U.S. ENVIRONMENTAL PROTECTION AGENCY
           NATIONAL EUTROPHICATION SURVEY
                     WORKING PAPER SERIES
                                           REPORT
                                            ON
                                     E, V, SPENCE RESERVOIR
                                         COKE COUNTY
                                           TEXAS
                                         EPA REGION VI
                                     WORKING PAPER No, G53
 CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
                              and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA

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                              REPORT
                                ON
                       E, V, SPENCE RESERVOIR
                            COKE COUNTY
                              TEXAS
                           EPA REGION VI
                       WORKING PAPER No, 658
WITH THE COOPERATION OF THE
 TEXAS WATER QUALITY BOARD
          AND THE
    TEXAS NATIONAL GUARD
         MARCH, 1977

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                               CONTENTS
                                                           Page
  Foreward                                                   ii
  List of Texas Study Reservoirs                              iv
  Lake and Drainage Area Map                                 vi

  Sections
  I.  Conclusions                                             1
 II.  Lake and Drainage Basin Characteristics                  4
III.  Lake Water Quality Summary                               5
 IV.  Nutrient Loadings                                      10
  V.  Literature Reviewed                                    14
 VI.  Appendices                                             15

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                                 11
                          FOREWORD
    The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to freshwater lakes and
reservoirs.

OBJECTIVES

    The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations,
and impact on selected freshwater lakes as a basis for formulating
comprehensive and coordinated national, regional, and state management
practices relating to point-source discharge reduction and non-point
source pollution abatement in lake watersheds.

ANALYTIC APPROACH

    The mathematical and statistical procedures selected for the
Survey's eutrophication analysis are based on related concepts that:

        a.  A generalized representation or model relating
    sources, concentrations, and impacts can be constructed.

        b.  By applying measurements of relevant parameters
    associated with lake degradation, the generalized model
    can be transformed into an operational representation of
    a lake, its drainage basin, and related nutrients.

        c.  With such a transformation, an assessment of the
    potential for eutrophication control can be made.

LAKE ANALYSIS

    In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented.  The report is formatted to provide state environmental
agencies with specific information for basin planning [§303(e)J, water
quality criteria/standards review [§303(c)], clean lakes [§314(a,b)],
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.

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                                Ill
     Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
fresh water lakes.  Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.

ACKNOWLEDGEMENT

     The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental  Protection Agency)
expresses sincere appreciation to the Texas  Water Quality Board
for professional involvement, to the Texas National Guard for
conducting the tributary sampling phase of the Survey, and to
those Texas wastewater treatment plant operators who voluntarily
provided effluent samples.

     Hugh C.  Yantis, Jr., Executive Director of the Texas Water
Quality Board, and John B. Latchford, Jr., Director, and the staff
of the Field Operations Division provided invaluable lake documen-
tation and counsel during the Survey, reviewed the preliminary
reports, and provided critiques most useful  in the preparation of
this Working Paper series.

     Majo'r General Thomas Bishop, the Adjutant General of Texas,
and Project Officer Colonel William L. Seals, who directed the
volunteer efforts of the Texas National Guardsmen,  are also grate-
fully acknowledged for their assistance to the Survey.

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                                 TV
                  NATIONAL EUTROPHICATION SURVEY
                         STUDY RESERVOIRS
                          State of Texas
NAME
Amistad
Bastrop
Bel ton
Braunig
Brownwood
'Buchanan
Caddo
              •
Calaveras
Canyon
Colorado City
Corpus Christi
Diversion
Eagle Mountain
Fort Phantom Hill
Houston
Kemp
Lake O'The Pines
Lavon
Lewisville (Garza-Little Elm)
Livingston
COUNTY
Val Verde
Bastrop
Bell, Coryell
Bexar
Brown
Burnet, Llano
Harrison, Marion, TX;
Caddo Parish, LA
Bexar
Coma!
Mitchell
Jim Wells, Live Oak, San
Patricio
Archer, Baylor
Tarrant, Wise
Jones
Harris
Baylor
Camp, Marion, Morris,
Upshur
Collin
Denton
Polk, San Jacinto, Trinity,
Walker

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Lyndon B.  Johnson

Medina

Meredith


0. C. Fisher (San Angelo)

Palestine


Possum Kingdom


Sam Rayburn



Somervi1le

E. V. Spence

Stamford

Stillhouse Hollow

Tawakoni

Texoma


Travis

Trinidad

Twin Buttes

White River

Whitney

Wright Patman (Texarkana)
Burnet, Llano

Bandera, Medina

Hutchinson, Moore,
Potter

Tom Green

Anderson, Cherokee,
Henderson, Smith

Palo Pinto, Stephens,
Young

Angelina, Jasper.
Nacogdoches, Sabine, San
Augustine

Burleson, Lee, Washington

Coke

Haskell

Bell

Hunt, Rains, Van Zandt

Cooke, Grayson TX; Bryan,
Johnston, Love, Marshall, OK

Burnet, Travis

Henderson

Tom Green

Crosby

Bosque, Hill

Bowie, Cass

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— 32'30'
V
                    101' 30'
                  Texas
                                       Lake
                                       J.B. Thomas
L%
          101'00'
./
u
                                                                                                              100'30'
                                                                icqi
             Map Location
    i Natural
    \Darn
     .Lake
Red
Lake
    ••  V

                                                                        Buford   /
                                                                          •



                                                              Colorado (City  .•
                                                                                       -
                    • Fairview
                                Sand    • Coahoma
                                Springs
                                  Beafe.
                                                la tan



                                                 "\
                     Big Spring
  Westbrook •Colorado
             City
                 da,,, x.      rf- £^..

                             Champion Creek .

               '.Spade  X*"7  Reservoir   |

                '\0     C         -^   /'
    Silver
                                                                                                  EVSPENCE
                                                                                                              ;
                                                                                                             'RESERVOIR
                                                                                                               am
                                                                                                                 M Robert
                                                                                                                   'Lee
                                                t .—I Colorado
                                                 J     River

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                            E.  V.  SPENCE RESERVOIR
                               STORE! NO.  4828

 I.   CONCLUSIONS
     A.   Trophic Condition:
             Survey data indicate  that E.  V.  Spence Reservoir is eutrophic;
         i.e.,  well supplied with  nutrients and quite productive.  Whether
         nutrient enrichment is beneficial or deleterious depends on the
         actual or potential effect on the uses of the reservoir.  In this
         regard, no nuisance conditions are known to personnel  of the Texas
         Water Quality Board and there is little or no impairment of the .
         designated beneficial  uses of this water body.
             E. V. Spence Reservoir ranked eighteenth in overall trophic
         quality when the 39 Texas reservoirs sampled in 1974 were compared
         using a combination of six parameters*.  Eighteen of the reservoirs
         had less and one had the  same median total phosphorus, eight had
         less and two had the same median dissolved phosphorus, six had less
         and one had the same median inorganic nitrogen, 19 had less mean
         chlorophyll a^, and 21  had greater mean Secchi disc transparency.
         Marked depression or depletion of dissolved oxygen with depth
         occurred at stations 1 and 2 in August.
             Survey limnologists observed an algal bloom and rooted aquatic
         plants along the shoreline in August.  Blue-green algae were dom-
         inant in the August and October phytoplankton samples.
* See Appendix A.

