA
       GENERA
       CHROOMONAS
       CRYPTOMONAS
       FRAGILARIA
       CYCLOTELLA
    
       OTHER
    
       TOTAL
                            8/20/75
         COUNT    GENERA
           490    CHROOMONAS
           286    SYNEORA
            82    MERISMOPEOIA
            41    CRYPTOMONAS
                 DACTYLOCOCCOPSIS
             0    OTHER
    
           899    TOTAL
                                           10/ 3/75
                         COUNT   GENERA
                           280   CRYPTOMONAS
                           224   SYNEDRA
                           224   OOCYSTIS
                           205   MERISMOPEDIA
                           149   CLOSTERIUM
                           298   OTHER
    
                          1380   TOTAL
                                                          (10/ 3/75)  P  AND N
                                             COUNT
                                                142
                                                 85
                                                 57
                                                 57
                                                 57
                                                113
    
                                                511
    IV. NUTRIENT LOADING CHARACTERISTICS (LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                     POINT  SOURCE
                     INDUSTRIAL  (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
     OUTLET (S)
     (KG/YR)
      1095.
    184455.
     PERCENT
    RETENTION
       90.
     LOSS
                                   NON-POINT SOURCE
                                          (KG/YR)
                                          11225.
                                          61230.
                                TOTAL LOADING
                                      (KG/YR)
                                      11225.
                                      61230.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                  0.67
                  3.6
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                    (CMS)
        ROMERO DRAW                  0.030
        PAJARITO CREEK               0.250
                        DRAINAGE  AREA
                           (SO KM)
                             45.3
                           1263.9
                        MEAN TOTAL P
                           (MG/L)
                            0.082
                            1.259
                           MEAN TOTAL
                               (MG/L)
                               1.550
                               3.415
                   TOTAL  P  EXPORT
                   (KG/SQ KM/YR)
                          2.
                          8.
                     TOTAL  N EXPORT
                     (KG/SU KM/YR)
                           32.
                           21.
    

    -------
                                  COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES  IN OREGON
    NAME       - BROWNLEE RESERVOIR        (EUTROPHIC)
    COUNTY     - RAKER. OR; WASHINGTON, ID
    STORET NO. - 4101             WORKING PAPER NO.  827,
                                                          NTIS ACCESSION NO. PB-
                                                                                       /AB
    I.  MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
                                  DRAINAGE AREA
                                     (SO KM)
                                  188033.90
           SURFACE AREA
             (SO KM)
             56.66
       MEAN DEPTH
        (METERS)
         31.6
     TOTAL INFLOW
        (CMS)
     535.556
     RETENTION TIME
         (DAYS)
          39.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
              137.                309.
                                                MEAN SECCHI DISC
                                                     (METERS)
                                                        1.8
                               MEDIAN
                            TOTAL P(MG/L)
                               0.079
                           MEDIAN
                        ORTHO P(MG/L)
                           0.043
                           MEDIAN
                        INORG N{MG/L)
                           0.560
                           MEDIAN
                        TOTAL N(MG/L)
                           0.910
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)             (MG/L—DRY WT)
                                                           LIMITING NUTRIENT  AT SAMPLING  TIME
    
                                                            ( 4/ 9/75) P  AND N ( 8/  4/75)  P  AND  N  (  9/15/75)  N
                  4/ 9/75
       GENERA
       STEPHANODISCUS
       ASTERIONELLA  .
       SURIRELLA
       NAVICULA
       MELOSIRA
       OTHER
    
       TOTAL
                        SUMMARY OF PHYTOPLANKTON DATA
                                                   8/ 4/75
    COUNT
    9749
    603
    235
    168
    101
    267
    GENERA
    FRAGILARIA
    MELOSIRA
    CHROOMONAS
    CRYPTOMONAS
    
    OTHER
                                                                                     9/15/75
                                                                 COUNT   GENERA
                                                                   1312   MELOSIHA
                                                                    150   APHANIZOMENON
                                                                    150   SCHROEDERIA
                                                                     37   NAVICULA
                                                                      0   OTHER
                                11123
                                        TOTAL
                                                                   1649
                                                                          TOTAL
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                               4550.
                              61170.
    
                            OUTLET(S)
                            (KG/YR)
                           1023210.
                          18218785.
    POINT SOURCE
    INDUSTRIAL (KG/YR)
         50570.
     160530500.
       POINT SOURCE
      SEPTIC TANKS (KG/YR)
              990.
        440500401.
                                                          COUNT
                                                           2705
                                                            312
                                                             35
                                                             35
                                                                                                    3087
            NON-POINT SOURCE
                  (KG/YR)
                1890725.
               30973275.
                                                                                                 C
                                                                                                 cn
                TOTAL LOADING
                      (KG/YR)
                    1946835.
                  632065346.
     PERCENT     LAKE SURFACE AREA LOADING KATE
    RETENTION              (G/SO M/YR)
       47.                    34.36
       97.                  11155.4
    V. NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME
    
        SNAKE RIVER
        EAGLE CREEK
        POWDER RIVER
        ROCK CREEK
        9URNT RIVER
        LITTLE ROCK CREEK
                                  MEAN FLOW
                                     (CMS)
                                   507.920
                                     7.670
                                     6.980
                                     0.075
                                     3.900
                                     0.041
       DRAINAGE AREA
          (SQ KM)
        1R0004.9
           507.6
          3548.3
            42.2
          2830.9
            31.9
    MEAN TOTAL P
       (MG/L)
        0.129
        0.045
        0.149
        0.079
        0.157
        0.096
    MEAN TOTAL N
       (MG/L)
        1.852
        0.667
        1.197
        0.918
        1.131
        1.063
    TOTAL P EXPORT
    (KG/SO KM/YH)
         10.
         29.
         11.
          5.
          9.
          4.
    TOTAL N EXPORT
    (KG/SO KM/YR)
         168.
         341.
          93.
          54.
          54.
          46.
    vi. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
        STREAM NAME
    
        8ROWNLEE CREEK
        DENNETT CREEK
        TRAIL CREEK
                                  MEAN TOTAL
                                      (MG/L)
                                      0.065
                                      0.031
                                      0.097
          MEAN TOTAL N
             (MG/L)
             0.883
             1.274
             0.928
    

    -------
    HENLEY CREEK                 0.110           0.548
                                                                                                                                       O
                                                                                                                                       C3
    

    -------
    NAME       - DIAMOND LAKE
    COUNTY     - DOUGLAS
    STORET NO. - 4102
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN OREGON
    
                                      (MESO-EUTROPH1C)
    
                              WORKING PAPER NO.  828. NTIS ACCESSION NO.  PB-281 809/AB
    I. MORPMOMETRY
                     LAKE TYPE
    
                     NATURAL
                              DRAINAGE AREA
                                 (SO KM)
    SURFACE AREA
      (SO KM)
      13.00
    MEAN DEPTH
     (METERS)
       6.9
    TOTAL INFLOW
       (CMS)
    RETENTION TIME
        (YEARS)
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
               22.                 26.
                                            MEAN SECCHI DISC
                                                 (METERS)
                                                   5.2
                        MEDIAN
                     TOTAL P(MG/L)
                        0.028
          MEDIAN
       ORTHO PIMG/L)
          0.011
          MEDIAN
       INORG NtMG/L)
          0.040
                                                         MEDIAN
                                                      TOTAL NCMG/L)
                                                         0.370
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY  CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                7.3                »«»o»«»
    -------
                                  COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES IN OREGON
    NAME       - HELLS CANYON RESERVOIR   (EUTROPHIC)
    COUNTY     - BAKER* WALLOWA, OP; ADAMS,  IDAHO.  ID
    STORET NO. - 4103             WORKING PAPER NO.  829. NTIS ACCESSION NO. PB-
                                                                  /AB
    I. MOHPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
             DRAINAGE AREA
                (SO  KM)
             189846.90
                                                SURFACE AREA
                                                  (SO KM)
                                                  10.12
    MEAN DEPTH
     (METERS)
      20.4
                                      TOTAL INFLOW
                                         (CMS)
                                      553.950
                      RETENTION TIME
                          (DAYS)
                            4.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)   CONDUCT IVITY(UMHOS)
              138.                263.
                           MEAN  SECCHI  DISC
                                (METERS)
                                  1.8
                                                                    MEDIAN
                                                                 TOTAL P(MG/L)
                                                                    0.068
                                            MEDIAN
                                         OHTHO P(MG/L)
                                            0.045
                                         MEDIAN
                                      INORG  NIMG/L)
                                         0.640
                                             MEDIAN
                                          TOTAL N(MG/L)
                                             0.830
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)             (MG/L—DRY WT)
               18.7               «»»«*»»»»»
                                      LIMITING NUTRIENT AT SAMPLING TIME
    
                                      (  4/ 8/75)  P       ( 8/ 4/75) N
                        SUMMARY OF PHYTOPLANKTON DATA
                  4/ 8/75
       GENERA
       STEPHANODISCUS
       ASTERIONELLA
       MELOSIRA
       FRAGILARIA
       SUHIRELLA
       OTHER
    
       TOTAL
                              8/ 4/75
           COUNT   GENERA
            7332   FRAGILARIA
             296   MELOSIRA
             148   ASTERIONELLA
             111   SKELETONEMA
             111   CRYPTOMONAS
             334   OTHER
    
            8332   TOTAL
                                                                                 9/15/75
                                                              COUNT   GENERA
                                                               6928   CHROOMONAS
                                                               3322   MELOSIRA
                                                                608   STEPHANODISCUS
                                                                405   CRYPTOMONAS
                                                                162   SCHROEDERIA
                                                                163   OTHER
    
                                                              1158B   TOTAL
                                                                                               ( 9/15/75)  N
                                                       COUNT
                                                          795
                                                          614
                                                           36
                                                           36
                                                           36
                                                            0
    
                                                         1517
                                                              C
                                                              00
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        «. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                       POINT SOURCE
                       INDUSTRIAL (KG/YR)
                                                                POINT SOURCE
                                                               SEPTIC TANKS (KG/YR)
       OUTLET(S)
       (KG/YR)
     1017465.
    21630255.
                                          PERCENT     LAKE SURFACE AREA LOADING RATE
                                         RETENTION              (G/SO M/YR)
                                          LOSS                    93.11
                                            16.         '          2558.2
                                             NON-POINT  SOURCE
                                                    (KG/YR)
                                                  942285.
                                                25888790.
                                  TOTAL  LOADING
                                        (KG/YR)
                                      942285.
                                     25888790.
    NON-POINT-SOURCE NUTRIENT EXPORT
     STREAM NAME               MEAN FLOW
                                 (CMS)
     SNAKE RIVER                532.660
     INDIAN CREEK                 1.940
     PINE CREEK                  10.f
    DRAINAGE AREA
       (SO KM)
     188810.9
        102.8
          5.7
                                                                MEAN TOTAL P
                                                                    (MG/L)
     MEAN TOTAL N
        (MG/L)
    »««««»«»««
                                                                            TOTAL  P EXPORT   TOTAL N EXPORT
                                                                            (KG/SO KM/YR)     (KG/SQ KM/YR)
                                                                                  5.              134.
                                                                                39.              670.
                                                                                51.              616.
    VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
        STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                     (MG/L)           (MG/L)
        KINNEY CREEK                 0.042            0.654
    

    -------
    NAME       - HILLS CREEK RESERVOIR
    COUNTY     - LANE
    STORE! NO. - 410*             WORKING PAPER NO.
           COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES IN OREGON
    
                   (EUTROPHIC)
    
                              830, NTIS ACCESSION NO. PB-281 857/AB
    I. MORPHOMETHY
                     LAKE TYPE
    
                     IMPOUNDMENT
           DRAINAGE AREA
              (SO KM)
             1007.50
           SURFACE AREA
             (SO KM)
             11.07
              MEAN DEPTH
               (METERS)
                39.2
    TOTAL INFLOW
       (CMS)
     33.040
    RETENTION TIME
        (DAYS)
        152.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
               ?5.                 35.
                         MEAN SECCHI DISC
                              (METERS)
                                1.6
                               MEDIAN
                            TOTAL P(MG/L)
                               0.038
                                  MEDIAN
                               ORTHO PIMG/L)
                                  0.027
                          MEDIAN
                       INORG N(MG/L)
                          0.060
                          MEDIAN
                       TOTAL N
                          0.230
    in. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                2.3                
    -------
    NAME       - LAKE OwYHEE
    COUNTY     - MALHEUR
    STORE! NO. - 4105
            COMPENDIUM  OF NATIONAL  EUTROPHICATION  SURVEY  LAKES IN OREGON
    
                    (EUTHOPHIC)
    
            WORKING  PAPER NO.   831,  IMTIS  ACCESSION NO.  PB-281  799/AB
       MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
            DRAINAGE  AREA
               (SO  KM)
             28904.40
           SURFACE  AREA
             (SO KM)
             56.25
    MEAN DEPTH
     (METERS)
      24.6
                                         TOTAL INFLOW
                                            (CMS)
                                          37.180
    RETENTION TIME
        (YEARS)
          1.7
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
               83.                150.
                         MEAN  SECCHI  DISC
                               (METERS)
                                 0.5
                               MEDIAN
                            TOTAL P(MG/L)
                               0.095
                        MEDIAN
                     ORTHO PIMG/L)
                        0.064
                                                               MEDIAN
                                                             INORG N(MG/L)
                                                               0.425
                           MEDIAN
                        TOTAL  N(MG/L)
                           0.780
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                3.4                      B.2
                                     LIMITING  NUTRIENT  AT SAMPLING TIME
    
                                     (  4/  8/75)  N        ( 8/ 1/75) N
                        SUMMARY OF PHYTOPLANKTON DATA
                  4/ 8/75
       GENERA
       CYCLOTELLA
       CHROOMONAS
       CHLAMYDOMONAS
       PHORMIDIUM
       CRYPTOMONAS
       OTHER
    
       TOTAL
                             8/  1/75
          COUNT    GENERA
            207    COELOSPHAERIUM
            207    CRYPTOMONAS
             69    APHANIZOMFNON
             69    PHOHMIOIUM
             34    SCENEDESMUS
             68    OTHER
    
            654    TOTAL
                         COUNT
                           304
                           154
                           101
                           101
                            51
                             0
                     9/16/75
          GENERA
          APHANIZOMENON
          CHROOMONAS
                                 OTHER
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
      OUTLET(S)
      (KG/YR)
     101020.
    1017855.
    POINT SOURCE
    INDUSTRIAL (KG/YR)
                                                                   711   TOTAL
                                             POINT SOURCE
                                            SEPTIC TANKS (KG/YR)
                                                     30.
                                                   1065.
                                                          ( 9/16/75)  N
                                                          COUNT
                                                            409
                                                            204
                                                             613
                                                NON-POINT SOURCE
                                                       (KG/YR)
                                                       99555.
                                                    1098735.
                                              TOTAL LOADING
                                                    (KG/YR)
                                                    99585.
                                                  1099800.
     PERCENT     LAKE SURFACE AREA LOADING RATE
    RETENTION              (G/SO M/YR)
     LOSS                     1.77
        7.                     19.6
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        OWYHEE RIVER                 25.520
                         DRAINAGE AREA
                            (SO KM)
                           20720.0
                        MEAN TOTAL P
                           (MG/L)
                            0.115
                 MEAN  TOTAL  N
                     (MG/L)
                      1.211
                                                         TOTAL  P  EXPORT
                                                         (KG/SO KM/YR)
                                                               4.
                     TOTAL N EXPORT
                     (KG/SO KM/YR)
                           47.
    VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
        STREAM NAME
    
        DRY CREEK
        BIRCH CREEK
        CROOKED CREEK
            MEAN TOTAL P
               (MG/L)
               0.086
               0.102
               0.047
          MEAN TOTAL N
             (MG/D
             0.870
             1.241
             1.372
    

    -------
    NAME
    COUNTY
    STORET NO.
                       COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES  IN OREGON
    
    - OXBOW RESERVOIR          (EUTROPHIC)
    - BAKERt OR; ADAMSt 10
    - 4106             WORKING PAPER NO.  832. NTIS ACCESSION NO. PB-       /AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
                       DRAINAGE AREA
                          (SO KM)
                       188810.90
               SURFACE AREA
                 (SO KM)
                  S.66
              MEAN DEPTH
               (METERS)
                11.4
    TOTAL INFLOW
       (CMS)
    532.660
    RETENTION TIME
        (DAYS)
          1.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
               131.                265.
                                     MEAN SECCHI DISC
                                          (METERS)
                                             1.9
                                   MEDIAN
                                TOTAL PfMG/L)
                                   0.071
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.040
                          MEDIAN
                       INORG NIMG/L)
                          0.690
                          MEDIAN
                       TOTAL N(MG/L)
                          0.910
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                10.3               .«««««*««««
                                                LIMITING NUTRIENT  AT SAMPLING  TIME
                        SUMMARY OF PHYTOPLANKTON  DATA
                  4/ 9/75
       GENERA
       STEPHANODISCUS
       ASTERIONELLA
       MELOSIRA
       SURIRELLA
       CHROOMONAS
       OTHER
    
       TOTAL
                     COUNT
                       300
                       257
                        43
                        43
                        44
    
                      6308
               8/ 4/75
    GENERA
    FRAGILARIA
    STEPHANODISCUS
    OTHER
                                         TOTAL
                                                 ( 4/ 9/75) P
                                                      COUNT
                                                        433
                                                          31
                                                                    464
                                                                    ( 8/ 4/75)  N
                                                                                     9/15/75
                    GENERA
                    MELOSIRA
                    CYCLOTELLA
                    CRYPTOMONAS
                                     OTHER
                                                                          TOTAL
                                                                                       (  9/15/75)  N
                     COUNT
                       807
                        70
                        35
                                                                                                     912
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A.  INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                                 POINT SOURCE
                                 INDUSTRIAL  (KG/YR)
                               POINT SOURCE
                              SEPTIC TANKS  (KG/YR)
                 OUTLET (S)
                 (KG/YR)
                895060.
              25222530.
         PERCENT
        RETENTION
           14.
         LOSS
                                   NON-POINT SOURCE
                                         (KG/YR)
                                       1038645.
                                      18480225.
                               TOTAL LOADING
                                     (KG/YR)
                                    1038645.
                                  18480225.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                183.51
               3265.1
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        SNAKE RIVER                526.270
        WILOHORSE RIVER               4.920
                                    DRAINAGE AREA
                                        (SU KM)
                                     188033.9
                                        458.4
                            MEAN TOTAL P    MEAN TOTAL N    TOTAL P EXPORT    TOTAL  N  EXPORT
                               (M(i/L)          (MG/L)       (KG/SO KM/YR)     (KG/Sli KM/YR)
                                0.062           1.512             5.                97.
                                0.038           0.727            20.              331.
    

    -------
    NAME       - SUTTLE LAKE
    COUNTY     - JEFFERSON
    STORET NO. - 4107
      COMPENDIUM OF  NATIONAL EUTROPHICATIUN SURVEY LAKES IN OREGON
    
              (MESO-EUTROPHIC)
    
      WORKING PAPER  NO.   833. NTIS ACCESSION NO. P8-281 870/AB
    I. MOHPHOMETRY
                     LAKE TYPE
    
                     NATURAL
      DRAINAGE AREA
         (SO KM)
          57.50
               SURFACE AREA
                 (SO KM)
                  1.09
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
               ?7.                 47.
                    MEAN SECCHI DISC
                         (METERS)
                          10.3
    MEAN DEPTH TOTAL INFLOW RETENTION TIME
    (METERS) (CMS) (DAYS)
    9.9 1.447 87.0
    MEDIAN
    TOTAL P(MG/L)
    0.031
    MEDIAN
    ORTHO P(M6/L)
    0.020
    MEDIAN
    INORG NIMG/L)
    0.040
                                                                                    MEDIAN
                                                                                 TOTAL N(HG/L)
                                                                                    0.220
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/D              (MG/L—DRY WT>
                9.2                      0.4
                               LIMITING NUTRIENT AT SAMPLING TIME
                               (  3/28/75)  N
                        SUMMARY OF PHYTOPLANKTON DATA
                  3/28/75
       GENERA
       MELOSIRA
       DACTYLOCOCCOPSIS
       SYNEDRA
       OTHER
    
       TOTAL
    COUNT
     1374
      153
       38
        0
    
     1565
               7/16/75
    GENERA
    ANABAENA
    ASTERIONELLA
    OTHER
    
    TOTAL
    COUNT
     1263
       90
        0
    
     1353
                                                  ( 7/16/75) N
                                                                                   10/31/75
                                                                         GENERA
                                                                         STEPHANODISCUS
                                                                         FRAGILARIA
                                                                         CHROOMONAS
                                                                         CRYPTOMONAS
                                                                         ASTERIONELLA
                                                                         OTHER
    
                                                                         TOTAL
                                                                      (10/31/75)  N
    COUNT
      637
      495
      283
      106
       35
      142
    
     1698
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
                       POINT SOURCE
                       MUNICIPAL (KG/YR)
         PHOSPHORUS       *«««««»«««
         NITROGEN         «»*«»«»«»»
        B. OUTPUT
                            OUTLET(S)
                            (KG/YR)
                             1355.
                            29455.
                                            POINT SOURCE
                                            INDUSTRIAL  (KG/YRI
         PHOSPHORUS
         NITROGEN
                 oooooooooo
    
                 PERCENT
                RETENTION
                   27.
                 LOSS
                                       POINT SOURCE
                                      SEPTIC TANKS  (KG/YR)
                                               10.
                                              345.
                                                    NON-POINT  SOURCE
                                                           (KG/YR)
                                                            1845.
                                                           18820.
                                                TOTAL LOADING
                                                      (KG/YR)
                                                       1855.
                                                      19165.
                     LAKE SURFACE AREA LOADING RATE
                               (G/SO M/YR)
                                   1.70
                                  17.6
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        BLUE LAKE OUTLET              1.350
                   DRAINAGE AREA
                      (SO KM)
                        46.9
                            MEAN TOTAL P
                               (MG/L)
                                0.034
                   MEAN TOTAL N
                       (MG/L)
                       0.364
                                                                                                TOTAL  P  EXPORT
                                                                                                (KG/SQ KM/YR)
                                                                                                     32.
                    TOTAL  N EXPORT
                    (KG/SU KM/YR)
                        313.
    

