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
                                          CENTRAL UNITED STATES
                                          WORKING PAPER NO. 476
     CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
                                 and
    ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
-.';•<;. P.O. 699-444)

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         A  COMPENDIUM  OF  LAKE AND  RESERVOIR
           DATA COLLECTED BY THE NATIONAL
            EUTROPHICATION SURVEY  IN THE
                CENTRAL UNITED  STATES
                WORKING PAPER NO.  476
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 third year of the Survey

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(1974). Geographically, this compendium includes data on lakes and
reservoirs in Arkansas, Iowa, Kansas, Louisiana, Missouri, Nebraska,
North Dakota, Oklahoma, South Dakota, and Texas.
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 (east, north-
central, and southeastern States); and Working Paper No. 477 includes
the data obtained in 1975 (Rocky Mountain and far-western 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 stucli.es, 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 1974. 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 (MG/L) - total alkalinity, as CaCO 3 , in milligrams
per liter.
MEDIAN CONDUCTIVITY (IJMHOS) - 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 of all samples,
in micrograms per liter.
ALGAL ASSAY CONTROL YIELDS (MG/L-DRY WT) - for many of the water
bodies are based on values, in milligrams per liter dry weight,
obtained from samples collected during the first (spring) and
last (fall) samplings. 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 capricornutum 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 nitrogen
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 the
N/P ratio. 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 “ND” 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 (GISQ M/YR) - the total loading for
the sampling year divided by the lake surface area
( k /. r x 1O- ) in grams per square meter of surface area per
year.
B. OUTPUT - an estimate of the annual nitrogen and phosphorus
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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PERCENT RETENTION - the percentage of incoming nitrogen or phospho-
rus retained in the lake annually:
( Input load-output load 100%’
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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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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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
NAME - BEAVER RESERVOIa (MESOTROPHIC)
COUNTY - BENTON. CAkROLL • WASHINGTON
STORET NO. - 0501 WORKING PAPER NO. 480. NTIS ACCESSION NO. P8—268 3621*8
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (SQ 1 (M) (METERS) (CMS) (YEARS)
IMPOUNDMENT 3081.30 114.20 17.8 42.450 1.5
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/LI INORG N(MG/LI TOTAL N(MG/L)
49. 94. 2.1 0.022 0.006 0 .33 0 0.610
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALUAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLIN6 TIME
(06/LI (MG/L——QRY WT)
3.9 0.1 — 3.6 ( 2) ( 4/ 5/14) P ( 6/18/14) P ( 8/30/14) P
SUMMARY OF PHYTOPLANKTON DATA
4/ 5/14 8/30/74 10/ 9/74
GENERA COUNT GENERA COUNt GENERA COUNT
CRYPTOMONAS 415 LYNGBYA 549 CENTRIC DIATOM 172
MELOSIRA 412 SYNEDRA 549 MELOSIRA 172
CHROOMONAS 380 CHROOMONAS 335 SKELETONEMA 103
STEPHANODISCUS 190 NITZSCHIA 335 CRYPTOMONAS 69
DACTYLOCOCCOPSIS 9S MELOSIRA 244 TETRAEDRON 69
OTHER 128 OTHER 913 OTHER 137
TOTAL 1680 TOTAL 2925 TOTAL 722
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) (I (G/YR) (KG/YR)
PHOSPHORUS 45860. ‘•••••••“ 10. 36140. 82010.
NITROGEN 159185. °••“•••• 385. 1448335. 1608505.
S. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS 18580. 71. 0.12
NITROGEN 111018U. 31. 14.1
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 1 (M) (Mb/LI (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
WHITE RIVER 14.750 1036.0 0.046 0.695 10.’ 428.’
WAR EAGLE CREEK 10.880 802.9 0.038 1.140 15. 487.
WHITENER BRANCH 0.520 39.9 0.031 1.800 11. 1042.
BRUsH CREEK 0.680 51.8 0.023 1.166 9. bOl.
RICHL*ND CREEK 4.210 318.6 0.027 0.812 11. 356.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/LI (MG/L)
BIG CLIFTY CREEK 0.021 0.677
DRY CREEK 0.038 1.243
PRAIRIE CREEK 0.021 2.147
* ESTIMATED

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
NAME — GULL SHOALS RESERVOIR (MESOTPOPI IC)
COUNTY — BAXTER. BOONE. MARION, AR; TANEY. OZARK. MO
STOWET NO. — 0504 WORKING PAPER NO. 480, NTIS ACCESSION rio. P8—268 362/AB
I. MO PHQM TRy
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1CM) (SO 1 (M) (METERS) (CR5) (DAYS)
IMPOUNDMENT 15672.10 183.89 20.4 165.040 259.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L CONDUCTIVITY(UMHOS (METERS) TOTAL P(M6/L) ORTHO P(MG/L) INQRG N(M6/L) TOTAL NIMG/L)
131. 223. 3.4 0.015 0.004 0.380 0.530
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UGh) (MG/I——DRY VT)
3.9 0.1 ( 4/ 6/74) P C 6/20/74) P C 9/ 4f74) P (10/15/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/ 6/74 6/20/74 9/ 4/74 10/15/14
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 680 FRAGILARIA 927 CHROOMONAS 181 CHROOMONAS 252
CHROOMONAS 375 CHROOMONAS 232 MOUGEOTIA 109 MELOSIRA 189
STEPPIANODISCUS 357 CRYPTOMONAS 165 CRYPTOMONAS 72 CRYPTOMONAS 126
CRYPTOMONAS 285 APHANIZOMENON 132 ANABAENA 36 FRAGILARIA 126
SYNEDRA 210 APHANOTHECE 66 APHANIZOMENON 36 TETRAEDRON 94
OTHER 285 OTHER 166 OTHER 36 OTHER 125
TOTAL 2192 TOTAL 1688 TOTAL 470 TOTAL 912
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOUwCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR (KG/YR)
PHOSPHORUS 1475. 35. 101670. 103180.
NITROGEN 4420. *QQ*..QQ*. 1225. 6945940, 6951585.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING PATE
(KG/YR) RETENTION (6/SO M/YR)
PHOSPHORUS 64915. 37. 0.56
NITROGEN 3777390. ‘ .6. 37.8
V. NONPOINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CR5) (SQ 1(M) (MG/I) (MG/I) (KG/SQ K 14/VR) (KG/SQ KM/YR)
EAST SUGAR LOAF CREEK 0.710 77.2 0.010 0.451 3. 133.
W)5T SUGAR LOAF CREEK 0.640 68.9 0.010 0.586 3. 175.
BEAR CREEK 3.230 344.5 0.015 0.546 3. 178.
BEE CREEK 0.690 76.1 0.009 0.246 3. 70.
LAKE TANEYCUMO — HITF R. 123.520 11297.6 0.017 0.792 8. 535.
SWAN CREEK 4.970 440.3 0.008 0.532 3. 190.
BEAVER CREEK 8.200 924.6 0.010 0.596 1. 161.
BIG CI1EFI( 1.070 113.4 0.015 0.587 4. 180.
GULLY SPRING CREEK 0.240 29.8 0.011 0.487 3. 123.
BARREN FORK 1.000 111.4 0.010 0.440 3. 133.
TURKEY CREEK 0.870 93.8 O.O1 0.749 4. 03.
NORTH FORK WHITE RIvER 1.600 161.4 0.0)2 0.714 3. 211.
POND FORK 83.700 0.8 0.011 0.760 342. 25546.

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VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGEO STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
IMG/L) (MG/L)
MOCCASIN CREEK 0.013 0.377
JIMMIE CHEEK 0.009 0.385
CANE CREEK 0.016 0.819
SHOAL CREEK 0.013 0.524
BLUE CREEK 0.013 0.868
DESHIELOS CREEK 0.017 0.726

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COMPENDIUM OF NATIONAL EUTROPHICATiON SURVEY LAKES IN ARKANSAS
NAME — TABLE ROCK RESERVOIR (MESOTROPHIC)
COUNTY — ØOONE. CARROLL. AR; BARRY, TANEY. MO
STORET ND. - 0515 WORKING PAPER NO. 480, NTIS ACCESSiON NO. P8—268 362/AR
. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(50 1 (M) (SQ 1 (M) (METERS) (CMS) (DAYS )
IMPOUNDMENT 10411.80 174.42 19.1 114.800 330.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTPIO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
97. 175. 2.3 0.022 0.007 0.350 0.600
111. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
9.1 0.1 — 5.4 ( 2) I 4/ 5/74) ( 6/19/74) P ( 9/ 4/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/ 5/14 6/19/74 9/ 4/74 10/11/74
GENE WA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 992 CHROOMONAS 264 ACHNANTHES 17906 ACHNANTHES 13893
FRAGILARIA 771 MOUGEOTIA 231 RAPHIDIOPSIS 1601 DACTYLOCOCCOPSIS 1393
STEPHANODISCUS 661 TETRAEORON 231 CENTRIC DIATOM 679 TETRAEDRON 503
CENTPIC DIATOM 251 CRYPTOMONAS 19$ PENNATE DIATOMS 582 Cu4YPTOMONAS 232
CHROOMONAS 220 ANKISTRODESMUS 132 CHROOMONAS 338 CHROOMONAS 193
OTHER 405 OTHER 530 OTHER 1215 OTHER 427
TOTAL 3306 TOTAL 1586 TOTAL 22321 TOTAL 16641 t
IV. NUTRIENT LOADING CHAPACTERISTICS(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 214095. 35. 45290. 259420.
NITR OGFN 504120. 1285. 4360855. 4866260.
s. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 66555. 74. 1.49
NITROGEN 6008260. LOSS 27.9
V. NON-POINT—SO URCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ 1 (M) (MG/L) (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
WHITE RIVER 42.360 3071.7 0.015 1.115 6. 458.
LITTLE INDIAN CREEK 0.270 49.2 0.012 1.618 2. 269.
BAILEY CREEK 0.190 36.3 0.011 2.034 2. 341.
JAMES RIVER 25.990 2556.3 0.235 3 .386 3. 308.
FLAT CREEK 5.770 140.7 0.023 2.602 4. 664.
ROCK CREEK 0.450 77.7 0.015 0.974 2. 176.
ROARING RIVER 0.990 155.4 0.025 2.016 3. 393.
BUTLER CREEK 0.350 62.2 0.011 0.954 2. 163.
KINGS RIVER 15.790 1377.9 0.067 1.362 4. 502.
LONG CREEK 3.220 440.3 0.025 1.657 3 •0 308.
YOKUM CREEK 1.050 165.8 0.018 2.360 4. 504.
* ESTIMATED

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN MISSOURI
NAME — LAKE TANEYCOMO (EUTROPHIC)
CUUNTY — TANEY
STORLI NO. - 2904 wORKING PAPER NO. 480, NTIS ACCESSION NO. P8-269 362/AS
I. MONPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 11297.60 12.22 5.8 123.810 1.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHDS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
96. 155. 2.0 0.023 0.007 0.530 0.720
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (HG/L——DRY WT)
9.8 0.1 — 1.0 ( 2) ( 4/10/74) P ( 6/19/14) P ( 8/30/74) P (10/ 4/14) P
SUMMARY OF PHYTOPLANKTON OATA
4/10/74 6/19/74 8/30/74 10/ 4/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODISCUS 625 CHROOMONAS 121 OINOSRYON 179 ACHNANTMES 2486
MELOSIRA 459 CYCLOTELLA 85 IcIRCHNERIELLA 179 CRYPTOMONAS 163
CRYPTOMONAS 125 DINOBRYON 85 MELOSIRA 135 CHROOMONAS 122
SYNEORA 125 NITZSCHIA 85 ACHNANTHES 134 MELOSIRA 82
DIATOMA 42 TETRAEDRON 85 CRYPTOMONAS 90 COSMARIUM 41
OTHER 83 OTHER 110 OTHER 178 OTnER 82
‘-a
TOTAL 1459 TOTAL 637 TOTAL 895 TOTAL 2976
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 5125. 10. 69010. 74145.
NITROGEN 9555. *0*4*000*0 415. 6234120. 6244090.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 81280. LOSS 6.01
NITROGEN 6038630. 3. 511.0
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/SQ KM/YR)
WHITE RIVER 1)6.980 10417.0 0.021 1.331 6. 577.
ROARK CREEK 0.580 s8.4 0.010 0.683 2. 126.
BULL CREEK 3.880 523.d 0.013 1.393 3. d93.
TURKEY CREEK 0.510 88.1 0.020 0.932 2. 174.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (M6/L)
BEE CREEK 0.017 0.923

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GENEP 1A
EUGLENA
C HR 0DM ON AS
NITZSCHIA
PHORMIDIUM
GYROSIGMA
OTHER
TOTAL
RHO SPHORUS
r i I IROGEN
H. OUTPUT
SUMMARY
3/26/74
POINT SOURCE
INDUSTRIAL (KG/YR)
0 0*0 0 00*0*
PERCENT
RETENTION
18.
22.
COUNT
475
238
238
59
60
59
1129
GENERA
NITZSCHIA
CRYPT OMONAS
CHL AMYDOMONAS
EUGLENA
DACTYLOCOCCOPSIS
OTHER
TOTAL
COUNT
1767
1556
1346
1136
1093
4627
11525
TOTAL LOADING
(KG/flU
112 13 .
390900.
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
NAME - BLACKEISH LAKE (HYPEREUTROPHIC)
CUUNrY - CRITTENDEN , ST. FRANCIS
STORET NO. — 0502 WORKING PAPER NO. 481, NTIS ACCESSION NO. Pd—268 281/AB
I. MDRPMOMETRY
SURFACE
AREA
MEAN DEPTH
TOTAL INFLOW
RETENTION
(SO KM)
(METERS)
(CMS)
(DAYS)
1.62
1.8
287.100
8.0
MEAN SECCHI DISC
(METERS)
MEDIAN
TOTAL P(MG/L)
MEDIAN
ORTHO P(MG/L)
MEDIAN
INORG N(MG/L)
MEDIAN
TOTAL N(MG/L)
0.1
0.424
0.090
1.470
2.425
LIMITING NUTRIENT AT SAMPLING TIME
3/26/74) P AND N ( 6/ 4/74) P
10/16/74
LAKE TYPE DRAINAGE AREA
(SO KM)
NATURAL 288.80
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY (UMHOS)
33. 88.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WT)
19.8 11.9 — 28.4 ( 2)
OF PHYTOPLANKTON DATA
6/ 4/74
COUNT GENERA
116 CRYPTDMONAS
93 FLAGELLATES
93 TRACHELOMONAS
46 EUGLENA
23 LEPOCINCLIS
li i OTHER
488 TOTAL
IV. NUTR iENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KG/YR)
0 0000 00000
0** *0*0* 0*
OUTLET(S)
(KG/YR)
PHOSPHORUS 92130.
NITROGEN 303920.
V. NON—POINT—SOURCE rJUTRIENI EXPORT
STREAM NAME MEAN FLOW
(CMS)
UNNAMED STREAM 3.650
DITCH #1 0.SAO
(10/16/741 N
POINT SOURCE
SEPTIC tANKS (KG/YR)
5.
275.
NON—POINT SOURCE
(KG/YR)
112130.
390625.
LAKE SURFACE AREA LOADING RATE
(GISt) M/YR)
69.22
241.3
DRAINAGE AREA
(SQ KM)
247.3
37.0
MEAN tOTAL P
(MG/ U
0.892
0.936
MEAN TOTAL N
(MG/L)
3.073
2.696
TOTAL P EXPORT
(KG/SQ KM/YR)
384.
430.
TOTAL N EXPORT
(KG/SQ KM/YR I
1376.
in ’.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
NAME — BLUE MOUNTAIN LAKE (EUTROPHIC)
COUNTY — LOGAN. YELL
STORET NO. — 0503 WORKING PAPER NO. 482, NTIS ACCESSION NO. P8—268 314/AG
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(50 4CM) (50 4 CM) (METERS) (CP4S) (DAYS)
IMPUUNDMENT 1263.90 11.74 2.6 14.610 25.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
20. 85. 0.4 0.058 ( 1.010 0.160 0.480
III. BIOLOG iCAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
9.0 0.8 — 1.9 4 2) ( 3/28/74) N ( 6/ 6/74) P (10/18/74) P
SUMMARY OF PMYTOPLANKTON DATA
3/28/7 . 6/ 6/74 10/18/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 2302 MELOSIRA 3828 MELOSIRA 1830
CHROOMONAS 1069 EUGLENA 58 STEPHANODISCUS 790
DACTYLOCOCCOPSIS 781 NITZSCHIA 58 CHLAMYDOMONAS 333
CRYPTCJMONAS 247 ANABAENA 29 DACTYLOCOCCOPSIS 166
ASTERIONELLA 164 CRUCIGENIA 29 OSCILLATORIA 166
OTr IER 288 OTHER 29 OTHER 314
I -
TOTAL 4851 TOTAL 4031 TOTAL 3659
IV. NUTRIENT LOAOIN6 CHARACTERISTICSLAICE
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 SO bS. 5. 11780. 16850.
NITROGEN 4d95. 250. 419955. 424500.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 31255. LOSS 1.44
NITROGEN 343495. 19. 36.2
V. NON-POINT—SOURCE NUTRIENI EXPORT
STREAM NAME MEAN FLOM DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ 4 CM) (MG/LI (MG/L I 1KG/SO KM/YR) (KG/Si) KM/YR)
PETIT JEAN RIVER 1o.o80 898.7 0.047 0.933 10. 383.
DkY CREEK 0.390 33.7 0.020 0.5 .8 7. 213.
SUGAR CREEK 1.770 151.3 0.019 0.461 7. 184.
VI. MEAN NUTRIENT CONCENTRATIONS iN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/LI (MG/L)
UNNAMED STREAM C l 0.022 0 .644
CEDAR CREEK 0.028 0.913

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COMPENDIUM OF NATIONAL EUTROPMICATION SURVEY LAKES IN ARKANSAS
NAME - LAKE CATHERINE (EUTROPHIC)
COUNTY — GARLAND , HOT SPRING
STORET NO. - 0505 WORKING PAPER NO. 483, NTIS ACCESS1ON NO. P8—266 776/AS
1. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 3926.40 7.85 5.5 65.660 8.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKAL INITY(MG/L) CONDUCTIVITY(UMHOS) (METE RS) TUTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
17. 62. 1.2 0.029 0.006 0.180 0.430
III. SIULOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL 6AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLINU TIME
(UG/L) (MG/L—ORY WT)
14.0 0.7 — 1.0 ( 2) ( 3/26/74) P ( 6/ 5/74) P (10/15/74) P
SUMMARY OF PHYTOPLANKTON DATA
3/26/74 6/ 5/74 10/1 5/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 2212 SKELETONEMA 3885 SCENEDESMUS 517
SKELETONEMA 1386 CHROOMONAS 226 PENNATE DIATOMS 487
CYCLOTELLA 501 MELOSIRA 181 NITZSCHIA 457
FLAGELLATES 462 CENTRIC DIATOM 181 MELOSIRA 244
CHROOMONAS 424 PENNATE DIATOMS 158 DACTYLOCOCCOPSIS 213
OTHER 1309 OTHER 541 OTHER 640
I - ’
TOTAL 6354 TOTAL 5172 TOTAL 2558
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) (K(,/YR) (KG/YR)
PHOSPHORUS 42410. 15. 36410. 78835.
NITROGEN 121190. 620. 1060970. 1188180.
s. OU IPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS 49340. 37. 10.04
NITROGEN 1735280. LOSS 151.4
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) (SQ KM) (MG/L) (MG/L) (KG/SQ KP4/YR) (KG/SQ KM/YR)
OUCHITA RIVER 62.530 3732.2 0.021 0.681 9. 270.
GULPHA CREEK 2.100 129.5 0.157 0.674 12.* 237.
TIGRE CREEK 0.510 32.1 0.O2S 0.446 12. t37.
VI. MEAN NUTRIENT CO ’ CENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(M6/L) (MG/L)
COOPER CREEK 0.014 0.dS S
• ESTIMATED

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COMPENDIUM (IF NATIONAL EUTPOPrIICATION SURVEY LAKES iN ARKANSAS
NAME — HAMILTON LAKE (FUIROPt IC)
COUNTY — GARLAND
srowtr NO. — 0 5 )0 WORKING PAPER NO. 483. NTIS ACCESSION NO. P 8- 266 776/AS
I. MORPHOMETRy
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (50 1 (M) (METERS) (CMS) (DAYS)
IMPOUNDMENT 3732.20 24.28 9.7 62.700 43.0
11. PHYSICAL AND CHEMICAL CHARACTFPISTICS
MEDTAN MEOIAN MEAN SECCHI DISC I4EOIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITflUMHOS) (M ETEr S ) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(M6/L1
LA. 50. I.n 0.024 O.0u6 0.130 0.420
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——ORY WI)
10.9 0.4 — 10.2 4 3) 1 3/21/74) N I 6/ 5/74) P (10/15/14) P
SUMMARY OF PHYTOPLANKTON DATA
3/27/74 6/ 5/74 10/15/74
GENERA COUNT GENERA COUNT GENERA COUNT
CENTRIC DIATOM 2543 IYNGSYA Sd DACTYLOCOCCOPSIS 1976
MELOSIRA 831 MERrSMOPEDIA 302 STEPHANODISCUS 553
NITZSCHIA 294 MELOSIHA no CRYPTUMONAS 435
ANKISTRODFSMUS 293 DACTYLOCOCCOPSIS lAY SCENEDESMUS 318
CHYPTOMONA S 245 ANARAENA 188 LYNGBYA 231
OTHER 440 OTHFII 605 OTHER 2094
TOTAL 4646 TOTAL 2u38 TOTAL 5613
IV. NUTRIENT LOADING CHARACTEFIISTTCS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL IKG/YR) INDUSTRIAL IKO/YR) SEPTIC TANKS (KG/VP) I KG /YR) (KG/YR)
PHOSPHORUS 36190. 75 3s440. 71705.
NITROGEN 108165. 2845. 798955. 909965.
H. OUTPUT
OUTLET(SI PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION IG/Su M/YR)
PHDSPHORL)S 34035. 53. 2.95
NITRUGEN 1008320. LOSS 37.5
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW ‘)PAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
( nfl) (SO 1 (M) (MG/L) (MG/L) 1KG/SO KM/YR) KG/SQ KM/TM)
OACI.ITTA RIVER 45.160 2Af i.9 0.011 0.442 8. 197.
LITTLE MA7A}1N CREtic 2.320 1l5.ü 0.032 0.053 19. 422.
MAZARN CPFE1( 4.1 0 204.9 0.018 0.281 1 1. 188.
HALLMANS CREEK 1.230 61.6 0.019 0.231 12. 159.
(,LAZYPEAIJ CPEEK Hi 1.780 88.6 0.032 0.312 15. 227.
BULL SAIDU 1 .040 52.3 0.015 0.353 9. ISO.
V i. MEAN NUTRIFr iT C0”ICENTPATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(M (.,/L1 (Mb/L I
MT. CARMEL CREEK 0. 027 0.342
FOLiRCHE A LOUPE CREEK 0. 0 12 iJ.43?
GLAZYPEAIJ CREEK ‘12 O.0 ?2 0.d SM