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B.  Rate-Limiting Nutrient:
        Because of significant Tosses of phosphorus in both algal
    assay samples between times of collection and the beginning of
    the assays, the results are not representative of conditions in
                        /
    the reservoir at the times the samples were taken (03/04/74 and
    10/29/74).
        The reservoir data indicate that phosphorus was the limiting
    nutrient at all stations in May and at station 3 in October, and
    nitrogen was limiting at all  stations in March and at stations 1
    and 2 in October.
C.  Nutrient Controllability:
        1.  Point sources—No known point sources impacted E. V. Spence
    Reservoir during the sampling year.
        The present phosphorus loading of 0.55 g/m2/yr is more than
    twice that proposed by Vollenweider (Vollenweider and Dillon, 1974)
    as a eutrophic loading (see page 13).  If Vol|enweider's eutrophic
    level is applicable to Texas reservoirs, it is likely that the
    trophic quality of the reservoir will deteriorate unless the present
    phosphorus loading is reduced.  However, Survey data indicate that
    all the phosphorus inputs are from non-point sources, arid it is
    questionable whether such inputs can be controlled.

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    2.  Non-point sources--Non-point sources contributed 100%
of the phosphorus load to E. V. Spence Reservoir during the
sampling year.  The Colorado River added 94.0% of the total
load, Paint Creek, 0.4%; and the ungaged tributaries were
estimated to have contributed 2.4%.
    The phosphorus -export rates of the Colorado River and Paint
Creek were 0.3 and 0.8 kg/km2/yr, respectively.  These rates are
quite low compared to the rates of unimpacted tributaries of
other reservoirs in the general area.

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II.   RESERVOIR AND DRAINAGE BASIN CHARACTERISTICS1"
                    tt
     A.   Morphometry  :

         1.   Surface area:   25.62 kilometers2.

         2.   Mean depth:   6.7 meters.

         3.   Maximum depth:  >15.8 meters.

         4.   Volume:  171.654 x 106 m3.

         5.   Mean hydraulic retention  time:   7.1  years (based on outflow).

     B.   Tributary and Outlet:
         (See Appendix C  for flow data)

         1.   Tributaries  -

                                               Drainage        Mean flow
             Name                              area (km2)*     (m3/s_ec)*

             Colorado River                      40,124.3         1.830
             Paint Creek                              67.6         0.033
             Minor tributaries &
              immediate drainage -                  549.1         0.196

                              Totals             40,741.0         2.059

         2.   Outlet -

             Municipal and  irrigation  diversion       0.0         0.710
             Colorado Ri.ver                      40,766.6         Q.052

                              Totals             40,766.6**       0.762**

     C.   Precipitation***:

         1.   Year of sampling:  63.4 centimeters.

         2.   Mean annual:  48.3 centimeters.
 t Table of metric conversions—Appendix B.
 tt Ivie, 1976.
 * For limits of accuracy,  see Working Paper No.  175, "...Survey Methods,
   1973-1976".
 ** Includes area of reservoir; lesser outflow due to evaporation (Ivie, op.  cit)
 *** See Working Paper No.  175.

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III.   WATER QUALITY SUMMARY
      E.  V. Spence Reservoir was sampled four times in 1974 by means of
  a pontoon-equipped Huey helicopter.   Each time, samples for physical
  and chemical  parameters were collected from a number of depths at three
  stations on the reservoir (see map,  page vi).  During each visit, a
  single  depth-integrated (4.6 m to surface) sample was composited from
  the stations  for phytoplankton identification and enumeration; and during
  the first and last visits, a single  18.9-liter depth-integrated sample
  was composited for algal assays.   Also each time, a depth-integrated
  sample  was collected from each of the stations for chlorophyll a_ analysis.
              •
  The maximum depths sampled were 15.8 meters at station 1, 9.4 meters  at
  station 2, and 6.7 meters at station 3.
      The sampling results are presented in full in Appendix D and are
  summarized in the following table (the August nutrient samples were not
  preserved properly and were not analyzed).

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                             A. SUMMARY OF PHYSICAL AND
                                  CHEMICAL CHARACTERISTICS FOR E V SPENCE RESERVOIR
                                   STORET CODE 4828
                             1ST SAMPLING ( 3/ 4/74)

                                   3 SITES
                                             2ND SAMPLING  ( 5/15/74)

                                                   3 SITES
3RO SAMPLING ( 8/ 5/74)

      3 SITES
PARAMETER

TEMP (C)

DISS OXY 

CNDCTVY  (MCROMO)

PH  (STAND UNITS)

TOT ALK  (MG/L)

TOT P  

ORTHO  P  (MG/L)

N02+N03  (MG/L)

AMMONIA  (MG/L)

KJEL N (MG/L)

INORG  N  (MG/L)

TOTAL  N  (MG/L)

CHLRPYL  A  (UG/L)

SECCHI (METERS)
     RANGE

 11.1  -  14.1

  9.6  -  10.4

1614.  - 1785.

  8.2  -   8.4

 135.  -  154.