    -------
                                  COMPENDIUM OF NATIONAL  EUTROPHICAT ION  SURVEY LAKES IN OREGON
    
    NAME       - WALDO LAKE                (OLIGOTPOPHIC)
    COUNTY     - LANE
    STORET NO. - 4108             WORKING  PAPER NO.  834,  NTIS  ACCESSION NO.  PB-281  871/AB
    
    I. MORPHOMETRY
    
    II.
    LAKE TYPE DRAINAGE AREA
    (SO KM)
    PHYSICAL AND CHEMICAL CHARACTERISTICS
    MEDIAN MEDIAN
    ALKALINITY(MG/L) CONDUCT IV I fY(UMHOS)
    10. 3.
    SURFACE AREA
    (SO KM)
    26.70
    MEAN SECCHI DISC
    (METERS)
    15.2
    MEAN DEPTH TOTAL INFLOW RETENTION TIME
    (METERS) (CMS) (YEARS)
    MEDIAN MEDIAN MEDIAN
    TOTAL PiMG/L) ORTHO P(MG/L) INORG N(MG/L)
    0.005 0.006 0.040
    
    MEDIAN
    TOTAL NIMG/L)
    0.220
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD     LIMITING NUTRIENT AT SAMPLING TIME
                (UG/L)              (MG/L—DRY WT)
                0.4                      0.1                (  7/16/75)  N        (10/30/75)  P
    
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
                       POINT SOURCE         POINT  SOURCE            POINT  SOURCE         NON-POINT SOURCE    TOTAL LOADING
                       MUNICIPAL  (KG/YR)    INDUSTRIAL  (KG/YR)     SEPTIC  TANKS (KG/YR)         (KG/YR)              (KG/YR)
         PHOSPHORUS       «»o«oo*»«o         oooooooooo              oooooooooo            oooooooooo          ««««*««»•*
         NITHOGFN         ea«aooe««e         ooooooooeo              oooooooooe            oeoooooooo          «»*«««»»**
        R. OUTPUT
                            OUTLET(S)        PERCENT      LAKE SURFACE  AREA LOADING RATE
                            (KG/YR)         RETENTION               (G/SO  M/YR)
         PHOSPHORUS     »«•«»«**««           »»»•«               *««»«»«o«»
         NITROGEN       «»»«»«o»»o           »»««»               a«o»040000
                                            »«*«  LAKE  SAMPLING  ONLY  «•«»
    

    -------
    NAME       - BEAR LAKE
    COUNTY     - RICH, UTS HEAR LAKE. ID
    STORET NO. - 4901             WORKING PAPER NO.
      COMPENDIUM OF NATIONAL EUTROPH1CAT ION SURVEY LAKES IN UTAH
    
              (OLIGOTROPHIC)
    
                         836, NTIS ACCESSION NO. PB-279 105/A6
       MOHPHOMETRY
                     LAKE TYPE
    
                     NATURAL
      DRAINAGE AREA
         (SO KM)
        1030.80
    SURFACE AREA
      (SO KM)
     171.59
    MEAN DEPTH
     (METEKS)
      10.2
                                                                                 TOTAL INFLOW
                                                                                    (CMS)
                                                                                   2.546
    RETENTION TIME
        (YEARS)
         21.9
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
              374.                543.
                    MEAN SECCHI DISC
                         (METERS)
                           6.3
                        MEDIAN
                     TOTAL P(MG/L)
                        0.011
                        MEDIAN
                     ORTHO P(MG/L)
                        0.003
                                                                                                       MEDIAN
                                                                                                     INORG  NIMG/L)
                                                                                                       0.040
                           MEDIAN
                        TOTAL  NCMG/L)
                           0.220
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                0.9                »»«»o«««»»
                               LIMITING NUTRIENT AT SAMPLING TIME
    
                               (  5/14/75) N
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/14/ 0
       GENERA
       ANKISTRODESMUS
       CHROOMONAS
       OTHER
    
       TOTAL
                                                      6/ 0
                                < 8/ 6/75)  P  AND N (  9/19/75) P AND N
    
    
                                      9/19/ 0
    COUNT   GENERA
     1003   LAGERHEIMIA
       56   KIRCHNERIELLA
            CRYPTOMONAS
            OSCILLATORIA
        0   OTHER
    
     1059   TOTAL
                  COUNT
                     95
                     95
                     48
                     48
                      0
    
                    266
          GENERA
          LYNG8YA
          OOCYSTIS
          ELAKATOTHRIX
          CHROOMONAS
          OTHER
    
          TOTAL
    IV.  NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A.  INPUT
                       POINT SOURCE
                       MUNICIPAL (KG/YR)
         PHOSPHORUS       ««««»««««»
         NITROGEN         ««»«««««««
        B.  OUTPUT
                            OUTLET(S)
                            (KG/YR)
                             4925.
                           124190.
                                            POINT SOURCE
                                            INDUSTRIAL  
         PHOSPHORUS
         NITROGEN
                 PERCENT
                RETENTION
                   67.
                   74.
                                       POINT SOURCE
                                      SEPTIC TANKS  (KG/YR)
                                               95.
                                             3515.
                                                                                                  COUNT
                                                                                                     181
                                                                                                     181
                                                                                                     135
                                                                                                     135
                                                                                                       0
    
                                                                                                     632
                                          NON-POINT SOURCE
                                                (KG/YR)
                                                14645.
                                               467505.
                                              TOTAL LOADING
                                                    (KG/YR)
                                                    14740.
                                                   471020.
          LAKE SURFACE AREA LOADING  RATE
                     (G/SQ M/YR)
                        0.09
                         2.7
    V. NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME
    
        BIG CREEK
        INDIAN CREEK
        N. EDEN CANYON
        UNNAMED CREEK El
        SWAN CREEK
        FISH HAVEN CREEK
        LITTLE CREEK
        PUMPED RETURN FLOW
    MEAN FLOW
    (CMS)
    0.530
    0.006
    0.317
    0.137
    0.510
    0.096
    0.200
    f,. T?n
    DRAINAGE AREA
    (SQ KM)
    246.0
    11.7
    137.3
    59.6
    10.1
    31.1
    93.2
    MEAN TOTAL P
    (MG/L)
    0.084
    0.321
    0.092
    0.181
    0.027
    0.041
    0.030
    n. H44
    MEAN TOTAL
    (MG/L)
    1.213
    3.530
    0.573
    0.980
    0.394
    0.777
    0.918
    1 -4hfl
    N
    
    
    
    
    
    
    
    
                                                                     TOTAL P EXPORT
                                                                     (KG/SO KM/YR)
                                                                           6.
                                                                           5.
                                                                           7.
                                                                          13.
                                                                          43.
                                                                           4.
                                                                           2.
                                                                   TOTAL N  EXPORT
                                                                    (KG/SO KM/YR)
                                                                         82.
                                                                         57.
                                                                         42.
                                                                         71.
                                                                        627.
                                                                         76.
                                                                         62.
                                                                  «•«»•«*«*«
    

    -------
                                  COMPENDIUM  OF NATIONAL  EUTWOPHICATION SURVEY LAKES IN UTAH
    
    NAME       - DEER CHEEK RESERVOIR      (PUTHOPHIC)
    COUNTY     - WASATCH
    STORET NO. - 4903             WORKING  PAPER NO.   837,  NTIS ACCESSION NO.  PB-2B1  899/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
               DRAINAGE AREA
                  (SO KM)
                 1450.40
           SURFACE AREA
             (Su KM)
              9.66
    MEAN DEPTH
     (METERS)
      19.9
    TOTAL INFLOW
       (CMS)
     10.676
    RETENTION TIME
        (DAYS)
        211.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
              142.                 303.
                             MEAN SECCHI DISC
                                  (METERS)
                                    1.8
                               MEDIAN
                            TOTAL P(MG/L)
                               0.038
                        MEDIAN
                     ORTHO PIMG/L)
                        0.006
                          MEDIAN
                       INORG NIMG/L)
                          0.215
                          MEDIAN
                       TOTAL  NIMG/L)
                          0.585
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL  A     ALGAL  ASSAY  CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                9.1                  1.0  -   3.3  (  2)
    
                        SUMMARY  OF PHYTOPLANKTON  DATA
                                        LIMITING NUTRIENT AT SAMPLING  TIME
                  5/12/75
       GENERA                    COUNT
       STEPHANODISCUS             5047
       CHROOMONAS                 3426
       FLAGELLATES                2100
       CRYPTOMONAS                 700
       ASTERIONELLA                 74
       OTHER                         0
    
       TOTAL                     11347
                                8/11/75
                     GENERA
                     FRAGILARIA
                     SPHAEROCYSTIS
                     OTHER
                                         TOTAL
                                         ( 5/12/75) P
                         COUNT
                          7571
                            55
                                                                   7626
                                                            ( 8/11/75) P  AND N  (  9/19/75)  P
                     9/19/75
          GENERA                   COUNT
          APHANIZOMENON             2365
          CriROOMONAS                 377
          FLAGELLATES                240
          STEPHANODISCUS              69
          COELOSPHAERIUM              69
          OTHER                      102
    
          TOTAL                     3222
                                                                                                                       cn
    IV. NUTRIENT LOADING  CHARACTERISTICS(LAKE)
        A.  INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
            7360.
           29710.
    
         OUTLET(S)
         (KG/YR)
         15605.
        242720.
    POINT SOURCE
    INDUSTRIAL (KG/YR)
          4195.
         47000.
                                                                    POINT SOURCE
                                                                   SEPTIC TANKS (KG/YR)
                         NON-POINT SOURCE
                                (KG/YR)
                                12295.
                              234645.
                               TOTAL LOADING
                                      (KG/YR)
                                     23850.
                                    311355.
     PERCENT     LAKE SURFACE AREA LOADING RATE
    RETENTION              (G/SQ M/YH)
       35.                     2.47
       22.                     32.2
       NON-POINT-SOURCE  NUTRIENT  EXPORT
        STREAM NAME                MEAN FLOW
                                     (CMS)
        PROVO RIVER                   8.230
        DECKER CREEK                  0.011
        SNAKE CREEK                   1.300
        DANIELS  CREEK                 0.100
        MAIN CREEK                    0.375
                            DRAINAGE AREA
                                (SO KM)
                                976.4
                                  4.7
                                 82.9
                                126.9
                                186.5
                        MEAN TOTAL P
                           (MG/L)
                            0.065
                            0.059
                            0.090
                            0.255
                            0.119
                 MEAN TOTAL N
                    (MG/L)
                     0.865
                     0.324
                     1.282
                     1.242
                     1.049
                   TOTAL P EXPORT
                   (KG/SO KM/YK)
                         9.
                         6.
                         7.
                    TOTAL N  EXPORT
                    (KG/SU KM/YR)
                         204.
                          51.•
                          52.«
                          35.
                          68.
    VI. MEAN NUTRIENT  CONCENTRATIONS  IN  UNGAGED STREAMS
        STREAM NAME                MEAN TOTAL  I?     MEAN TOTAL N
                                      (MG/L)           (MG/L)
        SPRING CREEK                  0.300            1.492
           ESTIMATED
    

    -------
    NAME       - ECHO RESERVOIR
    COUNTY     - SUMMIT
    STORET NO. - 4904
               COMPENDIUM  OF  NATIONAL  EUTROPHICATION SURVEY LAKES IN UTAH
    
                       (EUTROPHIC)
    
               WORKING PAPER  NO.   838,  NTIS ACCESSION NO.  PB-       /AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
               DRAINAGE AREA
                  (SO KM)
                 1P95.90
           SURFACE AREA
             (SO KM)
              5.95
       MEAN DEPTH
        (METERS)
         15.3
     TOTAL INFLOW
        (CMS)
       7.687
     RETENTION TIME
         (DAYS)
         134.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
              172.                333.
                             MEAN SECCHI  DISC
                                  (METERS)
                                    1.3
                               MEDIAN
                            TOTAL P(MG/L)
                               0.047
                           MEDIAN
                        ORTHO PIMG/L)
                           0.012
                           MEDIAN
                        INORG NCMG/L)
                           0.170
                           MEDIAN
                        TOTAL N(MG/L>
                           0.460
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)             (MG/L—DRY wT)
                7.0               »««*»««««»
                                        LIMITING NUTRIENT AT SAMPLING TIME
    
                                        (  5/12/75)  N       ( 8/ 7/75) P AND N  ( 9/18/75)
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/12/75
       GENERA
       CHROOMONAS
       CENTRIC DIATOM
       FRAGILARIA
       CRYPTOMONAS
       ASTEHIONELLA
       OTHER
    
       TOTAL
                                8/ 7/75
             COUNT   GENERA
              9336   CHROOMONAS
              1221   CRYPTOMONAS
              1103   FRAGILARIA
               906   ASTERIONELLA
               118   ANKISTRODESMUS
                 0   OTHER
    
             12684   TOTAL
                                            9/18/75
                         COUNT   GENERA                   COUNT
                           305   FRAGILARIA                 918
                           153   CHROOMONAS                 598
                            61   CRYPTOMONAS                160
                            31   APHANIZOMENON                40
                            31   ASTERIONELLA                 40
                             0   OTHER                         0
    
                           581   TOTAL                      1756
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
            3785.
           10495.
    
         OUTLET(S)
         (KG/YR)
         10165.
        178965.
                                            POINT SOURCE
                                            INDUSTRIAL (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
                            NON-POINT SOURCE
                                   (KG/YR)
                                   11115.
                                 306120.
                                TOTAL  LOADING
                                       (KG/YR)
                                       14900.
                                     316615.
     PERCENT  "  LAKE SURFACE AREA LOADING RATE
    RETENTION              (G/SO M/YK)
       32.                     2.50
       43.                     53.2
    V. NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME
    
        rfEBER RIVER
        CHALK CREEK
        UNNAMED CREEK Dl
               MEAN FLOW
                 (CMS)
                  5.640
                  1.740
                  0.080
       DRAINAGE AREA
          (SO KM)
          1134.4
           655.3
            15.5
    MEAN TOTAL P
       (MG/L)
        0.045
        0.032
        0.129
    MEAN TOTAL N
       (MG/L)
        1.211
        1.177
        2.037
    TOTAL P EXPORT
    (KG/SO KM/YR)
          7.
          3.
         21.
    TOTAL N EXPORT
    (KG/SQ KM/YR)
         190.
          99.
         332.
    

    -------
    NAME       - FISH LAKE
    COUNTY     - SEVIER
    STORET NO. - 4906
          COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN UTAH
    
                  (MESOTROPHIC—EUTROPHIC)
    
          WORKING PAPER NO.  839. NTIS ACCESSION NO. PB-       /AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
          DRAINAGE AREA
             (SO KM)
              57.00
           SURFACE AREA
             (SU KM)
             10.12
              MEAN DEPTH
               (METERS)
                25.9
    TOTAL INFLOW
       (CMS)
      0.143
    RETENTION TIME
        (YEARS)
         58.5
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
               63.                 87.
                        MEAN SECCHl DISC
                             (METERS)
                               8.8
                               MEDIAN
                            TOTAL PIMG/L)
                               0.023
                                  MEDIAN
                               ORTHO PIMG/L)
                                  0.004
                          MEDIAN
                       INORG N
               12.5                «««»•«»»««
    
                        SUMMARY OF PHYTOPLANKTON DATA
                                   LIMITING NUTRIENT AT SAMPLING TIME
                                   ( 8/12/75) N
                                                       ( 9/25/75) N
                  8/12/75
       GENERA                   COUNT
       FRAGILARIA                2281
       ANACYSTIS(MICROCYSTIS)    2082
       CHROOCOCCUS                760
       NAVICULA                   198
       DINOBHYON                  132
       OTHER                      925
    
       TOTAL                     6378
                           9/25/75
                GENERA
                CHLAMYDOMONAS
                OOCYSTIS
                CHROOMONAS
                KIRCHNERIELLA
                LAGERHEIMIA
                OTHER
    
                TOTAL
    IV. NUTRIENT LOADING CHARACTER ISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                    POINT SOURCE
                    INDUSTRIAL IKG/YRI
    OUTLET(S)
    (KG/YR)
      210.
     392b.
     PERCENT
    RETENTION
       58.
       74.
                         COUNT
                          1103
                           531
                           286
                           123
                           123
                           203
    
                          2369
                           POINT SOURCE
                          SEPTIC TANKS IKG/YR)
                                   40.
                                 1455.
                                   NON-POINT SOURCE
                                          (KG/YR)
                                           455.
                                          13490.
                               TOTAL LOADING
                                      (KG/YR)
                                        495.
                                      14945.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                  0.05
                   1.5
       NON-POINT-SOUHCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        JORGENSON CREEK              O.OS6
        BOWERY CREEK                 0.018
        TWIN CREEK                   0.009
        DOCTOR CREEK                 0.004
                       DRAINAGE AREA
                          (SO KM)
                             8.3
                             2.6
                             1.3
                             7.0
                        MEAN TOTAL P
                           (MG/L)
                            0.067
                            0.060
                            0.057
                            0.061
                           MEAN TOTAL N
                              (MG/L)
                               0.464
                               0.662
                               0.631
                               0.606
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                        14.
                        13.
                        12.
                         1.
                    TOTAL N  EXPORT
                    (KG/SO KM/YR)
                          99.
                          144.
                          138.
                          11.
    VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
        STREAM NAME               MEAN TOTAL P    MEAN TOTAL  N
                                      (MG/L)           (MG/L)
        ANDERSON CREEK                0.035            0.122
    

    -------
    NAME       - HUNTINGTON LAKE
    COUNTY     - EMERY
    STORE! NO. - 4907
                 COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN UTAH
    
                         (MESOTROPhIC)
    
                 WORKING PAPER NO.  840, NTIS ACCESSION NO. PB-281 873/AB
    I. MORPHOMETRY
    LAKE TYPE
    
    NATURAL
                                  DRAINAGE AREA
                                     (SO KM)
                                                   SURFACE AREA
                                                     (SO KM)
                                                      0.93
    MEAN DEPTH
     (METERS)
       5.2
     TOTAL INFLOW
        (CMS)
    >0000000
    RETENTION TIME
        (YEARS)
    II.  PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)    CONDUCT IVITY(UMHOS)
              161.                 394.
                                                MEAN SECCHI DISC
                                                     (METERS)
                                                       2.7
        MEDIAN
     TOTAL P(MG/L)
        0.013
           MEDIAN
        ORTHO P
    -------
    NAME       - JOES VALLEY RESERVOIR
    COUNTY     - EMERY
    STORE! NO. - 4908             WORKING PAPER NO.
                                  COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES  IN UTAH
    
                                          (MESOTROPHIC)
    
                                                     841. NTIS ACCESSION NO. PB-       /AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
                                  DRAINAGE AREA
                                     (SO KM)
                                     37S.10
           SURFACE AREA
             (SU KM)
              4.74
              MEAN DEPTH
               (METERS)
                16.3
     TOTAL INFLOW
        (CMS)
       2. 836
     RETENTION TIME
         (DAYS)
         316.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
              195.                 273.
                                                MEAN SECCHI DISC
                                                     (METERS)
                                                       2.5
                               MEDIAN
                            TOTAL P(MG/L)
                               0.012
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.003
                           MEDIAN
                        INORG N(MG/L)
                           0.045
                           MEDIAN
                        TOTAL N(MG/L)
                           0.420
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL  A     ALGAL  ASSAY  CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                2.5                      0.2
                                                           LIMITING NUTRIENT  AT SAMPLING  TIME
                                                            (  5/13/75)  N
                         SUMMARY  OF  PHYTOPLANKTON  DATA
                  5/13/75                           8/12/75
       GENERA                    COUNT    GENERA
       FLAGELLATES                1354    CYCLOTELLA
       ANACYSTIS(MICROCYSTIS)     1113    DINOBRYON
       CHROOMONAS                 242    CHROOMONAS
       CARTERIA                     48    ANACYSTIS(MICHOCYSTIS)
       CRYPTOMONAS                  48    CRYPTOMONAS
       OTHER                         0    OTHER
       TOTAL
                                  2805
                                         TOTAL
                                                                 COUNT
                                                                   1976
                                                                   476
                                                                   256
                                                                   110
                                                                     73
                                                                     74
    
                                                                   2965
                                                                               (  8/12/75)  P
                                            9/24/75
                                 GENERA
                                 ANACYSTIS(MICROCYSTIS)
                                 FHAGILARIA
                                 DINOBHYON
                                 CRYPTOMONAS
    
                                 OTHER
    
                                 TOTAL
                                                                                                  (  9/24/75)  P
                                             COUNT
                                               610
                                               326
                                               163
                                                41
    
                                                39
    
                                              1179
    IV. NUTRIENT LOADING  CHARACTERISTICS(LAKE)
        A.  INPUT
         PHOSPHORUS
         NITROGEN
        «. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT  SOURCE
                       MUNICIPAL  (KG/YR)
                                            POINT SOURCE
                                            INDUSTRIAL  (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS  (KG/YR)
                            OUTLET(S)
                            (KG/YH)
                             2310.
                            87240.
     PERCENT
    RETENTION
       31.
     LOSS
                                   NON-POINT SOURCE
                                          (KG/YR)
                                          3335.
                                         82995.
                                TOTAL LOADING
                                       (KG/YH)
                                        3335.
                                      82995.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                  0.70
                 17.5
    V. NON-POINT-SOURCE HUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        LOWRY CREEK                  1.470
        LITTLES CREEK                0.
        SEELY CREEK                  1
                                        113
                                       .200
        SWANSEY  CREEK
        NORTH DRAGON CREEK
                                     0.023
                                     0.002
       DRAINAGE AREA
          (SO KM)
           186.5
            16.6
            93.2
            16.3
            38.8
           MEAN TOTAL P
              (MG/L)
               0.033
               0.124
               0.026
               0.230
               0.272
    MEAN TOTAL N
       (MG/L)
        0.649
        0.877
        1.132
        1.223
        1.861
    TOTAL P EXPORT
    (KG/SO KM/YR)
          8.
         27.
         11.
         10.
         0.4
    TOTAL N EXPORT
    (KG/SO KM/YR)
         161.
         188.
         460.
          54.
           3.
    