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HOT SPRINGS CREEK I%1 * fl.9 ,9 9.141
HOT SP 1NC,S CREE ( I 0.092
* RELOw POINT 5OIJkCE.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
NAME — OUACHITA LAKE (MESOTROPHIC)
COUNTY — GARLAND. MONTGOMERY
STORET NO. — 0514 WORKING PAPER NO. 483, NTIS ACCESSION NO. P8—266 176/AR
I. MORPHQM TR
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(50 KM) (SQ KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 2861.90 162.28 16.3 43.600 1.9
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METEt S) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/LI TOTAL N(MG/L)
22. 69. 2.8 0.015 0.006 0.155 0,335
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUrRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
4.3 0.1 — 0.6 ( 2) ( 3/25/74) P AND N ( 6/ 6/74) P (10/17/74) P
SUMMARY UF PHYTOPLANKTON DATA
3/25/74 6/ 6/74 10/17/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHYPTOMONAS 110 FRAGILARIA 797 LYNGBYA 266
CHROOMONAS 73 MELO5IRA 128 CHROOMONAS 233
CENTRIC DIATOM 37 CHROOMONAS 693 APHANIZOMENON 200
TABELLARIA 520 DACTYLOCOCCOPSIS 200
ASTERIONELLA 104 ANACYSTIS(MICROCYSTIS) 167
OTHER 0 OTHER 173 OTHER 633
TOTAL 220 TOTAL 3015 TOTAL 1699
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) IKG/YR)
PHOSPHORUS 590. 10. 21470. 28070.
NITROGFN 1535. 430. 734865. 736830.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING HATE
(KG/YR ) RETENTION (6/SQ M/YR)
PHOSPHORUS 23445. 16. 0.17
NITROGEN 565150. 23. 4.5
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/U (KG/SQ KM/YR) (KG/SQ KM/YR)
OUACHITA RIVER 22.680 1248.4 0.018 0.433 11. 285.
WALNUT CHEEK 0.270 22.4 0.026 0.248 10. 88.
TWIN CREEK 0.340 27.5 0.018 0.345 7. 101.
SOUTH FORK OUACHITA R. 2.550 165.8 0.019 0.373 9. 183.
MUDDY CREEK 1.320 105.4 0.022 0.467 8. 173.
IRONS FORK 2.100 167.8 0.024 0.412 9. 167.
NORTH FORK 1.140 138.8 0.017 0.356 6. 148.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/U) (M(,/L)
DALEY CREEK 0.018 0.720
BIG SLAKELY CREEK 0.020 0.266

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LITTLE BLAKELY C. EEK O.O2 0.387

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III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL(,AL ASSAY CONTROL YIELD
(UG/L) CMG/L——DRY WT)
13.7 8.5 — 13.8 ( 2)
SUMMARY OF PHYTOPLANKTON DATA
3/26/74 6/ 5/74
GENERA COUNT GENE WA
STEPHANODISCUS 1904 MERISMOPEDIA
MELOSIRA 368 MELOSIRA
CRYPTOMDNAS 246 CRYPTOMONAS
ACTINASTRUM 154 OSCILLATORIA
DACTYLOCOCCOPSIS 92 CYCLOTELLA
OTHER 92 OTHER
TOTAL 2856 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KG/YR)
PHOSPHORUS
NITWObEN
8. OUTPUT
OUTLET (5)
(KG/YR)
PHOSPHORUS 115135.
NITROGEN 100900.
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(CMS)
CONNERLY BAYOU 12.210
VI. MEAN NUT 4IENT CONCENTRATIONS IN UNGAGED
STREAM NAME MEAN TOTAL P
(MG/L)
UNNAMED CREEK BI 0.513
FERRY BAYOU 0.408
LAKE SURFACE AREA LOADING RATE
(G/SQ M/YR)
6.64
40.7
NAME — CMICOT LAKE
COUNTY — CMICOT
STORET NO. — 05 06
I. MORPHOMETRY
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
(EUTROPHIC)
WORKING PAPER ND. 484. NTIS ACCESSION NO. P9—268 363/AS
LAKE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 1046.40
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCTIVITY(UMHOS)
85. 189.
SURFACE AREA
(SQ 1 cM)
21.45
MEAN DEPTH
(METERS)
2.7
TOTAL INFLOW
(CMS)
13.620
RETENTION TIME
(DAYS)
49.0
MFAN SECCHI DISC
(METERS)
0.4
MEDIAN
TOTAL P(MG/L)
0. 162
MEDIAN
MEDIAN
MEDIAN
ORTHO P(MG/L)
INORG
NU4G/L)
TOTAL
N(MG/L)
0.089
1.200
LIMITING NUTRIENT AT SAMPLING TIME
3/26/74) N ( 6/ 5/14) P (10/16/74) N
10/16/74
COUNT
GENERA
COUNT
566
CYANOPHYTON FILAMENTS
2281
536
MELOSIRA
1313
447
FLAGELLATES
726
209
STEPHANODISCUS
726
119
SYNEDRA
311
1072
OTHER
1383
3009
TOTAL
6740
POINT SOURCE
INDUSTRIAL (KG/YR)
•0o00*0 o
POINT SOURCE
SEPTIC TANKS (KG/YR)
5.
250.
PERCENT
RETENT ION
19.
20.
NON-POINT SOURCE
(KG/YR)
142530.
872935.
TOTAL LOADING
(KG/YR)
1 4d535.
873185.
MEAN TOTAL P
(Mu/L)
0.44 1
DRAINAGE AREA
(50 KM)
932.4
STREAMS
MEAN TOTAL N
(MG/L)
2.036
1 • 168
MEAN TOTAL N
(MG/L)
2.043
TOTAL P EXPORT TOTAL N EXPORT
(KG/SO KM/YR) (KG/Sw KM/YRI
139. 829.

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III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——ORY WI)
12.3 0.1 — 0.4 ( 2)
SUMMARY OF PHYTOPLANKTON DATA
3/25/74 6/ 3/74
GENERA COUNT GENERA
ANKISTRODESMUS 287 TABELLARIA
O INO I JRYON 223 MELOSIRA
MELOSIRA 191 CHROOMONAS
ASTERIONELLA 159 APHANIZOMENON
TABELLARIA 159 DSCILLATOPIA
OTHER 606 OTHER
TOTAL 1625 TOTAL
IV. NUTRIENT LOADING CHAPACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICiPAL (KG/YR)
PHOSPHORUS 1315.
NITROGEN 4120.
3. OUTPUT
OUTLET(S)
(KG/YR)
PHOSPHORUS 10270.
NITROGEN 268460.
V. NON—POINT-SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(C MS)
CADDO RIVER 13.880
WHITENER CREEK 0 .260
HIG HILL CREEK 0.270
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/LI (MG/LI
LONG CREEK 0.022 0.238
BRUSHY CREEK 0.020 0.414
PHILIPPI CREEK 0.015 0.364
POINT CEDAR CREEK 0.022 0.245
LAKE SURFACE AREA LOADING RATE
(G/SO M/YR)
0 • 22
3.6
COMPENDIUM or NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
NAME — DEGRAY RESERVOIR (MESOTNOPHIC)
COUNTY - CLARK. HOT SPRING
STORET NO. — 0507 WORKING PAPER NO. 485. NTIS ACCESSION NO. P8—268 394/AR
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA
(50 KM
IMPOUNDMENT 1173.30
II. PHYSICAL ANO CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/LI CONDUCT IVITY(UMHOS)
24. 49.
SURFACE AREA
(S Q KM)
MEAN DEPTH
(METERS)
TOTAL INFLOW
(CMS)
RETENTION TIME
(DAYS)
MEAN SECCHL DISC
(METERS)
2.1
MEDIAN
TOTAL P(MG/L)
0.019
MEDIAN
ORTHO P1MG/LI
0.004
MEDIAN
INORG N(MG/L)
0.130
MEO IAN
TOTAL N(MG/L)
0.420
LIMITING NUTRIENT AT SAMPLING TIME
3/25/74) P AND N 1 6/ 3/74) P (10/16/74) P
10/16/74
COUNT
GENERA
COUNT
6083
NITZSCHIA
238
1182
ANKISTRODESMUS
214
634
CMROOMONAS
214
317
MOUGEOTIA
167
317
RAPHIDIOPSIS
143
663
OTHER
1002
9196
TOTAL
1978
POINT SOURCE
INDUSTRIAL (KG/YR)
0000000 00 0
* 0 0*0* *0*
PERCENT
RE TENT ION
13.
LOSS
POINT
SOURCE
NON—POINT SOURCE TOTAL LOADING
SEPTIC
TANKS (KG/YR) (KG/YR)
30. 10345.
(KG/YR)
11750.
DRAINAGE AREA
(S i ) 1 (M)
784.8
19.7
18.1
MEAN
TOTAL P
MEAN
TOTAL N
TOTAL P
EXPORT
TOTAL
N EXPORT
(M6/L)
(M b/LI
(KG/SQ
KM/YR)
(KG/SQ KM/YR)
0.021
0.231
9.
128.
0.013
0.149
5.
68.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
NAME — LAKE ERLING (EUTPOPHIC)
CUUNTY — LAFAYETTE
STORET NO. — 0508 WORKING PAPER NO. 486. NTIS ACCESSION NO. P8—268 395/AS
I. MORPHUMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ KM) (METERS) (CMS) (DAYS )
IMPOUNDMENT 1023.00 28.33 2.1 10.340 67.0
11. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(Mb/L) ORTHO P(Mb/L) INORG N(M6/L) TOTAL N(MG/L)
10. 64. 1.1 0.054 0.020 0.120 0.665
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
13.4 3.2 ( 3/25/14) N ( 6/ 3/14) p AND N (10/17/14) N
SUMMARY UF PHYTDPLANKTON DATA
3/25/74 6/ 3/14 10/11/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 1843 MELOSIRA 491 MELDSIRA 1371
CRYPTOMONAS 282 DACTYLOCDCCOPSIS 338 CRYPTOMONAS 190
DACTYLOCOCCOPSIS 154 CHROOMONAS 215 DOCYSTIS 152
CHROOMONAS 128 CRYPTOMONAS 31 DACTYLOCOCCOPSIS 76
ANKISTRODESMUS 51 ANACYSTIS(MICROC’rSTIS) 31 DICTYOSPHAERIUM 38
OTHER 435 OTHER 60 OTHER 153
IW
TOTAL 2893 TOTAL 1166 TOTAL 1980
IV. NUTRIENT LOADING CHAPACTERISTICS(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/YRI
PHOSPHORUS 2615. *06 *0 *00 * 21630. 24245.
NITROGEN 1840. 300735. 308575.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR ) RETENTION (6/SQ M/YR)
PHOSPHORUS 16095. 34. 0.86
NITROGEN 233290. 24. 10.9
V. NON—POINT—SOURCE NUTRIENT EXPDRT
STREAM NAME MEAN FLOW flRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CR5) (SQ KM) (MG/L) (MG/L) (KG/SQ KM/YR) (KG/SuJ KM/YR)
UODCAU CREEK 1.960 187.4 0.091 0.9 04 26. 305.
WALKER CREEK 0.470 46.9 0.096 0.803 5. 145.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (M b/ U
HEIRS CREEK 0.099 1.067

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
NAME — GREER’S FERRY RESERVOIR (MESOTROPHIC)
COUNTY — VAN BUpI EN, CLERURNE
STORET NO. — 0516 WORKING PAPER NO. 487, NTIS ACCESSION NO. PS—266 lil/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ 1 (M) (50 KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 2986.30 163.90 21.4 49.660 820.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDTAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(u JMHOS) (METERS) TOTAL P(MG/L) ORTHO PMG/L) INORG N(MG/L) TOTAL N(MG/L)
1 8. 38. 3.3 0.012 0.004 0.140 0.320
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CMLOPOPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLINb TIME
(Ur,/L) MG/L——DRY WT)
1.8 0.1 — 0.d ( 2) ( 3/27/74) N ( 6/ 6/74) P ( 9/ 3/74) P (10/16/74) P
SUMMARY OF PHYTOPLANKTON DATA
3/27/14 (‘I 6/74 9/ 3/74 10/16/74
GENERA COUNT GENE WA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 500 TAHELLARIA 1579 LYNGHYA 3098 LYNGBYA 678
MELOSIRA 500 MELOSIRA 486 CHROUMONAS 313 TABELLARIA 601
CRYPTOMONAS 350 CHROOMONAS 202 ANACYSTIS(MICROCYSTIS) 219 MELUSIRA 290
SKELETONEMA 325 CRYPTOMONAS 202 CRYPTOMONAS 188 DACTYLOCOCCOPSIS 58
FLAGELLATFS 225 FPAGILARIA 121 FLAGELLATES 125 CENTRIC DIATOM 39
OTHER 573 OTHER 326 OTHER 469 OTHER 136
TOTAL £473 TOTAL 2916 TOTAL 4412 TOTAL 1802
IV. NUTRIENT LOADING CHARACTERISTTCS(LAPcE)
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) (K6/YR)
PHOSPHORUS 4020. 25. 45355. 39400.
NITROGEN 21285. 915. 904950. 927210.
B. OUTPUT
OUTLET(S) PEQCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 20525. 48. 0.24
NITROGEN 1227040. LOSS 5.7
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW i)PAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (M( ,/L) (MG/L) (KG/SO KM/flU ( ( (b/SI) KM/YR)
MIDDLE FORK LITTLE RED R 11.540 800.3 0.030 0.526 15. £92.
SOUTH FORK LITTLE RED P. h.320 375.5 0.026 0.628 13. 353.
AI4CHEY CREEK 4.990 305.6 0.019 0.3d5 9. 206.
PEE DEE CREEK 1.310 85.0 0.021 0.453 10. 238.
VI. MFAt¼ NUTRIENT CONCENTRATIONS TN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
BEECH CRFFK D.023 0.749
UNNAMED STREAM Fl * 0.330 4.302
* BELOw POTNI SOiJRCt.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
NAME — GRAND LAKE (EUTROPHIC)
COUNTY — CHICOT
STORET NO. - 0509 WORKING PAPER NO. 488, NTIS ACCESSION NO. P8-266 788/AS
I. MORP IIOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SU KM) (METE RS ) (CMS) (YEARS )
NATURAL 5.67 2. 1
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY IUMHOS (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
9. 160. 0.5 0.101 0.021 0.090 1.220
III. BIOLOGICAL CHARAC1ERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WI)
62.9 3.R ( 3/26/74) N 1 6/ 4/74) N (10/16/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/26 174 6/ 4/74 10/16/74
GENERA COUNT GENERA COUNT GENERA COUNT
NITZSCHIA 4635 DACTYLOCOCCOPSIS 52408 OACTYLOCOCCOPSIS 3523
STEPHANODISCUS 3813 STEPHANODISCUS 23206 OSCILLATONIA 3030
FLAGELLATES d467 MERISMO PEDIA 16165 CENTRIC DIATOM 2924
CHLAMYDOMONAS 2093 ANACYSTIS(MICROCY5TIS) 11472 ANACYSTIS(MICROCYSTIS) 2537
MELOSIRA 1794 LYNGSYA 10429 MERISMOPEO IA 2008
OTHER 8298 OTHER 39112 OTHER 3171
TOTAL 23100 TOTAL 152792 TOTAL 17193
IV. NUTRIENT LOADING CHARACIERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/VP) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/VP) (KG/VP)
PHOSPHORUS •*oaoooo*e
NITROGEN ***000*OQØ 06*04044* 0*4*4 0*949 *t••••oee. 90990*40*0
8. OUTPUT
OUTLtT(5) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS *04444*4*0 *9499 *494*0 900*
NI TROGEN *00*40*0*9 0*9*4 *449*494 9*
*44* LAKE SAMPLING ONLY 0 4 4 4

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COMPENDIUM OF NATIONAL EUTROP hICATION SURVEY LAKtTS IN ARKANSAS
NAMF — MILLW000 RESERVOIR (FUTROPHIC)
COUNTY — I-IEMPSTEAO. HOWARD. LTTTLE RIVER, SEVIER
STO,*T NO. - nS l l WORKING PAPER NO. 489. NTIS ACCESSION NO. P8—266 189/AU
I. MORPHOMETPY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (So KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 10733.00 118.11 2.2 165 . 190 18.0
I I. PHYSICAL AND CHEMICAL CHARACTFRISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEOIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS (METERS) TOTAL PMG/L ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
20. 66. 0.8 0.040 0.008 0.120 0.490
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
Ic.o 0.1 ( 3/25/14) N C 6/ 3/74) P (10/11/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/25/74 6/ 3/74 10/17/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 698 MELOSIRA 2822 CENTRIC DIATOM 438
MELOSIRA 698 ANARAENA 541 MELOSIRA 341
CA RTERIA 220 DINOBRYON 502 CHROOI4ONAS 195
CRYPTOMONAS 220 FLAGELLATES 464 DACTYLOCOCCOPSIS 97
FLAGELLATFS 220 DACTYLOCOCCOPSIS 425 CRYPTOMONAS 49
OTHER 884 OTMFR 2551 OTHER 146
TOTAL 2940 TOTAL 1305 TOTAL 1266
IV. NUTRIENT LOADING CHARACTERISTTCS(LAKE)
A. INPUT
POINt SOURCE h OINT SOURCt POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KO/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/V P) (KG/VP)
PHOSPHOR uS 17590. *4*0 *940* 244785. 262315.
NITROGEN 68420. 4*4*0*4*0* * 4*4*00*0* 3539935. 360d35 5.
. UUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/VP) RETENTION (G/SQ M/YR)
PHOSPHORUS 279845. LOSS 2.22
NITROGEN 2406S4 . 33. 30.5
V. NON-POINT-SOURCE NUTI4IENT EXPORT
STREAM NAME MEAN FLOW ‘)RAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(VM S) (Sq KM) (MG/L) (M6/L) (KG/SO KM/VU) (KG/Sw KM/VP)
LITTLE RIVER 107.060 6925.7 0.049 0.670 23. 336.
FLAT CREFK 2 . 33 1) is9. 0.Ool 0.817 23. 385.
COSSATOT RIVER 16. 1 150 1129.4 0.036 0.481 16. 233.
SALINE RIVER 9.080 673.4 0.067 0.541 29. 264.
ALUE tiAVOtI 0.R10 60.8 0.046 0.493 19. 241.
DILLAWL ) CPEFK 0.670 44.5 0.064 0.825 29. 408.
COLEMAN r.?FFK 0.100 43.i 0.048 0.103 20. 372.
VT. ‘lEAN NUTRIFNI CONCENTr 1ATIONS IN (JNGA1JLU STREAMS
STRE&M NAMF MEAN TOTAL ‘ MFAN TOTAL N
(M(./L) (MG/ l i
CYPRESS COFEK 0.027 0. 550
PIUPWICANF CREEK 0.034 0.598

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CANEY CKFFK 0.056 O.4b2
COOL CREEK 0.031 0.809
a ior,r CPFFK 0.047 0.542
SAND CREFK 0.US5 0.559
OCi( CPEFK 0.043 0.649
MINE CREEK • 0.144 L. 1S
* AELOW POINT SOURCE.
( C

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III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DPY WT)
15.8 1.0 — 2.3 C 2)
SUMMARY OF PHYTOPLANKTON DATA
3/27/74 6/ 7/74
GENERA COUNT GENERA
FLAGELLATES 1933 MELOSIRA
ANKISTHODESMUS 424 CHROOMONAS
CRYPTOMONAS 424 CRYPTOMONAS
CENTRIC DIAT )M 94 CYCLOTELLA
OSCILLATORIA 94 DACTYLOCOCCOPSIS
OTHER 237 OTHER
TOTAL 3206 TOTAL
IV. NUTRIENT LOADING CHARACTEPISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE
MUNICIPAL (KG/YP) INDUSTRIAL (KG/YR)
• 0 *. *0 0 * *0
*00*0*0*0* *0*0*0*00*
PHOSPHORUS
NITROGEN
S. OUTPUT
OUTLET(S)
(KG/YR)
PHOSPHORUS 30565.
NITROGEN 460910.
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(CMS)
FOURCHE LA FAVE RIVER 17.590
bRUSH CREEK 0.6 1 W
HOGAN CREEK 0.360
VI. MEAN NUTRIENT CONCENTRATIUNS IN UNGAGED
STREAM NAME MEAN TOTAL P
(MG/L)
PORTER CREEK 0.040
WEST GAFFORD CREEK 0.017
EAST GAFFORD CREEK 0.025
LAKE SURFACE AREA LOADING RATE
(G/SO M/YR)
1 • 10
37.2
NAME — NIMROD LAKE
COUNTY — PERRY. YELL
STORET NO. — 0512
I. MORPHOMETRY
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
(MESO-EUTROPHIC)
WORKING PAPER NO. 490, NTIS ACCESSION NO. P8—266 779/AB
LAKE TYPE OR4INAGE AREA
(SO KM)
IMPOUNDMENT 1771.60
II. PHYSICAL ANC) CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY (UMMOS)
13. 42.
SURFACE AREA
(SO KM)
MEAN DEPTH
(METERS)
TOTAL INFLOW
(CMS)
RETENTION TIME
(DAYS)
MEAN SECCHI DISC
(METERS)
0.8
MEDIAN
TOTAL P(MG/L)
0.039
MEDIAN
ORTHO P(MG/L)
0.006
MEDIAN
IN0RG N(MG/L)
0.160
MED IAN
TOTAL N(MG/L)
0.435
LiMITING NUTRIENT AT SAMPLING TIME
3/27/74) N ( 6/ 7/74) P (10/18/74) P
10/18/74
COUNT
GENERA
COUNT
493
MELOSIRA
1417
99
ANACYSTIS(MICROCYSTIS)
486
49
DACTYLOCOCCOPSIS
445
49
CRYPTOMONAS
243
49
CYCLOTELLA
162
222
OTHER
851
961
TOTAL
3604
PERCENT
RE TENT ION
LOSS
15.
POINT
SOURCE
NON—POINT SOURCE TOTAL LOADING
SEPTIC
TANKS (KGIYP) (KG/YR)
15. 15965.
(KG/YR)
15980.
DRAINAGE AREA
MEAN
TOTAL P
MEAN
TOTAL N
TOTAL P EXPORT
TOTAL
N EXPORT
(SQ ( CM)
(MG/L)
(MG/L)
(KG/SO
KM/YR)
(KG/SW KM/YR)
1271.7
0.026
0.588
10.
328.
51.0
0.016
0.467
6.
194.
27.2
0.017
0.606
7.
255.
STREAMS
MEAN TOTAL
N
(M(,/L)
0.684
0. 73

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN ARKANSAS
NAME - NORFOLK LAKE (MESOTROPMIC)
COUNTY — BAXTER. FULTON, AR OZARK , MO
STORET NO. — 0513 WORKING PAPER NO. 491, NTIS ACCESSION NO. P8—268 397/AB
I. MORPHOMETRY
LAKE IYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ KM) (METERS) (CR5) (DAYS)
IMPOUNDMENT 4682.70 89.03 17.3 50.200 355.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIWITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO PCMG/L) INORG N(MG/L) TOTAL N(MG/L)
158. 256. 3.6 0.015 0.005 0.320 0.510
III. bIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
3.4 0.1 — 0.5 ( 3) ( 4/ 5/74) P ( 6/19/74) P ( 9/ 3/74) P (10/10/14) P
SUMMARY OF PHYTOPLANKTON DATA
4/ 5/74 6/19/74 9/ 3/74 10/10/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 555 FRAGILARIA 645 FRAGILARIA 805 ANACYSTISIMICROCYSTIS) 603
MELOSIRA 408 DINORRYON 609 NITZSCHIA 689 FLAGELLATES 362
STIPITOCOCCUS 148 CRYPTOMONAS 179 ANACYSTIS(MICROCYSTIS) 632 CRYPTOMONAS 322
CENTRIC DIATOM 14 CERATIUM 72 ACHNANTHES 402 DACTYLOCOCCOPSIS 241
CRYPTOMONAS 14 CYCLOTELLA 7d MELOSIRA 345 MOUGEOTIA 201
OTHER 149 OTHER 214 OTHER 1323 OTHER 1168
TOTAL 1409 TOTAL 1791 TOTAL 4196 TOTAL 2897 =
IV. NUTRIENT LOA OING CHARACTERISTICS(LAME)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCt NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INOUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 820. • 0 0°* 0°° 30. 20955. 21805.
NITROGEN 2465. 00000*0*0 1130. 1660745. 1664340.
B. OUTPUT
OUTLIT(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 27840. LOSS 0.24
NITROGEN 1442945. 13. 18.7
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) (SQ MM) (MG/L) (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
NORTH FORK WHITE RIVER 19.610 1460.8 0.015 1.104 6. 482.
HUTCH CREEK 0.230 22.8 0.012 0.610 4. 229.
PIGEON CREEK 0.2 40 23.1 0.012 0.656 4. 228.
EAST PIGEON CREEK 0.260 24.9 0.010 0.716 3. 230.
LICK CREEK 1.520 255.9 0.016 0.784 3.° 262.
PINE CREEK (CANEY CREEK) 0.780 106.4 0.011 0.789 2. 226.
B RYAN 1 CREEK 14.180 1349.4 0.011 0.796 4. 261.
BRIDGES CREFK 0.550 75.1 0.011 U, Bb O 2. 214.
BARREN CREEI( 0.280 26.9 0.013 1.010 4. 340.
BENNETTS BAYOU 1.830 174.8 0.010 1.0s2 3. 366.
BENNETTS RIVER 1.800 176.5 0.01 4 O.8 9 4. 371.
RIG CREEK 1 .420 136.2 0.013 0.813 3. 277.
BRUSHY CREEK 0.340 33.2 0.011 0.889 3. 302.