0.014  - 0.027

0.006  - 0.010

0.030  - 0.040

0.020  - 0.040

0.400  - 0.700

0.050  - 0.080

0.440  - 0.730

  4.7  -   5.9

  0.7  -   0.9
MEAN
12.3
9.9
1692.
8.3
145.
0.018
0.008
0.032
0.028
0.555
0.060
0.586
5.3
0.8
MEDIAN
13.1
9.9
1705.
8.3
148.
0.017
0.008
0.030
0.030
0.600
0.060
0.630
5.4
0.8
RANGE
21.4
5.2
2155.
8.0
133.
0.027
0.005
0.020
0.030
0.400
0.050
0.420
3.4
0.4
- 23.9
7.8
- 2340.
8.3
- 138.
- 0.045
- 0.011
- 0.080
- 0.110
- 0.800
- 0.190
- 0.880
6.2
1.1
MEAN
23.2
7.0
2264.
8.2
135.
0.036
0.006
0.063
0.064
0.567
0,127
0.630
4.7
0.7
MEDIAN
23.3
7.0
2247.
8.2
136.
0.036
0.006
0.075
0.070
0.500
0.145
0.580
4.5
0.7
RANGE
24.6
0.0
2610.
7.7
««»»««
««««»*
»»»»««
••*""*
«»»»««
......
..«««»

ia.4
0.9
- 25.5
6.8
- 2703.
8.1
MEAN
25.3
5.4
2675.
8.0
MEDIAN
25.4
6.2
2683.
8.0
—««•«».»»««•»»*»««*«»««
_«««»«.«««««»«»««««*»««
.««....»..«.«*«......».

>.«»»«««<
nnnntoo
—«..««.»..««..«...«.».«

>...«»«. 4
»«.««««
..........a....*.......

- 16.9
- 1.8
	 *•<
14*2
1.4
>.«»»«»
13.4
1.4

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                             A. SUMMARY OF PHYSICAL  AND  CHEMICAL  CrIARACTEK1STICS  FOR  £  V  SPENCE  RESERvOIR
                                                          STOkET CODE  4628
                             4TH SAMPLING  < 10/29/74)
PARAMETER
TEMP 
DISS OXY (MG/L)
CNDCTVY  (MCKOMOI
PH (STAND UNITS)
TOT ALK  (MG/L)
TOT P (MG/L)
ORTHO P  (MG/L)
N02»N03  (MG/L)
AMMONIA  (MG/L)
KJEL N  (MG/L)
INORG N  (MG/L)
TOTAL N  (MG/L)
CHLRPYL  A  (UG/L)
SECCHI  (METERS)
     RANGE
 17.9  -
  6.8  -
1303.  - 1686.
  8.2  -
  98.  -
0.036  - 0.074
0.008  - 0.023
0.020  - 0.250
0.030  - 0.090
0.600  - 1.000
0.070  - 0.280
0.620  - 1.150
 19.7  -  24.8
  0.6  -
3 SITES
MEAN
3
4
i .
5

4
3
'0
'0
0
iO
'0
8
1
18.7
7.1
1529.
8.4
104.
0.050
0.012
0.034
0.056
0.700
0.140
0.784
22.8
0.9
MEDIAN
18.7
7.2
1657.
8.4
105.
0.040
0.010
0.020
0.050
0.700
0.090
0.720
24.0
0.9

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                                   8
  B.  Biological characteristics:

      1.  Phytoplankton* -
          Sampling
          Date

          03/04/74
          08/05/74
          10/29/74
Dominant
Genera
1.
2.
3.
4.
5.
Tetraedron sp.
Scenedesmus sp.
Cryptomonas sp.
Ch'roomohas sp.
Synedra sp.
Other genera
                                                Total
1.  Oscillatoria sp.
2.  Raphidiopsis sp.
3.  Lyngbya sp.
4.  DactyTococcdpsis sp.
5.  Tetraedron sp.
    Other genera

                Total

1.  Oscillatoria sp.
2.  Dactylococcopsis sp.
3.  Tetraedron sp.
4.  Raphidiopsis sp.
5.  Oocystis sp.
    Other genera

                Total
Algal Units
per ml	

   2,407
   2,295
     263
     226
     188
     414

   5,793

  13,345
   5,537
   3,691
   2,343
   2,130
   2.626
                          29,672

                          13,268
                           6,761
                           1,732
                             887
                             507
                           2,958

                          26,113
The May phytoplankton sample was lost in shipment.

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    2.   Chlorophyll  a^ -

        Sampling              Station                    Chlorophyll
        Date                  Number                     (yg/1)
        03/04/74                 1                             4.7
                                 2                             5.4
                                 3                             5.9

        05/15/74                 1                             3.4
                                 2                             4.5
                                 3               .              6.2

        08/05/74                 1                            12.4
                                 2                            13.4
                                 3                            16.9

        10/29/74                 1                            19.7
                                 2                            24.0
                                 3                            24.8

C.  Limiting Nutrient Study:

        There was a significant loss of phosphorus in both algal

    assay samples between time of collection and the beginning of

    the assays.  Therefore, the algal assay results are not repre-

    sentative of conditions in the  reservoir at the times the sam-

    ples were taken (03/04/74 and 10/29/74).

        The reservoir data indicate nitrogen limitation at all sta-

    tions in March and at stations  1 and 2 in October; i.e., the mean

    inorganic nitrogen/orthophosphorus ratios were 9/1 or less.

    All stations were limited by phosphorus in May, as was station

    3 in October; i.e., the mean N/P ratios were 17 to 1  or greater,

    and phosphorus limitation would be expected.

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                                     10
IV.   NUTRIENT LOADINGS
     (See Appendix E for data)
     For the deteYmi nation of nutrient loadings, the Texas National
 Guard collected monthly near-surface grab samples from each of the
 tributary sites indicated on the map (page vi), except for the months
 of April and Hay when two samples were collected.  Sampling was begun
 in September, 1974, and was completed in August, 1975.
     Through an interagency agreement, stream flow estimates for the
 year of sampling and a "normalized" or average year were provided by
 the Texas District Office of the U.S. Geological Survey for the
 tributary sites nearest the lake.
     In this report, nutrient loads for sampled tributaries were
 calculated using mean annual concentrations and mean annual flows.
                                                      t
 The outlet and diversion loads were calculated using mean reservoir
 concentrations at station 1 and the mean annual, outlet and diversion
 flows.
     Nutrient loads for unsampled "minor tributaries and immediate
 drainage" ("ZZ" of U.S.G.S.) were estimated us-ing the mean concen-
 trations in Paint Creek at station B-l and the mean annual ZZ flow.
     No known point sources impacted E. V. Spence Reservoir during
 the sampling year.

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                                    11
    A.   Waste Sources:
        1.   Known municipal - None
        2.   Known industrial - None
    B.   Annual Total  Phosphorus Loading - Average Year:
        1.   Inputs -
                                              kg P/           % of
            Source                            yr              total
            a.  Tributaries (non-point load) -
                Colorado River                13,275           94.0
                Paint Creek                       55            0.4
            b.  Minor tributaries & immediate
                 drainage (non-point load) -     340            2.4
            c.  Known municipal STP's - None
            d.  Septic tanks - None*
            e.  Known industrial - None
            f.  Direct precipitation** -         450            3.2
                        Total                 14,120          100.0
        2.  Outputs -
            Lake outlet - Diversions             670
                          Colorado River          50
                             Total               720
        3.  Net annual P accumulation - 13,400 kg.
* I vie, 1976.
** See Working Paper No. 175.