    -------
    NAME       - LOWER 80WNS RESERVOIR
    COUNTY     - GARFIELO
    STORET NO. - 4903             WORKING PaPER NO.
      COMPENDIUM OF NATIONAL FUTHOPHICATION SURVEY LAKES IN UTAH
    
              (MESOTROPHIC)
    
                         842, NTIS ACCESSION NO. PB-281 872/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
      DRAINAGE AREA
         (SO KM)
           SURFACE AREA
             (SO KM)
              0.36"
    MEAN DEPTH
     (METERS)
       0.1
    TOTAL INFLOW
       (CMS)
    RETENTION TIME
        (YEARS)
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)   CONDUCTIVITY(UMHOS)
               70.                120.
                    MEAN SECCHI DISC
                         (METERS)
                               MEDIAN
                            TOTAL PIMG/L)
                               0.031
                        MEDIAN
                     ORTHO P(MG/L)
                        0.006
                          MEDIAN
                        INORG  N(MG/L)
                          0.040
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                               LIMITING NUTRIENT AT SAMPLING TIME
                                                            ( 5/ 9/75) P
                                                                               ( 8/13/75)  N
                                                                                                  (  9/25/75) N
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/ 9/75
       GENERA
       CRYPTOMONAS
       CHROOMONAS
       OTHER
    
       TOTAL
                       8/13/75
    COUNT   GENERA
      286   GLOEOTRICHIA
       24   CHROOMONAS
            ANABAENA
            ANACYSTIS(MICROCYSTIS)
    
        0   OTHER
    
      310   TOTAL
    IV.
        NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
                       POINT SOUKCE
                       MUNICIPAL  (KG/YR)
                POINT SOURCE
                INDUSTRIAL (KG/YR)
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
                            OUTLET(S)
                            (KG/YR)
     PERCENT
    RETENTION
     00000
    
    COUNT
    231
    103
    51
    26
    
    0
    411
    POINT
    SEPTIC
    
    9/2
    GENERA
    CHROOMONAS
    APHANOCAPSA
    CRYPTOMONAS
    STAURASTRUM
    GLOEOTRICHIA
    OTHER
    TOTAL
    SOURCE
    TANKS (KG/YR)
    
    5/75
    COUNT
    970
    562
    357
    153
    102
    0
    2144
    NON-POINT SOURCE
    (KG/YR)
    
                           MEDIAN
                        TOTAL  N(M6/L)
                           0.530
                                                                                                  rc
                                                                                                  c
                                                                     TOTAL LOADING
                                                                           (KG/YR)
                                                                       *«*»»«*•*»
                             LAKE SURFACE AREA LOADING RATE
                                        (G/SQ M/YR)
                                                LAKE SAMPLING ONLY  ««««
    

    -------
    NAME       - LYNN RESERVOIR
    COUNTY     - BOX ELDER
    STORE! NO. - 4905
    COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES IN UTAH
    
            (EUTROPHIC)
    
    WORKING PAPER NO.  843, NTIS ACCESSION NO. PB-282 343/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT *
    DRAINAGE AREA
       (SO KM)
    SURFACE AREA
      (SO KM)
    MEAN DEPTH    TOTAL INFLOW
     (METERS)        (CMS)
    eeoooo     »»«»«««««»
                                                         RETENTION TIME
                                                             (YEARS)
                                                            «**«*«
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
              144.                318.
                  MEAN SECCHI DISC
                       (METERS)
                         2.1
                        MEDIAN
                     TOTAL P(MG/L)
                        0.121
                        MEDIAN
                     ORTHO PIMG/L)
                        0.052
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY *T)
               39.6                     12.4
                             LIMITING NUTRIENT AT SAMPLING TIME
                                                            ( 5/15/75) N
                                                                               ( 8/ 5/75) N
                                                               MEDIAN
                                                            INORG NIMG/L)
                                                               0.200
                                                                    ( 9/17/75) N
       MEDIAN
    TOTAL NtMG/L)
       0.440
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/15/75
       GENERA
       NAVICULA
       PHORMIDIUM
       PANDORINA
       CRYPTOMONAS
       TRACHELOMONAS
       OTHER
    
       TOTAL
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
                                                   8/ 5/75
    COUNT
    239
    159
    106
    80
    27
    132
    743
    GENERA
    MELOSIRA
    SCHROEDERIA
    
    
    
    OTHER
    TOTAL
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
    POINT SOURCE
    INDUSTRIAL (KG/YR)
    PHOSPHORUS
    B. OUTPUT
    hj T TDnrcrrj
    ««««»o««««
    OUTLET(S)
    (KG/YR)
    
    «»«««««»»«
    PERCENT
    RETENTION
    
                                                      9/17/75
                                   COUNT   GENERA                   COUNT
                                     386   APHANIZOMENON             7130
                                      15   SYNEDRA                   4045
                                           OIATOMA                    548
                                           ANABAENA                   548
                                           ASTERIONELLA               480
                                       0   OTHER                     2058
    
                                     401   TOTAL                    14809
                                     POINT SOURCE
                                    SEPTIC TANKS (KG/YR)
                                         NON-POINT SOURCE
                                                (KG/YR)
                                           »«*««««***
                                           ««»•**•***
                                                         LAKE SURFACE AREA LOADING RATE
                                                                    (G/SQ M/YR)
                                                                 «•*«««»«»«
                                                                 «««*««««««
                                                                                         ro
                                             TOTAL LOADING
                                                   (KG/YR)
                                                LAKE SAMPLING ONLY ««««
    

    -------
    NAME       - MINERSVILLF RESERVOIR
    COUNTY     - BEAVER
    STORE! NO. - 4909             WORKING PAPER NO.
               COMPENDIUM  OF  NATIONAL  EUTROPHICATION  SURVEY  LAKES IN UTAH
    
                       (FUTROPHIC)
    
                                  846.  NTIS  ACCESSION NO.  P8-282 022/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
               DRAINAGE AREA
                  (SO  KM)
                 1320.90
           SURFACE  AREA
             (SO  KM)
              4.01
     MEAN  DEPTH
      (METERS)
        5.6
    TOTAL INFLOW
       (CMS)
      1.037
    RETENTION TIME
        (DAYS)
        266.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
              284.                550.
                             MEAN  SECCHI  DISC
                                  (METERS)
                                    1.4
                               MEDIAN
                            TOTAL PfMG/L)
                               0.192
                         MEDIAN
                      ORTHO P(M6/L)
                         0.107
                          MEDIAN
                        INORG  N(MG/L)
                          0.060
                           MEDIAN
                        TOTAL N(M6/L>
                           1.070
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)             (MG/L—DRY WT)
               33.6                      2.9
                                        LIMITING NUTRIENT AT SAMPLING TIME
    
                                        (  5/ 8/75)  N       ( 8/12/75) N
                  5/ 8/75
       GENERA
       SYNURA
       STEPHANODISCUS
       ASTERIONELLA
       EUNOTIA
       CRYPTOMONAS
       OTHER
    
       TOTAL
                        SUMMARY OF PHYTOPLANKTON DATA
                                8/12/75
             COUNT   GENERA
              3728   PHORMIDIUM
               270   APHANIZOMENON
                90   GLOEOTRICHIA
                45   CHROOMONAS
                45   CRYPTOMONAS
                45   OTHER
    
              4223   TOTAL
                         COUNT
                          3118
                           432
                           432
                           192
                           192
                           238
                      9/25/75
           GENERA
           APHANIZOMENON
           STEPHANODISCUS
           TRACHELOMONAS
                                 OTHER
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
            1020.
            2400.
    
         OUTLET(S)
         (KG/YR)
          4450.
         36375.
    POINT SOURCE
    INDUSTRIAL 
          2435.
         23585.
                          4604   TOTAL
     POINT SOURCE
    SEPTIC TANKS (KG/YR)
    
             35.
                                                          ( 9/25/75)  N
                     COUNT
                     11379
                        646
                         50
                                         0
    
                                     12075
                                                                                                                                         ro
                                                                                                                                         rc
           NON-POINT  SOURCE
                  (KG/YR)
                   2360.
                  15970.
                TOTAL  LOADING
                      (KG/YR)
                       5815.
                      41990.
     PERCENT     LAKE SURFACE AREA LOADING RATE
    RETENTION              (G/SQ M/YR)
       23.                     1.45
       13.                     10.5
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW    DRAINAGE AREA    MEAN TOTAL P    MEAN  TOTAL  N
                                     (CMS)          (SO KM)           (MG/L)           (MG/L)
        9EAVER RIVER                 0.910         704.5            0.188            1.253
                                                                              TOTAL  P EXPORT
                                                                              (KG/SO KM/YR)
                                                                                    3.
                                                                          TOTAL N EXPORT
                                                                          (KG/SO KM/YR)
                                                                                14.
    

    -------
                                  COMPENDIUM OF NATIONAL  EUTROPHICATION  SURVEY LAKES IN UTAH
    
    NAME       - MOON LAKE                 (OLIGOTROPHIC)
    COUNT*     - DUCHESNE
    STORET NO. - 4910             WORKING  PAPER NO.   847.  NTIS  ACCESSION NO.  P8-        /AB
    
    I. MORPHOMETRY
                     LAKE TYPE    DRAINAGE AREA    SURFACE  AREA     MEAN  DEPTH    TOTAL  INFLOW    RETENTION TIME
                                      ISO KM)          (SO  KM)         (METERS)         (CMS)             (DAYS)
                     NATURAL          290.10            3.12            14.1           3.826             140.0
    
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN          MEAN  SECCHI  DISC       MEDIAN          MEDIAN          MEDIAN          MEDIAN
        ALKALINITYIMG/L)   CONDUCT IVITY(UMHOS)        (METERS)        TOTAL  P(MG/L)    ORTHO  PIMG/L)    INORG N(MG/L)   TOTAL NIMG/L)
               10.                 17.                  3.0             0.008            0.002           0.040           0.320
    
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY  CONTROL  YIELD    LIMITING NUTRIENT  AT SAMPLING TIME
               (UG/L)             (MG/L—DRY WT)
                2.7                      0.2                (  8/11/75)  P        ( 9/23/75)  P
    
                        SUMMARY OF PHYTOPLANKTON DATA
                  8/11/75                          9/23/75
       GENERA                   COUNT   GENERA                    COUNT
       CHROOMONAS                  69   CYCLOTELLA                  251
       ASTERIONELLA                34   PENNATE DIATOMS            126
       PENNATE DIATOMS             34   ASTERIONELLA                 42
                                        D1N08RYON                    42
       OTHER                        0   OTHER                         0
    
       TOTAL                      137   TOTAL                       461
    
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE I
        A. INPUT
                       POINT SOURCE         POINT  SOURCE            POINT SOURCE         NON-POINT SOURCE    TOTAL LOADING
                       MUNICIPAL  (KG/YR)    INDUSTRIAL  (KG/YR)     SEPTIC TANKS (KG/YR)         (KG/YR)              (KG/YR)
         PHOSPHORUS       ««««««»««»         «»««««>«««             »»»««««««»                 1630.               1630.
         NITROGEN         **»«o«««»«         «««o««»o<>»             oeea««««««               145445.             145445.
        B. OUTPUT
                            OUTLET(si        PERCENT      LAKE SURFACE  AREA LOADING  RATE
                            (KG/YR)         RETENTION               (G/SQ M/YR)
         PHOSPHORUS          1610.              1.                     0.52
         NITROGEN           65495.             55.                     46.6
    
    V. NON-POINT-SOURCE NUTRIENT  EXPORT
        STREAM NAME               MEAN  FLOW    DRAINAGE AREA    MEAN  TOTAL P    MEAN TOTAL N    TOTAL  P EXPORT   TOTAL N EXPORT
                                    (CMS)          (SO  KM)           (MG/L)           (MG/L)        (KG/SO KM/YR)    (KG/SO KM/YR)
        LAKE FORK RIVER               3.ZRO         202.0             0.012            1.247              6.              639.
        FISH CREEK                    0.177          25.9             0.014            0.760              3.              164.
        BROWN DUCK CREEK              0.264          36.3             0.025            0.761              6.              175.
    

    -------
    NAME       - NAVAJO LAKE
    COUNTY     - KANE
    STORE! NO. - 4911
      COMPENDIUM OF  NATIONAL EUTROPHICATION SURVEY LAKES IN UTAH
    
              (OLIGOTROPHIC)
    
      WORKING PAPER  NO.   848. NTIS ACCESSION NO. PB-277 940/AB
       MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
      DRAINAGE AREA
         (SO KM)
    SURFACE AREA
      (SCI KM)
       2.50
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
               67.                 99.
                    MEAN SECCHI DISC
                         (METERS)
                           3.3
    MEAN DEPTH TOTAL INFLOW R[
    (METERS) (CMS)
    MEDIAN
    TOTAL PIMG/L)
    0.016
    MEDIAN
    ORTHO PIMG/L)
    0.003
    iTENTION TIME
    (YEARS)
    »••»*»
    MEDIAN
    INORG N(MG/L)
    0.040
                                                                         MEDIAN
                                                                      TOTAL  NCMG/L)
                                                                         0.470
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                2.0                ««»*««»»»«
                               LIMITING NUTRIENT AT SAMPLING TIME
    
                               (  8/13/75) N       ( 9/25/75) P
                  8/13/75
       GENERA
       FLAGELLATES
       KIRCHNERIELLA
       CHHOOMONAS
       CRYPTOMONAS
       PERIOINIUM
       OTHER
    
       TOTAL
                        SUMMARY OF PHYTOPLANKTON DATA
                       9/25/75
    COUNT   GENERA
     1204   KIRCHNERIELLA
      262   TETRAEDRON
      105   COSMARIUM
       79   OOCYSTIS
       52   ELAKATOTHRIX
      104   OTHER
    
     1806   TOTAL
    IV.  NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A.  INPUT
                       POINT SOURCE
                       MUNICIPAL (KG/YR)
    POINT SOURCE
    INDUSTRIAL (KG/YR)
              »
              »
                  COUNT
                    437
                    312
                    156
                    156
                     62
                     33
    
                    1156
                                                                    POINT  SOURCE
                                                                  SEPTIC  TANKS  (KG/YR1
                                                                                                                                          ro
    PHOSPHORUS
    B. OUTPUT
    
    
    OUTLET(S)
    (KG/YR)
    »»«««»»»
    
    PERCENT
    RETENTION
    eaoee
                                                            NON-POINT SOURCE
                                                                   (KG/YR)
                                                               «««««»«««*
                                                              TOTAL LOADING
                                                                     (KG/YR)
                                                                »«•«•*•**•
                                                                *«»»***•««
                                                         LAKE  SURFACE  AREA  LOADING RATE
                                                                    (G/SQ  M/YR)
                                            *«»« LAKE SAMPLING  ONLY  «««*
    

    -------
    NAME       - NEWCASTLE RESERVOIR
    COUNTY     - IRON
    STORET NO. - 4912             WORKING PAPER NO.
    
    I. MORPHOMETRY
    II.
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A     ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY  «(T)
                12.5                ««o«»««o««
    COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN UTAH
    
            (EUTROPHIC)
    
                       849, NTIS ACCESSION NO. PB-281 874/AB
    LAKE TrPE DRAINAGE AREA
    (SO KM)
    PHYSICAL AND CHEMICAL CHARACTERISTICS
    MEDIAN MEDIAN
    ALKALINITY (MG/L) CONDUCT I V I TY (UMHOS )
    195. 573.
    SURFACE AREA
    (SO) KM)
    0.66
    MEAN SECCHI DISC
    (METERS)
    1.8
    MEAN DEPTH TOTAL INFLOW RETENTION TIME
    (METERS) (CMS) (YEARS)
    MEDIAN MEDIAN MEDIAN
    TOTAL P1MG/L) ORTHO P(MG/L) INORG NIMG/L)
    0.051 0.009 0.040
    
    MEDIAN
    TOTAL N(M6/L)
    0.470
                             LIMITING NUTRIENT  AT SAMPLING  TIME
                        SUMMARY OF PHYTOPLANKTON  DATA
                  5/ 8/75
       GENERA
       STEPHANODISCUS
       NITZSCHIA
       CHROOMONAS
       GLENODINIUM
       SCHROEDERIA
       OTHER
    
       TOTAL
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A.  INPUT
    
    COUNT
    6117
    1001
    278
    56
    56
    0
    7508
    8/13/75
    GENERA
    ELAKATOTHRIX
    CYCLOTELLA
    OOCYSTIS
    EUDORINA
    
    OTHER
    TOTAL
                                                            I  5/  8/75)  N
                                   COUNT
                                    1771
                                     227
                                      91
                                      45
    
                                       0
    
                                    2134
                                                 ( 8/13/75) N
                      9/26/75
           •GENERA
           ASTERIONELLA
           OOCYSTIS
           FRAGILARIA
           SYNEDHA
           APHANIZOMENON
           OTHER
    
           TOTAL
                                                                    (  9/26/75)  P
              COUNT
               3798
               182S
                831
                592
                543
               1043
    
               8632
                               ro
                               en
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
              POINT SOURCE
              INDUSTRIAL (KG/YR)
    PHOSPHORUS
    fl. OUTPUT
    PHOSPHORUS
    MT TtfnriFN
    
    OUTLET (S)
    (KG/YR)
    
    PERCENT
    RETENTION
    oeooo
    OOOOO
     POINT SOURCE
    SEPTIC TANKS (KG/YR)
      oooooooooo
      oooooooooo
    NON-POINT SOURCE
          (KG/YR)
      0000000000
    TOTAL LOADING
          (KG/YR)
      ooeoooeo**
      •»**«**»•«
                                                          LAKE  SURFACE  AREA  LOADING RATE
                                                                    (G/SO  M/YR)
                                                 LAKE  SAMPLING  ONLY  »»««
    

    -------
    NAME       - OTTER CREEK RESERVOIR
    COUNTY     - PIOTE
    STORET NO. - 4913             WORKING PAPER NO.
    
    I. MORPHOMETRY
          COMPENDIUM OF  NATIONAL  EUTROPHICATION SURVEY LAKES IN UTAH
    
                  (EUTROPHIC)
    
                             850, NTIS ACCESSION NO.  PB-277 939/AB
    
    II.
    LAKE TYPE DRAINAGE AREA
    (SO KM)
    IMPOUNDMENT 984.20
    PHYSICAL AND CHEMICAL CHARACTERISTICS
    MEDIAN MEDIAN
    ALKALINITY(MG/L) CONDUCTIVITY (UMHOS)
    187. 365.
    SURFACE AREA
    (SO KM)
    10.20
    MEAN SECCHI DISC
    (METERS)
    1.2
    MEAN DEPTH TOTAL INFLOW RETENTION TIME
    (METERS) (CMS) (YEARS)
    6.3 1.613 1.4
    MEDIAN MEDIAN MEDIAN
    TOTAL PIMG/L) ORTHO P(MG/L) INORG N(MG/L)
    0.067 0.033 0.040
    
    MEDIAN
    TOTAL MMG/L)
    0.420
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
               11.8                 2.5 -   4.2 ( 2)
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/ 9/75
       GENERA                   COUNT   GENERA
       CYCLOTELLA                5323   FRAGILARIA
       FLAGELLATES               1331   ANABAENA
       CHROOMONAS                1065   CERATIUM
       CHLAMYOOMONAS              R87   MELOSIRA
       CRYPTOMONAS                444   CRYPTOMONAS
       OTHER                      486   OTHER
    
       TOTAL                     9536   TOTAL
                                                   8/13/75
                   LIMITING NUTRIENT AT SAMPLING TIME
    
                   (  5/ 9/7b)  N       ( 8/13/75) N
    
    
                                            9/25/75
    COUNT
    4919
    642
    214
    214
    53
    106
    GENERA
    CRYPTOMONAS
    ANABAENA
    CERATIUM
    
    
    OTHER
    IV.
    NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOURCE
                   MUNICIPAL (KG/YR)
     PHOSPHORUS       »«»«*•««««
     NITROGEN         «««««««»•«
    8. OUTPUT
                                            POINT SOURCE
                                            INDUSTRIAL  (KG/YR)
                                             eooooooooo
                                             oooooaoooo
                                          6148   TOTAL
                                           POINT SOURCE
                                          SEPTIC TANKS (KG/YR)
                                            oooooooooo
                                                                          ( 9/25/75)  N
                                                                          COUNT
                                                                            446
                                                                              74
                                                                              74
                                                                            594
                                                                                                                  ro
                                                NON-POINT SOURCE
                                                       (KG/YR)
                                                       6415.
                                                       91475.
                                 TOTAL  LOADING
                                       (KG/YR)
                                        6415.
                                       9U75.
         PHOSPHORUS
         NITROGEN
    OUTLET(S)
    (KG/YR)
     4305.
    54970.
     PERCENT     LAKE SURFACE AREA LOADING RATE
    RETENTION              (G/SQ M/YR)
       33.                     0.63
       40.                      9.0
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        OTTER CREEK                  0.352
        EAST FORK CANAL              1.230
                       DRAINAGE AREA
                          (SQ KM)
                           854.7
                        MEAN TOTAL P
                           (MG/L)
                            0.121
                            0.123
    MEAN TOTAL N
       (MG/L)
        2.265
        1.369
                                                                                             TOTAL P EXPORT
                                                                                             (KG/SO KM/YR)
                                                                                                   2.
                                                                                           »«»*«»«»««
     TOTAL N EXPORT
     (KG/SO KM/YR)
           29.
    *•**•**•*•
    

    -------
    NAME
    COUNTY
    STORE! NO.
    - PANGUITCH L4KE
    - 6ARFIELO
    - 4914
    COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY  LAKES  IN  UTAH
    
            (EUTHOPHIC)
    
    WORKING PAPER NO.  851. NTIS ACCESSION NO.  PB-aai 875/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
                       DRAINAGE AREA
                           (SO KM)
                           121.70
                     SURFACE AREA
                       (SO KM)
                        4.99
              MEAN DEPTH
               (METERS)
                 6.4
    TOTAL INFLOW
       (CMS)
      0.748
    RETENTION TIME
        (YEARS)
          2.2
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
               98.                172.
                                     MEAN SECCHI DISC
                                          (METERS)
                                             1.9
                                         MEDIAN
                                      TOTAL PfMG/L)
                                         0.071
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.010
                          MEDIAN
                       INORG N(MG/L)
                          0.040
                          MEDIAN
                       TOTAL N(MG/L)
                          1.020
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
               46.0                      8. f<
    
                        SUMMARY OF PHYTOPLANKTON DATA
                                                LIMITING  NUTRIENT  AT  SAMPLING TIME
                                                 (  8/13/75)  N
                                                                    (  9/25/75)  N
                  8/13/75
       GENERA                   COUNT
       APHANIZOMENON              3127
       FRAGILARIA                  324
       ANACYSTIS(MICROCYSTIS)      118
       SPHAEROCYSTIS                88
       CRYPTOMONAS                  88
       OTHER                        90
    
       TOTAL                      3835
                                        9/25/75
                             GENERA
                             APHANIZOMENON
                             OTHER
                                         TOTAL
                                   COUNT
                                    8979
                                                                                                                              FO
    IV. NUTRIENT LOADING  CHARACTF.RIST ICS (LAKE)
        A.  INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT  SOURCE
                       MUNICIPAL  (KG/YR)
                                 POINT  SOURCE
                                 INDUSTRIAL  (KG/YRI
                 OUTLET(S)
                 (KG/YR)
                  1350.
                 2289b.
               PERCENT
              RETENTION
                 26.
                 11.
                                                        8979
                                      POINT  SOURCE
                                    SEPTIC  TANKS  (KG/YR)
                                              20.
                                             695.
                                   NON-POINT SOURCE
                                          (KG/YR)
                                           1795.
                                          25160.
                               TOTAL  LOADING
                                      (KG/YR)
                                       1815.
                                      25855.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                  0.36
                   5.2
       NON-POINT-SOURCE NUTRIENT  EXPORT
        STREAM NAME                MEAN FLOW
                                     (CMS)
        BLUE SPRING CREEK             0.400
        IPSON CREEK                   n.?08
        CLEAR CREEK                   0.092
                                    DRAINAGE  AREA
                                        (SQ  KM)
                                          41.4
                                          2b.5
                                          31.1
                                  MEAN  TOTAL  P
                                      (MG/L)
                                      0.067
                                      0.098
                                      0.050
                           MEAN TOTAL N
                               (MG/L)
                               0.9b3
                               0.933
                               0.285
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                        20.
                        23.
                         5.
                    TOTAL N  EXPORT
                    (KG/SO KM/YR)
                         300.
                         215.
                          27.
    