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VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGEO STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(M G/I) (MG/I)
LITTLE PIGEON CREEK 0.019 1.430
WALKER CREEK 0.016 0.900
ESTIMATED
S

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOWA
NAME — LAKE AH .JUA8I (FUTROPHIC)
COUNTY — WARREN
STORET NO. — 1901 WORKING PAPER NO. 494, NTIS ACCESSION NO. P8—258 249/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(50 KM) (50 (CM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 12.80 0.53 3.0 0.070 263.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P4MG/I) INORG N(MG/L1 TOTAL N(MG/L)
104. 187. 0.8 0.062 0.009 0.335 1.120
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——ORY WT)
8.6 9.0 ( 4/17/74) P ( 7/ 2/74) NO DATA ( 9/25/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/17/74 7/ 2/74 9/25/74
GENERA COUNT GENERA COUNT GENERA COUNT
SYNEDRA 415 TRACHELOMDNAS 627 OSCILLATORIA 768
CENTRIC DIATOM 277 ANABAENA 575 MELOSIRA 384
ASTERIONELLA 19$ CENTRIC DIATOM 314 APHANIZOMENON 154
APHANIZOMENON 158 ANACY5TIS(MICROCY5TI5) 105 TRACHELOMONAS 115
NITZSCHIA 119 SCHROEDERIA 105 ANABAENA 77
OTHER 118 OTHER 208 OTHER 153
C ,,
TOTAL 1345 TOTAL 1934 TOTAL 1651
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 0*00000*0* 00*0000*0* tO. 530. 540.
NITROGEN *00*00*00* 0*0*00*00* 390. 10965. 11355.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(K&/YR) RETENTION (G/SU M/YR)
PHOSPHORUS 180. 67. 1.02
NITROGEN 4290. 62. 21.4
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 ( CM) (MG/ U (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
UNNAMED STREAM 0.030 5.8 0.162 4.490 42. 845.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOWA
NAME — BIG CREEK RESERVOIR (EUTROPHIC)
COUNTY — POLK
STOIIET NO. — 1902 WORKING PAPER NO. 495. NTIS ACCESSION NO. P8—258 248/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SO KM) (METERS) (CM ) (DAYS)
IMPOUNDMENT 203.60 3.44 6.7 0.990 269.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MFAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITV(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
274. 448. 1.6 0.046 0.011 6.465 7.185
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMIT1NG NUTRIENT AT SAMPLING TIME
(UG/L) 1P46/L——DRY WT)
16.9 0.1 4/18/74) P ( 7/ 9/74) NO DATA ( 9/25/74) p
SUMMARY OF PHYTOPLANKTON DATA
4/18/74 7/ 9/74 9/25/74
(,ENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODISCUS 14887 ASTERIONELLA 595 MELOSIRA 1167
FLAGELLATES 665 STEPHANODISCUS 457 FRAGILARIA 257
ANKISTRODESMUS 2b0 FLAGELLATES 46 STEPHANODISCUS 40
CHLAMYDOMONAS 208 APHANIZOMENON 40
GYMNODINIUM 166 APHANOTHECE 40
OTHER 416 OTHFP 0 OTHER 117
TOTAL 16592 TOTAL 1098 TOTAL 1661
I V. NUTRIENT LOADING CHAPACTERISTICS(LAKE)
A. iNPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL IKG/YR) INDUSTRIAL (KC,/YR) SEPTIC TANKS (KG/VP) (KG/YR) (KG/YR)
PHOSPHORUS 7800. 7800.
NITROGEN 369210. 369210.
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/VP) RETENTION (G/SQ M/YR)
PHOSPHORUS 205b. 74. 2.27
NITROGEN 201830. 45. 107.3
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) (SQ KM) (Mb/L) (14G/L) (KG/SO KM1VM) (K6/S J KM/VP)
RIG CREEK 0.510 104.6 0.162 7.890 33. 1780.
LITTLE CREEK 0.260 53.9 0.295 8.698 53. 1949.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOWA
NAME — BLACK HAWK LAKE (EUTROPHIC)
COUNTY — SAC
STORE T NO. — 1903 WORKING PAPER NO. 496, NTIS ACCESSION NO. P5—253 247/AS
I. MORPHOMETWY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TO IAL INFLOW RETENTION TIME
(SO KM) (SO KM) (METERS) (CMS) (DAYS)
NATURAL 60.30 3.72 1.7 0.270 211.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
AL$ALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL PMG/L ORTHO P(MG/L INORG N(MG/L) TOTAL N(MG/L)
147. 322. 0.3 0.185 0.020 0.130 1.715
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL 6AL ASSAY CONTROL YIELD LIMITING NUrRIENT AT SAMPLING TIME
(UG/L) (MG/L——ORY NT)
49.7 15.6 I 4/19/74) P ( 7/ 3/74) NO DATA ( 9/25/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/39/14 7/ 3/74 9/25/14
GENERA COUNT GENERA COUNT GENERA COUNT
NITZSCHIA 0657 APHANIZOMENON 9323 MERISMOPEDIA 28092
STEPHANOOI5CU5 16611 SPHAEROCYSTIS 6441 OSCILLATORIA 3904
FLAGELLATES 9196 OOCYSTIS 5612 FLAGELLATES 3140
CRYPTOMONAS 31q4 CRUCIGENIA 1160 APHANIZOMENON 2885
ANKISTRODESMUS 2875 STEPHANODISCUS 835 STEPHANODISCUS 2631
OTHER 5964 OTHER 1855 OTHER 13665
TOTAL 59097 TOTAL 25232 TOTAL 54317
IV. NUTRIENT LOADING CHAPACTERISTICS(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)
PHOSPHOWUS °tO•Q 0 00 0 0 0 00*00*00 25. 2010. 2035.
NITROGEN 0* 0 04* 0*00 *0*0*00*0 905. 79585. 80490.
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 1635. 20. 0.55
NITROGEN 23995. 70. 21.6
V. NON—POINT-SOURCE NUTRIENT EXPORT
SIREAM NAME MEAN FLOW OPAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (MG/L) (MG/L) (KG/SO KM/YR) KG/SO KM/YR)
UNNAMED STREAM dl 0.210 41.1 0.281 7.231 34. 1335.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOWA
NAME — CLEAR LAKE (EUTROPHIC)
COUNTY — CEWRO GORDO
STORET NO. — 1904 WORKING PAPER NO. 497, NTIS ACCESSION NO. PB—259 lbS/AB
I. MORPHOMETRY
LAKE TYPE ORAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (50 1 (M) (METERS) (CMS) (YEARS)
NATURAL 14.74 3.0 *0•40*
Ii. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) COM)UCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG NMG/L) TOTAL N(MG/L)
155. 272. 0.9 0.059 0.010 0.070 1.390
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL(,AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——ORY WT)
17.4 2.8 I 4/18/74) P C 7/ 3/74) NO DATA ( 9/23/74) N
SUMMARY OF PHYTOPIANKTON DATA
4/18/74 7/ 3/74 9/2J/74
GENERA COUNT GENERA COUNT GENERA COUNT
DINObRYON 5340 MELOSIRA 5919 ANACYSTIS(MICROCYSTIS) 8662
MELOSIR4 3432 ANACYSTISIMICROCYSTIS) 3277 APHANOCAPSA 3948
FRAGILARIA 2091 COELOSPHAERIUM 1609 FRAGILARIA 471
ASTERIONELLA 884 OOCYSTIS 53b BLUE—GREEN FILAMENT 236
FLAGELLATES 793 FRAGILARIA 53b CRYPTOMONAS 236
OTHER 2f49 OTHER 2242 OTHER 2416
TOTAL 15189 TOTAL 14119 TOTAL 15969
IV. NUTRIENT LOADING CHARACTERISTICSLAIE
A, INPUT
POINT SOUNCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/VP) SEPTIC TANKS (KG/VR) (KG/VP) ( 1 (6/YR)
PHOSPHORUS .o..a.oo.o eoooeøoooo
NITROGEN
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/Yk) RETENTION (G/SO M/YR)
PHOSPHORUS
NITROGEN
•° ° LAKE SAMPLING ONLY ****

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOWA
NAME — LOST ISLAND LAKE (FUTROPHIC)
COUNTY — CLAY,PALO ALTO
STOHET NO. — 1906 WORKING PAPER NO. 499, NTIS ACCESSION NO. P8—259 171/AR
I. MORPHOMETWY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TiME
(SO KM) (SO 1(M) (METERS) (CM S) (YEARS)
NATURAL 5.10 3.0 0 *•OO
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITYIP4G/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTIIO P(MG/L) INURG N(MG/L) TOTAL N(MG/L)
178. 303. 2.0 0.146 0.021 0.065 2.665
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG h) (MG/L.——DRY WT)
36.1 C 4/22/74) P C 7/ 9/74) NO DATA C 9/23/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/24/74 9/23/74
GENERA COUNT GFNERA COUNT
FLAGELLATES 1845 APHANOCAPSA 7769
CRYPTOMONAS 865 LYNGBYA 7684
FRAGILARIA 807 MELOSIRA 5805
ANKISTRODESMUS 692 NIUSCHIA 5122
DINOBRYON 432 MERISMOPEDIA 3927
OTHER 4264 OTHER 8701
TOTAL 8905 TOTAL 39014
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOthICE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (XG/YR) SEPTIC TANKS (1(6/YR) (KGfYR) (IcG/YR)
PHOSPHORUS
NITROGEN •Q*Q*QOQ• 0 0*0*0 0*
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(IcG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS
NITROGEN
• ° LAKE SAMPLING ONLY ***

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COMPENDIUM OF NATIONAL FUTROPHICATION SURVEY LAKES IN IOWA
NAME — LAKE MACBRIDE (EUTROPHIC)
COUNTY - JOHNSON
STORE r NO. — 1907 WORKING PAPER NO. 500, NTIS ACCESSION NO. P8—258 295/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (50 1 (M) (METERS) (CMS) (YEARS)
Impoundment 69.90 3.84 7.3 0.410 2.2
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEOIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TO IAL P(MG/L) ORTHO P(MG/L) INOPG N(MG/L) TOTAL N(MG/L)
125. 253. 1.1 0.061 0.010 2.035 2 .595
Ill. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLINu TIME
(UG/L) (MG/L——DRY WT)
17.1 *00 00 * * *O ( 4/18/74) P ( 7/ 3/74) NO DATA ( 9/24/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/1l’/74 7/ 3/74 9/24/74
GENERA COUNT GENERA COUNT GENERA COUNT
CENTRIC DIATOM 8889 MELOSIRA 4275 MELOSIRA 5076
FLAGELLATES 308) OOCYSTIS 792 FLAGELLATES 1232
CRYPTUMONAS 652 FLAGELLATES 317 PENNATE DIATOMS 859
APHANIZOMENON 593 CRYPTOMONAS 196 CRYPTOMONAS 672
STEPHANODISCUS 474 LEPOCINCLIS 119 SYNEORA 635
OTHER 118 OTHER 315 OTHER 1268
TOTAL 13807 TOTAL 6016 TOTAL 9742
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 1075. *040*0*0* 1510. 2585.
NITROGEN 3230. 0*00*0*0*0 0*40 *0*00* 61650. 64880.
B. OUTPUT
OUTLtT(S PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 725. 72. 0.67
NITROGEN 28b90. 56. 16.9
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) (SQ KM) (MG/L) (MG/LI (KG/SO KM/YR) (KG/SQ KM/YR)
MILL CREEK ‘31 0.130 21.5 0.923 7.155 22. 870.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOWA
NAME — PRAIRIE HOSE LAKE (EUTRflPHIC)
COUNTY - SHELAY
STORET r i o. - 1908 WORKING PAPER NO. 501. NTIS ACCESSION NO. P8—259 172/AS
I. MORPHOM TRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM (SQ cM) (METERS) (CMS) (YEARS)
1MPOUNDMENT 20.40 0. RA 3.3 0.080 1.2
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CDNDUCTIVITYWMHOS (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
16b. 2 e v. 0.9 0.056 0.010 0.210 1.260
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL VIELO LIMITING NUTRIENT AT SAMPLINU TIME
(UG/Li (M6/L——DRY WT)
17.4 ( 4/17/74) P C 1/ 2/74) NO DATA ( 9/25/74) P AND N
SUMMARY OF PHYTOPLANKTON DATA
4/17/74 7/ 2/74 9/25/74
GENERA COUNT GENERA COUNT GENERA COUNT
ASTERIONELLA 7006 MELOSIRA 522 CRYPTOMONAS 766
CENTRIC DIATOM 2158 ANA8AENA 494 CLOSTERIOPSIS 681
FLAGELLATES 148T APHANIZOMENON 385 FRAGILARIA 383
DINOBRYON 835 FRAGILARIA 275 OSCILLATORIA 255
ANKISTRODESMUS 435 CRYPTOMDNAS 220 STEPHANDDISCUS 85
OTHER 1365 DTHFR 521 OTHER 42
TOTAL 13286 TOTAL 2411 TOTAL 2212 —J
IV. NUTRIENT LOADING CHARACTERISTICS(LApcE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTR 1AL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS *0*4*o*ao 635 . 635.
NITROGEN 14090. 14090.
A. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/ fR) RETENTION (6/SQ M/YR)
PHOSPHORUS t7U. 73. 0.12
NITROGEN 47O . 67. 16.0
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW flRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO KM) (MG/L) (MG/U (KG/SO KM/YR) (KG/SQ KM/YR)
UNNAMED STREAM St 0.020 5. ? 0.320 4 .970 32. 674.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOWA
NAME — RATHBUN RESERVOIR (EUTROPHIC)
COUNTY — APPANOOSE,LUCAS.MONROE.WAYNE
STORET NO. — 1909 WORKING PAPER NO. 502. NTIS ACCESSION NO. P8—265 610/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN OEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (50 KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 1421.90 44.52 6.7 9.050 1.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG NIMG/L) TOTAL N(MG/L)
96. 232. 0.6 0.071 0.008 1.170 1.765
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY Wfl
12.0 1.1 — 6.8 C 4) C 4/19/74) P C 7/ 3/74) NO DATA C 9/24/74) P
SUMMARY OF PHYTOPLANKTON OATA
4/19/14 7/ 3/74 9/24/74
GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANOOISCUS 30898 MELOSIRA 308 MELOSIRA 818
FLAGELLATES 958 FLAGELLATES 213 FLAGELLATES 510
ANKISTRODESMUS 766 CRYPTOMONAS 142 CRYPTOMONAS 248
MELOSIRA 419 KIRCHNERIELLA 95 STEPHANODISCUS 198
TRACHELOMONAS 287 STEPHANODISCUS 71 RAPH1DIOPSIS 124
OTHER 43? OTHER 216 OTHER 719
TOTAL 33820 TOTAL 1045 TOTAL 2617
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNiCIPAL (KG/YR) INDUSTRIAL CKG/YR) SEPTIC TANKS CKG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 9 35. 0* Ø4040*0 10. 99310. 108855.
NITROGEN 23785. *000*0*400 425. 874960. 899170.
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 19290. $2. 2.45
NITROGEN 546945. 39. 20.2
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
CCMS) (50 1 (M) (MG/L) (MG/ U (KG/SQ KM/YR) (KG/SQ KM/YR)
S.F. CMARITON RIVER 2.770 435.1 0.213 1.870 36. 402.
CHARITON RIVER 3.000 411.4 0.630 3.519 10 5. 788.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOWA
NAME — RED ROCK RESERVOIR (EUTROPHIC)
COUNTY — MARION
SIORET NO. - 1910 WORiCING PAPER NO. 503. NTIS ACCESSION NO. PB-261 826/AB
I. MORPHOMFTRy
LAIcE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(S Q KM) (SQ KM) (METERS) (CMS) (DAYS)
IMPOUNDMENI 31916.60 36.2? 3.0 124.140 10.0
II. PHYSICAL AND CHEMICAL CHARACTFRISTICS
MEDTAN MEDIAN MEAN SECCriI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(IJMHOS) (METERS) TOFAL P(MG/L) ORTHO P(M6/L) INORG N(MG/L) TOTAL N(MG/L)
254. 572. 0.7 0.180 0.104 1.880 2.860
Ill. RIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
14.1 2.8 ( 4/18 174) P ( 7/ 8/74) NO DATA ( 9/24/74) P
SUMMARY OF PHYTOPLANIcTOrg DATA
4/18/74 7/ 8/74 9/24174
GENERA COUNT GENERA COUNT 6ENERA COUNT
CENTRIC DIATOM 9795 NITZSCHIA 454 CYCLOTELLA 3213
STEPHANODISCUS 1245 OSCILLATOPIA 454 OSCILLATORIA 711
SYNEDRA 974 ACT INASTRUM 363 MELOSIRA 707
CRYPTOMONAS 481 STEPHANODISCUS 318 FLAGELLATES 321
ANKISTWODFSP IUS 325 COELOSP’-IAERI’JM d73 MERISMOPEDIA 193
OTHER 648 OTHER 2044 OTHER 1028
TOTAL 13414 TOTAL 3906 TOTAL 6233
IV. NUTRIENT LOADING CMARACTERISTJCS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON-POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YIfl SEP IIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPMOPIJS 427160. *0*0* 0*0* 0*4*0*0 0*0 2070570. 2497130.
NITROGEN 1159805. *o*o••oo*o 0*0*004*0* 28901345. 30061150.
N. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(P(G/YR) RETENTION (6/SQ M/YR)
PHOSPHO PiJ S 9781,30. 61. 68.96
NITROGEN 22386480. 26. 830.0
V. NON—POINT-SOURCE NUTHIENT EXPORT
STREAM NAMF MEAN FLOd URAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO KM) (Mb/L) (MG/L I (KG/SO KM/YR) (KG/SQ KM/YR)
DES MOINFS RIVER A3 114.460 30IM6.4 0.402 6.615 65. 109.
WHITE HPEAST CREEK 5.5 10 984.2 0 .4 16 3.431 18. 684.
CALHOUN CRFFK 0.330 58.8 0.498 7.796 68. 1560.
VI. MEAN NUTPIFNT CONCENTWATION5 IN UNGAGEO STREAMS
STRtAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (Mb/L)
COMPETINE CREEK * 4.244 9.648
WALNUT CRFEK 0.300 7.383
HAWK HUN 0.113 4.193
PRAIRIE CREEK 0.39 1 6.889
BUTCHER CPFFK 0.195 3.62 5
* RELOW POINT SOURCE.