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                                    12
    C.  Annual Total Nitrogen Loading - Average Year:
        1.  Inputs -
                                              kg N/           % of
            Source                            yr              total
            a.  Tributaries (non-point load) -
                Colorado River                 83,565          70.4
                Paint Creek                     1,070           0.9
            b.  Minor tributaries & immediate
                 drainage (non-point load) -    6,365           5.4
            c.  Known municipal STP's - None
            d.  Septic tanks - None*
            e.  Known industrial  - None
            f.  Direct precipitation** -       27,660          23.3
                        Total                  118,660         100.0
        2.  Outputs -
            Lake outlet - Diversions           13,925
                          Colorado River        1,020
                           Total                14,945
        3.  Net annual N accumulation - 103,715 kg.
    D.  Mean Annual Non-point Nutrient Export by Subdrainage Area:
        Tributary                             kg P/km2/yr     kg N/km2/yr
        Colorado River                            0.3             2.1
        Paint Creek                               0.8            15.8
*ivie, 1976.
** See Working Paper No. 175.

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                                13
E.   Yearly Loads:

        In the following table, the existing phosphorus loadings

    are compared to those proposed by Vollenweider (Vollenweider

    and Dillon, 1974).  Essentially, his "dangerous" loading is

    one at which the receiving water would become eutrophic or

    remain eutrophic; his "permissible" loading is that which

    would result in the receiving water remaining oligotrophic

    or becoming oligotrophic if morphometry permitted.   A meso-

    trophic loading would be considered one between "dangerous"

    and "permissible".

        Note that Vollenweider's model  may not be applicable to

    water bodies with short hydraulic retention times.

                              Total Phosphorus       Total Nitrogen
                      	Total   Accumulated    Total   Accumulated

    grams/m2/yr             0.55       0.52        4.6         4.0
    Vollenweider phosphorus loadings
     (g/m2/yr) based on mean depth and mean
     hydraulic retention time of E. V. Spence Reservoir:

        "Dangerous"  (eutrophic loading)            0.20
        "Permissible"  (oligotrophic loading)       0.10

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V.  LITERATURE REVIEWED

    Ivie, 0. H., 1976.  Personal communication (lake morphometry, diver-
        sions, and evaporation loss).  Colorado River Municipal Water
        Dist., Big Springs.

    Vollenweider, R. A., and P. J. Dillon, 1974.   The application of
        the phosphorus loading concept to eutrophication research.
        Natl. Res. Council  of Canada Publ. No. 13690, Canada Centre
        for Inland Waters,  Burlington, Ontario.

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                                    15
VI.   APPENDICES
                                  APPENDIX A
                                 LAKE RANKINGS

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LAKE QAT* TO SE USE') 'N RANKING^

LAKE
CODE  LAKE NAME

4601  AMISTAD LAKE

4802  BASTROP LAKE

4803  8ELTON RESERVOIR

4804  BRAUNIG LAKE

4805  BROWNWOOD LAKE

4806  LAKE BUCHANAN

4807  CADDO LAKE

4808  CALAVERAS LAKE

4809  CANYON RESERVOIR

4810  LAKE COLORADO CITY

4811  CORPUS CRISTI LAKE

4812  DIVERSION LAKE

4813  EAGLE MOUNTAIN LAKE

4814  FT PHANTOM HILL LAKE

4815  GARZA LITTLE ELM RESEKVO

4816  KEMP LAKE

4817  HOUSTON LAKE

4818  LAKE OF THE PINES

4819  LAVON RESERVOIR

4820  LIVINGSTON LAKE

4831  LYNDON B JOHNSON LAKE     '

4822  MEDINA LAKE

4823  LAKE MEREDITH

4824  PALESTINE LAKE

4825  POSSUM KINGDOM RESERVOIR

4826  SAN ANGELO RESERVOIR

4827  SAM RAY8URN RESERVOIR

4828  E V SPENCE RESERVOIR
MEDIAN
TOTAL P
0.013
0.02?
0.016
0.1 34
0.027
0.036
0.055
0.038
0.010
0.042
0.113
0.025
0.024
0.060
0.045
0.023
0.097
0.031
0.063
0.196
0.042
0.010
0.021
0.031
0.023
0.098
0.029
0.036
MEDIAN
INO^G N
0.500
0*090
0.185
0.150
0.100
0.250
0.070
0.060
0.450
0.090
0.130
o.oeo
0.070
0.105
0.380
0.110
0.260
0.090
0.160
0.555
0.420
0.600
0.070
0.180
0.070
0.140
0.150
0.080
500-
MEAN SEC
371.474
419.917
378.312
461.625
470.375
437.625
463.333
461.667
384.812
473.625
475.187
470.111
469.625
474.909
475.782
455.000
486.187
440.000
485.333
465.469
456.500
403.562
439.312
442.625
419.045
481.000
439.458
462.583'
MEAN
CHLOWA
2.-'«2
12*392
8.025
22.762
4.887
8.606
14.808
22.500
2.500
12.675
19.756
15.867
5.662
6.317
14.156
10.217
16.650
12.919
5.400
16.112
8.100
12.944
3.037
10.619
9.495
24.675
6.267
11.775
15-
MIN 00
14.900
15.000
15.000
14.800
14.400
15.000
11.400
13.000
14.800
10.200
14.000
9.000
11.000
9. BOO
14.600
10.400
12.400
15.000
8.800
15.000
14.900
15.000
14.900
14.600
15.000
10.200
15.000
15.000
MEDIAN
DISS O^TriO P
0.009
0.007
0.007
0.062
0.007
0.012
0.01J
0.007
0.006
0.012
0.050
0.009
0.008
0.022
0.018
0.007
0.036
0.011
0.018
0.128
0.013
0.004
0.009
0.010
0.009
0.011
0.009
" 0.008