    -------
    NAME       - PELICAN LAKE
    COUNTY     - UINTAH
    STORE! NO. - 4915
          COMPENDIUM  OF  NATIONAL  EUTROPHICATION  SURVEY  LAKES IN UTAH
    
                  (EUTROPHIC)
    
          WORKING PAPER  NO.   852.  NTIS  ACCESSION NO.  PB-277  937/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
          DRAINAGE AREA
             (SO KM)
              25.90
               SURFACE  AREA
                 (SO KM)
                  6.88
              MEAN DEPTH
               (METERS)
                 3.0
    TOTAL INFLOW
       (CMS)
      0.136
    RETENTION TIME
        (YEARS)
         36.8
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)   CONDUCTIVITY(UMHOS)
              382.                897.
                        MEAN SECCHI  DISC
                             (METERS)
                               1.6
                                   MEDIAN
                                TOTAL PIMG/L)
                                   0.044
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.004
                           MEDIAN
                        INORG  N(MG/L)
                           0.050
                           MEDIAN
                        TOTAL N(MG/L)
                           0.920
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/D             (MG/L—DRY WT)
                6.3                      1.9
                                   LIMITING NUTRIENT AT SAMPLING TIME
    
                                   (  5/13/75)  N       { 8/ 7/75) P
                                                              ( 9/23/75)  P
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/13/75
       GENERA
       CHLAMYDOMONAS
       FRAGILARIA
       CHROOMONAS
       CRYPTOMONAS
       SCENEOESMUS
       OTHER
    
       TOTAL
                                                   8/ 7/75
        COUNT
          801
          616
          493
          246
           62
            0
    GENERA
    TETRAEORON
    FRAGILARIA
    CHROOMONAS
    CRYPTOMONAS
    OOCYSTIS
    OTHER
                               9/23/75
            COUNT   GENERA                   COUNT
              376   CHLOKOPHYTAN CELLS       70495
              282   ANACYSTIS(MICROCYSTIS)    2287
              235   DACTYLOCOCCOPSIS          1334
              188   MERISMOPEDIA               953
              141   OSCILLATOHIA               667
              377   OTHER                      284
                                 2218   TOTAL
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        6. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOUHCE
                       MUNICIPAL (KG/YR)
                    POINT SOURCE
                    INDUSTRIAL (KG/YR)
                                          1599   TOTAL
                               POINT SOURCE
                              SEPTIC TANKS (KG/YR)
    OUTLET(S)
    (KG/YR)
       45.
      700.
         PERCENT
        RETENTION
           95.
           95.
                                                                          76020
                                   NON-POINT SOURCE
                                          (KG/YR)
                                           915.
                                          13820.
                                                                                                     ro
                                                                                                     50
                                TOTAL LOADING
                                      (KG/YR)
                                        915.
                                      13820.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                  0.13
                   2.0
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        UNNAMED CANAL Cl             0.123
                       DRAINAGE AREA
                          (SO KM)
                            MEAN TOTAL P
                               (MG/L)
                                0.200
                           MEAN TOTAL N
                              (MG/L)
                               1.609
                    TOTAL P EXPORT
                    (KG/SO KM/YR)
                     TOTAL N EXPORT
                     (KG/SO KM/YR)
                    *•**»•*••*
    

    -------
    NAME .
    COUNTY
    - PINEVIEW RESERVOIR
    - WEBER
                                  COMPENDIUM  OF NATIONAL  EUTROPHICAT ION SURVEY LAKES IN UTAH
    
                                           (EUTROPHIC)
    STORET NO. - 4916
    
    I. MORPHOMETRY
                       WORKING PAPER NO.  853. NTIS  ACCESSION  NO.  PB-277  936/AB
                     LAKE TYPE
                     IMPOUNDMENT
                       DRAINAGE AREA
                           (SO KM)
                           80?.90
                                                    SURFACE  AREA
                                                      (SO  KM)
                                                      10. 12
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
              110.                 197.
                                     MEAN SECCHI  DISC
                                           (METERS)
                                             1.6
                               MEAN DEPTH
                                 (METERS)
                                 13.4
                            TOTAL INFLOW
                               (CMS)
                              6.343
                                   MEDIAN
                                TOTAL P(MG/L)
                                   0.028
                            RETENTION TIME
                                 (DAYS)
                                 248.0
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.006
                                  MEDIAN
                               INORG NIMG/L)
                                  0.300
                         MEDIAN
                      TOTAL N(MG/L)
                         0.740
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                5.7                      0.2
                                                 LIMITING NUTRIENT  AT  SAMPLING TIME
                                                 (  5/14/75)  P
                                                                    (  8/  7/75)  P
                                                                                       (  9/23/75) P
                        SUMMARY OF PHYTOPLANKTON  DATA
                  5/14/75 .
       GENERA
       CHROOMONAS
       CHYPTOMONAS
       CHLAMYDOMONAS
       SCHROEOERIA
       FLAGELLATES
       OTHER
    
       TOTAL
                                                    8/  7/75
                     COUNT
                      2552
                      1411
                       489
                       326
                       217
                       217
    GENERA
    FLAGELLATES
    CRYPTOMONAS
    CHROOMONAS
    CYSTS
    SCHROEOERIA
    OTHER
                                  5212    TOTAL
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A.  INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                                 POINT SOURCE
                                 INDUSTRIAL  (KG/YR)
                 OUTLET(S)
                 (KG/YR)
                  7775.
                 189145.
         PERCENT
        RETENTION
         LOSS
           12.
            COUNT
              681
              306
              211
              11B
              118
               69
               9/23/75
    GENERA
    FRAGILAKIA
    APHANIZOMENON
    CHHOOMONAS
    CRYPTOMONAS
    STEPHANODISCUS
    OTHER
                                                        1503   TOTAL
                               POINT SOURCE
                              SEPTIC TANKS  (KG/YR)
                                       25.
                                      855.
    COUNT
      332
      166
      166
      165
       41
        0
    
      870
                                   NON-POINT SOURCE
                                          (KG/YR)
                                          7215.
                                        214310.
                                       TOTAL  LOADING
                                              (KG/YR)
                                               7240.
                                            215165.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                 0.72
                  21.3
    V. NUN-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        NJ.S 8H.. S. FK. OGDEN R.      2.200
        MIDDLE FK. OGOEN RIVER        o.s89
        GERSTEN CREEK                 0.130
        N. FK. OGOEN RIVER            1.000
        SPRING CREEK                  0.270
        UNNAMED CANAL HI              0.066
        GROUND WATEK                  1.558
                                    DRAINAGE  AREA
                                        (SO  KM)
                                        440.3
                                         85.5
                                         17.1
                                        160.6
                                         19.4
                            MEAN TOTAL P
                                (MG/L)
                                0.036
                                0.020
                                0.076
                                0.024
                                0.056
                                0.032
                           MEAN TOTAL N
                              (MG/L)
                               0.977
                               0.650
                               0.897
                               1.243
                               1.467
                               1.048
                           TOTAL P EXPORT
                           (KG/SO KM/YH)
                                 6.
                                 4.
                                18.
                                 5.
                                24.
                   TOTAL N EXPORT
                   (KG/SU KM/YR)
                        154.
                        141.
                        215.
                        244.
                        644.
    

    -------
    NAME       - PIUTE RESERVOIR
    COUNTY     - PIUTE
    STOHET NO. - 4917
           COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN UTAH
    
                   (EUTROPHIC)
    
           WORKING  PAPER NO.  85*, NTIS ACCESSION NO. PB-281 880/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
           DRAINAGE  AREA
              (SO  KM)
             6319.60
               SURFACE AREA
                 (SCI KM)
                 10.15
              MEAN  DEPTH
               (METERS)
                10.1
            TOTAL INFLOW
               (CMS)
              4.917
    RETENTION TIME
        (DAYS)
        339.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
              269.                394.
                        MEAN SECCHI DISC
                              (METERS)
                                0.4
                                   MEDIAN
                                TOTAL PIMG/L)
                                   0.047
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.007
                                   MEDIAN
                                INORG  NfMG/L)
                                   0.150
                           MEDIAN
                        TOTAL N1MG/L)
                           0.680
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)             (MG/L—DRY WT)
               25.3                      0.2
                                    LIMITING NUTRIENT  AT  SAMPLING TIME
                                    (  5/  9/75) P
                                                       (  8/13/75)  P
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/ 9/75
                                                   8/13/75
                                                                                    9/24/75
       GENERA
       DIATOMA
       DINOBRYON
       CYCLOTELLA
       CRYPTOMONAS
       GYMNODINIUM
       OTHER
    
       TOTAL
         COUNT
         10007
          1943
           426
            BO
            80
            79
    GENERA
    MALLOMONAS
    CRYPTOMONAS
    CHROOMONAS
    OOCYSTIS
    STAURASTRUM
    OTHER
            COUNT
              489
              383
              349
               70
               70
              105
    GENERA
    CYCLOTELLA
    MALLOMONAS
    CRYPTOMONAS
    EUGLENA
    SCHROEDERIA
    OTHER
                                 12615   TOTAL
    IV. NUTRIENT LOADING CHARACTERISTICS (LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOUHCE
                       MUNICIPAL  (KG/YR)
                     POINT  SOURCE
                     INDUSTRIAL  (KG/YR)
                                           1466    TOTAL
                               POINT SOURCE
                              SEPTIC TANKS (KG/YR)
                                                                          (  9/24/75) N
     COUNT
      1635
      1372
       739
       369
       369
       897
    
      5381
                                                                                                                  cc
                                                                                                                  o
     OUTLET(S)
     (KG/YR)
     10855.
    204J70.
         PERCENT
        RETENTION
           47.
           25.
                                   NON-POINT SOURCE
                                          (KG/YR)
                                          20655.
                                        273815.
                                        TOTAL LOADING
                                              (KG/YR)
                                              20655.
                                             273815.
    LAKE SURFACE AftEA LOADING RATE
              (G/SQ M/YR)
                  2.03
                  27.0
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        SEVIER RIVER                 2.860
        E FORK SEVIER RIVER          1.870
        WEST CANAL                   0.036
                        DRAINAGE AREA
                           (SGI KM)
                           3185.7
                           2952.6
                            MEAN TOTAL P
                               (MG/L)
                                0.174
                                0.070
                                0.061
                           MEAN TOTAL N
                               (MG/L)
                               1.893
                               1.405
                               1.245
                            TOTAL P EXPORT
                            (KG/SO KM/YR)
                                  5.
                                  I.
                     TOTAL N EXPORT
                     (KG/SO KM/YR)
                           54.
                           28.
                    »***••*•••
    

    -------
                                  COMPENDIUM OF  NATIONAL  EUTROPHICATI0rt SURVEY LAKES IN UTAH
    NAME       - PORCUPINE RESERVOIR       (EUTROPHIC)
    COUNTY     - CACHE
    STOHET NO. - 4918             WORKING  PAPER  NO.   85b.
    
    I. MORPHOMETRY
    II.
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                7.9                      2.0
     NTIS ACCESSION NO. PB-
                                  /AB
    LAKE TYPE DRAINAGE AHEA
    (SO KM)
    PHYSICAL AND CHEMICAL CHARACTERISTICS
    MEDIAN MEDIAN
    ALKAL INI TY (MG/L ) CONDUCT IV I TY (UMHOS )
    163. 238.
    SURFACE AREA
    (SOI KM)
    0.77
    MFAN SECCHI DISC
    (METERS)
    1.5
    MEAN DEPTH TOTAL INFLOW RETENTION TIME
    (METERS) (CMS) (YEARS)
    MEDIAN MEDIAN MEDIAN
    TOTAL PIMG/L) OHTHO P(MG/L) INORG N(MG/L)
    0.025 0.011 0.110
    
    MEDIAN
    TOTAL N(MG/L)
    0.410
      LIMITING NUTRIENT AT SAMPLING TIME
                        SUMMARY OF PHYTOPLANKTON  DATA
                  5/14/75
                                                    8/  6/75
       GENERA
       CHROOMONAS
       DINOBRYON
       CRYPTOMONAS
       OTHER
    
       TOTAL
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
    COUNT
    3196
    761
    203
    
    
    0
    4160
    GENERA
    DINOBRYON
    CYCLOTELLA
    CRYPTOMONAS
    OOCYSTIS
    PERIDINIUM
    OTHER
    TOTAL
    V75) P
    ( 8/ 6/75)
    N
    9/23/75
    COUNT
    1147
    688
    191
    76
    38
    40
    GENERA
    CYCLOTELLA
    MELOSIRA
    DINOBRYON
    ASTERIONELLA
    CRYPTOMONAS
    OTHER
    
    
    
    
    
    
    
                                                                   2180
                                                                          TOTAL
                                             ( 9/23/75) P
                                             COUNT
                                               887
                                               242
                                               202
                                               161
                                               121
                                               121
    
                                               1734
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
       ao»4000004
                                            POINT  SOURCE
                                            INDUSTRIAL  
              POINT SOURCE
             SEPTIC TANKS (KG/YR)
                                                NON-POINT SOURCE
                                                       (KG/YR)
                            OUTLET (S)
                             (KG/YR)
     PERCENT
    RETENTION
     tt«04»
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
            ooooeeoooa
    TOTAL LOADING
          (KG/YR)
      »«•*»*•***
      *••«»*•«*«
                                            »»««  LAKE  SAMPLING ONLY  «•*«
    

    -------
    NAME       - PRUESS LAKE
    COUNTY     - MILLARO
    STORET NO. - 4919
      COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES  IN  UTAH
    
              (FUTROPHIC)
    
      WORKING P«PER NO.  «56. NTIS ACCESSION NO. pe-281
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
      DRAINAGE AREA
         (SO KM)
           SURFACE  AREA
             (S(J  KM)
              1 .46
    MEAN DEPTH
     (METERS)
       3.8
    TOTAL INFLOW
       (CMS)
    RETENTION TIME
        (YEARS)
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
              455.                949.
                    MFAN SECCHl DISC
                         (METERS)
                           0.2
                               MEDIAN
                            TOTAL PIMG/L)
                               0.057
                        MEDIAN
                     ORTHO P(MG/L>
                        0.008
                           MEDIAN
                        INORG NIMG/L)
                           0.140
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MFAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY fcT)
                               LIMITING NUTRIENT AT SAMPLING  TIME
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/ 8/75
       GENERA
       DACTYLOCOCCOPSIS
       CHROOMONAS
       OTHER
    
       TOTAL
                       8/13/75
    COUNT   GENERA
     2732   SCHROEOEPIA
      102   SPHAEROCYSTIS
            STEPHANODISCUS
        0   OTHER
    
     2834   TOTAL
    /75) N
    ( 8/13/75)
    N
    9/26/75
    COUNT
    154
    61
    31
    
    
    0
    246
    GENERA
    SCHROEDERIA
    SPHAEHOCYSTIS
    CRYPTOMONAS
    APHANIZOMENON
    EUGLENA
    OTHER
    TOTAL
    
    
    
    
    
    
    
    
                                                                                                   ( 9/26/75)  P
                                                           COUNT
                                                              72
                                                              48
                                                              24
                                                              24
                                                              24
                                                               0
    
                                                             192
     IV. NUTRIENT LOADING CHAWACTERISTICS(LAKE)
        A.  INPUT
                           MEDIAN
                        TOTAL N(MG/L)
                           0.920
                                                                             rc
                        POINT  SOURCE
                        MUNICIPAL  (KG/YR)
                POINT SOURCE
                INDUSTRIAL  (KG/YR)
         PHOSPHORUS
         NITROGEN
        *. OUTPUT
         PHOSPHORUS
         Nil
                             OUTLF.T (S)
                             (KG/YH)
                           POIiMT SOURCE
                          SEPTIC TANKS (KG/YR)
                            oooooooooo
                          NON-POINT SOURCE
                                (KG/YR)
     PEHCENT
    RETENTION
     eoooe
                                TOTAL LOADING
                                      (KG/YR)
                                  •o*«******
                                  *«•«•»*•••
                             LAKE SURFACE AREA LOADING RATE
                                        (G/SQ M/YR)
                                            «««• LAKF  SAMPLING ONLY »»««
    

    -------
    NAME       - SEVIER BRIDGE RESERVOIR
    COUNTY     - JUAB« SANPETE
    STOHET NO. - 4920             WORKING PAPER NO.
               COMPENDIUM OF NATIONAL EUTROPhICAT ION SURVEY LAKES  IN UTAH
    
                       (EUTROPHIC)
    
                                  857. NTIS ACCESSION NO. PB-279 104/AB
    I. MORPHOMETRY
                     LAKE TYPE
                     IMPOUNDMENT
               DRAINAGE AREA
                  (SO KM)
                13260.80
                                                    SURFACE  AREA
                                                      (SO  KM)
                                                      44.52
                           MEAN DEPTH
                            (METERS)
                              6.5
                            TOTAL INFLOW
                               (CMS)
                              5.923
     RETENTION TIME
         (YEARS)
           1.6
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
              369.                1996.
                             MEAN SECCHI DISC
                                  (METERS)
                                    1.3
                               MEDIAN
                            TOTAL P(M6/L)
                               0.026
                                  MEDIAN
                               ORTHO PfMG/L)
                                  0.006
           MEDIAN
        INORG N(MG/L)
           0.355
          MEDIAN
       TOTAL NIMG/L)
          1.010
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY WT)
                18.2                  0.4 -   0.4  (  2)
                                        LIMITING NUTRIENT AT SAMPLING TIME
                        SUMMARY OF PHYTOPLANKTON  DATA
                  S/12/  0
       GENERA
       ELAKATOTHKIX
       SYNEORA
       CHROOMONAS
       CRYPTOMONAS
       OIATOMA
       OTHER
    
       TOTAL
                                8/12/ 0
             COUNT   GENERA
              1191   CRUCIGENIA
               496   OOCYSTIS
               347   CRYPTOMONAS
               248   APHANIZOMENON
               149   FRAGILAHIA
               100   OTHER
    
              2531   TOTAL
                                         ( 5/12/75) f
                         COUNT
                          2309
                           553
                           553
                           520
                           390
                          1400
    
                          5725
                                                            ( 8/12/75) P
                                                                                     9/24/  0
                    GENERA
                    CYCLOTELLA
                    NITZSCHIA
                    TETRASTRUM
                    CRYPTOMONAS
                    SKELETONEMA
                    OTHER
    
                    TOTAL
                                                                                                  {  9/24/75)  P
      COUNT
        937
        386
        331
        331
        331
       1268
    
       3584
    IV. NUTRIENT LOADING CHARACTERISTICS (LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
            2885.
            8275.
    
         OUTLET(S)
         (KG/YR)
          4035.
        258715.
                                            POINT  SOURCE.
                                            INDUSTRIAL  (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
                                   NON-POINT SOURCE
                                          (KG/YR)
                                          30535.
                                        733870.
                TOTAL LOADING
                      (KG/YR)
                      33420.
                     74214S.
     PERCENT
    RETENTION
       R8.
       65.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                  0.75
                  16.7
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLO**
                                     (CMS)
        SEVIER RIVER                 5.720
                            DRAINAGE AREA
                               (SO KM)
                              12742.8
                        MEAN TOTAL P
                           (MG/L)
                            0.167
                           MEAN TOTAL N
                              (MG/L)
                               3.690
    TOTAL P EXPORT
    (KG/SO KM/YR)
          2.
    TOTAL N EXPORT
    (KG/SO KM/YR)
          52.
    

    -------
    NAME       - STARVATION RESERVOIR
    COUNTY     - DUCHESNE
    STORET MO. - 4921             WORKING PAPER NO.
          COMPENDIUM OF  NATIONAL  EUTHOPMICAT ION SURVEY LAKES IN UTAH
    
                  MESOTROPHIC)
    
                             85«.  NTIS ACCESSION NO.  Pd-381 888/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
          DRAINAGE AREA
             (SO KM)
            2746.40
               SURFACE AREA
                 (SO KM)
                 11.17
      MEAN DEPTH
       (METERS)
        19.9
    TOTAL INFLOW
       (CMS)
      5.834
    RETENTION TIME
        (YEARS)
          1.8
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)   CONDUCTIVITY(UMHOS)
              290.                523.
                        MEAN SECCHI  DISC
                             (MtTERS)
                               2.7
                                   MEDIAN
                                TOTAL P(MG/L)
                                   0.016
                          MEDIAN
                       OHTHO PIMG/L)
                          0.004
                           MEDIAN
                        INORG N(MG/L)
                           0.040
                           MEDIAN
                        TOTAL N(M6/L)
                           0.320
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
                (UG/L)              (MG/L—DRY WT)
                5.7                *««»«»»«««
                                   LIMITING NUTRIENT AT SAMPLING TIME
    
                                   (  5/13/75)  N       ( 8/11/75) N
                        SUMM4RY OF PHYTOPLANKTON DATA
                  S/13/7S
       GENERA
       STEPHANODISCUS
       FRAGILARIA
       ASTERIONELLA
       DIATOMA
    
       OTHER
    
       TOTAL
                                                   8/11/75
        COUNT
         1179
          937
          514
           30
    GENERA
    OOCYSTIS
    CHROOMONAS
    DINOBRYON
    CKYPTOMONAS
            0   OTHFR
    
         2660   TOTAL
                       9/34/75
    COUNT   GENERA
      165   CHROOMONAS
      110   CKYPTOMONAS
       82   STEPHANODISCUS
       55   ANKISTRODESMUS
            MALLOMONAS
        0   OTHER
    
      412   TOTAL
                                                              (  9/34/75)  N
                      COUNT
                        135
                         94
                         63
                         63
                         31
                          0
    
                        376
                                                                                                       co
     IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGFN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                    POINT SOURCE
                    INDUSTRIAL (KG/YR)
                               POINT SOURCE
                              SEPTIC TANKS  (KG/YR)
    OUTLET(S)
    (KG/YR)
     2770.
    P7863.
         PERCENT     LAKE SURFACE AREA LOADING RATE
        RETENTION               (G/SQ M/YR)
           91.                     3.70
           77.                     34.0
                           NON-POINT  SOURCE
                                  (KG/YR)
                                  30175.
                                 380310.
                                TOTAL LOADING
                                      (K6/YR)
                                      3017!>.
                                     380310.
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME                MEAN FLOW
                                     (CMS)
        STRAWBERRY RIVER              4.110
        OUCHESNE  RIVER DIVERSION      1.714
                       DRAINAGE AREA
                          (SQ KM)
                          2382.8
                            MEAN TOTAL P
                                (MG/L)
                                0.184
                                0.045
                   MEAN  TOTAL  N
                       (MG/L)
                       1.659
                       1.000
                    TOTAL P EXPORT
                    (KG/SO KM/YR)
                         10.
                  •*««*••*••
                     TOTAL N EXPORT
                     (KG/SQ KM/YR)
                           89.
    

    -------
    NAME       - STEINAKER RESERVOIR
    COUNTY     - UINTAH
    STORET NO. - 4922             WORKING PAPER NO.
    
    I. MORPHOMETRY
                               COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN UTAH
    
                                       (MESOTROPHIC)
    
                                                  859. NTIS ACCESSION NO. PB-281 876/AB
                     LAKE TYPE
    
                     IMPOUNDMENT
                               DRAINAGE AREA
                                  (SO KM)
                                   54.40
                                                   SURFACE AREA
                                                     (SO KM)
                                                      3.32
    MEAN DEPTH
     (METERS)
      14.0
    TOTAL INFLOW
       (CMS)
      0.804
    RETENTION TIME
        (YEARS)
          2.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)    CONDUCT IVITY(UMHOS)
              100.                238.
                                                MEAN SECCHI DISC
                                                     (METERS)
                                                       4.7
        MEDIAN
     TOTAL P(MG/L)
        0.011
          MEDIAN
       ORTHO P(MG/L)
          0.005
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
                (UG/L)              (MG/L—DRY WT)
                1.8                «««»««»«»«
                                                        LIMITING NUTRIENT  AT SAMPLING  TIME
    
                                                        ( 5/13/75) N        ( 8/ 7/75)  P
                                                                                                     MEDIAN
                                                                                                  INORG  N(MG/L)
                                                                                                     0.040
                                                                                                  (  9/22/75)  N
                          MEDIAN
                       TOTAL N(MG/L)
                          0.220
                        SUMMARY OF PHYTOPL ANKTON DATA
               5/13/75
    GENERA                   COUNT   GENERA
    CHROOMONAS                 533   APHANOCAPSA
    CRYPTOMONAS                267   CHROOMONAS
    ANKISTRODESMUS             200   SCHROEDERIA
    CYCLOTELLA                  33
    OTHER                        0   OTHER
    
    TOTAL                     1033   TOTAL
                                                   8/  7/75
                                                                                    9/22/75
                                                                 COUNT   GENERA                   COUNT
                                                                   253   APHANOCAPSA                 201
                                                                    9b   CHROOMONAS                  134
                                                                    32   ASTERIONELLA                 34
    
                                                                     0   OTHER                         0
    
                                                                   380   TOTAL                       369
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                                         POINT SOURCE
                                         INDUSTRIAL  (KG/YR)
                                                                   POINT SOURCE
                                                                  SEPTIC TANKS  (KG/YR)
    PHOSPHORUS
    B. OUTPUT
    PHOSPHORUS
    NITROGEN
    
    OUTLET(S)
    (KG/YR)
    460.
    1816b.
    