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CUMPENDIUM OF NATIONAL EUIROPHICATIUN SURVEY LAKES IN IOWA
NAME — ROCK CREEK LAKE (EUTROPHIC)
COUNTY — JASPER
STOPET NO. - 1Q11 WORKING PAPER NO. 504. NTIS ACCESSION NO. P8258 89/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE ARIA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ KM) (METERS) (CMS) (DAYS)
IMPoUNDMENT 107.20 2.60 •7 0,570 143.0
IT. PHYSICAL AND CHEMICAL CIIARACTFRISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG NCMG/L) TOTAL N(M6/L)
169. 333. 0.5 0.065 0.001 1.400 2.430
111. AIOLOGICAL CHARACTERISTICS LAKF
MEAN CHLOROPHYLL A ALi,AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLIN , TIME
(iJc,/L) (MG/L——DRY WI)
IR.4 0.2 — 5.0 ( 2) C 4/19/74) P 7/ 3/74) NO DATA ( 9/24/74) P
SUMMARY OF PHYTOPLANK1ON DATA
4/19/74 7/ 3/74 9/24/74
GENERA COUNT r,ENEPA COUNT GENERA COUNT
CYCLOTELLA 16387 CRYPTUMONAS 502 APHANIZOMENON 2759
FLAGELLATFS 712 CENTRIC DIATOM 413 CRYPTOMONAS 690
CRYPTOMONAS 574 NITZSCHIA 3 S FLAGELLATES 439
CHLAMYOOMONAS 122 MELOSIRA 59 CHLAMYDOMONAS 313
APNANILOMFNON 52 LEPOCINCLIS 59 CRUCIGENIA 125
OTHER 243 OTHER 118 OTHER 125
TOTAL 18090 TOTAL 1476 TOTAL 4451
IV. NUTRIENT LOADING CHARACTEHISTTCS(LAKE)
A. INPUT
POiNT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNiCIPAL (KG/YR) INDUSTRIAL CKG/YR) SEPTIC TANKS (KIj/YR) (KO/YR) (KG/YR)
PHOSPHORUS 8125. 8125.
NITROGEN 92420. 92420.
A. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION IG/SU M/YR)
PHOSPHORUS 1450. f42. 3.12
NITROGEN 7031 5. 24. 35.5
V. NON—POINT-SOURCE NUTRIENT E*POPT
STREAM NAME MEAN FLOd DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO KM) (MG/L) (Mb/L) (KG/SO KM/YR) (KG/SQ KM/YR)
ROCK CREFi< 0.360 61.9 0.243 4.7 9 77. 857.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOUA
NAME — SILVER LAKE (EUTROPHIC)
COUNTY - WORTH
STORET NO. — 1912 WORKING PAPER NO. 505. NTIS ACCESSION NO. P9—259 160/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (S Q KM) (METERS) (CMS) (YEARS)
NATURAL R.20 1.29 1.2 0.040 1.2
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITYCUNHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
110. 159. 0.4 0.193 0.034 0.565 4.390
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——ORY WT)
95.3 23.6 4/18/74) P ( 7/ 3/74) NO DATA ( 9/23/74) N
SUMMARY OF PHYTOPLANKTON DATA
7/ 3/74 9/23/74
GENERA COUNT GENERA COUNT
LYNGBYA 47518 LYNGBYA 184949
APHANIZOMENON 10914 APMANIZOMENDN 10192
MELOSIRA 5022 ANACYSTIS(MICROCVSTIS) 8281
SYNEDRA 4443 SCENEDESMUS 2549
SCENEDESMUS 3477 APHANOCAPSA 1214
OTHER 11299 OTHER 4672
TOTAL 82673 TOTAL 211917
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/YRI (KG/YR) (KG/VP)
PHOSPHORUS 00 *0000 *00 00 00 04 00 00 00000 00 00 315. 315.
NITROGEN *oo. 000 0 00 00 0000 000 0 0 0 0 00 0*..t 4990. 4990.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 200. 37. 0.24
NITROGFN 5495. LOSS 3.9
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) (50 KM) (MG/L) (MG/L) (KG/SQ KM/VR) (KG/SQ KM/YR)
SILVER LAKE MARSH DUTLET 0.010 2.4 0.293 3.457 42. 521.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOWA
NAME — SPIRIT LAKE (EUTROPHIC)
CUUNTY — DICKINSUN
STORET NO. — 1913 WORKING PAPER NO. 506 ’ NTIS ACCESSION NO. P9—259 124/AS
I. MORPHOMETHY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (Su 1 (M) (METERS) (CMS) (YEARS)
NATURAL 23.00 5.5 *0 *0*0*00 *000*0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI OISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(M6/L) TOTAL N(MG/L)
184. 368. 2.0 0.041 0.007 0 .090 1.215
III. BIOLOGICAL CHARACTIRISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
12.6 0.1 ( 4/23/74) P AND N I 7/ 9/74) NO OATA I 9/23/74) N
SUMMARY OF PHYTDPLANKTON DATA
4/23/74 7/ 9/74 9/23/74
GENERA COUNT GENERA COUNT GENERA COUNT
FLAGELLATES 912 APHANOCAPSA 1569 APHANOTHECE 1162
DINOBRYON 240 APHANIZOMENON 26d ANABAENA 734
CRYPTOMONAS 144 SCHROEDERIA 262 APHANIZOMENON 326
APHANOTHECE 96 ANAHAENA 232 COELOSPHAERIUM 285
DINOFLAGELLATES 48 CRYPTOMONAS 145 OSCILLATORIA 245
OTHE H 97 OTHER 174 OTHER 937
TOTAL 1537 TOTAL 2644 TOTAL 3709
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 0*00*0*0*0 *00*0*0*00 *00*00*000 0 000000 0 00 *00*00*0*0
NITROGEN 0*0 00*0*0* *000*0*0*0 *00*00*0*0 00*000*0 0* *00000*00*
8. OUTPUT
OUTLtT(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHUSPHORUS 00*0*0*0*0 *0*0* *00000*0*0
NITROGEN 0*0*00*0*0 000*0 *0*0*0*0*0
*00* LAKE SAMPLING ONLY *0*0

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NAME — VIKING LAKE
COUNTY - MONTGOMERY
STOREI NO. - 1914
I. MORPHOMETRY
LAKE TYPE ()RAINAGE AREA
(SO RH)
IMPOUNDMENT 10.30
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/Li CONDUCTIVITY (UMHOS)
120. 219.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
lUG/Li (MG/L——ORY WT)
2b.0
SUMMARY OF PHYTOPLANKTON DATA
4/17/74 7/ 2/74
COUNT GENERA
49981 FRAGILARIA
3617 ANABAENA
767 APMANIZOMENON
329 CRYPTOMONAS
219 SCHROEDERIA
110 OTHER
,S023 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL 1KG/YR)
PHOSPHORUS
NITROGEN *4040 *00
B. OUTPUT
OUTLET(S)
(K6/YR)
PHOSPHORUS 170.
NITROGEN 278 .
V. NON—POINT—SOURCE NUTRIENT EXPOPT
STREAM NAME MEAN FLOW
(CMS)
UNNAMED CREEK 1 O.C1O
VI. MEAN NUTRIENT
STREAM NAME
UNNAMED CREEK C l
POINT SOURCE
SEPTIC TANKS (KG/YR)
040 00 00 400
00*4* 4*0*
LAKE SURFACE AREA LOADING RATE
(G/SQ M/YR)
0 • 49
7.2
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN IOWA
(EUTROPHIC)
WORKING PAPER NO. 507. NTIS ACCESSION NO. P8—259 166/AS
SURFACE AREA
(SO KM)
MEAN DEPTH
(METERS)
(CMS)
(YEARS)
MEAN SECCHI DISC
(METERS)
MEDIAN
TOTAL P(MG/L)
ORTMO P 1MG/Li
INORG N(MG/L)
TOTAL N(MG/L)
GENERA
ASTER IONELLA
APHANIZOMENON
FLAGELLATES
DINOBRYON
C RY P T OM ON AS
OTHER
TOT AL
LIMITING NUTRIENT AT SAMPLING TIME
4/17/74) N ( TI 2/74) NO DATA ( 9/25/74) N
COUNT
GENERA
COUNT
1719
COELOSPHAERIUM
1684
700
FLAGELLATES
1500
641
APHANIZOMENON
398
262
ANACYSTIS(MICROCYSTIS)
184
233
ANABAENA
183
389
OTHER
306
POINT SOURCE
INDUSTRIAL (KG/YR)
*000*00*0*
00 40*000*4
- PERCENT
RE TENT ION
43.
37.
NON—POINT SOURCE
(KG/YR)
300.
4395.
TOTAL LOADING
(KG/YR)
300.
4395.
ARA INAGE AREA
(50 KM)
H 1.0
CONCENTRATIONS IN UNGAGED STREAMS
MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
0.127 1.513
MEAN TOTAL P
(MG/Li
0.204
MEAN TOTAL N
(MG/Li
1.94 0
TOTAL P EXPORT TOTAL N EXPORT
(KG/SO KM/YR) (KG/SQ KM/YR)
30 , 385.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES 1N IOWA
NAME — WEST OK080JI LAKE (EUTROPHIC)
COUNTY - DICKINSON
STORET NO. — 191 5 WORKING PAPER NO. 508, NTIS ACCESSION NO. P6—260 508/AS
I. MORPHOMETRY
LA4SE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SU KM) (SQ KM) (METERS) (CMS) (YEARS)
NATURAL * * 0 * * * * * Q * 14.93 13.7 *0 0 * 0 * 0 * 0 * 0*0*9*
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCI4I DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
219. 386. 3.0 0.046 0.017 0.060 0.925
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CMLOROP’IYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) CMG/L——DRY WT)
1.7 0.1 — 3.8 ( 2) ( 4/22/14) P 1 7/ 9/74) NO DATA ( 9/23/14) N
SUMMARY OF PHYTOPLANKTON DATA
4/22/74 7/ 9/14 9/23/74
GENERA COUNT GENERA COUNT GENERA COUNT
CYCLOTELLA 1395 FLAGELLATES 642 OOCYSTIS 164
FRAGILARIA 93u APHANOCAPSA 411 SPisAEROCYSTIS 144
FLAGELLATES 465 APP4ANIZQMENON 285 ANACYSTIS(MICROCYSTIS) 144
MELOSIRA 62 FRAGILARIA 15? FLAGELLATES 123
PERI OINIUM 31 SCHROEDERIA 11 MELOSIRA 82
OTHER 155 OTHER 271 OTHER 205
a
TOTAL 3038 TOTAL 1897 TOTAL 862
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/Yin INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/ nfl
PHUSPHDRIJS *44444*444 49*4*044*4 404 -444*44 0444444 *44
NITROGEN *4*04*4444 *4*4*0*4*4 *4 .444*9*4 4*0*4*0*04 *4444*4*94
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YH) RETENTION (G/SO N/YR)
PHUSPHORUS 444*444449 4444* *444*44444
NITROGEN 9*4*44444* 4*04* 44*4*44444
°°°° LAKE SAMPLING ONLY °°°°

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LAKE TYPE DRAINAGE AREA
(SO NM)
IMPOUNDMENT 14322.70
11. PHYSICAL AND CHEMICAL CHARACTERISTICS
MED iAN MEDIAN
ALKAL INITY (MG/L CONDUCTIVITY (UMMOS)
119. 965.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL YIELD
(UG/L I (MG/L——ORY WTp
4.2 0.1
SUMMARY OF PHYTOPLANKTON DATA
4/ 15114 6/26/74
COUNT GENERA
312 CHROOMONAS
69 CRYPTOMONAS
35 CARTERIA
35 DINOBRY ON
35 STEP HANOOISCtjS
0 OTHER
486 TOTAL
IV. NUTRIENT LOADING CHARACTERISTJCS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KG YR)
O t t 00 00 * 0*
*0000*00*0
PHOSPHORUS
NITROGFN
3. OUTPUT
PHOSPHORUS
NITROGEN
V. NUN—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(CM5
SMOKY HILL RIVER 2.100
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED
STREAM NAME MEAN TOTAL P
(MG/I)
PAGE CHEEK 0.05$
10/ i/fl
GENERA
CHROOMONAS
DACTYLOCOCCOPS IS
CR VP TOMONAS
0CC YST IS
SCENEVESMUS
OTHER
53 TOTAL
COUNT
1041
337
123
123
123
366
2113
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME — CEDAR HLUFF RESERVOIR IMESOTROPHIC)
COUNTY — TREGO
STORET NO, - 2001 WORKING PAPER NO. 511. NTIS ACCESSION NO. P6—269 538/AS
I. MORPHOMETRY
(S Q
NM )
(METERS )
(CMS)
26.84
IVEARS)
(METERS)
TOTAL
P(MG/L)
ORTHO
1.7
INORG N(NG/L)
TOTAL N(MG/L)
GENERA
SYNEORA
CYCLOTELLA
CRYPTOMONA5
COCYSTIS
SCLNEDESMUS
OTnER
TOTAL
LIMITING NUTRIENT AT SAMPLING TIME
6/15/74) P ( 6/26/74) NO DATA (10/ 1fl4) N
COUNT
437
38
19
19
19
0
POINT SOURCE
INDUSTRIAL (KG/YR)
000000 0000
0000 00 000 0
OUTLET IS)
(KG/YR I
2090.
738Th.
POINT SOURCE
SEPTIC TANKS (KG/YR)
5.
205.
PERCENT
RETENT ION
53.
53.
NON—POINT SOURCE
4KG/YR)
4430.
157540.
LAKE SURFACE AREA LOADING RATE
(6/SQ M/YRI
0.17
5.9
TOTAL LOADING
(KG/YB)
4435.
157745 .
DRAINAGE A#QEA
(SO NM)
13519.8
STREAMS
MEAN TOTAL N
(MG/L)
1.85%
1MG/ V
N EXPORT
(M6/L)
(KG/SO KM/YR)
(KG/SQ KM/YB)

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LAIcE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 647.50
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
-ALKALINITY(MG/L) CONDUCTIVITY (UMMOS)
155. 282.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY wT
9.8 6.1 — 9.6 ( 2)
SUMMARY OF PHYTOPLANKTON DATA
4/11/74 6/25/74
GENERA COUNT GENERA
ANKISTRODESMUS 1140 CHROOMONAS
CHROOMUNAS 1020 MELOSIRA
STEPHANODISCUS 900 STEPHANODISCUS
MELOSIRA 330 CLOSTERILJM
CRYPTOMONAS 210 SKELETONEMA
OTHER 331 OINFR
TOTAL 3991 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KO/YR)
PHOSPHORUS 85.
NITROGEN 1760.
3. OUTPUT
OUTLET(S)
(KG/(R)
PHOSPHORUS 9010.
r, )ITROGFN 16574 5.
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW ‘)RAINAGE AREA
(CMS) (SQ çM)
NEOSHO RIVER 0.900 192.7
SHORT CREEK 0.129 26.2
GILMORE CREEK 0.145 29.8
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGA(ED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (M(,/L)
LAINDS CREEK 0.146 2.654
MIDDLE CREEK 0.192 2.951
NAUN CREEK 0.086 2.520
NEST FORK NEOSHO RIVER 0.1 58 2.690
GENERA
CYCLOTELLA
CHROOMONAS
S TEPHANOD I SCUS
ANK ISTRODESJ4US
CRY PTOMON AS
OTHER
TOT AL
POINT SOURCE
SEPTIC TANKS (KG/YR)
LAKE SURFACE AREA LOADING RATE
(G/SQ M/YR)
2.07
34 • 0
COMPENDIUM OF NATIONAL EUTROPHICAIION SURVEY LAKES IN KANSAS
NAME — COUNCIL (,ROVE RESERVOIR (EUTROPHIC)
COUNTY — MORRIS
STORET NO. — 2002 WORKINC, PAPER NO. 512 NTIS ACCESSION NO. P8—269 844/AB
I. MORPHOMETRY
SURFACE AREA
(SQ KMI
13.27
MEAN SECCHI DISC
(METERS)
0.4
MEAN DEPTH
(METERS)
3.9
MEDIAN
TOTAL P(MG/L)
0.069
TOTAL INFLOW
(CMS)
3.224
MEDIAN
ORTHO P(MG/L)
0 • 028
RETENTION TIME
(DAYS)
21M.0
MEUIAN
INORG N(MG/L)
0.830
LIMITING NUTRIENT AT SAMPLING TIME
4/11/74) P ( 6/25/74) NO DATA (10/ 2/74) P
10/ 2/74
COUNI
527
176
70
35
35
36
879
M CD IAN
TOTAL N(MG/L)
1.245
TOTAL LOADING
(KG/YR)
27470.
451100.
COUNT
1583
762
293
59
59
59
2815
NON—POINT SOURCE
(KG/YR )
26885.
449340.
POINT SOURCE
INDUSTRI AL (KG/YR)
PERCENT
RETENT ION
67.
63.
S
MEAN
TOTAL P
MEAN
TOTAL -N
TOTAL
P
EXPORT
TOTAL
(1 EXPORT
(MG/U
(MG/L)
(KG/SO KM/YR)
(KG/So KM/YRJ
0.345
3.646
60.
697.
0.126
2.479
41.
878.
0.062
3.106
6.
476.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES JN KANSAS
NAME — ELK CITY RESERVOIR (EUTROPHIC)
COUNTY — MONTGOMERY
STORET NO. - 2003 WORKING PAPER NO. 513. NTIS ACCESSION NO. P8—269 5391*8
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (SO 1 (M) (METERS) (CMS) (DAYS)
IMPOUNDMENT 1642.10 17.81 2.4 11.460 45.0
IL. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CDNDUCTIVITY(UMHOS) (HETERS) TOTAL P(MG/L) ORTHO P IMG/L) INORG N(MG/L) TOTAL N(MG/L)
123. 269. 0.2 0.030 0.003 0.590 0.870
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (NG/L——DRY WT)
3.2 6.8 ( 4/10/74) P ( 6/24/14) NO DATA (10/ 3/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/10/14 6/24/74 10/ 3/74
GENERA COUNT GENERA COUNT GENERA COUNT
CENTRIC DIATOM 664 PHORMIDIUM 436 CHROOMONAS 129
CHROOMONAS 498 CENTRIC DIATOM 275 APHANIZOMENON 78
MESOSTIGMA 498 PTEROMONAS 215 CRYPTOMONAS 78
CRYPTOMONAS 373 CHROOMONAS 229 CYCLOTELLA 26
GYMNODINIUM 249 TRACHELOMONAS 206 SCENEDESMUS 26
OTHER 580 OTHER 849 OTHER 0
TOTAL 2862 TOTAL 2210 TOTAL 337
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/YRJ (KG/YR) (KG/YR)
PHOSPHORUS 2*10. 37280. 39690.
NITROGEN 7230. 546230. 553460.
d. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(JCG/YR) RETENTION (6/SO M/YR)
PHOSPHORUS 21940. 45. 2.23
NITROGEN 405870. 21. 31.1
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 1 (M) (MG/L) (MG/L) (KG/SO KM/YR) (KG/SQ KM/YR)
ELK R1VER 6.920 1 OSL.5 0.064 1.184 20. 286.
DUCK CREEK 1.180 163.4 0.132 2.075 30. 413.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
SALT CREEK 0.106 1.404

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME — FALL RIVER RESERVOIR (EUTROPHIC)
COUNTY — GREENWOOD
STORET NO. — 2004 ORIcING PAPER NO. 514. NTIS ACCESSION NO. PB—269 8361AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SQ KM) (METERS) (Cr45) (DAYS)
IMPOUNDMENT 1S 5.i0 10.52 3.0 10.270 40.0
II. PHYSICAL ANt) CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITYUJMHOS) (METERS) TOTAL P(MG/L) ORTHO P1MG/U INORG N(f4G/L) TOTAL N(MG/L)
137. 363. 0.3 0.053 0.016 0.470 0.650
III. BIOLOGICAL CHARACTI RI5TICS (LAKE)
MEAN CHLOROPHYLL A ALUAL ASSAY CONT’)OL YIELD LIMITING NUTRIENT AT SAMPL1NL TIME
(UG/L) (M6/L——DRY WT)
7.7 0.4 — 5.b 1 2) 4/10/74) p ( 6/24/74) NO DATA (10/ 2/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/10/74 6/24/74 10/ 2/74
GENERA COUNT GENERA COUNT GENERA COUNT
ASTERIONELLA 211 CRYPTOMONAS 1202 CHROOMONAS 550
CRYPTOMONAS 210 CHPOOMUNAS 791 I4ELOSIRA 220
CHMOOMONAS 158 STEPHANODISCUS 791 CLOSTERIUM 44
MELOSIRA 105 SYNEDRA 63 NITZSCHIA 22
STEPHANODISCUS 105 ANABAENA 32 STEPHANODJSC-US 22
OTHER 106 OTHER 32 OTHER 21
TOTAL 895 TOTAL 2911 TOTAL 879
IV. NUTRiENT LOAOINr, CHARACTERISTICS(LAKE)
4. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON-POINT SOURCE T-OTAL LOADING
MUNICIPAL (IcG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PMOSPHO4 1JS 4120. 5. 15250. 19375.
NITROGEN 12350. GO* *OD*OQ 215. 489805. 502370.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(IcG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 2469 . LOSS 1.84
NITROGEN 542230. LOSS 47.8
V. NON—POINT—SOURCE RUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA -MEAN -TOTAL P MEAN TOT-AL--N TOTAL P EXPORT TOrAL N EXPORT
(CMS) (SQ KM) (MG/U (MG/U (KG/SQ KM/YR) (KO/SU KM/YR)
FALL RIVER 5.410 795.1 0.087 1.483 9. 307.
OTTER CREEK 2.400 334.1 0.053 1.424 11. 330.