-------
LAKE DATA TO BE USED IN RANKINGS

LAKE
CODE  LAKE NAME

4829  SOMERVILLE LAKE

4830  STAMFORD LAKE

4831  STILLHOUSE HOLLO* RESEWV

4832  TAWAKOM LAKE

4833-  TEXARKANA LAKE

4834  TEXOMA LAKE

4835  TRAVIS LAKE

4836  TRINIDAD

4837  TWIN BUTTES RESERVOIR

4838  WHITE RIVER RESERVOIR

4839  WHITNEY LAKE
MEDIAN
TOTAL P
0.053
0.073
O.Olb
0.046
0.106
0.042
0.018
0.389
0.029
0.020
0.028
MEDIAN
INOrtO N
0.115
O.C60
0.160
0.100
0.120
0.160
0.250
0.110
. 0.250
0.110
0.120
500-
MEAN SEC
473.833
482. 7U
406.250
466.417
47B.500
451.321
389.913
479.500
454.917
434.500
430.500
MEAN
CHLORA
24.491
18.457
3.917
18.246
19.119
12.493
5.595
24.300
8.708
4.333
6.912
15-
MIN DO
13.000
10.600
15.000
13.200
12.400
15.000
15.000
10.000
14.800
15.000
15.000
MEDIAN
UISS OrtTriO
0.013
0.012
0.010
0.013
0.030
0.018
0.007
0.240
0.009
0.009
0.008

-------
OF LA*E5 KITH
                             VAi-JLS  (NUMBER Of LAKES rflTi
LAKE
CODE  LAKE NAME
4801  AMISTAO LAKE
4802  BASTSOP LAKE
4803  8ELTON RESERVOIR
4304  8RAUNIG LAKE
4805  BROdNWOOD LAKE
4806  LAKE BUCHANAN
4807  CAOOO LAKE
4808  CALAVERAS LAKE
4809  CANYON RESERVOIR
4810  LAKE COLORADO CITY
4811  CORPUS CRISTI LAKE
4812  DIVERSION LAKE
4813  EAGLE MOUNTAIN LAKE
4814  FT PHANTOM HILL LAKE
4815  GARZA LITTLE ELM RESERVO
4816  KEMP LAKE
4817  HOUSTON LAKE
4818  LAKE OF THE PINES
4819  LAVON RESERVOIR
4820  LIVINGSTON LAKE
4821  LYNDON B JOHNSON LAKE
4822  MEDINA LAKE
4823  LAKE MEREDITH
4824  PALESTINE LAKE
4825  POSSUM KINGDOM RESERVOIR
4826  SAN ANGELO RESERVOIR
4.827  S.AM RAYBURN RESERVOIR
MEDIAN
TOTAL P
95
79
92
5
66
47
26
45
99
39
8
68
71
24
34
76
16
54
21
3
39
99
82
54
74
13
59
--
( 36)
( 30)
( 35)
( 2)
( 25)
( 18)
( 10)
( 17)
( 37)
( 14)
( 3)
< 26)
( 27)
( 9)
( 13)
( 29)
( 6>
( 20)
( 8)
( 1>
( 14)
( 37)
( 3D
( 20)
( 28)
( 5)
( 22)
, ,-,
MEDIAN
IN03G N
5
7f
26
42
70
21
91
100
8
76
47
83
91
66
13
61
16
76
29
3
11
0
91
32
91
45
39
,.-
( 2)
( 28)
( 10)
( 16)
( 26)
( 7)
( 33)
( 38)
( 3)
( 28)
( 18)
( 31)
( 33)
( 25)
( 5)
( 22)
( 6)
( 28)
( 11)
( 1)
( 4)
( 0)
( 33)
( 12)
< 33)
( 17)
( 15)
- 7-,
500-
MEAN SEC
100
82
97
50
29
74
42
47
95
26
18
32
34
21
16
55
0
66
3
39
53
89
71
63
84
8
68
' C
( 38)
( 31)
( 37)
( 19)
( 11)
( 28)
( 16)
( 18)
( 36)
( 10)
( 7)
< 12)
< 13)
( 8)
( 6)
< 21)
( 0)
< 25)
( 1)
( 15)
( 20)
( 34)
( 27)
( 24)
( 32)
( 3)
( 26)
f '71
MEAN
CHLOHA
100
47
68
8
87
63
32
11
97
42
13
29
79
74
34
55
24
39
84
26
66
37
95
53
58
0
76
<^r
( 38)
( 18)
( 26)
( 3)
( 33)
( 24)
( 12)
( 4)
( 37)
( 16)
( 5)
< ID
< 30)
( 28)
< 13)
( 21)
( 9)
( 15)
( 32)
( 10)
( 25)
( 14)
( 36)
( 20)
( 22)
( 0)
( 29)
( 'S>
Ib-
MIN L>0
39
17
17
49
58
17
76
67
49
38
61
97
79
95
55
84
72
17
100
17
39
17
39
49
17
88
17
>7
( 14)
( 0)
( 0)
( 17)
( 22)
( 0)
( 29)
( 25)
< 17)
( 33)
( 23)
( 37)
( 30)
( 36)
( 21)
( 32)
( 27)
( 0)
( 38)
( 0)
( 14)
( 0)
( 14)
( 17)
( 0)
( 33)
( 0)
( Q)
MEDIAN
OISS OUThO P
63
92
84
5
84
39
30
92
97
39
8
63
76
16
21
92
11
46
21
3
30
100
63
51
63
46
63
76
( 21)
( 34)
( 31)
( 2)
( 31)
( 14)
( 10)
( 34)
( 37)
( 14)
( 3)
( 21)
( 28)
( 6)
( 7)
( 34)
( 4)
< 17)
( 7)
( 1)
< 10)
( 38)
( 21)
( 19)
( 21)
( 17)
< 21)
( 28)
INDEX
NO
40<:
393
3B4
159
394
261
297
362
445
310
155
372
430
296
173
423
139
298
258
91
238
342
441
302
387
200
322
321