    PERCENT
    RETENTION
    LOSS
    0.
                         NON-POINT SOURCE
                               (KG/YR)
                                 365.
                                                         LAKE SURFACE  AREA  LOADING RATE
                                                                    (G/SO  M/YR)
                                                                       0.11
                                                                        5.5
    V. NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME
    
        STEINAKER FEEDER CANAL
        STEINAKE* DITCH
        STEINAKER DRAW
        SPRING
                               TOTAL LOADING
                                     (KG/YH)
                                                                                                                   18235.
    MEAN FLOW
    , (CMS)
    0. 754
    
    0.013
    n n I •*
    DRAINAGE AREA
    (SO KM)
    
    
    17.1
    1 h.h
    MEAN TOTAL P
    (MG/L)
    0.012
    
    
    MEAN TOTAL N
    (MG/L)
    0.585
    
    
    TOTAL P 1
    (KG/SQ Kl
    
    
    0.3'
    n_ v
                                                                                                      EXPORT    TOTAL N EXPORT
                                                                                                      M/YR)     (KG/SQ KM/YR)
                                                                                                              •««««»«•*•
                                                                                                              «»»»««««*»
                                                                                                      .«               12.«
                                                                                                      .«               12.*
                                                                                                                                         CO
        « ESTIMATED
    

    -------
    NAME
    COUNTY
    - TROPIC RESERVOIR
    - GARFIELD
    STORET NO. - 4923
    
    I. MORPHOMETRY
      COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES IN UTAH
    
              (MESOTROPHIC)
    
      WORKING PAPER NO.   860. NTIS ACCESSION NO. PB-281 012/AB
    LAKE TYPE
    
    IMPOUNDMENT
                                  DRAINAGE AREA
                                      (SO KM)
                                      217.60
                       SURFACE AREA
                         (SO KM)
                          0.73
                                                        MEAN DEPTH
                                                          (METERS)
                                                           3.0
    TOTAL INFLOW
       (CMS)
      0.463
                                                                                                  RETENTION TIME
                                                                                                      (DAYS)
                                                                                                       56.0
    II.  PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)    CONDUCTIVITY(UMHOS)
              170.                218.
                                                MEAN SECCHI DISC
                                                     (METERS)
                                                       1.9
                                           MEDIAN
                                        TOTAL PIMG/L)
                                           0.021
                                                                             MEDIAN
                                                                         ORTHO  PIMG/L)
                                                                             0.006
                          MEDIAN
                        INORG  NIMG/L)
                          0.050
                                                                                                        MEDIAN
                                                                                                    TOTAL  NIMG/L)
                                                                                                        0.420
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY1 CONTROL YIELD
               (UG/L)              (MG/L — DRY W1 >
                1.2                      0.2
                               LIMITING NUTRIENT AT SAMPLING TIME
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/ 8/75
       GENERA
       OSCILLATORIA
       OTHER
    
       TOTAL
                       8/14/75
    COUNT   GENERA
       14   GLOEOTRICHIA
            CHROOMONAS
            ANARAENA
            STAURASTHUM
        0   OTHER
    
       14   TOTAL
    i/75) P
    ( 9/25/75)
    N
    9/25/75
    COUNT
    4660
    9b
    65
    33
    0
    4856
    GENERA
    CHROOMONAS
    CRYPTOMONAS
    PEOIASTRUM
    
    OTHER
    TOTAL
    
    
    
    
    
    
    
                                                                      (  8/14/75)  N
                                                                                        COUNT
                                                                                           80
                                                                                           40
                                                                                           20
    
                                                                                            0
    
                                                                                          140
     IV.
        NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A.  INPUT
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                POINT SOURCE
                INDUSTRIAL (KG/YR)
                                                         POINT  SOURCE
                                                        SEPUC  TANKS  IKG/YR)
           NON-POINT  SOURCE
                  (KG/YR)
                                                                                                             TOTAL LOADING
                                                                                                                    (KG/rR)
    PHOSPHORUS
    B. OUTPUT
    PHOSPHORUS
    NITROGEN
    
    OUTLET (S)
    (KG/fR)
    260.
    lOfllO.
    
    PERCENT
    RETENTION
    12.
    LOSS
                                                                     eoeeaaoeao
                                                                                                8940.
                                                          LAKE  SURFACE  AREA  LOADING RATE
                                                                    (G/SQ  M/YR)
                                                                        0.40
                                                                       12.2
     V. NON-POINT-SOURCE  NUTRIENT  EXPORT
        STREAM NAME                MEAN FLOW
                                     (CMS)
        EAST  FORK  SEVIER RIVER        0.440
        BADGER CREEK                  0.007
        KING  CREEK                   0.005
    DRAINAGE AREA
    (SO KM)
    191.7
    14.0
    5.4
    MEAN TOTAL P
    (MG/L)
    0.023
    0.016
    0.014
    MEAN TOTAL N
    (MG/L)
    0.392
    0.566
    0.923
                                                                     TOTAL P EXPORT
                                                                     (KG/SO KM/YR)
                                                                           1.
                                                                          0.4
                                                                          0.9«
                                                                                                        TOTAL N EXPORT
                                                                                                        (KG/SO KM/YR)
                                                                                                              40.
                                                                                                              a.
                                                                                                              26.•
           ESTIMATED
    

    -------
    NAME       - UTAH LAKE
    COUNTY     - UTAH
    STORET NO. - 4934
               COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN UTAH
    
                       (HYPEREUTROPHIC)
    
               WORKING PAPER NO.  861, NTIS ACCESSION NO. P8-277 932/AB
    I. MORPHOMETRY
                     LAKE TYPE
                     NATURAL
                                  DRAINAGE AREA
                                      (SO KM)
                                    6876.40
                                SURFACE AREA
                                  (SO KM)
                                 396.60
                           MEAN DEPTH
                            (METERS)
                              2.1
     TOTAL INFLOW
        (CMS)
      17.180
     RETENTION TIME
         (YEARS)
           2.5
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
              166.               1118.
                             MEAN SECCHI DISC
                                  (METERS)
                                    0.2
                               MEDIAN
                            TOTAL PIMG/L)
                               0.132
           MEDIAN
        ORTHO P(MG/L)
           0.012
           MEDIAN
        INORG NIMG/D
           0.320
          MEDIAN
       TOTAL NCMG/L)
          1.160
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
               72.0                  6.7 -  13.8  ( 2)
                                        LIMITING NUTRIENT AT SAMPLING TIME
                                        ( 5/12/75) P AND N  ( 8/ 8/75) N
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/12/75
       GENERA
       CHROOMONAS
       CRYPTOMONAS
       SCHROEDERIA
       EUGLENA
       PTEROMONAS
       OTHER
    
       TOTAL
                                8/ 8/75
             COUNT   GENERA
              1618   ANARAENA
               917   MELOSIRA
               890   OSCILLATORIA
               405   CHROOMONAS
               216   CRYPTOMONAS
               998   OTHER
    
              5044   TOTAL
                                            9/19/75
                         COUNT   GENERA
                          9639   ANABAENA
                           455   OSCILLATORIA
                           342   CRYPTOMONAS
                           304   GLENODINIUM
                           152   SCENEDESMUS
                           151   OTHER
    
                         11043   TOTAL
                                                                               ( 9/19/75) P AND  N
                      COUNT
                       6854
                        219
                        165
                        137
                         82
                        275
    
                       7732
                                             GJ
                                             -vl
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
          125700.
          523420.
    
         OUTLET(S)
         (KG/YR)
        139995.
        817185.
    POINT SOURCE
    INDUSTRIAL (KG/YR)
          7645.
        460570.
                                                                   POINT SOURCE
                                                                  SEPTIC TANKS  (KG/YR)
                            eooooooooo
            NON-POINT SOURCE
                  (KG/YR)
                  68550.
                1333575.
                TOTAL LOADING
                      (KG/YR)
                     201895.
                    2317565.
     PERCENT     LAKE SURFACE AREA LOADING RATE
    RETENTION              (G/SO M/YR)
       31.                     0.51
       65.                      5.8
    V. NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        BENJAMIN SLOUGH              1.320
        UNNAMED CANAL El             0.132
        SPANISH FORK                 2.075
        DRY CREEK                    0.420
        HOBHLE CREEK                 0.617
        SPRING CREEK Kl              0.250
        MILL RACE CHEEK              1.240
        PHOVO RIVER                  5.296
        UNNAMED STREAM Nl            0.330
        UNNAMED STREAM PI            0.970
        AMERICAN FORK CREEK          0.038
        PLEASANT GROVE WST DITCH     0.750
        UNNAMED STREAM Yl            0.111
                            DRAINAGE AREA
                               (SO KM)
                                326.3
                                 12.4
                               1813.0
                                 9«.4
                                297.8
                                 24.1
                                 44.0
                               1787.1
                                  3.4
                                 24.6
                                163.2
                                 96.4
                                  3.6
                        MEAN TOTAL P
                           (MG/L)
                            0.339
                            0.191
                            0.171
                            0.745
                            0.054
                            1.607
                            1.354
                            0.053
                            1.727
                            0.064
                            0.024
                            0.329
                            0.113
    MEAN TOTAL N
       (MG/L)
        2.888
        2.218
        1.362
        5.690
        1.529
        6.125
        5.773
        0.936
        4.796
        1.467
        1.462
        3.362
        3.475
    TOTAL P EXPORT
    (KG/SO KM/YR)
         22.
         64.
          6.
         15. •
          4.
         38. •
        303.
          3.
        351.«
        143. «
         0.2
         23.
        110.
    TOTAL N EXPORT
    (KG/SQ KM/YR)
         297.
         745.
          49.
         350. «
         100.
         851. •
         779.
          74.
        7962.'
        3234.•
          11.
         540.
        3379.
    

    -------
        SPUING CHEEK 41              0.580          18.1            0.045            1.958            104.«            fall*
        UNNAMED STREAM 51            0.023           1.0            0.115            2.601             85.              ?„*
        UNNAMED STREAM hi            0.010           l.e            0.204            2.9bO             36.              b22.
        UNNAMED STREAM 71            I).210           1.0            0.031            2.329            205.             15*25.
        CURRENT CREEK rtl             O.?9h         999.7            0.088            1.514             0.8                1*.
    
    VI. MEAN NUTRIENT CONCENT*AT IONS IN UNGAGED STREAMS
        STREAM NAME               MEAN TOTAL H    MEAN TOTAL N
                                     (Mr,/L)          (MO/L)
        MILL RACE CREEK L
    -------
    NAME
    COUNTY
               - WILLARO RESERVOIR
               - BOX ELDER
    STORET NO. - 4925
    
    I. MORPHOMETRY
                                  COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN UTAH
    
                                          (EUTROPHIC)
    
                                  WORKING PAPER NO.  862, NTIS ACCESSION NO. PB-279 254/AB
                     LAKE TYPE
    
                     IMPOUNDMENT
                                  DRAINAGE AREA
                                      (SO KM)
                                      62.20
                                                   SURFACE AREA
                                                     (SQ KM)
                                                     40.47
              MEAN DEPTH
               (METERS)
                 5.9
     TOTAL INFLOW
        (CMS)
       2.570
     RETENTION TIME
         (YEARS)
           3.3
    II.  PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)    CONDUCT IV ITY(UMHOS)
              171.                989.
                                                MEAN SECCHI DISC
                                                     (METERS)
                                                        1.1
                  MEDIAN
               TOTAL P(MG/L)
                  0.044
           MEDIAN
        ORTHO P(MG/L)
           0.009
                                                                                                        MEDIAN
                                                                                                     INORG N(MG/L)
                                                                                                        0.060
                           MEDIAN
                        TOTAL NCMG/L)
                           0.620
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                7.6                *««««»««««
                                                           LIMITING  NUTRIENT  AT  SAMPLING  TIME
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/14/ 0
       GENERA
       ANKISTROOESMUS
       CRYPTOMONAS
       OTHER
    
       TOTAL
                                                   8/ 6/  0
                                COUNT   GENERA
                                 2412   MELOSIR4
                                   36   FRAGILARIA
                                        CRYPTOMONAS
                                        OOCYSTIS
                                        ANKISTRODESMUS
                                    0   OTHER
    
                                 2448   TOTAL
                                                            ( 5/14/75)  N
                                                                 COUNT
                                                                  2987
                                                                  1873
                                                                   253
                                                                   202
                                                                   202
                                                                    51
    
                                                                  5568
                                                                               (  8/  6/75)  N
                               9/23/ 0
                    GENERA
                    APHANIZOMENON
                    CRYPTOMONAS
                    OTHER
    
                    TOTAL
                                                                                                  (  9/23/75)  N
                      COUNT
                       1104
                         28
                          0
    
                       1132
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                                 110.
                               1485.
         PHOSPHORUS
         NITROGEN
        H. OUTPUT
                                            POINT SOURCE
                                            INDUSTRIAL  (KG/YR)
                                             oooooooooo
                                                                   POINT SOURCE
                                                                  SEPTIC TANKS  IKG/YRI
                                                                     ooooeooooo
                                   NON-POINT SOURCE
                                          (KG/YR)
                                          8250.
                                        210285.
                                TOTAL LOADING
                                       (KG/YH)
                                        8360.
                                     211770.
         PHOSPHORUS
         NITROGEN
                            OUTLET(S)
                            (KG/YR)
                             7380.
                            124710.
                                             PERCENT
                                            RETENTION
                                               12.
                                               41.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
                  0.21
                   5.2
    V. NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME
    
        WILLARD CANAL
        UNNAMED STREAM HI
        UNNAMED STREAM Cl
        UNNAMED STREAM D 1
        UNNAMED STREAM El
        UNNAMED STREAM Fl
        UNNAMED STREAM Gl
                                  MEAN FLOW
                                    (CMS)
                                     2.250
                                     0.184
                                     0.020
                                     0.011
                                     0.006
                                     0.042
                                     O.OS7
                                               DRAINAGE  AREA
                                                   (SO KM)
                                                     12.6
                                                     2.3
                                                     0.3
                                                     1.6
                                                     4.9
           MEAN TOTAL P
              (MG/L)
               0.101
               0.056
               0.047
               0.024
               0.020
               0.020
               0.050
    MEAN TOTAL N
       (MG/L)
        2.132
        1.294
        2.061
        1.786
        2.191
        2.881
        1.748
    TOTAL P EXPORT
    (KG/SO KM/YR)
    
         26.
         13.
         33.
          3.
          5.
     TOTAL N EXPORT
     (KG/SO KM/YR)
    *«««««*»«•
          S96.
          565.
         2067.
          259.
          779.
    

    -------
    NAME       - AMERICAN LAKE
    CUUNTY     - PIERCE
    STORET NO. - 5301
      COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN  WASHINGTON
    
              (MESOTROPHIC)
    
      WORKING PAPER NO.  86*, NTIS ACCESSION NO. PB-       /AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
      DRAINAGE APEA
         (SO KM)
          65.80
    SURFACE AREA
      (S(J KM)
       4.70
    MEAN DEPTH
     (METERS)
      15.*
    TOTAL INFLOW
       (CMS)
      0.160
    RETENTION TIME
        (YEARS)
         38.2
    II. PHYSICAL ANO CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)   CONDUCT I V ITY(UMHOS)
               41.                 69.
                    MFAN SECCHI DISC
                         (METERS)
                           4.0
                        MEDIAN
                     TOTAL P(MG/L)
                        0.027
                        MEDIAN
                     OUTHO  PIMG/L)
                        0.007
                           MEDIAN
                        INORG N(MG/L>
                           0.105
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MFAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY wT)
                4.8                  0.7 -   b.3  ( 2)
                               LIMITING NUTRIENT AT SAMPLING  TIME
    
                               ( 4/ 1/75) P        ( 7/17/75)  N
                        SUMMARY OF PHYTOPLANKTON DATA
                  4/ 1/75
       GENERA
       FRAGILAHIA
       CHROOMONAS
       MELOSIRA
       CHYPTOMONAS
       STEPHANODISCUS
       OTHER
    
       TOTAL
                                                   7/17/75
    COUNT   GENERA
      435   CYCLOTELLA
      373   CHROOMONAS
      373   MELOSIWA
      155   OOCYSTIS
       93   ANKISTRODESMI1S
      124   OTHFW
    
     1553   TOTAL
                                     10/29/75
                  COUNT   GENERA
                    529   APHANOCAPSA
                    511   FRAGILARIA
                     91   CHROOMONAS
                     73   ASTER10NELLA
                     55   CrtYPTOMONAS
                    220   OTHER
    
                    1479   TOTAL
                                                   (10/29/75) N
                                    COUNT
                                      555
                                      321
                                      263
                                      175
                                      117
                                      351
    
                                     1782
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
                           MEDIAN
                        TOTAL NIMG/L)
                           0.450
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                POINT SOURCE
                INDUSTRIAL  (K13/YR)
                             OUTLET(si
                             (KG/YR)
                    POINT "SOUHCE
                   SEPTIC TANKS  (KG/YR)
                             35.
                          1330.
                 PERCENT     LAKE SURFACE AREA LOADING  RATE
                RETENTION               (G/SO M/YR)
                 ««»«»                     0.10
                 o»a«o                      3.0
                          NON-POINT SOURCE
                                (KG/YR)
                                  445.
                                12835.
                                TOTAL LOADING
                                      (KG/YR)
                                        480.
                                      14165.
       NON-POINT-SOURCE NUTRIENT  EXPORT
        STREAM NAME                MEAN FLOW
                                     (CMS)
        MURRAY CREEK                  0.160
                   DRAINAGE AREA
                      -
    -------
    NAME       - BANKS LAKE
    COUNTY     - GRANT. DOUGLAS
    STORET NO. - 5302
      COMPENDIUM OF NATIONAL EUTROPhlCATION SURVEY LAKES IN WASHINGTON
    
              (MESOTROPHIC)
    
      WORKING PAPER NO.  865, NTIS ACCESSION NO. PB-       /AB
    I. MORPHOMETRY
                    •LAKE TYPE
    
                     IMPOUNDMENT
      DRAINAGE AREA
         (SO KM)
           SURFACE AREA
             
    -------
    NAME       - LAKE CHELAN
    COUNTY     - CHELftN
    STORET NO. - 5303
                                  COMPENDIUM OF NATIONAL FUTROPHICATION SURVEY LAKES  IN  WASHINGTON
                                          (OLIGOTROPHIC)
                                  WORKING PAPER NO.  866, NTIS ACCESSION NO. PB-       /AB
    I. MORPHOMETRY
                     LAKE  TYPE
    
                     NATURAL
                                  DRAINAGE AREA
                                     (SO KM)
                                    2393.00
                       SURFACE AREA
                         
         PHOSPHORUS
         NITROGFN
        B.  OUTPUT
                                       POINT SOURCE
                                      SEPTIC TANKS  (KG/YR)
                                               145.
                                             5390.
                                   NON-POINT SOURCE
                                          (KG/YR)
                                          34095.
                                        1320505.
                                        TOTAL LOADING
                                              (KG/YR)
                                              34695.
                                            1327255.
         PHOSPHORUS
         NITROGEN
                            OUTLET(S)
                            (KG/YR)
                            2422S.
                           30332U.
                 PERCENT
                RETENTION
                   30.
                   77.
    LAKE SURFACE AREA LOADING RATE
                    M/YR)
                  0.26
                   9.9
       NON-POINT-SOURCE  NUTRIENT  EXPORT
        STREAM NAME                MEAN  FLOW
                                     (CMS)
        STEHEKIN  RIVER               40.470
        RAILROAD  CREEK                5.780
                                               DRAINAGE AREA
                                                   (S(J KM)
                                                   891.0
                                                   172.0
                                    MEAN TOTAL
                                        (MG/L)
                                        0.014
                                        0.011
                           MEAN  TOTAL  N
                               (MG/L)
                               0.635
                               0.553
                            TOTAL P EXPORT
                            (KG/SO KM/YR)
                                 20.
                                 12.
                     TOTAL N EXPORT
                     (KG/SU KM/YR)
                          910.
                          506.
        MEAN NUTRIENT  CONCENTwATIONS  IN  UNGOGED  STREAMS
        STREAM NAME
    
        STINK CREFK
        POISON CREElv
        TWENTY FIVE MILE  CREEK
        GRAUF. CPEFK
        PRINCE CREFK
        MITCHELL
                                  MEAN TOTAL P
                                     (M(5/L)
                                     0.045
                                     o.n?o
                                     0.014
                                     n.o?o
                                     o.oil
                      MEAN TOTAL
                          (MG/L)
                          1.129
                         0. 130
    
                         0.720
    

    -------
    NAME       - DIAMOND LAKE
    COUNTY     - PEND OREILLE
    STORE! NO. - 5304
                              COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN WASHINGTON
                                      (EUTHOPHIC)
                              WORKING PAPER NO.  867. NTIS ACCESSION NO. PB-       /AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
                              DRAINAGE AREA
                                 (SO KM)
               SURFACE AREA
                 (SO KM)
                  3.07
    MEAN DEPTH    TOTAL INFLOW
     (METERS)        (CMS)
       8.1     ««»«•«««««
    RETENTION TIME
        (YEARS)
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
               38.                 53.
                                            MEAN SECCHI DISC
                                                 (METERS)
                                                   5.0
                                   MEDIAN
                                TOTAL P(MG/L)
                                   0.014
                        MEDIAN
                     ORTHO P(MG/L)
                        0.010
          MEDIAN
       INORG N(MG/L)
          0.060
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
                (UG/L)              (MG/L—DRY WT)
                14.5                      0.4
                                                       LIMITING NUTRIENT AT SAMPLING TIME
                        SUMMARY OF PHYTOPLANKTON DATA
                  6/ 4/75
                                                   7/23/75
       GENERA
       DINOBRYON
       CYCLOTELLA
       OOCYSTIS
       CHROOMONAS
       CRYPTOMONAS
       OTHER
    
       TOTAL
                            COUNT
                              306
                              167
                               56
                               56
                               28
                               83
    
                              696
    GENERA
    PHORMIDIUM
    GLOEOCAPSA
    ANABAENA
    EUNOTIA
    COSMARIUM
    OTHER
    
    TOTAL
    /75) N
    ( 7/23/75)
    N
    9/16/75
    COUNT
    969
    588
    554
    554
    242
    2147
    GENERA
    CHROOCOCCUS
    
    CYCLOTELLA
    EUNOTIA
    NAVICULA
    OTHER
    
    
    
    
    
    
    
                                                                  5054
                                                                          TOTAL
                                                                                              ( 9/16/75)  P
                                   COUNT
                                     366
    
                                     284
                                     244
                                     244
                                    2440
    
                                    3578
    IV.
    NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                   POINT SOUHCE         POINT SOURCE
                   MUNICIPAL (KG/YR)    INDUSTRIAL (KG/YR)
       MEDIAN
    TOTAL N(MG/L)
       0.530
                                                                                                                 (10/24/75)  P
    PHOSPHORUS
    B. OUTPUT
    
    NITROGEN
    ooooeoooao
    OUTLET (S)
    (KG/YR)
    
    
    
    PERCENT
    RETENTION
    *
    
                                                                   POINT SOURCE
                                                                  SEPTIC TANKS  (KG/YR)
                                                                    oooooooooo
                                                                    oooooooooe
                                                    NON-POINT SOURCE
                                                          (KG/YR)
                                             TOTAL LOADING
                                                    (KG/YR)
                                               ««•«•**•*•
                                               •«*••*••••
                                                         LAKE SURFACE  AREA LOADING RATE
                                                                    (G/SQ M/YR)
                                                                 oooooooooo
                                                                 OOOOOOOOOO
    VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
        STREAM NAME               MEAN TOTAL P    MEAN TOTAL N
                                      (MG/L)           (MG/L)
        MOON CREEK  (OUTLET)           0.030            0.855
    

    -------
    NAME       - GREEN LAKE
    COUNTY     - KING
    STORET NO. - 5305
                              COMPENDIUM OF NATIONAL EUTROPHICATION  SURVEY LAKES IN WASHINGTON
    
                                       (EUTROPHIC)
    