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SUMMARY OF P1IYTOPLANKTON DATA
4/11/74 6/23/74
GENERA COUNT GENERA
STEPHANODISCUS 1143 MELOSIRA
CENTRIC DIATOM 842 FLAGELLATFS
CHROOMONAS 421 STEPHANODISCUS
ACTINASTRUM 241 CYCLOTELLA
MELOSIRA 180 OSCILLATORIA
OTHER 542 OTHER
TOTAL 3369 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAME)
A. INPUT
POINT SOURCE
MUNICIPAL IKG/YR)
PHOSPHORUS 84 550.
N ITROGFN 229025.
8. OUTPUT
OUTLET (SI
(KG/YR)
PHOSPHORUS 1998 7 5.
NITROGEN 24g04 55.
V. NON—POiNT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(CMS)
NEOSHO RIVER 9.850
EAGLE CREEK 0.960
COTTONWOOD RIVER 20.650
BADGER CREEl’ 0.500
Vi. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED
STREAM NAME MEAN TOTAL P
(MG/L)
OTTER CREEK 0.076
POINT SOURCE
SEPTIC TANKS IKG/YR)
LAKE SURFACE AREA LOADING RATE
16/SQ M/YR)
9.20
103.1
C0MPENOIU OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME - JOHN REDMOND RESERVOIR (EUTROPHIC)
COUNTY - COFFEY. LYON
STORET NO. — 2005 WORKING PAPER NO. 515, NTIS ACCESSION NO. P8—269 845/AB
I. MORPliOM TRy
LAKE TYPE DRAINAGE AREA SLJ FACE AREA
(SO KM) (SQ MM)
IMPOUNDMENT 7808.80 38.04
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/LI CONDUCT IVITY(UMHOS)
159. 333.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
lUG/L i (MG/L——DRY Wfl
9.5 12.R
MEAN DEPTH
(METERS)
2.0
TOTAL INFLOW
(CMS)
40.390
RETENTION TIME
(DAYS)
23.0
MEAN SECCIII DISC
(METERS)
MEDIAN
TOTAL P 1MG/LI
MEDIAN
ORTHO P(M6/L)
MEDIAN
INOPG N(MG/L)
TOTAL NCHG/L)
0.2
0.118
0.066
1.250
1.810
LIMITING NUTRIENT AT SAMPLING TIME
C 4/11/74) P C 6/23/74) P
(10/ 1/74) P
10/
1/74
COUNT
GENERA
COUNT
379
STEPIIANODISCUS
167
169
CHROOMONAS
139
126
GLOEOCYSTIS
139
84
CRYPTOMONAS
83
84
PENNATE DIATOMS
56
338
OTHER
0
POINT SOURCE
INDUSTRIAL (KG/YR)
•*. oooooo
PERCENT
RETENT ION
43.
37.
NON—POINT SOURCE
CKG/ YR I
265305.
3693215.
MEAN TOTAL P
(MG/L)
0.217
0.155
O.39b
0.183
DRAINAGE AREA
(SO MM)
2007 • 2
142.2
4843.3
72.0
STRE AMS
MEAN TOTAL N
(MG/LI
1.820
TOTAL LOADING
(KG /YR)
349855.
3922240.
TOTAL N EXPORT
(KG/SQ KM/YR)
415.
773.
437.
641.
MEAN TOTAL N
(MG/L)
2 • 650
2.711
3.576
2.398
TOTAL P EXPORT
(KG/SO KM/YH)
30.
25.
37.
52.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME — KANOPOLIS RESERVOIR (EUTROPHIC)
COUNTY - ELLSSORTI4
STORET NO. — 2006 8ORKING PAPER NO. 516. NTIS ACCESSION NO. P8—269 838/AB
I. MURPHOMETRY
SURFACE AREA
(SQ KM)
14.31
MEAN DEPTH
(METERS)
4.5
TOTAL INFLOW
(CMS)
9 • 622
RETENTION TIME
(DAYS)
120.0
MEAN SECCHI DISC
MEDIAN
MEDIAN
MEOZAN
MEDIAN
(METERS)
TOTAL
PIMG/L)
ONT-MO
P(MG/L)
INORG
N(MG/L)
TOTAL
N(MG/L)
0.3
0.056
0 .640
1.210
LIMITING NUTRIENT AT SAMPLING TIME
4/12/74) P ( 6/27/74) P
(10/ 1/74) P
LAKE TYPE DRAINAGE AREA
(SQ KM)
IMPOUNDMENT 20349.60
Il. PHY5 C L AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
-A14(AtINITY (MGIL) CONDUCTIVITY (UMHOS)
149. 1068.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L (MG/L——DRY WI)
16.0 0.1 — 0.8 ( 2)
SUMMARY oF PHYTOPLANKTON DATA
4/12/74 6/27/74
GENERA COUNT GENERA
DACTYLOCOCCOPSI S 2563 CHL AMYDOMONAS
CENTRIC DIATOM 1955 CHROOMONAS
SKELETONEMA 12a0 ZOOSPORES
CHROOMONAS 738 CYCLOTELLA
CHRYSOPHYTAN CELLS 652 EUGLENA
OTHER 1606 OTHER
TOTAL 8714 TOTAL
I V. NUTRIENT LOADIN6 CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL 4KGFYR)
PHOSPHORUS 4ij65.
NITROGEN 15205.
B. OUTPUT
OUTLET (5)
(KG/Y 14)
PHOSPHORUS 21020.
NITROGEN 496560.
V. NON-POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(04 5)
SMOKY HILL RIVER R. 160
CLEAR CREEK 0.075
SAND CREEK 0.037
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGEO
STREAM NAME MEAN TOTAL P
(Mh/L)
ALUM CREEK 0.199
SPRING CREEK 0. 165
10/ 1/74
COUNT
GENERA
COUNT
3393
FLAGELLATES
1410
664
STEPHANODISCUS
1234
553
CHROOMONAS
529
332
CRYPTOMONAS
485
258
SKELETONEMA
264
1401
OTHER
440
6601
TOTAL
4362
POINT SOURCE POINT SOURCE
INDUSTRIAL CKG/YR) SEPTIC TANKS (KG/YR)
1 5.
495.
PERCENT LAKE SURFACE AREA LOADING RATE
RETENTION (G/SQ M/YR)
lB. 6.65
22. 44.5
NON—POINT SOURCE
(KG/YR)
90740.
623495.
TOTAL LOADING
(KG/YR)
9b62U.
639195.
DRAINAGE AREA
(-SQ 1(M)
19632.2
44.5
21.8
STREAMS
MEAN TOTAL N
(MG/L)
1.615
3. 52 8
MEAN
TOTAL P
MEAN
TOTAL N
TOTAL P
EXPORT
TOTAL
N EXPORT
(MG/L)
(MG/L)
(KG/SQ
KM/YR)
(KG/SQ
KM/VP )
0.355
2.225
4.
29.
0.163
1.706
9.
91.
0.064
1.009
3.
54.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME — MARION RESERVOIp4 (EUTROPHIC)
CULJNTY - MARION
SIORET NO. — 2007 WORKING PAPER NO. 517. NTIS ACCESSION 140. PS—269 840/AG
I. MORPHUMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAl. INFLOW RETENTION TIME
(SO XM l (59 KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 518.00 24.93 4.1 t.3l0 2.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEOIAN
At.KALINITflMG/L) CONDUCTIVITY(UMHOS (METE RS) TOTAL P(M&/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
126. 432. 0.4 0.052 0.010 0.430 1.180
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
12.4 5.R ( 4/)2/74) P ( 6/27/74) P (10/ 2/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/12/74 6/27/74 10/ 2/74
GENERA COUNT GENERA COUNT GENERA COUNT
CYCLOTELLA 30718 STEPHANODISCUS 308 CARTERIA 660
MELOSIRA 6211 MELOSIWA 308 CHROOMONAS 616
STEPHANODISC US 1310 CHROOMONAS 166 NITZSCHIA 572
SYNEORA 211 CRYPTDMONAS 142 STEPHANODISCUS 484
CRUCIGENIA 169 OOCYSTIS 95 CRYPTOMONAS 440
OTHER 297 OTHER 118 OTHER 1455
TOTAL 38916 TOTAL 1137 TOTAL 4227
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/VP) SEPTIC TANKS (KG/YR) CKG/YR) (KG/YR)
PHOSPHORUS 970. * 00* 0 0*00 0 *00*0*00* 0 9250. 10220.
NITROGEN 2905. * efl 0 00 .*0 *0 000*00*0 156720. 159625.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 2850. 72. 0.41
NIT , UGEN 52510. 67. 6.4
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLDW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO ‘ CM) (MG L) (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
NORTH COTTONdOOL) RIVER 0.850 246.6 0.212 2.498 19. 260.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
FRENCH CREEK 0.164 2.250
SILVER RIVER 0.089 1.428
PERRY RIVER 0.162 1.829

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III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (P G/L——DRY WI)
30.4 0.1
LIMITING NUTRIENT AT SAMPLING TIME
4/12/74) P ( 6/25/74) P
(10/ 1/74) P
SUMMARY
4/12/74
GENERA
CENTRIC DIATOM
MELOS IRA
CHPOOMONAS
CR YP T OH ON AS
ANN I STRODESMUS
OTHER
TOTAL 22764
IV. NUTRIENT LOADING CHARACTERISTICS
A. INPUT
POINT SOURCE
MUNICIPAL (KG/VP)
PHOSPHORUS 310.
NITROGEN 935.
H. OUTPUT
OUTLET (5)
(KG/YR)
PHOSPHORUS 846S.
NITROGEN 355240.
V. NUN—POINT-SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLO4
(CMS)
MARAIS flES CYGNES RIVER 2.830
MUD CREEK 0.128
Vi. MEAN NUTRIENT CUNCINTRATIONS IN UNGAGEO
STREAM NAME MEAN TOTAL P
(MG/L)
COAL CREEK 0.155
MUD CREE K 0.192
GENERA
MELOSIRA
PEDIASTRUM
CENTRIC DIATOM
ANA8AENA
APHAN I ZOMENON
OTHER
876 TOTAL
POINT SOURCE
SEPTIC TANKS (KG/YR)
0 *4 *40*0 *
LAKE SURFACE AREA LOADING RATE
(G/SQ M/YR)
0.79
18.0
OPAINAGE AREA
(SI) KM)
458.4
19.4
STREAMS
MEAN TOTAL N
(MG/L)
2.39S
2 • 367
COUNT
1399
392
336
224
112
223
2686
TOTAL LOADING
(KO/YR)
22085.
504400 ,
TOTAL P EXPORT TOTAL N EXPORT
(KG/SQ KM/flU (KG/SQ KM/YR)
24. S49.
24. 502.
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME — MELVERN RESERVOIR (EUTROPHIC)
COUNTY - OSAGE
STORET NO. — 2008 WORKING PAPER NO. 518, NTIS ACCESS 1ON NO. P8—269 841/AR
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA
(SQ NM)
IMPOUNDMENT 909.10
II. PHYSICAL AND CHEMICAL CHARACTFRISTICS
MEDIAN MEDIAN
ALKALiNITY (MG/U CONDUCTIVITY (UMHOS)
146. 377.
SURFACE
AREA
MEAN DEPTH
TOTAL INFLOW
RETENTION
TIME
(SQ KM)
(METERS)
(CMS)
(YEARS)
28.05
6.0
6.18o
1.1
MEAN SECCHI DISC
(METERS)
1.0
MEDIAN
TOTAL P(MG/L)
0.034
MEDIAN
ORT-HO P(MG/L)
0.007
MEDIAN
INORG N(MG/L)
0.265
MEDIAN
TOTAL N(MG/L)
0.935
10/ 1/74
COUNT
243
195
146
1 4b
97
49
OF PHYTOPLANKTUN DATA
6/25/74
COUNT GENERA
18106 CRYPTOMONAS
2495 SCHROEDERIA
927 CHROOMONAS
530 STEPhANODJSCUS
221 LEPOCINCLIS
485 OTHER
TOTAL
(LAKE)
POINT SOURCE
INDUSTRIAL (KG/YR)
*0*00*0*0*
*0*0*0*0*4
PERCENT
RETENTION
62.
30.
NON-POINT SOURCE
(KG/VR)
21775.
503465.
MEAN TOTAL P
(Mb/L)
0.137
0.191
MEAN TOTAL N
(MG/L)
2.498
2.815

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME - MILFORD RESERVOIR (EUTROPHIC)
CUUNTY — CLAY. GEARY
STORET NO. - 2009 WORKING PAPER NO. 519, NTIS ACCESSION NO. P8—269 856/AS
I. MORPHOMETRY
LAKE TYPE ORAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KR) (SQ KR) (METERS) (CMS) (DAYS)
IMPOUNDMENT 64465.10 65.51 1.8 21.193 285.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITYCMG/L) CONOUCTIVITY(UMHOS) (METEi S) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
196. 645. 0.9 0.019 0.036 0.710 1.200
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
18.9 12.6 ( 4/11/74) P ( 6/26/74) P (10/ 3/14) P
SUMMARY OF PHYTOPLANKTON DATA
4/11/74 6/26/74 10/ 3/74
GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODI5CUS 20759 CENTRIC DIATOM 284 STEPRANODISCUS 5182
CHROOMONAS 1801 ANACYSTIS(MICROCYSTIS) 236 CHROOMONAS 790
ANKISTRODESMIJS 450 SCENEDESMUS 189 SKELETONEMA 740
CRYPTOMONAS 225 CRYPTOMONAS 142 DACTYLOCOCCOPSIS 296
NITZSCHIA 135 NITZSCHIA 142 SCENEDESMUS 191
OTHER 180 OTHER 379 OTHER 395
TOTAL 23550 TOTAL 1372 TOTAL 7600
IV. NUTRIENT LOADIN6 CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL IKG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 14030. 00*00*0040 4*0*40 040* 414535. 428565.
NITROGEN 43565. 0000 0 0000 0 000000000* 2316050. 2359615.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS 68260. 89. 6.54
NITROGEN 1327935. 64 . 36.0
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) (SQ KM) (MG/L) (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YB)
REPUBLICAN RIVER 23.530 -63563.8 0.382 2.494 6. 30.
FIVE CREEKS 0.STO 179.7 0.141 1.931 30. 370.
MALL CREEK 0.263 54.0 0.286 4.421 39. 725.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
UNNAMED STREAM C—i 0.219 2.304
UNNAMED STREAM F—I 1.116 0000*0
UNNAMED STREAM (i 1 0.050 0.170

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SUMMARY
4/15/74
GENERA
A NK I ST H ODE SMUS
C HR 0 OMO N AS
ST EPH AN OD I SC US
CR VP I OM ON AS
C RUCIGENIA
OTHER
TOTAL
OF PMYTOPLANKTON DATA
6/28/74
COUNT GENERA
4186 MELOSIRA
3817 EPIPHYTES
1213 CHLAMYDOMONAS
1222 CHROOMONAS
1111 OOCYSTIS
2699 OTHER
14968 TOTAL
IV. NUTRIENT LOADING CrIARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KG/YR)
ddS.
t iSO.
PHOSPHORUS
NITROGEN
i i. OUTPUT
OUTLET (SI
(KG/YR)
PHOSPHORUS 2150.
NITROGEN 21220.
V. NON—POINT—SOURCE NUTRIENT EXPO MT
STREAM -NAME MEAN FLOW
(CMS)
PRAIRIE DOG-CPEEK 0.740
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED
STREAM NAME MEAN TOTAL P
(MC./L)
SOUTH PRAIRIE DOG CREEK 0.306
LAKE SURFACE AREA LOADING RATE
(6/SQ M/YR)
1.26
8.3
TOTAL P EXPORT TOTAL N EXPORT
(KG/SQ KM/YR) (KG/SQ KM/YR)
5. 27.
NAME — NORTON RESERVOIR
COUNTY - NORTON
STORET MO. — 2010
I. MORPHUMETRY
COMPENDIUM OF NATIONAL EUTROPH1CATIUN SURVEY LAKES IN KANSAS
(EUTROPMIC)
WORKING PAPER NO. S20 NTIS ACCESSION NO. P8—269 241/AS
LAKE TYPE DRAINAGE AREA SURFACE AREA
(SQ KM) (SQ KM)
IMPOUNDMENT 1111.60 8.86
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKAL INITYiMG/L4 CONDUCTIVITY (UMHOS)
216. 415.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (M6/L——DRY WT)
21.4 1.6
MEAN DEPTH
(METERS)
5.0
TOTAL INFLOW
(CMS)
1.018
RETENTION TIME
(YEARS)
1.8
MEAN SECCHI DISC
(METERS)
MEDIAN
TOTAL P(MG/L)
MEDIAN
ORTHO P(MG/L)
MEDIAN
INORG N(MG/L)
MEDIAN
TOTAL N(MG/L)
0.e ,
0.122
0.036
0.110
1.220
LIMITING NUTRIENT AT SAMPLING TIME
4/15/14) N ( 6/28/74) N
9/30/74
9/30/74) N
COUNT
GENERA
COUNT
11923
MERISM0pEOrA
1831
6248
SCENEDESMUS
695
5675
ANACYSTIS(MICROCYSTIS)
645
1562
CRUCIGENIA
645
1061
ANKISTRODESMUS
645
2083
OTHER
3427
28532
TOTAL
7894
POINT SOURCE
INDUSTRIAL (KG/YR)
*4*00***
*0*000*0
POINT SOURCE
SEPTIC TANKS (KG/YR)
*00*0*0*0
000*0*0000
PERCENT
RE TENT ION
15.
71.
NON—POINT SOURCE
(KG/YR)
10840.
72755.
C I I
TOTAL LOADING
(KG/YR)
11125.
73605.
DRAINAGE AREA
MEAN
TOTAL P
MEAN
TOTAi N
(SQ KM)
(M (i/L)
(MG/L)
1528.1
0.355
1.833
STREAMS
MEAN TOTAL
N
(MG/LI
2.433

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME — PERRY RESERVOIR (FUT ROPHIC)
COUNTY — JEFFERSON
STORET NO. - 2011 WORKING PAPER NO. 521. NTIS ACCESSION NO. P8—269 842/AB
I. MURPP4QMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(S Q KM) (SQ 1 (M) (METERS) (CMS) (DAYS)
IMPOUNDMENT 2893.00 49.37 3.7 13.520 281.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
.ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
166. 37 1. 0.5 0.055 0.01? 0.970 1.420
III. BIOLOG iCAL CHAi ACTERIST1CS (LAKE)
MEAN CHLOROPHYLL A AL-GAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
7.4 ( 4/12/74) P ( 6/25/74) P (10/ 2/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/12/74 6/25/74 10/ 2/74
GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODISCUS 891 CRYPTOMONAS 368 CHROOMONAS 741
CHROOMONAS 806 FLAGELLATES 221 MELOSIRA 456
MELOSIRA 806 TRACHELOMONAS 184 NITZSCHIA 456
CRYPTOMONAS 127 CHROOMONAS 147 CRYPTOMONAS 285
CHLOHOCOCCAL CELLS 127 COELASTRUM 37 SKELETONEMA 114
OTHER 338 OTHER 146 OTHER 341
C ,’
TOTAL 3095 TOTAL 1103 TOTAL 2393
IV. NUTWIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCL POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (-XG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/ f l U
PHOSPHORUS 18455. -83895. 102350.
NITROGEN 37100. * *O4*t4*4 *0*00*000 739780. 776880.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
( 1 (6/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 24850. 76. 2.01
NITROGEN 515860. 34. 15.7
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) (Mb/L) (MG/L) (KG/SO KM/YR) (KG/SQ KM/YR)
DELAWARE RIVER 9.110 1942.5 0.307 1.746 37. 44.
SLOUGH CREEK 0.650 109.8 0.122 1.363 12. 223.
LITTLE SLOUGH CREEK 0.088 47.1 0.164 1.918 10. 113.
ROCK CREEK 0.200 35.5 -0.123 1,696 22. 301.
Vi. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
BRUSH CREEK 0.071 1.577
EVANS CPEEK 0.066 0.817
FISHPOND CREEr( 0.139 2.279

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME — POMONA RESERVOIR (EUTROPHIC)
COUNTY — OSAGE
STORET NO. — 2012 WORKING PAPER NO. 522 ’ NTIS ACCESSION NO. P8—26-9 246/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TINE
(SQ 1 (M) (SQ KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 834.00 16.19 6.4 5.333 193.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITX(MGIL) GONDUCTIVITY(UMKOS) (METERS) TOTAL P(MGtt) OWTHO-P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
142. 327. 0.5 0.040 -0 .021 1.240 1.650
III. SIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TINE
(UG/L) (MG/L——DRY WT)
8.3 0.6 — 8.8 ( 2) ( 4/11/74) P ( 6/25/74) P (10/ 1/74) P
SUMMARY DF PHYTOPLANKTON DATA
4/11/74 6/25/74 10/ 1/74
GENERA COUNT GENERA COUNT GENERA COUNT
ANKISTRODESMLJS 1663 MELOSIRA 2872 MELOSIRA 184
STEPHANODISCUS 489 STEPHANODISCUS 801 CHROOMONAS 92
MELOSIRA 391 EUGLENA 94 MERISMOPEDIA 92
CrROOMONAS 342 CRYPTOMONAS 47 GLENODINIUM 46
CRYPTOMONAS 147 SCENEDESMUS 47
OTHER 50 OTHEN 0 OTHER 0
TOTAL 3082 TOTAL 3861 TOTAL 414
IV. NUTRIENT LOADING CHARACTERISTICSLAKE
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEP1I-C TANKS (KG/YRJ (I cO/YR) (KG/YR)
PHOSPHORUS 3d45. *6 *0 *400 * 12630. 15875,
NITROGEN 9230. *••°*•*••• °°°°•°°*•° 360805. 370035.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/50 M/YR)
PHOSPHORUS 13385. 16. 0.98
NITROGEN 316370. 15. 22.9
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM.MAn E MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOT*L N TOTAL P EXPOHT TOTAL N EXPORT
(CMS) (SO 1 (M) (MG/L) (M6/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
HUNDRED TEN NILE CREEK 0.460 ?7s 0.119 3.317 13. 577.
OMAGOON CREEK 1.690 295.3 0.095 2.246 13. 409.
SWITZLER CREEJ( 0.610 102.3 0.239 3.204 37. 566.
PLUMMER CREEK 0.190 31.9 0.061 1.802 11. 350.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME - TORONTO RESERVOIR (FUTROPHIC)
COUNTY — GREENWOOD. W000SON
STORET NO. — 2013 WORKING PAPER NO. 523, NTIS ACCESSiON NO. P8—269 467/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SO s cM) (METERS) (CNS) (DAYS)
IMPOUNOMENT 1934.70 11.33 2.5 14.720 22.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
AL-KALINITY(MG/L) CONDUCTIViTY UJMMOS) (METERS) 4OTAL P(MG/L) ORTIIOP (NG/L) INORG N(MG/L) TOTAL NIMG/L)
122. 327. 0.3 0.067 0.011 0.425 0.675
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD L!MITIN6 NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY UT)
6.6 3.6 — 5.1 ( 2) ( 4/10/74) P ( 6/24/74) NO DATA (10/ 2/74) p
SUMMARY OF PSIYTOPLANKTON DATA
4/10/74 6/24/74 10/ 2/14
GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODISCUS 2355 CRYPTOMONAS S5 ANABA(NA 103
CRYPTOMONAS 449 CHROOMONAS 255 CRYPTOMONAS 103
CHROOMONAS 393 MELOSIRA 127 CIIROONONAS 69
MELOSIRA 336 STEPHANODISCUS 42 MELOSIRA 69
ANKISTRODESNUS 168 CHLAMYDOMONAS 34
OTHER 0 OTHER 0 OTHER 139
TOTAL 3701 TOTAL 679 TOTAL 517
IV. NUTRIENT LOADING CHARACTEPISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL IKG/YR) SEPTIC TANKS (KG/YRI tKG/YR) (KG/YR)
PHOSPHORUS 2290. 15. 23300. 25605.
NITROGEN 6875.. 65. 629325. 636765.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KO/YN) RETENTION (G/SQ M/YR)
PHOSPHORUS 35940. LOSS 2.26
NITROGEN 661285. LOSS 56.2
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) (SQ KM) (MG/U (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
VERDIGRIS RIVER 5.790 795.1 0.053 1.262 10. 280.
WALNur CREEK 2.630 331.5 0.068 1.234 14. 346.
wEST CREEK 2.420 305.6 0.058 1.305 12. 360.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNG# EO STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/ I .) (MG/L)
DRY CHEEK 0.053 1.092

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME — TUTTLE CREEK RESERVOIR (FUTROPHIC)
COUNTY — MAWSHALL. POITAWATOMIE . RILEY
STORET NO. — 2014 wORKING PAPER NO. 524. NTIS ACCESSION NO, P8—269 252/AS
I. MORPPIOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SO KH) ( METERS) (CMS) WAYS)
IMPOUNDMENT 24961.60 63.94 8.2 54 .748 139.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MED iAN MEDIAN MEDIAN MEDIAN
AUcAL-4NITX(MG/L) CONDUCTIVITYuMHOS) (METERS) TOTAL P(MG/L) ORTHO PcMG/L) INOP6 NIMGIL) TOTAL N(MG/L)
197. 48 7. 0.8 0.162 0.067 0 .970 1.460
III. A IOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING ‘lIME
(UG/L) (MG/L——DRY WT)
11.3 ( 4/11/74) N ( 6/25/74) NO DATA (10/ 2/74) P AND N
SUMMARY OF PHYTOPLANKTON DATA
4/ 1 1 1-74 6/25/74 10/ 2/74
GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODISCUS 10947 STEPHANODISCUS 1703 NITZSCHIA 1641
CHROOMONAS 2238 CHROOMONAS 183 STEPHANOOISCIJS 1452
CRYPTOMONAS 241 MELOSIRA 61 FLAGELLATES 284
ANKISTRODESMUS 181 CRYPTOHONAS 30 SKELETONEMA 189
NITZSCHIA 60 EUGLENA 30 CHROOMONAS 158
OTHER 62 OTHER 76 OTHER 95
C/t
TOTAL 13129 TOTAL 2083 TOTAL 3819
IV. NUTRIENT LOADING CHARACTEHISTICSLAKE
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) IKG/YR)
PHOSPJ IORU5 12870. 1411435. 1424305.
NITROGF I iJ 43220. 7683290. 1726510.
8. OUTPUT
OUTL’ET(S) PERCENT LAKE-SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SO M/YR)
PHOSPHORUS 229125. 84. 22.28
NITROGEN 4192595. 46. 120.8
V. NON—POINT—SOURCE NUTRIENT EXPORT
-STREAM NAME MEAN FLOW ORAINAGE AREA MEAN TOTAL P ME’AN TOT-AL N TOTAL P EXPORT TOTAL N EXPORT
(CHS) (SO KM) (MG/L) (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
BIG BLUE RIVER 2 .270 12372.4 0.147 4.086 70. 346.
OTTER CREEK 0.190 57.0 0.106 1.644 13. 182.
-WEST FANCY CREEK O.R00 271.9 0.164 2.1-12 15. 266.
NORTH FORK FANCY CREEK 0.280 93.0 0.166 2.549 15. 249.
COON CREEK 0.810 255.4 0.218 2.910 14. 875.
LITTLE PLUE -RIVER 18.580 8609.2 0.635 -2.996 Sb. 251.
ROBIDOUX CREEK 0.960 303.0 0.305 2.627 29. 402.
BLACK VENMILLION RIvER 2.510 735.6 0.235 2.540 23. 288.
CLEAR FORK 0.310 115.5 0.113 1.991 11. 204.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGEU STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)