-------
PERCENT OF  LAKES  WITH  HIGHER VALUES  (NUMBER OF L4KES *ITH HIGHER VALUES)
LAKE
CODE   LAKE  NAME

4829   SOMERVILLE  LAKE

4830   STAMFORD LAKE

4831   STILLHOUSE  HOLLOW

4832   TAWAKONI LAKE

. 4833   TEXARKANA LAKE

4834   TEXOMA LAKE

4635   TRAVIS LAKE

4836   TKINIOAD

 4837   TWIN BUTTES RESEKVOIR

 4838   WHITE RIVER RESERVOIR

 4839  WHITNEY LAKE
MEDIAN
TOTAL P
29 I
18 (
88 (
32 (
11 <
39 (
88 (
0 (
59 (
84 (
63 (
11)
7)
33)
12)
4)
14)
33)
0)
22)
32)
24)
MEDIAN 500-
INORG N MEAN SEC
55
V7
37
70
51
34
21
61
21
61
51
( 21)
< 37)
( 14)
( 26)
( 19)
( 13)
< 7)
( 22)
( 7)
( 22)
( 19)
24 (
5 (
67 (
37 (
13 <
61 (
92 (
11 (
58 <
76 (
79 (
9)
2)
33)
14)
5)
23)
35)
4)
22)
29)
30)
MEAN
CHLOrtA
3 (
18 <
92 (
21 (
16 (
45 <
82 <
5 (
61 (
89 (
71 (
1)
7)
35)
8)
6)
17)
3D
2)
23)
34)
27)
15- MEDIAN
MIN oo DISS O^THO H
67
82
17
63
72
17
17
92
49
17
17
( 25)
( 3D
< 0)
( 24)
( 27)
( 0)
( 0)
( 35)
( 17)
( 0)
( 0)
30 I
39 (
51 (
30 (
13 (
21 (
84 (
0 (
63 (
63 (
76 (
10)
14)
19)
10)
5)
7)
3D
0)
21)
21)
28)
INOEX
NO
20B
259
372
253
176
217
384
169
311
390
357

-------
      PANK*1) PV iNOE* NOS.
RANK  LAKE CODE  LAKE NAME                INDEX NO

   i  4809       CANVON RESERVOIR           445
   2  4823       LAKE MEREDITH              441
   3  4813       EAGLE MOUNTAIN LAKE        430
   4  4816       KEMP LAKE                   423
   5  4801       AMISTAO LAKE               402
   6  4805       3RO*NWOOD  LAKE             394
   7  4802       BASTRuP LAKE               393
   8  4838       WHITE RIVEK RESERVOIR      390
   9  4825       POSSUM K1NGOOM RESERVOIR   387
  10  4835       TRAVIS LAKE                384
  11  4803       BELTON RESERVOIR           384
  12  4831       STILLHOUSE HOLLOW RESERV   372
  13  4812       DIVERSION  LAKE             372
  14  480B       CALAVERAS  LAKE             362
  15  4839       WHITNEY LAKE               357
  16  4822       MEDINA LAKE                342
  17  4827       SAM RAYBURN RESERVOIR      322
  18  4828       E V SPENCE RESERVOIR       321
  19  4837       TWIN BUTTES RESERVOIR      311
  20  4810       LAKE COLORADO CITY         310
  21  4824       PALESTINE  LAKE             302
  22  4818       LAKE OF THE PINES          298
  23  4807       CADOO LAKE                 297
  24  4814       FT PHANTOM HILL LAKE       296
  25  4806       LAKE BUCHANAN              261
  26  4830       STAMFORD LAKE              259
  27  4819       LAVON RESERVOIR            258

-------
LAKES RANKED BY INDEX NOS.
RANK  LAKE CODE  LAKE NAME
  29  4B21       LYNDON B JOHNSON LAKE
  30  4834       TEXOMA LAKE
  31  4829       SOMERVILLE LAKE
  32  4826       SAN ANGELO RESERVOIR
  33  4833       TEXARKANA LAKE
  34  4815       GARZA LITTLE ELM RESERvO
  35  4836       TRINIDAD
  36  4804       BRAUNIG LAKE
  37  4811       CORPUS CRISTI LAKE
  38  4817       HOUSTON LAKE
  39  4820       LIVINGSTON LAKE
INDEX NO

   238
   217
   208
   200
   176
   173
   169
   159
   155
   139
    91

-------
    APPENDIX B





CONVERSION FACTORS

-------
                CONVERSION FACTORS


Hectares x 2.471 = acres

Kilometers x 0.6214 = miles

Meters x 3.281 = feet

Cubic meters x 8.107 x 10~4 = acre/feet

Square kilometers x 0.3861 = square miles

Cubic meters/sec x 35.315 = cubic feet/sec

Centimeters x 0.3937 = inches
  «
Kilograms x 2.205 = pounds

Kilograms/square kilometer x 5.711 = Ibs/square mile

-------
    APPENDIX C
TRIBUTARY FLOW DATA

-------
                                    SJSl'T AMY  H.OH  Hit OKHo.T ION FOk
                                                                                               i 6/76
LAKE CODE 4828
E. V. Sf>EMCE
SUB-DRAINAGE
TnlBJTARY AREAtSQ KM) JAN
482HA1
4828A2
432BB1
4628^^
40766.6
40124.3
67.6
575.0
O.OOb
0.23
0.001
0.011
FEri
0.008
0.28
0.011
0.054
MAR
0.011
0.002
.0.054
NORMALIZED FLOwS(CMS)
APR MAY JUN JJL AUG
O.C17
1.08
0.026
0.156
0.020
3.71
0.164
0.821
0.227
2.04
0.051
0.275
0.057
1.22
0.028
O.lbl
0.142
7.56
0.011
0.269
SEP
0.085
2.78
0.034
0.224
OCT
0.017
0.54
U.054
0.244
Nuv/
0.008
0.59
0.006
JEC
0.028
0.23
0.003
0.023
MEA,
0.052
1.83
0.033
0. 196
                                                                    SUMMARY
                        TOTAL DRAINAGE  AREA  OF  LAKE =
                        SUM OF SUB-OPAINAGE  AREAS   =
                                      40766.6
                                      40766.8
                            TOTAL  FLO*  IN
                            TOTAL  FLOW  OUT
                               24.56
                                0.63
     MEAN MONTHLY FLOWb AND OAILY FLOWS(CMS)
TRIBUTARY   MONTH   YEAR
4828A1
         MEAN FLOW  DAY
4828A2
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
74
74
74
74
75
75
75
75
75
75
75
75
74
74
74
74
75
75
75
75
75
75
75
75
FLOW  DAY
FLOW  DAY
FLOrf
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
8.382
13.309
1.501
0.595
0.510
0.708
0.252
0.136
5.154
0.538
6.145
5.890
8
5
2
8
5
1
2
6
4
22
20
3
8
5
2
7
. 5
1
2
6
4
22
20
3
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 20
0.0 25
0.0
0.0
o.o
0.037
0.340
4.672
- 0.623
0.651
0.906
0.368
0.170
0.057
0.170
20.9fi3
2.860
                                                                     0.0
                                                                     0.0

-------
                                              t-,.1,'.-; i -Jr O
                                                               -UK
                                                                                            (j 3/ i 1> < b
LAKE CODE 48?8     E. V. SPEMCE