                              WORKING  PAPER NO.  86H, NTIb  ACCESSION NO.  PB-       /AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
                              DRAINAGE  AREA
                                  (SO KM)
           SURFACE AREA
             (SO  KM)
                                                                 MEAN DEPTH
                                                                  (METERS)
                                                                    3.8
    TOTAL INFLOW
       (CMS)
    RETENTION TIME
        (YEARS)
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)   CONDUCT I V ITY(UMHOS)
               22.                 33.
                                            MFAN SECCHI  DISC
                                                 (METERS)
                                                   2.?
                               MEDIAN
                            TOTAL P(MG/L)
                               0.027
                                                                                     MEDIAN
                                                                                  ORTHO P(MG/L)
                                                                                     0.009
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY  CONTROL  YIELD
               (UG/L)              (MG/L—DRY  WT)
                3.0                  0.8  -   2.9  (  2)
                                                        LIMITING  NUTRIENT AT SAMPLING TIME
                                                            (  4/ 1/75)  N
                                                                               ( 7/18/75) N
                           MEDIAN
                        INORG N(MG/L)
                           0.050
                                                                                               (10/29/75)  P
                           MEDIAN
                        TOTAL N(MG/L)
                           0.360
                        SUMMARY OF PHYTOPLANKTON  DATA
               4/ 1/75
    GENERA                   COUNT
    ASTERIONELLA              3960
    APHAMZOMENOiM             2487
    FRAGILARIA                1301
    FLAGELLATES                287
    CENTRIC DIATOM              57
    OTHER                      I«i2
                                                    7/18/75
                                         GENFRA
                                         ANACYSTIS(MICROCYSTIS)
                                         OSCILLATORIA
                                         CYCLOTELLA
                                         CHROOMONAS
                                         CLOSTERIUM
                                                                                10/29/75
                                                              COUNT    GENERA
                                                                341    ASTERIONELLA
                                                                341    CHRYSOPHYTAN CELLS
                                                                189    ANABAENA
                                                                114    FRAGILARIA
                                                                 38    APHANI20MENON
                                                                 37    OTHER
                                                           COUNT
                                                             676
                                                             204
                                                             157
                                                             157
                                                              94
                                                             158
       TOTAL
                                  H2H4
                                         TOTAL
    IV.
    NUTRIENT LOADING CHAPACTEM 1ST ICS(LAKt)
    A. INPUT
         PHOSPHORUS
         NITROGFN
        H. OUTPUT
         PHOSPHORUS
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                            OUTLET (S)
                             (KG/r-R)
                                         POINT SOURCE
                                         INDUSTRIAL  (KG/YR)
     PERCENT
    •
    -------
    NAME       - KEECHELUS LAKE
    COUNTY     - KITTITAS
    STORET NO. - 5306
          COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN WASHINGTON
    
                  (OLIGOTROPHIC)
    
          WORKING PAPER NO.  869, NTIS ACCESSION NO. PB-       /AB
       MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
          DRAINAGE AREA
             (SO KM)
             141.70
           SURFACE AREA
             (SO KM)
             10.36
              MEAN DEPTH
               (METERS)
                18.7
    TOTAL INFLOW
       (CMS)
     10.ZOO
    RETENTION TIME
        (DAYS)
        220.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IVITY(UMHOS)
               15.                 24.
                        MFAN SECCHI DISC
                             (METERS)
                               5.6
                               MEDIAN
                            TOTAL P(MG/L)
                               0.007
                                  MEDIAN
                               ORTHO PIMG/L)
                                  0.002
                          MEDIAN
                       INORG N(HG/L)
                          0.040
                          MEDIAN
                       TOTAL NCMG/L)
                          0.220
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                1.4                  0.2 -   0.3  ( 3)
                                   LIMITING NUTRIENT AT SAMPLING TIME
    
                                   ( 7/21/75) P AND N  ( 9/12/75) P
                        SUMMARY OF PHYTOPLANKTON DATA
       GENERA
       CYCLOTELLA
       CHROOMONAS
       MELOSIRA
       CRYPTOMONAS
       OTHER
    
       TOTAL
                  7/21/75
                           9/12/75
        COUNT   GENERA
          466   CHLOROPHYTAN CELLS
           fi9   OINOBRYON
           89   MELOSIRA
           22   CRYPTOMONAS
            0   OTHER
    
          666   TOTAL
                                                                                    10/28/75
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
    OUTLET(S)
    (KG/YR)
     1685.
    40835.
                    POINT SOURCE
                    INDUSTRIAL (KG/YR)
                     oooeooeeoo
                         COUNT   GENERA
                           195   CHROOMONAS
                           195   DINOBRYON
                           130
                            22
                             0   OTHER
    
                           542   TOTAL
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
                            0000000000
                                                                                                  (10/28/75)  P
                                             COUNT
                                                24
                                                24
                                                                                                      48
                                                                                                                                          •in
     PERCENT
    RETENTION
       63.
       57.
                                   NON-POINT SOURCE
                                         (KG/YR)
                                          4525.
                                         95980.
                               TOTAL LOADING
                                      (KG/YR)
                                      4525.
                                     95980.
    LAKE SURFACE AREA LOADING RATE
              (G/SO M/YR)
                  0.44
                   9.3
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        MEADOW CREEK                  1.470
        GOLD CREEK                    2.610
                       DRAINAGE AREA
                          (SO KM)
                            20.4
                            36.3
                        MEAN TOTAL P    MEAN TOTAL N    TOTAL P EXPORT    TOTAL  N  EXPORT
                           (M&/L)          (MG/L)       (KG/SO KM/YR)     (KG/SO KM/YR)
                            0.008           0.159            38.              404.
                            0.007           0.196            28.              835.
    VI. MEAN NUTRIENT CONCENTRATIONS  IN UNG4GED STREAMS
        STREAM NAME               MEAN TOTAL P    MEAN TOTAL  N
                                      (MG/L)           (MG/L)
        ROARING CREEK                 0.007            0.248
        COLD CREKK                    0.007            0.265
    

    -------
    NAME       - MAYFIELO  LAKF
    COUNTY     - LEWIS
    STORET NO. - 5307
                             COMPENDIUM  OF NATIONAL FUTROPH1CAT ION SURVEY  LAKtS IN WASHINGTON
    
                                      ("ESOTROPHIO
    
                             WORKING  PAPER NO.   87U, NTIS ACCESSION NO.  PB-        /AB
    I. MORPHOMETWY
                     LAKt  TYPE
    
                     IMPOUNDMENT
             MEDIAN
        ALKALINITY (M.3/L)
               24.
    Hi. HIOLOGICAL  CHARACTERISTICS 
        MEAN CHLOROPHYLL  4     ALGAL ASSAY CONTROL YIELD
                (UG/L)              (MG/L—D»Y WT)
                 4.2                  0.1-   0.2(2)
    DRAINAGE AREA SURFACE AKEA
    (SO KM) 
    -------
    NAME       - MEDICAL LAKE
    COUNTY     - SPOKANE
    STORET NO. - 5308
    
    I. MORPHOMETRY
      COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN WASHINGTON
    
              (HYPEREUTROPHIC)
    
      WORKING PAPER NO.  871, NTIS ACCESSION NO. PB-       /AB
    
    II.
    LAKE TYPE DRAINAGE AREA
    (SO KM)
    PHYSICAL AND CHEMICAL CHARACTERISTICS
    MEDIAN MEDIAN
    ALKALINITY(MG/L) CONDUCT IV IT Y (UMHOS)
    1380. 1479.
    SURFACE AREA
    (SO KM)
    0.64
    MEAN SECCHI DISC
    (METERS)
    2.5
    MEAN DEPTH TOTAL INFLOW RETENTION TIME
    (METERS) (CMS) (YEARS)
    MEDIAN MEDIAN MEDIAN
    TOTAL PIMG/L) ORTHO P(MG/L) INORG N(MG/L)
    0.275 0.166 0.235
    
    MEDIAN
    TOTAL NCMG/L)
    2.900
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
               (U6/L)              (MG/L—DRY WT)
               16.4                  9.0 -  30.5  (  3)
                               LIMITING NUTRIENT AT SAMPLING TIME
                               ( 6/ 3/75) N
                        SUMMARY OF PHYTOPLANKTON DATA
                  6/ 3/75
       GENERA
       CHROOMONAS
       SCHROEDERIA
       PHORMIOIUM
       CRYPTOMONAS
    
       OTHER
    
       TOTAL
                       7/23/75
    COUNT   GENERA
      769   NITZSCHIA
      678   ANACYSTIS(MICROCYSTIS)
      271   CRYPTOMONAS
      226   CHROOMONAS
            APHANOCAPSA
        0   OTHER
    
     1944   TOTAL
                         COUNT
                          2267
                           599
                           385
                           342
                           257
                           384
    
                          4234
                                                   ( 7/23/75) N
               9/11/75
    GENERA
    ANACYSTIS(MICROCYSTIS)
    PHORMIDIUM
    FRAGILARIA
    CRYPTOMONAS
    PENNATE DIATOMS
    OTHER
    
    TOTAL
                                                                      ( 9/11/75) N
                                                                                         (10/34/75)  N
    COUNT
     1560
     1147
      551
      229
      229
      277
    
     3993
              10/24/75
    GENERA                    COUNT
    FRAGILARIA                 2032
    ANABAENA                    290
    ANACYSTIS(MICROCYSTIS)      145
    IV.
        NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGFN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                POINT SOURCE
                INDUSTRIAL (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS  (KG/YR)
                   NON-POINT SOURCE
                         (KG/YR)
    OTHER
    
    TOTAL
              TOTAL LOADING
                    (KG/YR)
                                  0
    
                               2467
                            OUTLET(S)
                            (KG/YR)
     PERCENT
    RETENTION
     aoooo
                             LAKE SURFACE AREA LOADING RATE
                                       (G/SO M/YR)
                                                                  0000000000
                                           »«*« LAKE SAMPLING  ONLY  ««««
    

    -------
    NAME       - HOSFS LAKE
    COUNTY     - GRANT
    STORET NO. - 5309
    
    I. MORPHOMETRY
               COMPENDIUM OF NATIONAL EUTROPHICA1IUN SURVEY  LAKES  IN WASHINGTON
    
                       (FUTROPHIC)
    
               WORKING PAPER NO.  Bid, NTIS ACCESSION NO. P8-        /AB
    
    II.
    LAKE TYPE DRAINAGE AREA
    (SO KM)
    IMPOUNDMENT 7990.10
    PHYSICAL AND CHEMICAL CHARACTERISTICS
    MEDIAN MEDIAN
    ALKALINITY (MG/L) CONDUCTIVITY (UMHOS)
    183. 377.
    SURFACE AREA
    (S(J KM)
    27. 5*
    MEAN SECCHl DISC
    (METERS)
    0.9
    MEAN DEPTH TOTAL INFLOW RETENTION TIME
    (METERS) (CMS) (DAYS)
    5.9 4.560 389.0
    MEDIAN MEDIAN MEDIAN
    TOTAL PIMG/L) ORTHO PfMG/L) INORG NIMG/L)
    0.115 0.038 0.150
    
    MEDIAN
    TOTAL N(MG/L)
    1.040
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A     ALGAL  ASSAY  CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                39.1                  7.7  -   14.8  (  4)
                                        LIMITING NUTRIENT  AT  SAMPLING TIME
    
                                        ( 4/ 2/75) P  AND N (  7/21/75) N
                        SUMMARY  OF  PHYTOPLANKTON  DATA
                  4/ 2/7b
       GENERA
       STEPHANODISCUS
       SCENEDESMUS
       CRYPTOMONAS
       CHROOMONAS
       MELOSIRA
       OTHER
    
       TOTAL
                                7/21/75
             COUNT   GENFRA
             37485   APH4NIZOMFNON
               813   OOCYSTIS
               642   SCENEDESMUS
               4?8   MELOSIRA
               342   CHROOMONAS
              1241   OTHFR
    
             40951   TOTAL
                                             9/10/75
                         COUNT   GENERA
                          5406   APHANIZOMENON
                          2806   OOCYSTIS
                          1471   CRYPTOMONAS
                           753   MELOSIRA
                           479   OSCILLATOWIA
                          1472   OTHER
    
                         12387   TOTAL
                                                          (  9/10/75) N
                                              COUNT
                                               7171
                                                850
                                                702
                                                481
                                                444
                                                923
    
                                              10571
    IV. NUTRIENT LOADING  CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGFN
    POINT SOURCE
    MUNICIPAL  (KG/YR)
            9^05.
           21210.
    
         OUTLET(S)
         (KG/YR)
         17230.
        206055.
                                             POINT  SOURCE
                                             INDUSTRIAL (KG/YRI
     PERCENT
    RETENTION
       45.
       42.
                           POINT SOURCE
                          SEPTIC TANKS  (KG/YR)
                                   20.
                                   780.
                                    NON-POINT SOURCE
                                          (KG/YR)
                                          21220.
                                         335925.
    TOTAL LOADING
          (KG/YR)
                                                                           357915.
    LAKE SURFACE AREA LOADING  RATE
              (G/SO M/YR)
                  1.13
                  13.0
       NON-POINT-SOURCE  NUTRIENT  EXPORT
        STREAM NAME                MFAN FLOW
                                     (CMS)
        CRAH CRFF.K                    2.010
        ROCKY COULEE  WASTEwAY    »«»«aooi>
        HOCKY FORO CREEK              2.SSO
    DRAINAGE AnEA
    (SO KM)
    5770.5
    764.0
    1217.3
    MEAN TOTAL P
    (MG/L)
    0.099
    0.122
    0.139
    MEAixl TOTAL N
    (MG/L)
    1.734
    1.904
    1.752
                                                                               TOTAL  P  EXPORT
                                                                               (KG/SQ KM/YH)
                                                                                    0.8
                                                                                     5.
                                                                                     9.
                                                                           TOTAL N EXPORT
                                                                           (KG/Sd KM/Y«)
                                                                                 16.
                                                                                 79.
                                                                                112.
    

    -------
    NAME       - OZETTE LAKE
    COUNTY     - CLALLAM
    STORET NO. - 5310
      COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES IN WASHINGTON
    
              (OLIGO-MESOTROPHIC)
    
      WORKING PAPER NO.  873, NTIS ACCESSION NO. PB-       /AB
    I. MORPHOMETRY
                     LAKE TYPE
                     NATURAL
                                  DRAINAGE  AREA
                                      (SO KM)
                       SURFACE AREA
                         (SO KM)
                         29.5*
                     MEAN DEPTH
                      (METERS)
                       39.6
            TOTAL INFLOW
               (CMS)
                                                         RETENTION  TIME
                                                              (YEARS)
                                                            00*000
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITYIMG/L)   CONDUCT IV ITY(UMHOS)
               10.                 29.
                    MEAN SECCHI DISC
                         (METERS)
                           2.5
                         MEDIAN
                      TOTAL P(MG/L)
                         0.010
                  MEDIAN
               ORTHO PIMG/L)
                  0.009
                                                               MEDIAN
                                                             INORG NIMG/L)
                                                               0.110
       MEDIAN
    TOTAL N(MG/L)
       0.290
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                1.2      .                0.1
                               LIMITING NUTRIENT AT SAMPLING TIME
                  3/31/75
                        SUMMARY OF PHYTOPLANKTON DATA
       GENERA
       CHROOMONAS
       CYCLOTELLA
       MELOSIRA
       CRYPTOMONAS
    
       OTHER
    
       TOTAL
                       7/18/75
    COUNT   GENERA
      120   MELOSIRA
       60   FLAGELLATES
       60   PENNATE DIATOMS
       30   CRYPTOMONAS
            ANKISTRODESMUS
        0   OTHER
    
      270   TOTAL
                                                            (  3/31/75)  N
                   COUNT
                     719
                     332
                     166
                     111
                     111
                     165
    
                    1604
                                                   ( 7/18/75) N
              10/29/75
    GENERA
    STEPHANODISCUS
    CHROOMONAS
    SYNEDHA
    CLOSTERIUM
    OSCILLATORIA
    OTHER
    
    TOTAL
                                                                      (10/29/75)  P
                                                          COUNT
                                                             66
                                                             66
                                                             22
                                                             22
                                                             22
                                                             24
    
                                                            222
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                            OUTLET(S)
                            (KG/YR)
    POINT SOURCE
    INDUSTRIAL
     oooooooooo
     oooooooooo
    
     PERCENT
    RETENTION
     00000
     ooooo
                                       POINT SOURCE
                                      SEPTIC TANKS  (KG/YR)
                                          NON-POINT SOURCE
                                                (KG/YR)
                                            oooooooooo
                                       TOTAL LOADING
                                             
    -------
    NAME       - SAMMAMISH  LAKE
    COUNTY     - KING
    STORET NO. - 5311
           COMPENDIUM OF NATIONAL EUTROPHICATION  SURVEY LAKES IN WASHINGTON
    
                   (MESO-EUTROPrilC)
    
           WORKING PAPER NO.  874. NTIS ACCESSION NO.  f>ti-       /AB
    I. MORPHOMETRY
                     LAKE  TYPE
    
                     NATURAL
             MEDIAN
        ALKALINITYIMG/L)
                39.
    III. BIOLOGICAL  CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL  A     ALGAL ASSAY CONTROL YIELD
                (U6/L)              (MG/L—DRY WT)
                 7.3                  0.5 -   1.6  ( 2)
    DRAINAGE AREA SURFACE AREA
    (SO KM) (SO KM)
    253.00 19.82
    !ACTER1ST1CS
    DIAN MFAN SECCHI DISC
    IVITY(UMHOS) (METERS)
    rfl. 3.2
    MEAN DEPTH TOTAL INFLOW RETENTION TIME
    (METERS) (CMS) (YEARS)
    17.7 6.410 l.b
    MEDIAN
    TOTAL P(MG/L>
    0.015
    MEDIAN
    ORTHO P(MG/L>
    0.006
    MEDIAN
    INORG N(MG/L)
    0.210
    MEDIAN
    TOTAL NIMG/L)
    0.540
                                    LIMITING NUTRIENT AT SAMPLING TIME
    
                                     ( 3/31/75)  P        ( 7/17/75) P
                             (10/28/75)  P
                         SUMMARY OF PHYTOPLANKI ON T>ATA
                   3/31/75
       GENERA
       MELOSIRA
       FRAGILARIA
       STEPHANODISCUS
       ASTERIONELLA
       SYNEOHA
       OTHER
    
       TOTAL
                            7/17/75
         COUNT   GENERA                    COUNT
          5024   APHANOCAPSA                1081
          1136   APHANOTHECE                 765
           723   CHROOMONAS                   90
           551   BOTWYOCOCCUS                 45
           344   CHLOROPnYTAN COLONIES        45
           344   OTHFR                       135
    
          8122   TOT&L                      2161
               10/28/75
    GENERA
    APHANOCAPSA
    FRAGILARIA
    CHROOMONAS
    CRYPTOMONAS
    APHANIZOMENON
    OTHER
    
    TOTAL
    COUNT
      683
      683
      528
      186
       31
       63
    
     2174
    IV. NUTRIENT  LOADING CHARACTERISTICS(LAKE)
         A.  INPUT
         PHOSPHORUS
         NITROGEN
        H. OUTPUT
         PHOSPHORUS
         NITROGEN
                        POINT SOURCE
                        MUNICIPAL (KG/YP)
     OUTLETis>
     (KG/fR)
      4450.
    12927S.
       NON-POINT-SOURCE NUTRIENT EXHORT
         STREAM  NAME                MEAN FLO*
                                     (CMS)
         ISSAOUAH  CREEK               4. 1*0
         TI8HETTS  CREEK               0.2SO
    VI.  MFAN  NUTRIENT CONCENTRATIONS IN UNGAGEU STREAMS
         STREAM  NAME                MEAN TOTAL P    MFAN  TOTAL  N
                                      (MG/L)           (Mb/L)
         UNNAMED CREEK rt 1              0.025            l.t>86
         UNNAMED CANOL Cl              O.Ohb            0.735
    POINT SOURCE
    INDUSTRIAL 
    '
    PERCENT LAKE
    RETENTION
    27.
    *.2.
    DRAINAGE AREA
    (SO KM)
    141.7
    13. U
    POINT SOURCE NON-POINT SOURCE TOTAL
    SEPTIC TANKS (KG/YR) (KG/YR)
    110. 6020.
    4165. 336010.
    SURFACE AREA LOADING RATE
    (G/SO M/YR)
    0.31
    17.2
    MEA'M TOTAL P
    (MG/L)
    0.036
    0.023
    MEAN TOTAL
    (MG/L)
    1.309
    1.907
    N TOTAL P EXPORT
    (KG/SO KM/YR)
    33.
    11.
    LOADING
    (KG/YR)
    6130.
    340175.
    TOTAL N EXPORT
    (KG/SO KM/YH)
    1259.
    1441.
    

    -------
    NAME       - LAKE WHATCOM
    COUNTY     - WHATCOM
    STORET NO. - S312
          COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN WASHINGTON
    
                  (MESOTROPHIC)
    
          WORKING PAPER NO.  875, NTIS ACCESSION NO. PB-       /AB
    I. MOHPHOMETRY
                     LAKE TYPE
    
                     NATURAL
          DRAINAGE AREA
             (SO KM)
             145.30
           SURFACE AREA
             (SO KM)
             20.35
              MEAN DEPTH
               (METERS)
                 1.8
    TOTAL INFLOW
       (CMS)
      4.770
    RETENTION TIME
        (DAYS)
         95.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
               17.                 39.
                        MEAN SECCHI DISC
                             (METERS)
                               5.4
                               MEDIAN
                            TOTAL P(MG/L)
                               0.009
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.009
                          MEDIAN
                       INORG N(MG/L)
                          0.320
                          MEDIAN
                       TOTAL N(MG/L>
                          0.510
    III. BIOLOGICAL CHARACTERISTICS  (LAKE!
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                3.4                  0.3 -   0.4  ( 2)
                                   LIMITING NUTRIENT AT SAMPLING TIME
    
                                   ( 3/31/751 P        ( 7/18/75) P
                        SUMMARY OF PHYTOPLANKTON DATA
                  3/31/75
       GENERA
       MELOSIRA
       ASTERIONELLA
       CHROOMONAS
       STEPHANODISCUS
       TABELLAHIA
       OTHER
    
       TOTAL
                                                   7/18/75
    COUNT
    735
    331
    257
    184
    110
    0
    GENERA
    TA8ELLARIA
    SYNEDRA
    CYCLOTELLA
    MALLOMONAS
    
    OTHER
         1617
                                        TOTAL
                                                           10/29/75
                                         COUNT   GENERA
                                           733   ASTERIONELLA
                                           193   FRAGILAR1A
                                            38   SPONDYLOSIUM
                                            38   CHROOMONAS
                                                 APHANOCAPSA
                                             0   OTHER
    
                                          1002   TOTAL
                                                          (10/29/75) P
                                                          COUNT
                                                             184
                                                             184
                                                             184
                                                             147
                                                             73
                                                             109
    
                                                             881
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                    POINT SOURCE
                    INDUSTRIAL (KG/YR)
    OUTLET(S)
    (KG/YR)
     1480.
    89620.
     PERCENT
    RETENTION
       43.
       46.
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
                                   75.
                                 2785.
                                   NON-POINT SOURCE
                                          (KG/YR)
                                          2515.
                                        164600.
                               TOTAL LOADING
                                     (KG/YR)
                                      2590.
                                    167385.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
                  0.13
                   8.3
    V. NON-HOINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        ULSEN CRFFK                  0.300
        8EAVER CREEK                 0.580
                       DRAINAGE AREA
                          (SQ KM)
                             9.8
                            20.0
                        MEAN TOTAL
                           (MG/L)
                            0.019
                            0.022
                           MEAN TOTAL
                              (MG/L)
                               0.787
                               0.838
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                        17.
                        18.
                    TOTAL N EXPORT
                    (KG/SQ KM/YR)
                        1112.
                        1270.
    