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MCINTIRE CWEEK 0.075 2.548
CORNOODGER CREEI( 0.067 1.883
CEDAR CREEK 0.040 0.868
HILL CREEK 0.126 2.067
SPRING CREEK 0.194 2.3R3

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN KANSAS
NAME — WILSON RESERVOIM (ME SOII4OPHIC)
COUNTY — RUSSELL
STORET NO. — 2015 WORKING PAPER NO. 525, NTIS ACCESSION NO. PB—_269 837/48
I. MORPrtOM TRy
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ KM) (METERS) (CMS) (YEARS)
IMPOUNDMEr T 4965.00 36.42 8.4 5.144 2.8
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY94G/L) CONDUCTIVITY(UMHOS.) (METERS) TOTAL P1MG/i) ORiMO P(MG/L) INORO N(MG/L) TOTAL N(Mra/L)
140. 224. 1.4 0.023 0.004 0.265 0.835
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL. YIELO LIMITINb NUTRIENT AT SAMPLING TIME
lUG/Li (MG/L——ORY WT)
0.1 I 4/12/74) P 1 6/26/74) NO DATA (10/ 1/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/12/74 6/-26/74 10/ -b’74
GENERA COUNT GENERA COUNT GENERA COUNT
SYNEDRA 3438 CHROOMONAS 575 STEPHANODISCUS 1847
CHROOMONAS 1413 CRYPTOMONAS 157 OSCILLATORIA 1203
STEPHANODISCUS 1130 OOCYSTIS 52 SYNEDRA 601
OOCYSTIS 10A3 SPHAE OCY5T1S 52 OOCThTIS 258
ANKISTRODESMUS 659 DACTYLOCOCCOPSIS 129
OTHER 1460 OTHER 0 OTHER 516
TOTAL 9183 TOTAL 1336 TOT-AL 4554
IV. NUTRIENT LOADING CHARACIERISTICS(LAKE)
A. INPUT
POINT SOURCE P-OINT SOURCE PU-I-NT SOURCE NON—POINT SOURCE TOTAL t.OADING
MUNICIPAL IKG/YR ) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KGIYR) (l G/Vf4)
PHOSPHORUS 37 5. 1i340. 17135.
NITROG€N UJMS. 278660. -290045,
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE ARE-A LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 5065. 70. 0.47
NITROGEN 160140. 45. 8.0
V. NON—POINT—SOURCE NUTRIENT EXPORT
- TREAM-4lA$E MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAtl OTAL N TOTAL P E*PORT TOTAL N EXPORT
(CMS) (SQ K’4) (MG/U (MG/L) (KG/SQ K14/YR) (KG/SiJ KM/YR)
SALINE RiVER 3.440 3890.2 0.099 -1.238 3. 35.
CEDAR CREEK 0.074 71.0 0.055 2.121 2. 70.
PARADISE CRE-EK 0.600 595.1 0.1H9 2.207 0.1 52.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
NAME — ANACOCO LAKE (MESOTROPHIC)
COUNTY - VERNON
STORET NO. — 2201 WORKING PAPER NO. 528. NTIS ACCESSION NO. P8-210 018/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(50 KM) (SO s cM) (METERS ) (CMS) (DAYS)
IMPOUNDMENT 53R.70 10.52 2.8 7.540 45.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
14. 37. 1.1 0.031 0.007 0.080 0.545
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY wfl
8.7 0.1 — 1.3 ( 2) ( 3/20/74) N ( 5/30/74) N (11/ 8/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/20/74 5/30/74 11/ 8/74
GENERA COUNT GENERA COUNT GENERA COUNT
ANKISTRODESMUS 2270 ASTERIONELLA 1554 FLAGELLATES 863
FLAGELLATES 1027 MELOSIRA 106 TABELLARIA 609
MELOSIRA 865 MERISMOPEDIA 51$ CRYPTOMONAS 355
ANACYSTIS(MICROCYSTIS) 540 CYCLOTELLA 377 CENTRIC DIATOM 304
CRUCIGENIA 324 CRYPTOMONAS 330 ANKISTRODESMUS 203
OTHER 1514 OTHER 1648 OTHER 863
TOTAL 6540 TOTAL 5133 TOTAL 3197
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YP) INDUSTRIAL (EG/YR) SEPTIC TANKS (KG/YR) (KG/T M) (KG/YR)
PHOSPHOkUS **t 0 4 00 0 00 25. 6415. 6440.
NITROGEN *0000*0*0 °° 0°°°°•°• 905. 162690. 163595.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ 14/YR)
PHOSPHORUS 7805. LOSS 0.61
NITROGEN 250740. LOSS 15.6 -
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) (SQ KM) (MG/L) (MG/L) (KG/SQ KM/YM) (KG/SQ KM/YB)
BAYOU ANACOCO 4.140 295.3 0.022 0.610 10. 248.
CANEY CREEK 0.250 18.1 0.022 0.690 10. 320.
SANDY CREEK 0.570 40.9 0.027 0 .775 11. 363.
PRAIRIE CREEK 1.610 115.0 0.038 0.765 16. 344.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
JORDAN CREEK 0.018 0.543
WYATT CREEK 0.118 0.5S7

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES iN LOUSIANA
NAME — LAKE fr$ISTINEALJ (EUTROPHIC)
COUNTY — BIENVILLE. BOSSIER. WEBSTER
STORET NO. — 2203 WORKING PAPER NO. 529 , NTIS ACCESSION NO. P8—269 229/AS
1. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(S Q KM) (SQ cM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 3752.90 69.67 2.1 41.200 42.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
-ALLALINITYIc4G/L) CONDUCTIVITY WMHOS) (METERS) TOTAL P(MG/L—) _ORTHO-*CMG/L INORG N(MG/L) TOTAL N(MG/L)
10. 111. 1.1 0.061 0.018 0.100 0.650
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SANPt.ING TIME
(UG/L) (Mt3/L——DRY WT)
12.9 3.5 ( 3/21/74) N ( 5/31/741 N (11/11/74-1 N
SUMMARY OF PHYTOPLANKTON DATA
3/21/74 5/31/74 11/11774
GENERA COUNT GENERA COUNT GENE-HA COUNT
MELOSIRA 865 FLAGELLATES 1163 FLAGELLATES 560
FLAGELLATES 595 MELOSIRA 862 CRYPTOMONAS 252
DACTYLOCOCCOPSIS 433 CRYPTOMDNAS 431 MELOSIRA 140
SYNEOWA 325 DACTYLOCOCCOPSIS 215 CENTRIC Di-ATOM 56
CRYPTOMONAS 324 LYNGBYA 172 TRACHELOMONAS 28
OTHER 921 OTHER 1414 OTHER 140
0,
TOTAL 3463 TOTAL 4257 TOTAL 1176
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE -lION—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHOR uS 28100. 0*0000*0* 460. 87515. 116075.
NITROGEN 77685. 17360. 995825. 1090870.
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 6338 . 45. 1.67
NITROGEN 878300. 19. 15.7
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM JIAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P -MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (S I) ( (H) (MG/Li (MG/I.) (KG/SQ KM/YR) (KG/SQ KM/YR)
CLARKE RAYOU 3.150 279.7 0.096 0.-8S8 30. d71.
SUONE CREEK 0.580 51.5 0.278 1-.667 99. 580.
BAYOU DORCHEAT 31.950 2934.5 0.081 0. 164 21. 242.
HRUSHY CREEK 1.270 111.9 0.069 0.742 25. 275.
TOULON BAYOU 0. 490 42.7 0.052 0i648 19. 203.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
SIREAM NAME MEAN TOTAL P MEAN TOTAL N
CHG/L) (MG/L)
COOLEY CPEEK 0.039 0.666

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III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(u6/L) (MG/L——DRY wfl
17.8 4.1
LIMITING NUTRIENT AT SAMPLING TIME
3/23/14) N ( 6/ 3/14) N
8/26/74) N
(11111/74) N
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIAMA
NAME — RLACI( bAYOU RESERVOIR (EUTROPI.IIC)
COUNTY — rADDO
STORET NO. — 2204 wORKING PAPER NO. 530. NTIS ACCESSION NO. P8—269 416/AS
I. MORPHOMFTTRY
LAKE TYPE DRAINAGE AREA
(SO KU)
IMPOUNDMENT 608.60
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEOTAN MEDIAN
ALKALINIT Y(MGs’L) -CONDUCTIVITY (UMMOS)
in. 167.
SURFACE AREA
(SU KM)
16.06
MEAN DEPT.-4
(METERS)
l.A
TOTAL INFLOW
(CMS)
6.940
RETENTION TIME
(DAYS)
37.0
MEAN SECCHI DISC
(METERS)
1.2
MEDIAN
TOTAL P(MG/L)
0.046
MEDIAN
ORTHO P(M6/L-)
0.009
MEDIAN
INORG N(M6/L)
0.090
MEDIAN
TOTAL N(NG/L)
0.630
8/26/14
11/11/14
COUNT
GENERA
COUNT
GENERA
COUNT
4802
CENTRIC DIATOM
2007
CRYPTOMONAS
220
2036
ANKISTRODESMUS
618
DACTYLOCOCCOPSIS
147
1200
LYNGBYA
618
EUGLENA
110
626
ANABAENA
463
USC ILLATORIA
37
418
CRYPTOMONAS
386
PMACUS
37
1982
OTHER
2973
OTHER
0
11064
TOTAL
7065
TOTAL
551
SUMMARY OF PMYTOPLANKTON DATA
3/22/14 6/ 3/14
GE-NEHA COUNT GENERA
OACTYLOCOrrOPSIS 611 ASTERIONELLA
CRYP IOMONAS 500 APHAPIUTHECE
DINO p IRYON 445 FLAGELLATES
FLAGELLATFS 445 ANKISTRODESMUS
OSCILLATORTA 222 MELOSIRA
OTHER 223 OTHER
TOTAL 2446 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICSILAKE)
A. INPUT
POINT SOURCE POINT SOURCE
MUNICIPAL (KG/Yin INDUSTRIAL (KG/Yin
PHOSPHORUS 3175.
NITROGEN SITS.
B. OUTPUT
PHOSPHORUS
NITROGEN
V. NON—POINT—SOURCE
STREAM NAME
BLACK RAY OU
STATE LINE CREEK
GRAY BRANCH
VI. MFAN NUTPTFNT COt CENTR4TIONS IN IJNGAGEt.) STREAMS
STREAM NAMF MEAN TOTAL P MEAN TOTAL N
(MG/LI (M6/L )
UNNAMED STREAM MI * 3.702 12.467
MYRTIS CQFErc 0.074 1.035
MORSF CPFFK 0.037 o.o92
POINT SOURCE
SEPTIC TANKS IKG/YR)
30.
1120.
PERCENT
RETENTION
54.
21.
OUTLET(S)
(K&/YR)
798b.
170090.
NUTRIENT EXPORT
MEAN FLOW
(CMS)
3.370
. S 0
0. i o
NONPOINT SOURCE
( 1 16/YR )
14010.
205810.
LAKE SURFACE AREA LOADING RATE
(G/SO M/YR)
1.07
13.5
TOTAL LOADING
(KG/YR)
17215.
21010b.
DRAINAGE AREA
(50 KM)
2Q5.3
139.6
16. 1
MEAN TOTAL P
MEAN
TOTAL N
TOTAL
P
EXPORT
TOTAL
N EXPORT
(T IG/L)
(MG/L)
(KG/SO KM/YR)
(KG/SQ KM/YR)
0.073
0.932
23.
. 306.
0.078
0.874
26.
342.
0.04O
0.904
14.
.310.
* BELOW POINT SOURCE.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
NAME — BLACK LAKE (EUTROPHIC)
COUNTY — NATCHIrUCHES, RED RIVER
STORET NO. - 22)9 WORKING PAPER NO. 531 , NTIS ACCESSION NO. P8—269 4TO/A8
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SO KM) (METERS) (CMS) (YEARS)
NATURAL 52.24 2.6 00*040
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC ME-DIAN MEDIAN MEDIAN MEDIAN
AI.MALINITY(MG/L) CONDUCTIVITY(UMMOS-) (METERS) TUTAL R(MCiIL1 OWT$OP(MG/L1 INORG N(-MG/L-) TOTAL N(MO/L)
10. 125. 1.2 0.077 0.015 0.150 0.620
III. BIULOGZGAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALUAL ASSAY CONTROL YIELD LIMITING NUIRIENT AT SAMPLING -TIME
(UG/L) (MG/I——DRY WT)
12.7 40*4*44044 ( 5/30/74) P ( 6/23/74) N
SUMMARY OF PHYTOPLANKTUN DATA
5/30/74 8/23/74
GENERA COUNT GENERA COUNT
FLAGELLATES 1199 LYNGBYA 9900
KJp4CHNERIELLA 1133 DACTYLOCOCCOPSIS 2903
ATTHEYA 1066 ANAAAENOPSIS 1340
BLUE—GREEN FILAMENT 799 APHANOTHECE 670
CRYPTOMONAS 666 SPERMATOZOOPSIS 670
OTHER 5131 OTHER 3420
TOTAL 9994 TOTAL 1a903 a
IV. NUTRIENT LOADIN(, CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KE/YR) INDUST-PIAL (KG/YA) SEPTIC TANKS (KG/YR) (K6/YR) (KG/YR)
PHOSPWORIJS 4400044440 4040040400
NITROGEN 4*444*444* -4*44444444 .*•*.*flts 444*44444*
A. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PMOSPHOPUS 4*444*0*0* 4*40* *4*4000*04
NITROGFN *0404*4404 -44*44 4*4*0*40*4
*4* 0 LAKE SAMPLING ONLY 4004

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
NAME — RRUIN LAKE (EUTROPHIC)
COUNTY — TENSAS
STORET NO. — 2202 WORKING PAPER NO. 532. NTIS ACCESSION NO. P8—269 260/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO Kill (SO CM) (METERS) (CMS) (YEARS)
NATUWAL 0000*0*000 9.48 9.1 0 * 0 0 * 0 * 0 * *04*00
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHO5) (METERS) TOTAL P(HG/L) OUT-HO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
92. 1b8. 1.3 0.051 0.012 0 .250 0.780
III. BiOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHL-OROPHYLa A ALGAL ASSAY CONTROL YIELO LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY wfl
- 16.4 3.6 ( 3/19/74) P ( 5/30/74) N (11/11/74) P
SUMMARY UF PHYTOPLANKTON DATA
3/19/74 5/30/74 11/11/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 1189 DACTYLOCOCCOPSIS 24829 DACTYLOCOCCOPSIS 4945
CRYPTOMONAS 743 NITZSCHIA 13770 OSCILLATORIA 2448
DACTYLOCOCCOPSIS 520 ANABAENOPSIS 3882 FLAGELLATES 832
ANKISTHODESMUS 297 OSCILLATORIA 2271 NITZSCHIA 735
MICRACTINIUM 297 MELOSIRA 1977 CRYPTOMONAS 685
OTHER 1191 OTHER 5b40 OTHER 4064
TOTAL 4237 TOTAL 52369 TOTAL 13709
11. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON-POINT SOURCE TOTAL LOADING
MUNICIPAL (1CG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (I(G/YR) (KG/YR)
PHOSPHORUS *0*00*0 0*4 oooo.ooo. oooo.oono - one .. ., .. *00 000 000 4
NITROGEN 0*0*0*0*0* *0*00*0*0* 000o0**.** ....t..... 0 0 0 0 0 0t 0 00
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS *0*00*000* * *0*0 00*0*00*00
NITROGEN 0 40 0Q 0 0 0 0 0 *0*00 000*0 *0*0*
*04* LAKE SAMPLING ONLY *00*

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
NAME — BUNDICK LAl E (EUTROPHIC)
CUUNIY — REAUREGARO
STORET NO. — 2205 WORKING PAPER NO. 533. NTIS ACCESSION NO. P8—269 8-39/AB
I. MORPI’OMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN OEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SQ KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 546.50 1.07 1.6 7.300 15.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI 01-SC MED I aN - 4 IEO 1AN -MEDIAN MEDIAN
A I3cALINITY(,4r,IL I ‘CDNDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) -ORThO P(MG/L) INORG N(MGs’L) TOTAL N(M(5/L)
11. 59. 0.8 0.157 0.073 0.135 0.820
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT U SAMPLING TIME
(UG/L) (MG/I--DRY WT)
20.5 7.3 — 8.0 ( 2) ( 3120/74) N ( 5/30/243 -N (11/12/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/20/14 5/30/14 11/12/14
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 8775 MELOSIRA 3719 DACTYLOCOCCOPSIS 533
CRYPTOMONAS 1051 KIRCHNERIELLA 1438 MELOSIRA 374
TRACMELOMONA5 526 CHLAMYDDMONAS 967 CYCLOTELLA 373
APHANOCAPSA 283 CRYPTOMONAS 694 SCENEDESMUS 373
CRUC I 6ENIA 283 ANACYSTIS(M ICROCYSTIS) 545 KIRCHNERIELLA 320
OTHER 1982 OTHER 4810 OTHER 959
0,
TOTAL 12900 TOTAL 12173 TOTAL 2932
IV. NUTRIENT LOADING CHAPACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE P01-NT SOURCE NDN—POI.NT SOURCE TOTAL LOADING
MUNICIPAL IKG/YR) INDUSTRIAL (KG/YR) -SEPTI-C TANKS 4KG/YR) (K S YYR) (KG/YR)
PHOSPHORUS 14d75. S. 38745, 53025.
NITROGEN 38320. 20. 213615. 251955.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 31130. 41. 7.50
NITROGEN 26407S. LOSS 35.6
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NaME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN 1OTAL N TOTAL P EXPORT TOTAL N-EXPORT
(CMS ) (S Q KM (MGZL-3 (MG/L) (KG/SQ KM/YR) (Kb/SQ KM/YR)
BUNOICK CREEK 4.150 310.8 0.398 lfl9S 79. 392.
ØALMETTO CREEK 0.610 45.6 0.293 1.226 122. b37.
DEER CREEK 0.590 44.5 0.113 0.771 47. 325.
DRY CREEK 0.150 11.3 0.093 1.087 47.° 325.°
ESTIMATEO

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
NAME — COCODRIE LAKE (EUTROPHIC)
COUNTY — CONCORDIA
STORET NO. — 2207 WORKING PAPER NO. 534, NTIS ACCESSION NO. P8—269 493/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(S Q KM) (SO ( cM) (METERS) (CMS) (YEARS)
NATURAL •t*tootot 3.99 4.9 •ttO*t**tt
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/LJ CONDUCTIVITY(UMMOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
56. 141. 0.5 0.090 0.026 0.400 0.995
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (ROlL——DRY WT)
35.3 7.1 I 3/19/74) N ( 5/29/74) P
SUMMARY OF PHYTOPLANKTON DATA
3/1917 4 5/29/74
GENERA COUNT GENERA COUNT
FLAGELLATES 2134 CYCLOTELLA 659 5
MERISMOPEDIA 459 STEPHANODISCUS 2721
NITZSCHIA 459 MELOSIRA 2593
ANACYSTIS(MICROCYSTIS) 306 FLAGELLATES 1729
ANKISTRODESMUS 268 PENNATE DIATOMS 1121
OTHER 431 OTHER 2402
TOTAL 4057 TOTAL 17161
IV. NUTRIENT LOAOING CHAPACTERISTICS(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/TM)
PHOSPHORUS 0 0 00 00 000 0 *04*0*0*0* 40 0 040 00 4 0 0000 0 40 4t *fl 04 0 44 40
NITROGEN 0 0 0 00 0 0 4 0 0 ..e 000n.. •*.•oo.••• •ene•**ee
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE.
(KGIYR) RETENTION (6/SO M/YR)
PHOSPHORUS * 0*00* 0* 0000 4 0*0*00* 40*
NITROGEN 0*00*0*0* 00 00 0 000000*0*0
0* 0* LAKE SAMPL 1NG ONLY *0*0

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COMPENDIUM OF NATIONAL FUTROPhICATION SURVEY LAKES IN LOUSIANA
NAME — COCODRIE LAKE
COUNTY — RAPIDES
STORET NO. — 2220
(EUTROPHIC)
WORKING PAPER NO. 535, NTIS ACCESSION NO. P6—269 471/Ab
I. MORPHOMETRY
LAKE TYPE DRAINAGE ARE a
(SO KM)
NATURAL 621.40
SURFACE AREA
(S Q KM)
24.68
MEAN DEPTH
(METERS)
0.5
TOTAL INFLOW
(CMS)
9.660
RETENTION TIME
(DAYS)
14.0
III. HIULOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL YIELD
(UG/L) (P4G/L——DRY WT)
33.4 l.
5/29/74
5UMMARY DF PHYTDPLANKTON DATA
11/12/14
C,
PHOSPHORUS
NI TRO$FN
8. OUTPUT
PHOSPHORUS
NITROGEN
POINT SOURCE
MUNICIPAL (KG/VP)
0 *0 0 *0 * 000
OUTLET CS)
(KG/VP)
13015.
186195.
POINT SOURCE
INDUSTRIAL (KG/YR)
*000 0040**
00000000*0
PERCENT
RETENTION
i i.
LOSS
POINT SOURCE
SEPTIC TANKS (KG/YR)
30.
1065.
NON-POINT SOURCE
(KG/YR)
14655.
119370.
TOTAL LOADING
(KG / IA)
14685.
180435.
vi. r’ILAN NUTRIENT CONCENTPATIONS IN UNGAGED STREAMS
S1REAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (Mt ,/L)
HURRICANE CREEK 0.061 0.438
LITTLE SPRING CREEK O.3d4 1.893
11. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN
MEDIAN MEAN SECCH1
-DISC
MEDIAN
MEDIAN
MED iAN
MEDIAN
AUt4LINITt—1M6/L--)
CONDULTIVITY(UMHOS)
(METE-PS)
TOTAL P(MG/L)
OMTMO— (MG/L)
INORG N(MG/L)
TOTAL N(MG/L)
82.
162.
0.5
0.106
—0.014
0.050
0.820
LIMItING NUTRIENT AT SAMPLING TIME
5/29/14) N (11/12/74-) N
GENERA
COUNT
GENERA
COUNT
FLAGELLATES
1592
LYNGHYA
11947
DACTYLOCOCCOPSIS
1493
DACTYLOCOCCOPSIS
650 5
SYNEDRA
1393
NITZSCHIA
4075
CRYPT OMDNAS
1294
MELOSIRA
2508
CENTRIC DIATOM
89a
ANACYSTIS(MICROCYSTIS)
940
OTHER
3481
OTHER
6348
TO1AL
10149
TOTAL
38323
1”. NUTRIENT LOADINb CHARACTERISTICS(LAKE)
A. INPUT
LAKE -SURFACE AREA LOADING RATE
(G/SQ -M/YR)
0.60
7.3
V. NON—ROINT—SOURCE NUTRIENT EXPORT
STREAM NAME
MEAN FLOW
(CMS)
DRAINAGE AREA
(SO KM)
MEAN TOTAL P
(MG/Li
ME-AN TOT-AL N
(V IG IL)
TOTAL P EXVORT
(KG/SO KM/VA)
tOTAL N -EXPORT
(KG/Sf) KM/YR)
COCDDRIE AAYOU
2.’ ,6O
186.7
0.088
-0.151
36.
343.
SPRINO CREEK
2.440
111.1
0.033
-0.444
14.
191.