     MEAN MONTHLY FLOWS ANU  DAILY  FLOWS(CMS)

TRIBUTARY   MONTH    YEAk     MEAN FLOW   DAY
4828ZZ
9
10
11
12
1
2
3
4
5
6
7
9
9
10
11
12
1
2
3
4
5
6
7
a
74
74
74
74
75
75
75
75
75
75
75
75
74
74
74
74
75
75
75
75
75
75
75
75
                                 0.0
                                 0.0
                                 0.0
                                 0.0
                                 0.0
                                 0.0
                                 0.0
                                 0.0
                                 0.0
                                 0.0
                                 0.0
                                 0.0
                                 0.283
                                 0.850
                                 0.028
                                 0.028
                                 0.028
                                 0.057
                                 0.014
                                 0.008
                                 0.283
                                 0.028
                                 0.340
                                 0.340
                                          5
                                          2
                                          7
                                          5
                                          1
                                          2
                                          6
                                          4
                                          7
                                         20
                                          3
                                                    FLO*  DAY
0.0
0.0
0.0
c.o
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
                                                                      FLOW
                                                                                         FLOW
20
25
22
0.0
0.0
0.0

-------
        APPENDIX D





PHYSICAL and CHEMICAL DATA

-------
Ei  RCTRirvAL JATK  ?*,,'0?
                                                                31  55 2<*.0 100 33 43.0
                                                                £  v SPENCt RESEWvOIH
                                                                4*061   I

DATE TIME DEPTH
F30M OF
TO DA/ FEET
74/03/04 13 00 0000
13 00 0005
13 00 0015
13 00 0032
74/05/15 13 ?5 0000
13 ?5 0005
13 25 0015
13 ?5 0027
74/08/05 13 45 0000
13 45 0005
13 45 0015
13 45 0025
13 45 0040
74/10/29 09 50 0000
09 50 0005
09 50 0015
09 50 0035
09 50 0052

DATE TIME DEPTH
FROM OF
TO DAY FEET
74/03/04 13 00 0000
13 00 0005
13 00 0015
13 00 0032
74/05/15 13 25 0000
13 25 0005
13 25 0015
13 25 0027
74/08/05 13 45 0000
74/10/29 09 SO 0000
09 50 0005
09 50 0009
09 50 0015
09 50 0035
OJ SO 0052

00010
WATER
TEMP
CENT
13.3
13.3
12.6
11.1
23.3
23.3
23.1
23.0
25.4
25.4
25.4
25.3
24.6
19.2
19.2
19.2
19.2
19.3
30665
PHOS-TOT

MG/L P
0.014
0.016
0.014
0.015
0.033
0.027
0.029
0.028

0.044
0.04U

0.037
0.040
0.052


00300 00077 00094
00 T-(4NSP CNOUCTVY
SECCHI FIELD
MG/L INCHES M1CPOMHO
36
1C. 4
10.0
9.6
43
7. B
7.8
7.4
6.2 72
6.2
6.0
3.0
0.0
36
6.8
/
7.4
32217 00031
CHLRPHYL INCDT LT
A REMNING
UG/L PERCENT
4.7



3.4



12.4
19.7
5.0
1.0



1705
1702
1661
1618
2245
2241
2236
2233
2662
2662
2662
2658
2610
1673
1686
1682
1682
1663



















11EPALE
J
S 2111202
003R FEET DEPTH
00400 00410 00610 00625 00630 00671
PH T ALK NH3-N TOT KJEL N02&N03 PnOS-JlS
CAC03 TOTAL N N-TOTAL ORTflO
SU MG/L MG/L MG/L MG/L MG/L P
8'. 40
8.40
8.35
8.30
8.30
8.30
8.30
8.25
7.90
8.00
8.00
7.80
7.70
8.20
8.25
8.30
8.30
8.30



















137 0.030 0.500 0.030 0.008
136 0.020 0.500 0.030 0,007
135 0.020 0.500 0.030 0.008
135 0.040 0.400 0.040 0.009
133 0.030 0.700 0.080 0.006
133 0.060 0.500 0.070 0.006
133 0.060 0.400 0.070 0.006
135 0.030 0.400 0.020 0.005



106 0.090 1.000 0.030 0.023
105 0.060 0.700 0.020K 0.008
106 0.070 0.600 0.020K 0.008
107 0.070 0.700 0.020K 0.008
107 0.090 0.700 0.020K 0.010



















       K VALUE KNOWN TO BE

-------
hti^Ifiv'AL UA.E  .'.j/O
                                                             482802
                                                            31  56  25.0  100 35 09.0
                                                            E V  SPEN^d  *ESEPVOI*
                                                            43081    TEXAS
DATE
FROM
TO
74/03/04



74/05/15



74/08/05



74/10/29



00010
TIMF. DEPTH WATER
OF TEMP
DAV FEET
12
12
12
12
13
13
13
13
14
14
14
14
10
10
10
10
30
30
30
30
05
05
05
05
15
15
15
15
20
20
20
20
0000
0005
0015
0027
0000
0005
0015
0031
0000
0005
0015
0030
0000
0005
0015
0031
CENT
13.8
13.1
12.2
11.3
23.3
23.3
23.0
21.4
25.5
25. S
25.5
25.4
18.7
18.7
18.6
18.5
11EPALE5

00300
00

MG/L

10.2
10.2
9.6

7.4
6.8
5.2
6.0
6.2
6.0
4.8
7.4


6.8

00077
T94NSP
SECCHI
INCHES
32



28



54



42




00094
CNiOUCTVY
FIELD
MIC^OMHO
1730
1710
1614
1629
2256
2248
2230
2155
2689

2689
2677
1660
1657
1657
1656
3
00400
PH

SU
6.30
8.40
8.30
8.20
8.30
8.25
8.00
8.00
8.00
8.00
8.10
7.90
8.50
8.40
8.40
8.40

00410
T ALK
CAC03
MG/L
151
153
154
153
137
136
136
138




106
104
104
105
211
0032
00610
NH3-N
TOTAL
MG/L
O.C30
0.020
0.030
0.030
0.070
0.070
0.040
0.110




O.ObO
0.050
0.050
0.060
1202


FEET DEPTH
00625
TOT KJEL
N
MG/L
0.600
0.500
0.600
0.600
0.800
0.500
0.500
0.600




o.eoo
0.600
0.600
0.600
00630
N02J.N03
N-TOTAL
MG/L
0.030
0.030
0.030
0.030
0.070
0.080
0.020
0.080