    -------
    NAME       - LOWER liRANITE RtSFRvOIR
    COUNTY     - GAWFIELIJ. WHITMAN
    STOHET NO. - 5313             WORKING  PaPER  NO.
    COMPENDIUM OF NATIONAL EUTROPHICATION  SURVEY  LAKES IN WASHINGTON
    
            (FUTROPHIO
    
                       876. NTIS  ACCESSION NO.  Pfl-       /AB
    I. MORPHOMETRY
                     LAKE  TYPE
                     IMPOUNDMENT
    DRAINAGE AREA
       (SO KM)
    SURFACE AREA
      (SCI KM)
      36.42
    MEAN DEPTH    TOTAL  INFLOW
     (METEHS)         (CMS)
    RETENTION TIME
        (YEARS)
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN              MEDIAN
        ALKALINITY(MGXL)   CONDUCTIVITY(UMHOS)
               59.                 140.
                  MEAN SECCHI DISC
                       (METERS)
                          1.6
    13.7 «»««•
    MEDIAN
    TOTAL P(MG/L>
    O.U33
    MEDIAN
    OKTHO P(MG/L)
    0.022
    ««»«««
    MEDIAN
    INORG N(MG/L)
    0.150
    MEDIAN
    TOTAL NIMG/L)
    0.330
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL  A     ALGAL  ASSAY  CONTROL  YIELD
                (UG/L)              (MG/L—DRY *T>
                4.9                  1.1  -    3.9 (  4)
                             LIMITING  NUTRIENT  AT SAMPLING TIME
    
                              (  7/23/7S)  N        ( 9/12/7S) N
                         SUMMARY  OF  PHYTOPLANKION DATA
                  7/23/7b
       GENEHA                    COUNT    GENFRA
       SKELETONEMA                 6JO    MELOSIRA
       CENTRIC DIATOM              S40    CHROOMONAS
       FRAGILARIA                  210    SKELETONEMA
       CHROOMONAS                   60    CYCLOTELLA
       NITZSCHIA                    60    NITZSCHIA
       OTHER                       150    OTHER
    
       TOFAL                      1650    TOTAL
                                                    9/12/75
    IV. NUTRIENT LOADING  CHARACTERISTICS(LAKE>
        A.  INPUT
                        POINT  SOURCF.
                        MUNICIPAL  (KG/YR)
              POINT SOURCE
              INDUSTRIAL  (KG/YR)
                                    COUNT
                                      610
                                      778
                                      195
                                      162
                                      130
                                      812
    
                                     2887
                    POINT  SOURCE
                   SEPTIC  TANKS  
                                                                                           cn
                                                                                           re
                          NON-POINT SOURCE
                                (KG/YR)
    PHOSPHORUS
    8. OUTPUT
    Ml TRIlftPN
    
    OUTLET (S)
    (KG/YR)
    
    
    PERCENT
    RETENTION
    eeooe
                TOTAL LOADING
                      (KG/YR)
                  »«««««««««
                  «»«»•»*»»<
                                                          LA^E SURFACE AREA LOADING  RATE
                                                                    (G/Sd M/YR)
                                                 LAKE SAMPLING ONLY «««
    

    -------
    NAME       - BIG SANDY RESERVOIR
    COUNTY     - SUBLETTE. SWEETWATER
    STORET NO. - 5601             WORKING PAPER NO.
                              COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES  IN WYOMING
    
                                      (EUTRQPHIC)
    
                                                 881, NTIS ACCESSION NO. PB-276 825/AB
    I. MORPMOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
                              DRAINAGE AREA
                                 (SO KM)
                                1139.60
           SURFACE AREA
             (SO KM)
              8.34
              MEAN DEPTH
               (METERS)
                 5.8
    TOTAL INFLOW
       (CMS)
      2.462
    RETENTION TIME
        (DAYS)
        273.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
               41.                 98.
                                            MEAN SECCHI DISC
                                                 (METERS)
                                                   0.3
                               MEDIAN
                            TOTAL P(MG/L)
                               0.087
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.020
                          MEDIAN
                       INORG NIMG/L)
                          0.060
                          MEDIAN
                       TOTAL N(MG/L)
                          0.430
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY WT)
                4.4                •»««»«««»o
                                                       LIMITING NUTRIENT AT SAMPLING TIME
                                                            (  5/19/75)  N
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/19/75
       GENERA
       CENTRIC DIATOM
       CHROOMONAS
       CRYPTOMONAS
       SURIRELLA
       NITZSCHIA
       OTHER
    
       TOTAL
                                               9/ 2/75
                            COUNT   GENERA
                              568   APHANIZOMENON
                              512   CHROOMONAS
                               57   CRYPTOMONAS
                               28   SCHROEDERIA
                               28
                                0   OTHER
    
                             1193   TOTAL
                         COUNT
                           577
                           241
                           120
                            48
    
                             0
    
                           986
                                                                           (  9/ 2/75) N
                              10/16/75
                    GENERA
                    CHHOOMONAS
                    CRYPTOMONAS
                    SCHROEDERIA
                    OTHER
    
                    TOTAL
                                                                                              (10/16/75)  N
                     COUNT
                      1050
                       131
                        98
                         0
    
                      1279
    IV.
    NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
         PHOSPHORUS
         NITROGEN
        A. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                                        POINT SOURCE
                                        INDUSTRIAL  (KG/YR)
                        OUTLET(S)
                        (KG/YR)
                         848S.
                        9950b.
     PERCENT
    RETENTION
       15.
       26.
                           POINT SOURCE
                          SEPTIC TANKS  (KG/YR)
    
                            000000aooo
                                   NON-POINT SOURCE
                                         (KG/YR)
                                          9980.
                                        133855.
                               TOTAL LOADING
                                     (KG/YR)
                                      9980.
                                    133855.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
                  1.20
                  16.0
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        HIG SANDY RIVER              2.450
                                           DRAINAGE AREA
                                               (SO KM)
                                               834.0
                        MEAN TOTAL P
                           (MG/L)
                            0.114
                           MEAN TOTAL N
                              (MG/L)
                               1.131
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                         9.
                    TOTAL N EXPORT
                    (KG/SO KM/YR)
                         110.
    

    -------
    NAMF.       - BOULDER
    COUNTY     - SUhfLETTE
    STORET NO. - 5602
           COMPENDIUM OF  NATIONAL KUTROPHICAT ION SURVEY  LAKES  IN WYOMING
    
                   (OLIliOTROPHIC)
    
           WORKING P-SPtR  NO.   882. NTIS ACCESSION NO. PB-277  049/AB
    I. MORPhOMETRY
                     LAKE TYPE
    
                     NATURAL
           DRAINAGE AREA
              (SO KM)
              336.70
           SURFACE AREA
             (SU KM)
              7.03
    MEAN DEPTH
     (METERS)
    TOTAL INFLOW
       (CMS)
      5.724
    RETENTION TIME
        (DAYS)
        181.0
    II. PHYSICAL ANO CHEMICAL CHARACTERISTICS
             MEDIAN              MEDIAN
        ALKALINITY(MG/L)   CONDUCTIVITY(OMHOS)
               16.                   3.
                         MEAN SECCHI DISC
                              (METERS)
                                3.5
                               MEDIAN
                            TOTAL PIMG/L)
                               0.008
                         MEDIAN
                      ORTriO  PIMG/L)
                         0.002
                           MEDIAN
                        INORG N(MG/L)
                           0.040
                           MEDIAN
                        TOTAL N1MG/L)
                           0.235
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A     ALGAL  ASSAY  CONTROL YIELD
                (UG/L)              (MG/L—DRY WT)
                                    LIMITING NUTRIENT  AT  SAMPLING TIME
    
                                    (  8/28/75) N        (10/17/75) P
                        SUMMARY  OF  PHYTOPLANKTON  DATA
                  8/28/75
       GENERA
       CHLAMYDOMONAb
       CHROOMONAS
       CRYPTOMONAS
       SPHAEROCYSTIS
    
       OTHER
    
       TOTAL
                           10/17/75
         COUNT   GENERA
          380ft   SPHAEROCYSTIS
           327   APHANOTHECE
            59   ELAKATOTHRIX
            30   CRYPTOMONAS
                 CHROOMONAS
             0   OTHER
    
          4222   TOTAL
    IV. NUTRIENT LOADING  CHARACTER 1STICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT  SOURCE
                       MUNICIPAL  (KG/YR)
                     POINT SOURCE
                     INDUSTRIAL  (KG/YR)
     OUTLET(S)
     (K&/YR)
      3105.
    176470.
                         COUNT
                           104
                            78
                            52
                            26
                            26
                             0
    
                           286
                           POINT SOURCE
                          SEPTIC TANKS  (KG/YR)
                                     5.
                                    90.
     PERCENT     LAKE SURFACE AREA  LOADING RATE
    RETENTION               (G/SQ M/YR)
       35.                      0.68
     LOSS                     19.5
                          NON-POINT SOURCE
                                (KG/YR)
                                 4800.
                               137030.
                                TOTAL LOADING
                                       (KG/YR)
                                        4805.
                                     137120.
       NON-POINT-SOURCE  NUTKlENT  EXPORT
        STREAM NAME                MEAN FLOW
                                     (CMS)
        BOULDER CREEK                 5.180
                        DRAINAGE AREA
                           (SO KM)
                            297.8
                        MEAN  TOTAL  P
                            (MG/L)
                            0.022
                  MEAN TOTAL N
                     (MG/L)
                      0.676
                    TOTAL P EXPORT
                    (KG/SO KM/YH)
                         12.
                     TOTAL N EXPORT
                     (KG/SU KM/YR)
                          371.
    VI. MEAN NUTRIENT  CONCENTRATIONS IN UNGAGEO STREAMS
        STREAM NAME                MfAN TOTAL C    MEAN TOTAL N
                                      (MG/L)          (MG/L)
        UNNAMED CREFK  Hi              0.063           1.108
    

    -------
    NAME
    COUNTY
    - BOYSEN RESERVOIR
    - FREMONT
                                  COMPENDIUM OF NATIONAL  EUTROPMICATION  SURVEY LAKES IN WYOMING
    
                                           (FUTROPHIC)
    STORET NO. - 5603
    
    I. MORPHOMETRY
                                  WORKING PAPER NO.   883.  NTIS  ACCESSION NO.  PB-
                                                                                        /A8
                     LAKE TYPE
    
                     IMPOUNDMENT
                       DRAINAGE AREA
                          (SO KM)
                        19945.60
           SURFACE AREA
             (SO KM)
             89.84
    MEAN DEPTH
     (METERS)
      10.4
    TOTAL INFLOW
       (CMS)
     45.717
    RETENTION TIME
        (DAYS)
        270.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT I V ITY(UMHOS)
              129.                454.
                                     MEAN SECCHI DISC
                                          (METERS)
                                            0.9
                               MEDIAN
                            TOTAL P(MG/L)
                               0.037
                        MEDIAN
                     OKTHO P(MG/L)
                        0.014
                          MEDIAN
                       INORG NIMG/LI
                          0.140
                          MEDIAN
                       TOTAL N(MG/L)
                          0.340
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT>
                6.3                oofxntooooo
                                                LIMITING  NUTRIENT  AT  SAMPLING  TIME
    
                                                 (  5/19/75) P  AND N (  9/  2/75)  P  AND N (10/17/75)  N
                  5/19/75
       GENERA
       FRAGILARIA
       ASTERIONELLA
       CHROOMONAS
       CENTRIC DIATOM
       CHYPTOMONAS
       OTHER
    
       TOTAL
                        SUMMARY OF PHYTOPLANKTON  DATA
                                        9/ 2/75
                     COUNT   GENERA
                      2777   APHAN1ZOMENON
                      2529   CHROOMONAS
                       397   CRYPTOMONAS
                       248   ANABAENA
                       124   OINOBRYON
                       100   OTHER
    
                      6175   TOTAL
                                           10/17/75
                         COUNT   GENERA
                          1129   CHROOMONAS
                           635   NAVICULA
                           212   APHANIZOMENON
                            71   CRYPTOMONAS
                            47   SYNEOHA
                            93   OTHER
    
                          2187   TOTAL
                                   COUNT
                                     350
                                     225
                                     125
                                      75
                                      50
                                     100
    
                                     925
                                                           cn
                                                           en
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        a. OUTPUT
         PHOSPHORUS
         NITROGEN
            POINT SOURCE
            MUNICIPAL  (KG/YR)
                   18750.
                   64780.
    
                 OUTLET(S)
                 (KG/YR)
                 30360.
               1277070.
                                             POINT  SOURCE
                                             INDUSTRIAL  (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS (KG/YR)
     PERCENT     LAKE SURFACE AREA LOADING RATE
    RETENTION              (G/SO M/YR)
       91.                     3.56
       52.                     29.4
                         NON-POINT SOURCE
                                (KG/YR)
                              301270.
                             2573715.
                               TOTAL LOADING
                                      (KG/YR)
                                    320020.
                                   2638496.
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        WIND RIVER                   39.900
        BADWATER CREEK                0.650
        DITCH  (01)                    0.040
        DITCH  (El)                    0.059
        FIVEMILE CREEK                4.200
        MUDDY CHEEK                   0.531
        WYOMING CANAL                 0.119
        COTTONWOOD CREEK              0.055
                                    DRAINAGE  AREA
                                        (SO KM)
                                       11370.1
                                        2092.7
                                        1082.6
                                        859.9
                                                    427.3
                        MEAN TOTAL P
                           (MG/L)
                            0.180
                            0.630
                            0.060
                            0.054
                            0.151
                            0.212
                            0.087
                            0.118
                 MEAN TOTAL
                    (MG/L)
                     1.188
                     1.749
                     0.597
                     1.351
                     3.590
                     1.440
                     0.899
                     1.351
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                        22.
                         3.
                        23.
                         2.
                    TOTAL N EXPORT
                    (KG/SO KM/YR)
                         137.
                          14.
                   •««»«•»«*»
                   »«•»*«•«•«
                         450.
                          27.
                                                                                                       4.
                                                                                                                        57.
    VI. MEAN NUTKIENT CONCENTK&TIONS  IN  UNGaGED  STREAMS
        STREAM NAME               MEAN  TOTAL  P     MEAN TOTAL  N
                                      (MG/L)           (MG/D
        POISON CREEK                  0.617            2.251
    

    -------
    BlfiDSEYE CKfFK                (1.037            1.611
    

    -------
    NAME       - LAKE OE SMET
    COUNTY     - JOHNSON  -
    STORET NO. - 5604
          COMPENDIUM OF NATIONAL EUTROPHICATION SURVEf LAKES  IN WYOMING
    
                  (MESO-EUTROPHIC)
    
          WORKING P4PER NO.  88*. NTIS ACCESSION NO. PB-277 050/AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
          DRAINAGE AREA
             (SO KM)
              25.90
           SURFACE AREA
             (SO KM)
             10. 74
              MEAN DEPTH
               (METERS)
                12.8
    TOTAL INFLOW
       (CMS)
      0.167
    RETENTION TIME
        (YEARS)
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT I VITY(UMHOS)
              167.                 629.
                        MEAN SECCHI DISC
                             (METERS)
                               2.3
                               MEDIAN
                            TOTAL P(MG/L)
                               0.033
                                  MEDIAN
                               ORTHO P(MG/L)
                                  0.006
                          MEDIAN
                       INORG NIMG/L)
                          0.040
                          MEDIAN
                       TOTAL NIMG/L)
                          0.620
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                11.2               •»««««»»«««
                                   LIMITING NUTRIENT AT SAMPLING  TIME
    
                                   ( 5/22/75) N        ( 8/29/75)  N
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/22/75
       GENERA
       CENTRIC DIATOM
       FRAGILARIA
       DIATOMA
       STEPHANOOISCUS
       FLAGELLATES
       OTHER
    
       TOTAL
                           8/29/75
        COUNT   GENERA
         5052   MELOSIRA
         llbO   FLAGELLATFS
          414   APHANIZOMENON
          373   ANABAENA
          124   ANACYSTIS(MICROCYSTIS)
          165   OTHER
                                 7288
                                         TOTAL
    
    COUNT
    1749
    875
    807
    673
    673
    807
    5584
    10/15/75
    GENERA
    APHANIZOMENON
    CHROOMONAS
    CRYPTOMONAS
    ANABAENA
    SPHAEROCYSTIS
    OTHER
    TOTAL
                                                          (10/15/75)  N
                                                           COUNT
                                                            2338
                                                             984
                                                             287
                                                             123
                                                              41
                                                               0
    
                                                            3773
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
                    POINT SOURCE
                    INDUSTRIAL  (KG/YR)
    OUTLET(S)
    (KG/YR)
     1030.
    11835.
     PERCENT
    RETENTION
     LOSS
       35.
                           POINT SOURCE
                          SEPTIC TANKS  (KG/YR)
                                    5.
                                  215.
                                   NON-POINT SOURCE
                                          (KG/YR)
                                           770.
                                          18075.
                               TOTAL LOADING
                                      (KG/YR)
                                        775.
                                      16290.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
                 0.07
                   1.7
    vi. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED  STREAMS
        STREAM NAME               MEAN TOTAL  P    MEAN TOTAL  N
                                      (MG/L)           (MG/L)
        LITTLE PINEY CREEK DIV.       0.025            0.680
        SHELL CREEK                   0.110            1.230
    

    -------
                                  COMPENDIUM OF  NATIONAL  FUTROPHICATION SURVEY LAKES IN WYOMING
    NAMf       - FLAMING GORGE wESERVOIM   (MESOTROPHIC—EUTROPHIC)
    COUNTY     - SWEETWATER. WY; DAGGETT,  UT
    STORET NO. - S605              «IGR*ING  PAPER  NO.   8Mb.  NT IS ACCESSION NO. PB-
                                                            /AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
      DRAINAGE AREA
         (SO KM)
       3910P.OO
    SURFACE AREA
      (SO KM)
     137.67
    MEAN DEPTH
     (METERS)
      33.9
    TOTAL INFLOW
       (CMS)
     66.182
    RETENTION TIME
        (YEARS)
          2.3
    II. PHYSICAL AND CHEMICAL CHARACTER 1STICS
             MEDIAN              MEDIAN
        ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
              160.                 5)14.
                    MFAN SECCHI DISC
                         (METERS)
                           3.4
                        MEDIAN
                     TOTAL P(MG/L)
                        0.014
                         MEDIAN
                     ORTHO  P(MG/L)
                         0.003
                           MEDIAN
                        INORG N(MG/L)
                           0.605
                           MEDIAN
                        TOTAL NIMG/L)
                           0.900
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL  A     ALGAL  ASSAY  CONTROL  YIELD
                (UG/L)              (MG/L—DRY  WT)
                5.6                  0.?  -    0.4  (  5)
                               LIMITING NUTRIENT  AT  SAMPLING TIME
    
                               ( b/15/75) P AND N (  8/  7/75)  P
                         SUMMARY  OF  PhYTOPLANKTON  DATA
                  5/15/75
       GENERA
       STEPHANODISCUS
       FRAG1LARIA
       DIATOMA
       CHROOMONAS
       NAVICULA
       OTHER
    
       TOTAL
                       &/ 7/7b
    COUNT   GENERA
     1981   CHRQOMOiMAS
      77S   APHANIZOMENON
      258   FRAGILARIA
      258   CRYPTOMONAS
       43   MELOSIRA
        0   OTHER
    
     3315   TOTAL
                                      9/22/75
                  COUNT  • GENERA
                   1331   APHANIZOMENON
                    951   CRYPTOMONAS
                    428   CHROOMONAS
                    333   OSCILLATORIA
                    190
                    428   OTHER
    
                   3b61   TOTAL
                                                   ( 9/22/75)  P  AND N
                                    COUNT
                                     1086
                                      827
                                      465
                                      103
                                                     2481
    IV. NUTRIENT LOADING  CHARACTERISTICS(LAKE)
        A.  INPUT
         PHOSPHORUS
         NITROGFN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
                        POINT  SOURCE
                        MUNICIPAL  IKG/YRI
                               40405.
                POINT SOURCE
                INDUSTRIAL  
                    POINT  SOURCE
                   SEPTIC  TANKS (KG/YR)
                             OUTLtT (S)
                             (KG/YR)
                 PERCENT
                RETENTION
                   87.
                 LOSS
                          NON-POINT SOURCE
                                (KG/YR)
                               145835.
                              2731180.
                                TOTAL LOADING
                                      (KG/fR)
                                     186240.
                                    2826435.
          LAKE SURFACE  AREA  LOADING RATE
                     IG/SQ  M/YR)
                         1.3S
                        20.5
       NON-POINT-SOURCE  NUTRIENT
        STREAM  NAME
    
        GREEN RIVFR
        CART CREEK
        W  FORK  F.AGLE  CREEK
        UPPER MARSH  CREEK
        BIRCH SPRING ORA*
        HENRYS  FORK
        BLACKS  FORK
        SAGE CREEK
     vi.  MEAN  NUTRIENT  CONCENTRATIONS IN UNGAGEO STREAMS
         STREAM  NAME                MEAN TOTAL  P    MEAN TOTAL N
                                      (MG/L)           (MU/L)
         CURRANT CREEK                 O.O^r           l.b6H
    EXPORT
    MEAN FLOW
    (CMS)
    4B.400
    0.402
    0.088
    0.076
    0.128
    2.360
    10.SOO
    O.?80
    
    DRAINAGE AREA
    (SO KM)
    25900.0
    72. b
    8.0
    llb.b
    62.2
    1346.8
    8029.0
    303.0
    
    MEAN TOTAL P
    (MG/L)
    0.060
    0.023
    0.018
    0.092
    0.086
    0.062
    0.124
    0.166
    
    MEAN TOTAL N
    (MG/L)
    1.027
    0.602
    0.792
    1.590
    20.570
    0.918
    1.308
    2.6b9
                                                                     TOTAL  P  EXPORT
                                                                     (KG/SO KM/YH)
                                                                            2.
                                                                            4.
                                                                            6.
                                                                            2.
                                                                            4.«
                                                                            4.
                                                                            9.
                                                                            5.
                                                                    TOTAL N EXPORT
                                                                    (KG/SU KM/YH)
                                                                          58.
                                                                         100.
                                                                         286.
                                                                          34.
                                                                         131.•
                                                                          52.
                                                                          68.
                                                                         104.
    