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NAME — LAKE CONCOWDIA
COUNTY — CONCOROZA
STORET NO. — 2209
I. MORPHOMETRY
LAKE TYPE
NATURAL
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/I) CONDUCTIVITY (UMHOS)
147. 297.
III. BIOLOGICAL CHARACTERISTICS LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WT)
33.0 2.8 — 7.2 ( 2)
OF PHYTOPLANKTON DATA
5/30/74
GENERA COUNT GENERA
MELOSIRA .36811 DACTYLOCOCCOPSIS
DACTYLOCOCCOPSIS 2271 NITZSCHIA
CYCLOTELLA 841 MERISMOPEDIA
FLAGELLATES 373 FLAGELLATES
CRYPTOMONAS 313 ANARAENOPSIS
OTHER 1288 OTHER
TOTAL 41963 TOTAL
IV. NUTRIENT LOADING CHAPAC ILRISTICS(LAIcE
A. INPUT
POINT SOURCE
MUNICIPAL (KG/YR)
C 0 * 0 *0*00*
OUTLET (5)
(KG/YR)
* 0* *0* * 0* 0
0*0*0*00*
PHOSPHORUS
NI TROGEN
POINT SOURCE
SEPTIC TANKS (KG/YR)
0*0*0* 0*00
LAKE SURFACE AREA LOADING RATE
(G/SQ M/YR)
*0*00*0*0
*0*0*0*00*
COMPENOTUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
(EUTROPHIC)
WORKING PAPER NO. 536. NTIS ACCESSION NO. P8—269 494/AS
DRAINAGE AREA
(SO KM)
0*0*0*00*0
SURFACE AREA
(S Q ( (H)
4.25
MEAN DEPTH
(METERS)
6.1
TOTAL INFLOW
(CMS)
*0*00*0*0*
MEAN SECCHI DISC
(METERS )
0.8
MEDIAN
TOTAL P(MG/L)
0.016
S UM M A WY
3/19/74
RETENTION TIME
(YEARS)
0*00*0
MEDIAN
INORG N(MG/L)
0.080
MEDIAN
ORTHO P(MG/L)
0.009
LIMITING NUTRIENT AT SAMPLING TIME
3/19/74) N ( 5/30/74) N (11/11/74) N
MEDIAN
TOTAL N(MG/L)
0 • 820
11/11/74
COUNT
GENERA
COUNT
3889
DACTYLOCOCCOPSIS
11286
2608
CYCLOTELLA
3587
2150
MELOSIRA
2678
2105
CRYPTOMONAS
1099
1098
OSCILLATORIA
1005
5079
OTHER
1578
16929
TOTAL
21233
PHOSPHORUS
NITROGEN
B. OUTPUT
POINT SOURCE
INDUSTRIAL (KG/YR)
* 0 0* *0* *0*
* 00*00* *00
PERCENT
RETENT ION
*0*0*
* *00*
NON—POINT SOURCE
(KG/YR)
000 00 00*0*
*0*000*0*0
TOTAL LOADING
(KG/YR)
0000000 00
*00* LAKE SAMPLING ONLY 0*0*

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
NAME — COTILE RESERVOIR (MESO—EUTROPHIC)
COUNTY — RAPIOES
STORET NO. — 2208 WORKING PAPER NO. 537, NTIS ACCESSION NO. P8—270 064/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (S Q KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 104.60 7.25 4.3 1.700 206.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN —I4FAN SECCHI DISC MEDI-AN MEOIAN MEDIAN MEDIAN
-ALKALINITY(sqG/L4 CONDUCTIVITYcUMNOS) (METERS) TOTAL P(MG/Li ORTHO P(MG/t) INORG N(MG/L) TOTAL N(MG/L)
14. 42. 1.5 0.037 0.011 0.100 0.520
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLiNG TIME
(06/U (MG/L——DRY JT)
12.6 0.3 ( 3/20/14) -N ( 5/30/14)- N (11/12/74) N
SUMMARY OF PF4YTOPLANKTON DATA
3/20/14 5/30/74 11/12/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 3220 DACTYLOCOCCOPSIS 634 MERISMDPEDIA 1300
CRYPTOMONAS 887 CYCLOTELLA 493 FLAGELLATES 917
FLAGELLATES 794 CRYPTOMONAS 423 ANACYSTIS(MICROCYSTIS) 917
MERISMOPEDIA 700 ASTERIONELLA 352 KIRCHNERIELLA 841
ANKISTRODESMUS 607 ANACYSTIS(MICROCY5TIS) 352 APMANQCAPSA 459
OTHER 3080 OTHER 1760 OTHER 1991
TOTAL 9288 TOTAL 4014 TOTAL 6425
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTR!AL (KG/YR) SEPTIC TANKS (KG/YR) (KG/VP) (KG/-IN)
PHOSPHORUS 000*0040* 5. 3380. 3385.
NITROGEN *0*4*0 40*4 *400*004* 105. 32420. 32525.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENT1ON (6/SQ M/YR)
PHOSPHORUS 4150. LOSS 0.47
NITROGEN 4511 . LOSS 4.5
V. NON—POINT—SOURCE NUTRIENT EXPORT
SIREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO 1(M) (MG/U (MG/L) (KG/SQ KM/IN) (KG/SQ KM/YR)
DYER CREEK 0.110 8.1 0.076 0.522 29. 194.
HEMPHILL CREEK 0.370 22.1 0.07 1 0.580 37. 301.
INDIAN CREEK 0.220 13.3 0.0b9 0.635 32. 239.

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COMPENDIUM OF NATIONAL EUTROPHICAI ION SURVEY LAKES IN LOUSIANA
NAME — CROSS LAIcE (FUTROPHIC)
COUNTY — CA000
STORET NO. — 2210 WORKING PAPER NO. 538. NTIS ACCESSION NO. P8—270 052/48
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL 1NFLO RETENTION TIME
(50 Kh() (SQ 1cM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 655.30 35.77 2.7 4.870 180.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALIcALINITY(MG/L) CONDUCTIVITY(UMI-IOS) (METERS) TOTAL P(MG/L) ORTP4O P(MG/L) INOPG N(MG/L) TOTAL N(MG/L)
21. 185. 0.6 0.057 0.010 0.080 0.830
III. BIOLOGICAL CHAI ACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WI)
1.0 — 4.1 ( 3) ( 3/23/74) P AND N ( 6/ 3/74) P4 ( 8/26/74) N (11/11/74) N
SUMMARY OF PHYTOPLANKTDN DATA
3/ , 3/74 6/ 3/74 8/26/74 11/11/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 8560 ANABAENOPSIS 22203 ANABAENOPSIS 180343 DACTYL.OCOCCOPSIS 4566
PENNATE DIATOMS 1863 RAPHIOZOPSIS 3021 RAPHIDIOPSIS 20210 ANKISTRODESMUS 4206
ANACYSTIS(MICROCYSTIS) 1514 CHROOCOCCUS 2491 MERISMOPEDIA 3042 ANACYSTIS(NICROCYSTIS) 3091
LUNATE CELLS 1398 LYNGBYA 2279 OSCILLATORIA 1817 CHROOCOCCUS 2445
ANKISTRODESMUS 1165 AP4ARAENA 1749 FLAGELLATES 1095 MERISMOPEDIA 1007
OTHER 5415 OTHER 11829 OTHER 6863 OTHER 5500
TOTAL 19915 TOTAL 43572 TOTAL 213310 TOTAL 20815
IV. NUTRIENT LOADING CHARACTERISTICS(LAK€.)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (IcG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YB) (KG/YB)
PHOSPHORUS 1770. 105. 10200. 12075.
NITROGEN 5670. 3905. 156375. 165950.
(4. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS 11965. 1. 0.34
NITROGEN 167780. LOSS 4.6
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) (SQ 1cM) (MG/L) CMG/L) (KG/SQ ,cM/YR) (KG/SU KM/YB)
CROSS BAYOU 0.990 132.9 0.135 0.889 13. 168.
PA PAW BAYOU 1.540 208.5 0.066 0.748 15. 183.
SHETTLEWORTH BAYOU 0.190 25.S 0.065 0.772 10. 178.
LOGAN BAYOU 0.370 48.7 0.105 0.988 23. 240.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/I)
PINEY BAYOU 0.068 0.944
AQUEDUCT 0.125 0.869
UNNAMED STREAM Hi 0.333 1.580

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
NAME — BAYOU D’ARRONNE LAKE ME SO—EUTROPHIC
COUNTY — UNIONS LINCOLN
STORET NO. — 2211 WORKING PAPER NO. 539, NTIS ACCESSION NO. P8—270 035/AB
I. MORPPIOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ ((H) (SQ KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 4162.10 61.64 2.6 49.790 36.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
-ALKAt.INITYIMG/L) _.CONDUCTIVITY(UMHOS) (METERS) TOTAL P-U4G/L) ORTHO-P-IMG/L) INORG N(14G/L) TOTAL N(MG/L)
10. 88. 1.1 0.038 0.011 0.100 0.460
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMI-IING NUTRIENT AT SA14PLING TIME
(UG/L) (MG/L——DRY Wfl
6.8 0.1 — 0.2 (-2) ( 3/21/74) P AND N C 5/31/74) P (11/11/74) -N
SUMMARY OF PHYTOPLANKTQN DATA
3/21/74 5/31/74 11/11/74
GENERA COUNT GENERA COUNT GENERA COUNT
FLAGELLATES 842 FLAGELLATES 625 FLAGELLATES 682
HELOSIRA 577 CYCLOTELLA 208 CRYPTOMONAS 551
DACTVLOCOCCOPSIS 355 CRYPTOMONAS 182 RAPHIDIOPSIS 175
PENNATE DIATOMS 310 ASTERIONELLA 156 ANKISTRODESMUS 97
CRYPTOMONAS 177 SYNEDRA 156 DACTYLOCOCCOPSIS 83
OTHER 223 OTHER 678 OTHER 726
TOTAL 2484 TOTAL 2005 TOT-AL 2314
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOUNCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (((6/YR) INDUSTRIAL (KG/YR) SEP-TIC TANKS (KG/YR) (KG/YR) ( KG/YR)
PHOSPHORUS 25140. 70. 56850. 82060.
NITROGEN 67535. 2640. 1184730. 1254905.
H. OUTPUT
OUTLLT(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR
PHOSPHORUS 4b615. 41. 1.33
NITROGEN 1361750. LOSS 20.4
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TO1 4L N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ 1 (M) (M /L) (MG/U (KG/SQ KM/YR) (KG/SQ 1(M/YR)
BAYOU D’ARBONNE 15.000 1201.8 0.O5 0.652 2. 209.
CYPIIESS CREEK 0.910 74.6 0.099 1.046 36. 432.
STOWE CREEK 1.270 105.2 0.111 1.136 36. 446.
MID FORK BAYOU D’AWHONNE 7.160 554.3 0.052 0.612 21. 256.
CORNEY RAYOU 19.510 1748.3 0.035 0.768 12. 74.
CAME’ CREEK 0.580 51.8 0.080 1.011 28. 347.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
NAME — FALSE RIVER LAKE (EUTROPHIC)
COUNTY — POINTE COUPEE
STORET NO. — 2212 WORKING PAPER NO. 540, NTIS ACCESSION NO. P8—269 253/AB
I. MOi4PiiUM TR’q
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SO KM) (METERS) (CMS) (YEARS)
NATURAL *00*0*000* 11.78 7.1 00*00*0*0* *04*0*
II. PHYSICAL ANO CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P1MG/U ORTHO P IMG/L) INORG N(MG/L) TOTAL NIMG/L)
136. 235. 1.5 0.082 0.023 0.130 0.860
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT
24.6 2.9 — 4.1 I 2) I 3/21/74) N 1 5/29/74) N (11/12/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/21/74 5/29/74 11/21/74
GENERA COUNT GENERA COUNT GENERA COUNT
APHANIZOMENON 7918 DACTYLOCOCCOPSIS 23937 OACTYLOCOCCOPSIS 3238
ANABAENA 1220 FLAGELLATES 2462 OSCILLATORIA 2275
MELOSIRA 394 STEPHANODISCUS 1515 NITZSCHIA 1138
FLAGELLATES 158 NITZSCHIA 1288 CRYPTOMONAS 1007
STEPHANODISC US 158 OSCILLATORIA 985 CRYPTOMONAS 963
OTHER 158 OTHER 7577 OTHER 1885
TOTAL 10006 TOTAL 37764 TOTAL 10506
IV. NUTRIENT LOADING CHARACTERISTIC5(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 *0*0*0*0*0 0*00*0*0*0 *0*0*0*0*0 *00*000*00 *000*00*00
NITROGEN 00*0*0*000 00* 000000* *0*000*00* *0*0*00*00 0000*00*0*
B. OUTPUT
OUTLET 5 PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 000*0000*0 *0*00 *0*0*0*000
NITROGFN 000*00000* 0*0*0 0*0*00*00*
*0*0 LAKE SAMPLING ONLY *00*

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COMPENDIUM OF NATIONAL EUTROPHiCATION SURVEY LAKES IN LOUSIANA
NAME — INDIAN CHEEK RESERVOIR (EUTROPHIC)
COUNTY — RAPIDES
STORET NO. — 2213 WORKING PAPER NO. 541. NTIS ACCESSION NO. P8—269 563/AB
I. MORPHOP4ETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAn) DEPTH TOTAL INFLOW RETENTION TIME
(SO 1(M) (SO 1(M) (METERS) (045) (DAYS)
IMPOUNDMENT 5R.30 9.11 3.4 0.810 441.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
AL1(ALINTTY(MG/L) CONDUCTIVITV(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
18. 39. 1.1 0.031 0.010 0.150 0.600
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WI)
21.5 0.2 — 0.8 ( 2) 3/22/74) P ( 5/30/74) P (11/12/74) P AND N
SUMMARY OF PHYTOPLANKTON DATA
3/22/74 5/30/74 11/12/74
GENERA COUNT GENERA COUNT GENERA COUNT
MER1SMOPEO IA 2Q90 LUNATE CELLS 979 CYCLOTELLA 1685
MELOSIRA 2036 FLAGELLATFS 287 MELOSIRA 956
SCH ILOCHLAMYS 867 KIRCIINERIELLA 276 MERISMOPEDIA 697
CYCLOTELLA 737 NITZSCHjA 270 CRYPTOMONAS 494
FLAGELLATES 693 CHLAMYDOMONAS 260 K1RCHNERIELLA 387
OTHER 2599 OTHFR 2224 OTHER 936
TOTAL 9922 TOTAL 4296 TOTAL 5155
IV. NUTRIENT LOADINC, CHAPACTEHISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/VP) StPTIC TANKS (KG/VP) (KG/VP) (KG/VP)
PHOSPHORUS 555• 555•
N ITROGFN 70. 18685. 1875 5.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING MATE
(KG/VP) RETENTION (G/SQ M/YR)
PHOSPHORUS 108 5. LOSS 0.06
NITROGFN 18030. 4. 2.1
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) (50 1(M) (Mb/L) (MG/L) (KG/SQ KM/YR) (1(6/SQ KM/YR)
INDIAN CREEsc 0.210 14.8 0.019 0.409 3. 180.

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CUMPENDIUM OF NATIONAL EUFROPHICATION SURVEY LAKES IN LOUSIANA
NAME — SALINE LAKE (EUTROPHIC)
COUNTY - LASALLE
STORET NO. — 2214 WORKING PAPER NO. 542. NTIS ACCESSION NO. P9—269 468/AU
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN OEPTK TOTAL INFLOW RETENTION TIME
(SQ K I l l (SQ P(’4) (METERS) (CMb) (YEARS)
NATURAL 1.98 2.7
II. PHYSICAL AND CHEMICAL C’-sAHACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(Mr,/Lj CONDUCTIVITY WMMOS) (METE RS) TOTAL P(MG/L) ORTMO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
14 . 99. 0.2 0.111 0.025 0.350 1.080
III. RIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L I (MG/L——DRY VT)
15.3 5.2 I 3/19/74) N I 5/29/74) P (11/12/74) P
SUMMARY OF PHYTOPLANKTON DATA
3/19/74 5/29/74 11/12/74
GENERA COUNT GENERA COUNT GENERA COUNT
FLAGELLATES 1244 FLAGELLATES 909 MELOSIRA 287
DACTYLOCOCCOPSIS 474 MELOSIRA 795 NITZSCHIA 172
MELOSIRA 237 ANKISTRODESMUS 625 CRYPTOMONAS 115
CRUCIGENIA 237 KIRCMNERIELLA 454 FLAGELLATES 57
DINOSRYON 118 NITZSCHIA 454 TRACHELOMONAS 57
OTHER 531 OTMFR 1423 OTHER 0
- ‘1
tOTAL 2841 TOTAL 4660 TOTAL 688
IV. NUTI4IENT LOADING CHARACTLRISTICS(LAKE)
A. INPUT
POINT SOUWCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/fl) SEPTIC TANKS (KG/YR) (KG/YR) (KO/YR)
PHOSPHORUS 0*00*0*000 0*00*0000* 00* 00*0* 0*
NITROGEN 0000000*00 0 000 00000 0 00*00000*0 00000000*0
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING KATE
(KG/VR) RETENTION (G/SQ M/YR)
PHOSPHORUS *0* 0* *000000*0*
NITROGEN * 0* 0000* 00 00* 0 0 *0*00000*0
0*00 LAKE SAMPLING ONLY 000*

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
NAME — TURKEY CHEEK LAKE (EUTROPHIC)
COUNTY — FRANKLIN
STORET ND. — 2215 WORKING PAPER NO. 543. NTIS ACCESSION NO. P8—270 060/49
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(S Q KM) (SO KM) (METERS) (CMS) (OATS)
IMPOUNDMENT 461.00 12.54 2.0 5.020 57.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOSI (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
26. 82. 0.6 0.176 0.033 0.170 0.820
III. bIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/LI (MG/L——DRY WT)
22.0 1.9 — 3.7 ( 2) 1 3/19/74) N ( 5/30/74) N (11/11/74) N
SUMMARY UF PHYTDPLANKTON DATA
3/19/74 5/30/74 11/11/74
GENERA COUNT GENERA COUNT GENERA COUNT
FLAGELLATES 1843 MELOSIRA 197 FLAGELLATES 738
MELOSIRA 778 DACTYLOCOCCOPSIS 644 MELOSIRA 683
PENNATE DIATOMS 115 OSCILLATORIA 613 STEPHANODISCUS 547
CRYPTOMONAS 86 CENTRIC DIATOM 552 CRYPTOMONAS 465
DSCILLATORIA 86 CRYPTOMDNAS 430 TRACHELOMONAS 465
OTHER 311 OTHER 2296 OTHER 1717
TOTAL 3285 TOTAL 5332 TOTAL 4615 C t
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNiCIPAL (KC’/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 3915. 5. 43305. 41225.
NITROGFN 8q10. O .* . .00 00 . 265. 238660. 247895.
3. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SU M/YR)
PHOSPHORUS 29890. 37. 3.17
NITROGEN 2D26i . 18. 19.8
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW ORAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO KM) (MG/ I .) (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
TURKEY CREEK 1.820 160.6 0.234 1.2 . 38 54. .386.
6SAYSON HAYOU 0.100 ?3.8 0.481 2.285 65. 287.
WEST TURKEY CREEK 1.040 92.7 0.422 1.740 119. 564.
LITTLE TURKEY CREEK 0.860 77.2 0.480 2.415 169. 824.
UNNAMED STREAM 0.030 2.6 0.486 1.563 175. 521.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN LOUSIANA
NAME — LAKE VE RET (EUTROPHIC)
COUNTY — ASSUMPTION
STORET NO. — 2216 WOW ING PAPER NO. 544. NTIS ACCESSION NO. PB—269 469/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (Su ‘ CM) (METERS) (CMS) (YEARS)
NATURAL •*** QO*QQ S6.9 1.5 eoo. .
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCr (I DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/LJ CONDUCTIVITY (UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(M6/L) LNORG N(MG/L) TOTAL N (HG/L)
qi. 253. 0.5 0.163 0.056 0.100 1.260
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL(,AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
62.0 ( 3/21/74) N ( 5/29/74) N C 8/21/14) N (11/14/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/21/14 5/29/74 8/21/74
GENERA COUNT GENERA COUNT GENERA COUNT
PENNATE DIATOMS 4541 OSCILLATORIA 93324 OSCILLATORIA 68499
FLAGELLATES 1Q04 DACTYLOCOCCOPSIS 17742 LYNGBYA 20338
ANKISTRODESMUS 1099 ANAAAENOPSIS 4436 RAPHIDIOPSIS 9600
SCENEDESMUS 879 NITZSCHIA 3283 ANABAENOPSIS 4882
LYNGBYA 366 ANKISTRODESMUS 2306 CENTRIC DIATOM 3091
OTHER 623 OTHER 13129 OTHER 19198
TOTAL 9412 TOTAL 134220 TOTAL 125608 —.1
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE P0I’ T SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADiNG
MUNICIPAL (KG/YP INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/VP) (KG/YR) (I CGfYR)
PHOSPHORUS
NITROGEN 000G000000
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RaTE
(K6/YR) RETENTION (G/SQ H/VP)
PHOSPHORUS 0*09*0*2*o
NITROGEN
•° LAKE SAMPLING ONLY •°°