0.020K
0.020K
0.020K
0.020K
00&71
PrlOS-OIS
ORTrlO
MG/L P
0.006
0.008
0.009
0.009
0.007
0.006
0.005
0.006




0.008
0.018
0.008
0.008
DATE
FROM
TO
74/03/04



74/05/15



74/08/05

74/10/29



00665 32217 00031
TIME DEPTH PHOS-TOT CHLRPHYL INCDT LT
OF A REMNING
DAY FEET
12
12
12
12
13
13
13
13
14
14
10
10
10
10
30
30
30
30
05
05
05
05
15
15
20
20
20
?0
0000
0005
0015
0027
0000
0005
0015
0031
0000
0011
0000
0005
0015
0031
MG/L P UG/L PERCENT
0
0
0
0
c
0
0
0


0
0
0
0
.017 5.4
.018
.016
.020
.036 4.5
.033
.036
.040
13.4
1.0
.036 24.0
.040
.038
.03d
   K  VALUE KNOWN TO BE
   LESS THAN INDICATED

-------
31 5d 11.0 100 36 47.0
E V b?EMC_
        TEXAS
llErALES


DATE
FRON-
TO
74/03/04


74/05/15



74/08/05



74/10/39




DATE
FROM
TO
74/03/04


74/05/15



74/08/05
74/10/89







TIME DEPTH
OF
DAY FEET
12 05 0000
12 05 0005
12 05 0015
12 40 0000
12 40 0005
12 40 0015
12 40 0021
It 45 0000
14 45 0005
14 45 0015
14 45 0022
10 45 0000
10 45 0005
10 45 0015
10 45 0022

TIME DEPTh
OF
DAY FEET
12 05 0000
12 05 0005
12 05 0015
12 40 0000
12 40 0005
12 40 0015
12 40 0021
14 45 0000
10 45 0000
10 45 0002
10 45 0003
10 45 0005
10 45 0015
10 45 0022

00010
WATEk
TEMP
CENiT
14.1
13.1
12.7
23.9
23.9
23.6
23.4
25.2
25.2
25.0
24.9
18.1
18.1
17.9
17.9
OC665
PHOS-TOT

MG/L P
0.022
0.019
0.027
0.045
0.040
0.044
0.044

0.074


0.073
0.068
0.069

00300
DO

MG/L

9.8
9.6

6.6
7.0
6.6
6.8
6.4
6.4
6.4
7.2
7.4
7.0
7.2
32217
CHLRPHYL
A
UG/L
5.9


6.2



16.9
24.8






00077
TR«NSP
SECCHI
INCHES
29


17



36



24



00031
INCOT LT
REMNING
PERCENT









5.0
1.0




00094
CNDUCTVY
FIELD
MICROMHO
1765
1728
1729
2340
2339
2327
2318
2700
2703
2698
2689
1214
1214
1207
1203

















s
3
00400
Ph

SU
8.40
8.30
8.30
8.20
8.20
8.15
8.15
8.10
8.10
8.10
8.00
8.40
8.40
8.35
8.40



















00410
T ALK
CAC03
MG/L
146
148
151
136
136
137
135




98
101
99
101


















211
0020
00610
NH3-N
TOTAL
MG/L
0.030
0.030
0.030
0.070
0.070
0.070
0.040




0.030
0.030
0.040
0.040


















1202


FEET OEHTH
00625
TOT KJEL
N
MG/L
0.700
0.600
0.600
0.800
0.600
0.500
0.500




0.900
0.700
0.600
0.600


















00630
N02^N03
N- TOTAL
MG/L
0.030
0.030
0.040
0.080
0.080
0.080
0.030




0.250
0.220
0.220
0.210


















00671
PhOS-DIS
ORTHO
MG/L P
0.007
0.010
0.009
0.006
0.011
0.007
0.007




0.014
0.013
0.013
0.012



















-------
  APPENDIX E
TRIBUTARY DATA

-------
7 6v 03/10
                                            32  u3 00.0 100 46 00.0 4
                                            COLORADO rtUE*
                                            43       f.b DEAD INDIAN
                                            T/E v SPcNCE rJESERvUih
                                            2NDPY *D BKUG 5 MI w OF SILVER
                                            HEr'ALES             2111204
                                             OuOO FEET  OEPTn  CLASS 00
DATE
FROM
TO
74/09/08
74/10/05
74/11/02
74/12/07
75/01/05
75/02/01
75/03/02
75/04/06
75/04/20
75/04/25
75/05/04
75/06/22
75/07/20
75/08/03
OC630 006?5
TIME DEPTH N02t>NG3 TOT NJEL
OF N-TOTAL N
DAY FEET
10
12
12
10
08
14
09
10
10
12
10
09
11
10
55
30
45
30
30
30
00
30
00
30
00
00
00
00
MG/L
d
0
0
0
0
0
0
0
0

c
0
0
0
.003
.024
.704
.064
.072
.012
.005
.010
.010

.010
.010
.005
.010
MG/L
1.
1.
1.
2.
2.
1.
1.
1.
0.
3.
1.
1.
0.
1.
000
000
000
600
100
300
750
350
550
200
450
330
950
000
00610 00671
Nril-N HriOS-DlS t
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.

0.
0.
0.
0.
035
045
135
032
040
032
030
065
067

040
045
025
025
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.

0.
c.
0.
c.
p
040
015
110
120
370
224
105
105
093

085
055
035
225
00665
'HG5-TOT
MG/L P
0.130
0.060
0.23C
0.200
0.52C
0.360
0.250
0.230
0.221
0.190
-0.190
0.1/b
0.120
0.340

-------
                                                                   4823^1
                                                                  3l"5J 10.0 100 35 07.0 A
                                                                  HAJuT CRttrv
                                                                  nd      7.5 EDITH
                                                                  T/E V SPENCE SESEHVOI^
                                                                  br(00 1.4 il j» JC1 riwY 53 2.5 M SE EDITH
                                                                  llE^ttLES             211120'.
                                                                   000^0 FEET  UEPTh  CLASS 00
                      00630     00625     00610      00671      00665
  DATE   TIME OEPTn N02&N03   TOT KJEL   NH3-N     PHOS-OIS  PHOS-TOT
  FROM    OF        N-TOTAL      N       TOTAL      ORTHO
   TO    DAY  FEET    MG/L      MG/L      MG/L      MG/L P     MG/L P

75/06/07 11 06         0.180     0.850     0.170      0.015     0.055

-------