    -------
    MIDDLE MARSH CHEEK            0.031            1.52H
    SPRING CREEK                  O.P58            2.462
    UNNAMED CREEK  (Ml)            0.018            0.843
    * ESTIMATED
    

    -------
    NAME       - FREMONT LAKE
    COUNTY     - SUHLETTE
    STORET NO. - 5606
      COMPENDIUM OF NATIONAL EUTROPH1CATION SURVEY LAKES  IN WYOMING
    
              (OLIGOTROPHIC)
    
      FORKING PftPER NO.  886. NTIS ACCESSION NO. PB-        /AH
    I. MORPHOMETRY
                     LAKE  TYPE
    
                     NATURAL
      DRAINAGE »RtA
         (SO KM)
         ?9S.30
    SURFACE AREA
      (SO KM)
      20.23
    MEAN DEPTH
     (METERS)
      24.4
    TOTAL INFLOW
       (CMS)
      6.300
    RETENTION TIME
        (YEARS)
          2.5
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCTIVITY(UMHOS)
                14.                   1.
                    MEAN SECCMI DISC
                         (METERS)
                          13.3
                        MEDIAN
                     TOTAL PIMG/L)
                        0.006
                        MEDIAN
                     ORTHO  P(MG/L)
                        0.002
                           MEDIAN
                        INOHG NCMG/L)
                           0.040
                           MEDIAN
                        TOTAL N(MG/L)
                           0.220
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL  A     ALbAL  ASSAY  CONTROL  YIELD
                (UG/L)              (MG/L—DRY  *T>
                 3.8                «»»oooe»
                               LIMITING NUTRIENT  AT  SAMPLING TIME
                                ( 8/2S/7b> P
                                                   (10/17/75)  P
                        SUMMARY OF  PHYTOPLANKTON  DATA
                  8/28/7S
       GENERA
       CHLAMYDOMONAS
       ASTERIONELLA
       TAHELLARIA
       RHIZOSOLFNIA
       DINOHRYON
       OTHER
    
       TOTAL
                      10/17/75
    COUNT   GENF.RA                   COUNT
     3336   CHLAMYDOMONAS             3181
      128   ASTERIONELLA                468
       86   CHRYSOPHYTAN FLAGELLATES    281
       43   TAHFLLARIA                  140
       43   CHROOMOivlAS                   94
        0   OTHER                         0
                                  3636   TOTAL
     IV. NUTRIENT LOADING  CHARACTERISTICS (LAKF.)
        A.  INPUT
         PHOSPHORUS
         NITROGEN
        8. OUTPUT
         PHOSPHORUS
         NITROGEN
                        POINT  SOURCE
                        MUNICIPAL  (KG/YR)
                POINT SOURCE
                INDUSTRIAL  (KG/YR)
                             OUTLET (S)
                             (Mj/YR)
                              1870.
                                                                   4164
                    POINT  SOURCE
                   SEPTIC  TANKS  (KG/YR)
                             15.
                            570.
                          NON-POINT SOURCE
                                (KG/YR)
                                 2345.
                               224065.
                                TOTAL LOADING
                                      (KG/YR)
                                       2360.
                                     224635.
                 PERCENT     LAKE  SURFACE  AREA  LOADING RATE
                RETENTION               (G/SO  M/YR)
                   21.                      0.12
                   87.                      11.1
       NON-POINT-SOURCE  NUTRIENT  EXPORT
        STREAM  NAME                MEAN FLO*
                                     (CMS)
        PINE  CREEK                    S.090
                   ORAINAGE  AREA
                       (SO KM)
                        196.8
                 MEAN  TOTAL  P
                     (MG/L)
                     0.009
                  MEAN  TOTAL N
                     (MG/L)
                      0.841
                    TOTAL P EXPORT
                    (KG/SO KM/YR)
                          7.
                     TOTAL N EXPORT
                     (KG/SO KM/YR)
                          735.
    VI. MFAN NUTRIENT  CONCENTRATIONS IN UNGflGEU STREAMS
        STREAM  NAME                MEAN TOTAL P    MEAN TOTAL N
                                      (MG/L)           (MG/L)
        FALER CREEK                   0.011           O.S8H
    

    -------
    NAME
    COUNTY
    - GLENDO RESERVOIR
    - CONVERSE. PLATTE
                                  COMPENDIUM OF NATIONAL FUTROPHICATION  SURVEY  LAKES  IN  WYOMING
    
                                           (EUTROPHIC)
    STORET NO. - 5607
    
    I. MORPHOMETRY
                                  WORKING PAPER NO.  88?, NTIS  ACCESSION  NO.  PB-
                                                                                        /AB
                     LAKE TYPE
    
                     IMPOUNDMENT
                       DRAINAGE AREA
                           (SO KM)
                        50533.10
           SURFACE AREA
             (S(J KM)
             53.97
              MEAN DEPTH
               (METERS)
                18.3
    TOTAL INFLOW
       (CMS)
     47.113
    RETENTION TIME
        (DAYS)
        364.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS)
              148.                525.
                                     MEAN SECCHI DISC
                                          (MtTEKS)
                                             1.0
                               MEDIAN
                            TOTAL PIMG/L)
                               0.045
                                  MEDIAN
                               ORTHO PIMG/L)
                                  0.014
                          MEDIAN
                       INORG N(MG/L)
                          0.315
                          MEDIAN
                       TOTAL NtMG/L)
                          0.695
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                8.5                  0.6 -   5.3  ( 3)
                                                LIMITING NUTRIENT  AT  SAMPLING  TIME
    
                                                ( 5/23/75)  P        (  8/27/75)  P
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/22/75
       GENERA
       DIATOMA
       STEPHANODISCUS
       CRYPTOMONAS
       ASTERIONELLA
       NAVICULA
       OTHER
    
       TOTAL
                                        8/27/75
                     COUNT   GENERA
                       645   APHANIZOMFNON
                       469   NAVICULA
                       293   DIATOMA
                       176   RHOICOSPHFNIA
                        59   SCENEOESMUS
                       116   OTHFR
    
                       1758   TOTAL
                                                                                    10/14/75
                         COUNT
                          2407
                           193
                            4d
                            48
                            48
                             0
    
                          2744
                    GENERA
                    NAVICULA
                    MELOSIRA
                    DIATOMA
                    CHROOMONAS
                    STEPHANODISCUS
                    OTHER
    
                    TOTAL
                                                                                       (10/14/75)  P
                     COUNT
                       440
                       439
                       275
                       275
                       165
                       163
    
                      1757
                                           O5
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
            POINT SOURCE
            MUNICIPAL  (KG/YR)
                    2680.
                    8920.
    
                 OUTLET(S)
                 (KG/YR)
                 49205.
               1742630.
                                            POINT SOURCE
                                            INDUSTRIAL  (KG/YR)
     PERCENT
    RETENTION
       72.
       23.
                           POINT SOURCE
                          SEPTIC TANKS  (KG/YR)
                                    5.
                                  105.
                                   NON-POINT SOURCE
                                          (KG/YR)
                                        172270.
                                       2243640.
                               TOTAL LOADING
                                     (KG/YR)
                                    174955.
                                   2252665.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
                  3.24
                  41.7
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        NORTH PLATTE RIVER           47.060
                                    DRAINAGE AREA
                                        (SO KM)
                                      48813.7
                        MEAN TOTAL P
                           (MG/L)
                            0.117
                           MEAN TOTAL N
                              (MG/L)
                               1.476
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                         4.
                    TOTAL N EXPORT
                    (KG/SCI KM/YR)
                          45.
    VI. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGED STREAMS
        STREAM NAME               MEAN TOTAL P    MF.AN TOTAL  N
                                      (MS/L)           (MG/L)
        WHISKEY GULCH                 0.837            4.717
        ELKHORN CREEK                 0.010            0.298
        COTTONWOOD CREEK              0.150            1.231
        MUDDY CREEK                   0.068            1.772
        WILLOW CREEK                  0.084            1.903
    

    -------
    NAME
    COUNTY
    - KEYHOLE RESERVOIR
    - CROOK
    STORET NO. - 5608
    
    I. MORPnOMETRY
    COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN WYOMING
    
            (EUTROPHIC)
    
    WORKING PAPER NO.  888. NTIS ACCESSION NO. PB-277 051/AB
                     LAKE TYPE
    
                     IMPOUNDMENT
                       DRAINAGE AREA
                          (SO KM)
                         5180.00
                     SURFACE AREA
                       
                 (KG/YR)
                    210.
                 16H40.
                                            POINT SOURCE
                                            INDUSTRIAL  IKG/YR)
                                     POINT  SOURCE
                                    SEPTIC  TANKS  (KG/YR)
               PERCENT
              RETENTION
                 99.
                 H5.
                                              70.
                                   NON-POINT  SOURCE
                                          (KG/YR)
                                          16330.
                                         112735.
                                TOTAL LOADING
                                      (KG/YR)
                                      17600.
                                     114395.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
                  0.46
                   3.0
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME                MEAN FLOW
                                     (CMS)
        rtELLE FOURCHE RIVER           0.596
        WIND CREEK                    0.136
        MULE CREEK                    0.021
                                    DRAINAGE  AREA
                                        (SOI  KM)
                                        4325.3
                                         240.9
                                          33.7
    VI. MEAN NUTRIENT CONCENTRATIONS  IN  UNGAGEO  STREAMS
        STREAM NAME                MEAN TOTAL P     MEAN  TOTAL  N
                                      (MG/L)           (MG/D
        MILLER CREEK                  0.?«4            1 . 736
                                   MEAN  TOTAL
                                      (MG/L)
                                      0.618
                                      1.217
                                      0.358
                           MEAN TOTAL  N
                               (MG/L)
                               2.872
                               2.948
                               1.892
                    TOTAL  P EXPORT
                    (KG/SO KM/YR)
                          2.
                        22.
                          7.
                     TOTAL N EXPORT
                     (KG/SO KM/YR)
                           12.
                           52.
                           37.
    

    -------
    NAME       - OCtAN LAKE
    COUNTY     - FREMONT
    STOHET NO. - 5609
      COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN  WYOMING
    
              (FUTROPHIC)
    
      WORKING PAPER NO.  889, NTIS ACCESSION NO. PB-       /AB
    I. MORPHOMETRY
                     LAKE TYPE
    
                     NATURAL
             MEDIAN
        ALKALINITYIMG/L)
              200.
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY wT)
                7.5                «»«
    
    
    
    
    NON-POINT SOURCE
          (KG/YR)
           6465.
          92050.
    TOTAL LOADING
          (KG/YR)
           6535.
          92275.
                                                          LAKE  SURFACE  AREA LOADING RATE
                                                                    (G/SQ M/YR)
                                                                        0.26
                                                                         3.7
    MEAN TOTAL P
    (MG/L)
    
    
    0.047
    0.119
    n.riHQ
    MEAN TOTAL N
    (MG/L)
    
    
    0.413
    1.618
    1 -7?O
    TOTAL P EXPORT
    (KG/SO KM/YR)
    
    
    
    
    TOTAL N EXPORT
    (KG/SU KM/YR)
    
    
    «*
    «o»**»*»»«
    

    -------
    NAMF
    COUNTY
    - SEMINOF. RESERVOIR
    - CARBON
    STORET NO. - 5610
    
    I. MORPHOMF.TRY
                                  COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES  IN WYOMING
    
                                          (MESOTROPHIC—EUTROPHIC)
    
                                  WOP-KING RAPE* NO.  890. NTIS ACCESSION NO. PB-277  036/AB
                     LAKE TYPE
    
                     IMPOUNDMENT
                       ORAINAGE ARtA
                           (SO KM)
                        28979.SO
                                                   SURFACE AREA
                                                     (S(J KM)
                                                     48.77
    MEAN DEPTH
     (METERS)
      25.6
    TOTAL INFLOW
       (CMS)
     43.309
    RETENTION TIME
        (DAYS)
        343.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IvITY(UMHOS)
              107.                334.
                                     MFAN SECCHl  DISC
                                          (METERS)
                                             1.3
                                                                       MEDIAN
                                                                    TOTAL P(MG/L)
                                                                       0.030
                        MEDIAN
                     ORTHO PIMG/L)
                        0.007
                           MEDIAN
                        INORG  N1MG/L)
                           0.130
                           MEDIAN
                        TOTAL N9.9
    6055.4
    134.7
    MEAN TOTAL
    (MG/L)
    0.070
    0.191
    0.094
    0.0t>3
    0.144
    0.183
                                                                                 MEAN TOTAL N
                                                                                     (MG/L)
                                                                                     1.066
                                                                                     13.929
                                                                                     1.236
                                                                                     0.9J9
                                                                                     1.835
                                                                                     1.849
                                                                                      TOTAL  P  EXPORT   TOTAL N EXPORT
                                                                                       (KG/SO KM/YR)     (KG/SQ KM/YR)
                                                                                             4.                50.
                                                                                             3.               112.
                                                                                            11.               122.
                                                                                            17.               203.
                                                                                             5.                SO.
                                                                                            11.               108.
    

    -------
    NAME       - SODA LAKE
    COUNTY     - SUHLETTE
    STORF.T NO. - 5611
    
    I. MORPHOMETRY
    II
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
               (UG/L)              (MG/L—DRY  WT)
                5.6                      6.8
    
                        SUMMARY OF PHYTOPLANKTON DATA
                  8/28/75
       GENERA                   COUNT
       CYANOPHYTAN COCCOID COL.    221
       ELAKATOTHRIX                85
       APHANIZOMENON               17
       OTHER                         0
                                  COMPENDIUM OF NATIONAL  EUTROPHICAT ION SURVEY LAKES IN WYOMING
    
                                           (FUTROPHIC)
    
                                  WORKING PAPER NO.   891. NTIS  ACCESSION NO.  PB-       /AB
    LAKE TYPE DRAINAGE AREA
    ' (SO KM)
    PHYSICAL AND CHEMICAL CHARACTERISTICS
    MEDIAN MEDIAN
    ALKALINITY (MG/L) CONDUCT I V IT Y (UMHOS)
    2090. 2472.
    SURFACE AREA
    (SQ KM)
    1.11
    MEAN SECCHI DISC
    (METERS)
    2.9
    MEAN DEPTH TOTAL INFLOW RETENTION TIME
    (METERS) (CMS) • (YEARS)
    MEDIAN MEDIAN MEDIAN
    TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L)
    0.063 0.014 0.040
    
    MEDIAN
    TOTAL NIMG/L)
    2.520
                                                            LIMITING NUTRIENT AT SAMPLING TIME
    
                                                            (  8/28/75)  N        (10/20/75) N
       TOTAL
                                  323
    IV
    NUTRIENT LOADING CHARACTERISTICS(LAKE)
    A. INPUT
                                                                                                                                          05
                                                                                                                                          cn
                       POINT SOURCE
                       MUNICIPAL  (KG/YR)
    POINT SOURCE
    INDUSTRIAL (KG/YR)
                                                                    POINT SOURCE
                                                                   SEPTIC TANKS (KG/YR)
    PHOSPHORUS
    NITROGEN
    8. OUTPUT
    
    
    
    OUTLET (S)
    (KG/YR)
    
    
    
    PERCENT
    RETENTION
    *
    *
                                                                                     NON-POINT SOURCE
                                                                                           (KG/YR)
                                                                                       eoooooooeo
    TOTAL LOADING
          (KG/YR)
      *«*«****•*
      »»*»«•«*•*
                                                          LAKE  SURFACE AREA LOADING RATE
                                                                    (G/SU M/YR)
                                           o»oo LAKE  SAMPLING  ONLY  *«««
    

    -------
    NAME       - VIVA NAUGHTON RESERVOIR
    COUNTY,     - LINCOLN
    STORET NO. - S612              WORKING  PAPER  NO.
    
    I. MORPHOMFTRY
                             COMPENDIUM OF NATIONAL EUTROPHICAT ION SURVEY LAKES IN WYOMING
    
                                      (F.UTROPHIC)
    
                                                892. NTIS  ACCESSION NO.  PB-277 037/AB
    
    II.
    
    LAKE TYPE DRAINAGE AREA
    (SO KM)
    IMPOUNDMENT h24.20
    PHYSICAL ANO CHEMICAL CHARACTERISTICS
    MEDIAN MEDIAN
    ALKALINITYIMG/L) CONDUCT IV I TY (UMHOS)
    145. 841.
    SURFACE AREA
    
    -------
                                  COMPENDIUM UF NATIONAL FUTROPHICATION  SURVEY  LAKES  IN  WYOMING
    
    NAME       - WOODRUFF NARROWS HeS.     (EUTROPHIC)
    COUNTY     - UINTA
    STORET NO. - 5613             WORKING  PAPER NO.   893*  NTIS  ACCESSION NO.  PB-277 047/AB
       MORPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
               DRAINAGE AREA
                  (SO KM)
                 2030.60
           SURFACE AREA
             (SO KM)
              7.08
              MEAN DEPTH
               (METERS)
                 4.9
    TOTAL INFLOW-
       (CMS)
      7.069
    RETENTION TIME
        (DAYS)
         58.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MG/L)   CONDUCT IV ITY(UMHOS1
              142.                229.
                             MEAN SECCril DISC
                                  (METERS)
                                    0.8
                               MEDIAN
                            TOTAL P(M(j/L)
                               0.069
                                  MEDIAN
                               ORTHO PIMG/L)
                                  0.019
                          MEDIAN
                       INORG N(MG/L)
                          0.105
    III. BIOLOGICAL CHARACTERISTICS  (LAKE)
        MEAN CHLOROPHYLL A    ALGAL  ASSAY CONTROL  YIELD
                (UG/L)              (MG/L—DRY WT)
                13.0                ««»o»«oooo
                                        LIMITING NUTRIENT AT SAMPLING TIME
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/16/75
       GENERA
       FLAGELLATES
       CHROOMONAS
       CENTRIC DIATOM
       CRYPTOMONAS
       SURIRELLA
       OTHER
    
       TOTAL
                                8/ 7/75
             COUNT   GENFRA
              7723   MERISMOPEDIA
              1296   SCHROEDERIA
               810   CHROOMONAS
               216   ANAHAENA
                54   CRYPTOMONAS
                55   OTHER
    
             10154   TOTAL
                                        ( 5/16/75) N
                         COUNT
                           676
                           386
                           145
                            97
                            97
                            48
    
                          1449
                                                            ( 8/ 7/75) N
                               9/18/75
                    GENESA
                    ANABAENA
                    STEPHANODISCUS
                    APHANIZOMENON
                    MELOSIRA
    
                    OTHER
    
                    TOTAL
                                                                               ( 9/18/75) N
                          MEDIAN
                       TOTAL N(MG/L)
                          0.620
                                                                                                  (10/16/75)  N
                                        10/16/75
                     COUNT   GENERA
                      1144   APHANIZOMENON
                       654   STEPHANODISCUS
                       327   CRYPTOMONAS
                       122   CHROOMONAS
                             SCHROEDERIA
                         0   OTHER
    
                      2247   TOTAL
                                       COUNT
                                         205
                                         164
                                          82
                                          41
                                          41
                                           0
    
                                         533
    05
    •si
    IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
            6685.
           17260.
    
         OUTLET(S)
         (KG/YR)
         17420.
        215255.
                                            POINT  SOURCE
                                            INDUSTRIAL  (KG/YR)
                           POINT SOURCE
                          SEPTIC TANKS  (KG/YR)
     eoooooeoeo
    
     PERCENT
    RETENTION
       59.
       59.
                                   NON-POINT SOURCE
                                         (KG/YR)
                                         35970.
                                        505895.
                               TOTAL LOADING
                                     (KG/YR)
                                     42655.
                                    523155.
    LAKE SURFACE AREA LOADING RATE
              (G/SQ M/YR)
                  6.02
                  73.9
       NON-POINT-SOURCE NUTRIENT EXPORT
        STREAM NAME               MEAN FLOW
                                     (CMS)
        8EAH RIVER                    7.060
                            ORAINAGE AREA
                               (SO KM)
                               1947.7
                        MEAN TOTAL P
                           (MG/L)
                            0.122
                           MEAN TOTAL N
                              (MG/L)
                               1.730
                   TOTAL P EXPORT
                   (KG/SO KM/YR)
                        18.
                    TOTAL N EXPORT
                    (KG/SO KM/YR)
                         2*6.
    vi. MEAN NUTRIENT CONCENTRATIONS  IN UNGAGEO  STREAMS
        STREAM NAME               MEAN TOTAL  P     MEAN TOTAL  N
                                      (MG/L)           (MG/L)
        WHITNEY CANYON CREEK          0.157            1.810
        RED CANYON CREEK              0.230            1.441
    

    -------
                                  COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES  IN  WYOMING
    NAME       - YELLOWTAIL RESERVOIR     (MESOTROPHIC—FUTROPHIC)
    COUNTY     - RIGHORN, WY: BIGHORN, CARBON; MT
    STORET NO. - 5614             WORKING PAPER NO.  894, NTIS ACCESSION NO. PB-279  255/AB
    I. MURPHOMETRY
                     LAKE TYPE
    
                     IMPOUNDMENT
               DRAINAGE  AREA
                  (SO KM)
                50937.50
           SURFACE  AREA
             (SO  KM)
             51.34
       MEAN DEPTH
        (METERS)
         26.8
    TOTAL INFLOW
       (CMS)
    106.180
    RETENTION TIME
        (DAYS)
        158.0
    II. PHYSICAL AND CHEMICAL CHARACTERISTICS
             MEDIAN             MEDIAN
        ALKALINITY(MGXL)   CONDUCT IVITY(UMHOS)
              139.                541.
                             MEAN SECCHI  DISC
                                  (METERS)
                                 .   3.4
                               MEDIAN
                            TOTAL P(MG/L)
                               0.026
                           MEDIAN
                        ORTHO PIMG/L)
                           0.017
                           MEDIAN
                        INOR6  N(MGXL)
                           0.310
                           MEDIAN
                        TOTAL N(M6/L)
                           0.500
    III. BIOLOGICAL CHARACTERISTICS (LAKE)
        MEAN CHLOROPHYLL A    ALGAL ASSAY CONTROL YIELD
               (UG/L)              (MG/L—DRY WT)
                5.4                      0.6
                                        LIMITING NUTRIENT AT SAMPLING TIME
    
                                        (  5/21/75)  P       ( 8/29/75) P AND N  (10/17/75)  P
                        SUMMARY OF PHYTOPLANKTON DATA
                  5/21/75
       GENERA
       FRAGILARIA
       MELOSIRA
       ASTERIONELLA
       LYNGBYA
       NAVICULA
       OTHER
    
       TOTAL
                                B/29/ 0
             COUNT   GENERA
               357   APHANIZOMENON
               268   SKELETONEMA
               223   CARTERU
               134   ANACYSTIS(MICROCYSTIS)
               134   CHROOMONAS
               359   OTHER
    
              1475   TOTAL
                                           10/17/ 0
                         COUNT   (iENERA
                          1728   CHROOMONAS
                           241   NAVICULA
                           201   SYNEDRA
                           201   MTZSCHIA
                           201   OSCILLATORIA
                           201   OTHEH
    
                          2773   TOTAL
                                      COUNT
                                         363
                                         161
                                          81
                                          81
                                          40
                                         100
    
                                         826
    IV. NUTRIENT LOADING CHAPACTERISTICS(LAKE)
        A. INPUT
         PHOSPHORUS
         NITROGEN
        B. OUTPUT
         PHOSPHORUS
         NITROGEN
    POINT SOURCE
    MUNICIPAL (KG/YR)
            6055.
           15835.
    
         OUTLET(S)
         (KG/YR)
         66V63.
       5064620.
    POINT SOURCE
    INDUSTRIAL (KG/YR)
          2125.
         48840.
                                                                   POINT SOURCE
                                                                  SEPTIC TANKS  (KG/YR)
                            NON-POINT  SOURCE
                                   (KG/YR)
                                 1040045.
                                 5282760.
                                TOTAL LOADING
                                      (KG/YR)
                                    1048225.
                                    5347435.
     PERCENT     L*KE SURFACE AREA LOADING RATE
    RETENTION              (G/SQ M/YR)
       94.                    20.42
        5.                    104.2
    V. NON-POINT-SOURCE NUTRIENT EXPORT
        STREAH NAME
    
        BIGHORN RIVER
        SHOSHONF RIVER
        DRY HEAD CREEK
        CROOKED CREEK
               MEAN FLOW
                 (CMS)
                 64.660
                 ?9.430
                  0.300
                  0.300
       DRAINAGE AREA
          (Stt KM)
         40831.3
          6086.5
           197.6
           300.4
    MEAN T-OTAL. P    MEAN TOTAL ^i     TOTAL  P EXPORT   TOTAL N EXPORT
       (MG/t)           H>iG/L)        (KG/SO KM/YR)     (KG/SO KM/YR)
        0.322           1.513             16.               76.
        0.413           2.081             57.              309.
        0.035           1.296              6.               69.
        0.100           1.108              2.               29.
    

    -------