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COMPENDIUM OF NATIONAL EUTWOP 4ICATION SURVEY LAKES IN LOU IANA
NAME - LAKE VEMNON (MESOTROPHIC)
COUNTY - VERNON
STORET NO. — 2217 WORKING PAPER NO. 528. NTIS ACCESSION NO. Pb—270 078/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ MM) (SQ MM) (METERS) (CNS) (DAYS)
IMPOUNDMENT 295.30 17.09 4.1 4.130 197.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG,L) CONDUCTIVIT Y(UMIIOS) (METERS) TOTAL P(MG/L) ORTHI) P(MG/L) INORG N(HG/L) TOTAL N(MG/L)
10. 31. l.A 0.018 0.007 0.120 0.620
III. BIOLOGICAL CHARACTERISTICS (LAME)
MEAN CHLOROPHYLL A AL(,AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
( 06/I) (MG/L——DRY WT)
4.9 0.1 — 0.3 ( 2) ( 3/20/74) P ( 5/30/74) P (11/ 8/74) P
SUMMARY OF PHYTOPLANKTON DATA
3/20/74 5/30/74 11/ 6/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 723 MERISMOPEDIA 10222 MERISMOPEDIA 935
CRYPTOMONAS 337 APHANOTHECE 3903 ANACYSTIS(HICROCYSTIS) 842
CENTRIC DIATOM 241 MELOSIRA 651 MELOSIRA 655
SYNEDRA 96 CRUCIGENIA 524 CYCLOTELLA 514
BLUE—GREEN FILAMENT 48 KIRCHNEWIELLA 44d MIRCHNERIELLA 374
OTHER 240 OTHER 1684 OTHER 1686
TOTAL 1665 TOTAL 17426 TOTAL 5006
Pd. NUTRIENT LOADING CHARACTEHISTICSLAKE
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/VP) INDUSTRIAL (MG/YR) SEPTIC TANKS (KG/YR) (KG/VP) (KG/YR)
PHOSPHORUS QQQ*.QI*.* 20. 4150. 4170.
NITROGEN 695. 99680. 100375.
B. OUTPUT
OUTLET(S) PERCENT LAME SURFACE AREA LOADING RATE
(KG/VP) RETENTION (G/SU M/YR)
PHOSPHORUS 2995. 8. 0.24
NITROGEN 73175. 27. 5.9
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW i’IRAJNA(jE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) ISO MM) IMG/L) (MG/I) (KG/SQ MM/VP) (KG/SQ KM/VP)
BRUSHY CREEK 0.210 15.i 0.051 0.807 22. 365.
wEST ANACOCO CRELK 0.800 57.5 0.030 0.646 12. 305.
EAST ANACOCO CREEK 1.340 95.8 0.077 0.694 16. 256.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN MISSOURI
NAME — CLEAR ATEH LAKE (MESOTPOPHIC)
COUNTY — REYNOLDS. WAYNE
STOMET NO. — 2901 WORKING PAPER NO, 547, NTIS ACCESSION NO. P8—268 311/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SuRFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ 1 (M) (METERS) (CMS) (DAYS)
IMPOUNDMENT 2325.80 6.60 4.1 24.060 13.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO PMG/L) INORG N(MG/L) TOTAL N(MG/L)
98. 201. 1.4 0.011 0.004 0.150 0.300
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(06/U (V iGIL——DRY wfl
3.6 0.1 ( 4/ 9/74) P ( 6/18/74) P (10/ 8/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/ 9/74 6/18/74 10/ 8/74
GENERA COUNT GENERA COUNT GENERA COUNT
CMROOMONAS 266 CMROOMONAS 428 CRYPTOMONAS 165
NITZSCHIA 222 SYNEDRA 238 MELOSIRA 165
CRYPTUMONAS 177 CRYPTOMONAS 190 COCCOID CELLS 55
MELOSIRA 177 CENTRIC DIATOM 95 PERIDINIUM 55
CYCLOTELLA 133 ANKISTRODESMUS 48 TRACHELOMONAS 55
OTHER 45 OTHER 190 OTHER 0
- 1
TOTAL 1020 TOTAL 1189 TOTAL 495
IV. NUTRIENT LOADING CHARACTERISTICSaAKE
A. INPUT
POINT SOURCE °OINT SOURCE POINT SOURCE NUN—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEP IIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOsPHORUS 1265. *0*0000*0 15. 6380. 7660,
NITROGEN 3560. *0 00*00 0* 0 560. 782015. 78613 ..
4. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG / f l) RETENTION (GiSt) M/YR)
PHOSPHORUS 2OQ65. LOSS 1.16
NITROGEN 973230. LOSS 119.1
V. NON—POINT-SOURCE NUTR1ENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO KM (Mb/L) (Mu lL) (KG/SQ KM/YR) (KG/SQ KM/YR)
BLACK RIVER 15.250 1276.9 0.010 1.063 4. 383.
SINKING CREEK 1.250 191.7 0 .009 1,078 2. 230.
LOGAN CREEK 3.230 445.5 0.013 1.441 0.9 332.
VI. MEAN NUTRIENT CUNCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (Mb/L)
HEAR BRANCH 0.018 l.3n2

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COMPENDIUM OF NATIONAL FOTROPHICATIOPJ SURVEY LAKES IN MISSOURI
NAME — POMME DE TERRE RESERVOIR (EUTROPHIC)
COUNTY — POLK , HICKORY
S1ORET NO. — 2902 WORKING PAPER NO. 548. NTIS ACCESSION NO. P8—268 384/Ab
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 cM) (SQ KM) (METE RS) (CMS (DAYS)
IMPOUNDMENT 1592.80 31.65 9.5 11.810 314.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEOTAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(IJMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(M6/L) TOTAL N(MG/L)
120. 222. 1.3 0.043 0.008 0.275 0.805
III. HIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY W I )
9.4 1.8 — 8.1 ( 3) ( 4/ 8/14) P ( 6/20/74) P (10/ 8/74) P
SUMMARY OF PHYTOPLANIcTON DATA
4/ 8/74 6/20/74 10/ 8/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 1524 APHANIZOMFNON 887 MELOSIRA 1233
STEPHANODISCUS 1001 CYCLOTELLA 881 DACTYLOCOCCOPSIS 596
CRYPTOMONAS 334 CARTERIA 493 CHROOMONAS 340
EUGLENA 333 CRYPTOMONAS 444 CRUCIGENIA 256
CHLAMY OOMONAS 238 CHROOMONAS 394 SCENEDESMUS 170
OTHER 285 OTHER 1677 OTHER 596
TOTAL 3715 TOTAL 4782 TOTAL 3191
IV. NUTRIENT LOADING CHAWACTERISTICS(LAKE)
A. iNPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (Kb/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/Y 14)
PHOSPHORUS 7120. 25. 13635. 20780.
NITROGEN 11405. 990. 588640. 607035.
‘4. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RITENTION (b/SQ M/YR)
PHOSPMOR(J5 li ’ 680. 39. 0.66
NITROGEN 43354 J. 29. 19.2
V. NON—POINT—SOURCE NOTWIFNT EXPORT
STREAM NAME MEAN FLOW ‘ iPAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (Sli 1 cM) (MG/L) (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
POMME OE TERRE RIVER 4.970 714.8 0.066 1.572 14. 406.
LINDLEY PTVtR 2.600 297.8 0.065 1.477 8. 446.
DRY FORK rREEK 0.4 50 77.7 0.024 1.194 2. 240.
VT. MEAN r4OTPIENT CONCENTRATIONS TN UNGAbED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(M4/L) (MG/L)
INGALLS CPFEK 0.019 1.209
PIPER CRFFK * 0.727 1.767
ARELS BRANCH 0.938 1.334
JORDAN CQFE,c 0.919 1.131
HRUSH CPFFK 0.021 1. 197
PELOW POINT SuiJkCE.

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.COMPENDIUM OF NATIONAL EUTROPHICATIUN SURVEY LAKES IN MISSOURI
SAME — STOCKTON RESERVOIR (EUTROPHIC)
COUNTY — DADE. POLK. CEDAR
STORET NO. — 2901 WORKING PAPER NO. 549 , NTIS ACCESSION NO. P8—268 328/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SQ KR) (METE RS ) (CMS) (YEARS)
IMPOUNDMENT 3004.40 100.17 7.3 22.650 1. 1
I i. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCr’I DISC MEDIAN MEDIAN MED iAN MEDIAN
ALKAL1NITY(M6/L) CONDUCT1VITY(UMMOS) (METERS) TOTAL P 1MG/LI ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/Li
132. 230. 1.6 0.022 0.0Db 0 .610 0.985
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIM iTING NUTRIENT AT SAMPL iNG TIME
(UG/L) (MG/L—-DPY WT)
9.0 0.1 — 1.2 ( 4) ( 4/ 8/74) P ( 6/24/741 P (10/ 8/74 1 P
SUMMARY OF PHYTOPLANKTON DATA
4/ 8/74 6/24/74 10/ 8/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 16515 FRAGILARIA 599 MELOSIRA 879
STEPHANODISCUS 3398 MELOSIRA 436 OACTYLOCOCCDPSIS 778
CH ROOMONAS 430 CHROOMONAS 381 CHROOMONAS 744
ANKISTRODESMUS 381 CRYPTOMONAS 381 STEPHANDDISCUS 271
CRYPTOMONAS 256 IETRAEURDN 163 cRYPTOMONAS 237
OTHER 686 OTHER 328 OTHER 779
TOTAL 21676 TOTAL 2288 TOTAL 3686 —
I’4. NUTRIENT LOADING CHARACTLRISTICS(LAKE
A. INPUT
POI ’et SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR INDUSTRIAL IKG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YM)
PHOSPHORUS 20700. G0000* 0 0 0 5. 28590. 49295.
NITROGEN 5o575. 215. 1734420. 1791210.
R. OUTPUT
OUTLt I(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 10140. 78. 0.49
NITROGEN 1106085. 38. 17.8
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW I)RAINAGE AREA MEAN TO IAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ 1(M) (MG/LI (MG/L) (KG/SO KM/YRI (KG/Sw KM/YRJ
SAC RIVER 4 .390 581.9 0.058 2.104 2. b 19.
LITTLE SAC RIVER 4.640 606.1 0.130 2.574 6. 567.
IURNBACK CREEK 3.RRO 525.8 0.055 2.282 13. 537.
‘ S I. MEAN NUTRIENT CONCENTRATIONS IN UNG4GEO STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L I (Mb/LI
SLAGLE CREEK 0.027 1.09 0
TURKEY CREEK 0.019 0.826
LIMESTONE CREEK 0.034 0.945
SONS CREEK ( 1.05 4 1.005
WALNUT CREEK 0.026 0.9R4

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN MISSOURI
NAME — THOMAS HILL RESERVOIR
COUNTY — MACON, RANDOLPH
STORET NO. — 2 905
(EUTROPHIC)
WORKING PAPER NO. 550. NTIS ACCESSION NO. PS—268 265/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA
(SQ KM)
IMPOUNDMENT 388.50
SURFACE AREA
(S Q KM)
17.81
MEAN DEPTH
(METERS)
4.1
TOTAL INFLOW
(CMS)
2 .140
RETENTION TIME
(YEARS)
1.2
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY ST)
5.8 0.2 — 0.8 ( 2)
TOTAL
315 TOTAL
928 TOTAL
6037
PHOSPHORUS
NITROGEN
B. OUTPUT
PHOSPHORUS
NITROGEN
POINT SOURCE
MUNICIPAL (KG/YR)
00
OUTLtT (5)
(KG/YR)
3100.
107770.
POINT SOURCE
INDUSTRIAL (KG/YW)
00 000 400 0 4
PERCENT
RE TENT ION
57.
47.
POINT SOURCE
SEPTIC TANKS (KG/YR)
5.
215.
NON—POINT SOURCE
(KG/YR)
8530.
203465.
TOTAL LOADING
(KG/YR)
8535.
203680.
DRAINAGE AREA
(50 KM)
168 • 3
MEAN TOTAL P
(MG/L)
0.088
MEAN TOTAL N
(MG/L)
2 • 034
TOTAL P EXPORT
(KG/SQ KM/YR)
22.
TOTAL N EXPORT
(KG/SQ KM/YR)
497.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
0.138 2.296
0.?54 2.849
0.193 .715
0.175 2.764
0.068 2.038
0.160 2.400
0.044 1.067
0.093 1.161
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCTIVITY (UMHOS)
56. 251.
MEAN SECCHI DISC
(METERS)
0 ,3
SUMMAR’V OF PHYTOPLANKTON DATA
4/ 8/74 6/20/74
MEDIAN
MEDIAN
MEDIAN
MEUIAN
TOTAL
P(MG/L)
ORTHO
P(MG/L)
INORG
N(MG/L)
TOTAL
N(PG/L)
LIMITING NUTRIENT AT SAMPLING TIME
4/ 8/74) P ( 6/20/14) P AND N (10/ 7/74) P
10/ 7/74
GENERA
COUNT
GENERA
COUNT
GENERA
COUNT
CHROOMONAS
140
CHROOMONAS
253
STEPHANODISCUS
2045
CRYPTOMONAS
94
STEPHANODISCUS
2S3
NITZSCHIA
1217
SC HROEDERIA
94
CRYPTOMONAS
211
MELOSIRA
682
NITZSCHIA
47
MELOSIRA
CLOSTERIUM
169
42
SKELETONEMA
CHROOMONAS
682
341
OTHER
0
OTHER
0
OTHER
1010
IV. NUTRIENT LOADING CMARACTEWISTICS(LAKE)
A. INPUT
V . NON—POINT—SOURCE NUTRIENT EXPOPT
STREAM NAME MEAN FLOW
(CMS)
MIDOLE FORK CHARITON R. 0.940
LAKE SURFACE AREA LOADING RATE
(6/SO M/YR)
0.48
11.4
M100LE FK CHARITON P. *3
MIDDLE FK CHARITON 1. A’.
STINKING CREEK Hi
STINKING CREEK R2
NORTH FORK CLAYBANK CR.
SWEEZER CREEK
UNNAMED CREEK El
UNNAMED CREEK

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN MISSOURI
NAME — LAKE WAPPAPELLO IFUTROP HIC )
COUNTY — WAYNE. BUTLER
STORET NO. — 2906 WORKING PAPER NO. 551. NTIS ACCESSION NO. P 8—268 313/AU
I. MORPHOMETRY
LAKE TYPE ORAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KMI (SQ KM) (METERS ) (CMS) (DAYS)
IMPOUN0MENT 3395.50 16.59 3.0 38.61U 14.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METE RS ) TOTAL P(MG/L) ORTHO P(MG/L INORG NIMG/L) TOTAL N(I4G/L)
68. 139. 1.0 0.033 0.004 0.105 0.350
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (M6/L——DRY WT I
9.6 0.1 — 0.4 1 21 1 4/ 9/74) P ( 6/18/74) P (10/ 8/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/ 9/74 6/18/74 10/ 8/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 1539 MELOSIRA 1684 MELOSIRA 3759
CHROOMONAS 483 CHROOMONAS 741 CRUCIGENIA 239
NITZSCHIA 483 SKELETONEMA 562 TRACHELOMONAS 239
CRYPTOMONAS 483 ANACYSTIS(MICROCYSTIS) 472 ANKISTRODESMUS 179
DACTYLOCOCCOPSIS 220 DINOBRYON 336 CRYPTOMONAS 119
OTHER 835 OTHFR 2135 OTHER 177
TOTAL 4043 TOTAL 5930 TOTAL 4712
IV. NUTRIENT LOADING CHARACTER1STICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL IKG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 375. 75. 31510. 31960.
NITROGEN 1120. 2835. 1366125. 1370080.
8. OUTPUT
OUTLET (5) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION IG/SO M/YR)
PHOSPHORUS 52670. LOSS 1.93
NITROGEN 1526360. LOSS 82.6
V. NON—POINT—SOURCE NUTRIENT EXPORT
STRIAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
ICMS) (SO KM) (MG/U (MG/L) (KG/SO KM/YR) (KG/SQ KM/YR)
ST. FRANCIS RIVER E7.S80 2432.0 0.039 1.221 12. 475.
CLAHK CREEK 0.580 97.1 0.016 1.076 3. 204.
VI. MEAN NUTRIENT CONCENTRATIUNS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L I (HG/LI
wEST FORK LOST CREEK 0.013 1.594
BIG CREEK 0.019 0.911
DRY CREEK 0.017 0.680
TRACE CREEK 0.022 1.059

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEBRASKA
NAME — BRANCHED OAK RESERVOIR (EUTROPH1C)
COUNTY - LANCASTER
STORET NO. - 3101 WORKING PAPER NO. 554. NTIS ACCESSION NO. P8—258 244/AB
I. MORPHUMETRY
SURFACE AREA
(50 1 (M)
7.28
MEAN DEPTH
(METERS)
5.5
TOTAL INFLOW
(CMS)
0.760
RETENTION TIME
(YEARS)
2.8
SU MM A P Y
4/17/ 74
MFAN SE CCHI DISC
(METERS)
MEDIAN
TOTAL P(MG/L)
MEDIAN
ORTHO P(MG/L)
INORG N(MG/L)
TOTAL N(MG/L)
LAKE TYPE DRAINAGE AREA
(SO 1 (M)
IMPOUNDMENT 214.70
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCTIVITY (UMNOS)
226. 406.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WI)
17.0
OF PIIYTOPLANKTON DATA
7/ 2/74
GENERA COUNT GENERA
ASTERIONELLA 15728 CARTERIA
FLAGELLATES 2192 FLAGELLATES
DINOBRYON 1334 CPYPTOMONAS
CRYPTOMONAS 572 CYSTS
ANKISTRODESMUS 191 APHANIZOMENON
OTHER 381 OTHER
TOTAL 20398 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KC’/YR)
PHOSPHORUS
NITROGEN 4 * 1 94 * 0 * 0
H. OUTPUT
OUTLET (5)
(KG/YR)
PHOSPHORUS 1039.
NI IROGFN 16065.
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(CMS)
OAK CRFEK A2 0.260
MIDDLE OAK CREEK 0 .220
VI. MEAN NUTPIENT CONCENTRATIONS IN UNGAGEO
STREAM NAME MEAN TOTAL P
(MG/L)
OAK CREEK A3 0.206
UNNAMED STREAM CI 0.248
LIMITING NUTRIENT AT SAMPLINb TIME
4/17/74) N ( 7/ 2/74) NO DATA ( 9/26/74) N
9/26/74
COUNT GENERA COUNT
1541 MELDSIRA 5603
572 CRYPTOMONAS 580
396 APHANIZOMENON 515
308 FLAGELLATES 322
220 COELOSPMAERIUM 258
926 OTHER 773
3963 TOTAL 8051
POINT SOURCE POINT SOURCE
INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR)
*00000*000 0*00*0*0* 0
0*0*00*0*0 *0*0*0*000
PERCENT LAKE SURFACE AREA LOADING RATE
RETENTION (G/SO M/YR)
80. 0.72
71. 7.7
NON—POINT SOURCE
(KG/YR
5250.
55755.
TOTAL LOADING
(KG/YR)
b2S O.
55755.
()RAINAGE AREA
(SC) 1 (M)
73.8
60.6
STREAMS
MEAN TOTAL N
( W i lL)
2.069
2. 77 W
MEAN
TOTAL P
MEAN
TOTAL N
TOTAL P
EXPORT
(MG/L)
(MG/L)
(KG/SQ
KM/YR)
(KG/SQ
KM/YR)
0.260
1.735
26.
212.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEBRASKA
NAME - HARLAN COUNTY RESERVOIR (IIYPEREUTROPHIC)
COUNTY — HARLAN
STOWET NO. — 3102 WORKING PAPER NO. 555. NTIS ACCESSION NO. P8—258 283/AB
I. MORPPIOMETRY
LAKE TYPE DRAINAGE AREA SURFACE APEA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KH) (SO KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 35042.70 54.50 7.8 11.370 1.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECC’II DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKAL1NITY(MG/L) CONDUCTIVITYUMMOS) (METERS) TOTAL P ING/I) ORTHO P(MG/L INORG FI(MG/L) TOTAL N(MG/L)
199. 475. 0.6 0.112 0.061 0.365 1.090
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/LI (MG/L——DRY WT
27.8 C 4/16/74) N ( 6/28/74) N I 9/30/74) P AND N
SUMMARY OF PHYTOPLANIcTON DATA
4/16/74 6/28/74 9/30/74
GENERA COUNT GENERA COUNT GENERA COUNT
CYCLOTELIA 17419 MELOSIRA 1759 STEPHANODISCUS 3555
ASTERIONELLA 4211 CARTERIA 879 CYCLOTELLA 1616
FLAGELLATES 2105 APHANIZOM NON 837 FLAGELLATES 1050
DACTYLOCOCCOPSIS 979 STEPHANODISCUS 502 DACTYLOCOCCOPSIS 162
STEP )4ANODISCUS 832 FRAGILARIA 419 SCENEDESMUS 162
OTHER 784 OTHER 1299 OTHER 618
TOTAL 26390 TOTAL 569b TOTAL 7163
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL CKC-/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 3190. 45. 117890. 121125.
NITROGEN 9390. 1600. 1033905. 1044895.
R. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(PcG/YN) RETENTION (G/SU M/YR)
PHOSPHORUS 24740. RO. 2.22
NITROGEN 34916b. 67. 19.2
V. NON—POINT-SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW ORAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO 1cM) (MG/L) (MG/L) (KG/SO KM/YR) (KG/S J KM/YR)
R1PU LICAN RIVER 10.650 31572.1 0.297 2.733 3. 29.
PRAIRIE DOG CREEK 0.500 2745.4 0.892 2.742 5. 16.
ROPE CREEK 0.030 69.9 0.632 2.555 9. 35.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGEL) STREAMS
STREAM NAME MEAN TOTAL P MF N TOTAL N
(MC-/L) (MG/L)
FLAG CREEK 0.516 2.501

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEBRASKA
NAME — HARRY 0. STRUNK RES. (EUTROPHI C)
COUNTY — FRONTIER
STORET NO. — 3103 WORKING PAPER ND. 556. NTIS ACCESSION NO. P8—258 284/AS
I. MOSPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ MM) (SQ KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 1651.60 7.49 5.8 2.130 280.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTiO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
116. 335. 0.8 0.064 0.009 0.460 1.030
III. BIOLOGICAL CHARACTERISTICS (LAME)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
14.4 0.1 ( 4/16/74) P ( 7/ 1/74) NO DATA ( 9/27/14) P
SUMMARY OF PHYTOPLANKTON DATA
4/16/74 1/ 1/74 9/27/74
GENERA COUNT GENERA COUNT GENERA COUNT
ASTERIONELLA 62062 APHANIZOMENON 1596 STEPiANODISCUS 3654
CENTRIC DIATOM 4124 MELOSIRA 126 KIRCHNERIELLA 715
DACTYLOCOCCOPSIS 3921 CRYPTOMONAS b22 CRUCIGEN1A 664
FLAGELLATES 2434 FRAGILARIA 319 CRYPTOMONAS 277
CRYPTOMONAS 270 SCHRDEDERIA 203 SYNEDRA 277
OTHER 271 OTHER 262 OTHER 775
TOTAL 73082 TOTAL 3628 TOTAL 6422
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 1320. 0*0* 4*0*0* 5. 44555. 45880.
NITROGEN 3965. 0*4 0040*0* 95. 258420. 262480.
B. OUTPUT
OUTLtT(SI PERCENT LAKE SURFACE AREA LOADING RATE
(KO/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 2125. 94. 6.13
NITROGEN 112530. 57. 35.0
V. NUN—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ MM) (MG/L) (HG/L) (KG/SQ KM/YR) (KG/SU KH/YR)
MEDICINE CREEK 1.990 1372.1 0.40 5 2.925 27. 152.
VI. HEAN NUTHIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
LIME CREEK 0.106 3. 01
CEDAR CREEK 0.132 2.367
FOX CREEK 0.137 2.738

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.COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEBRASKA
NAME — HUGH BUTLER REStRVOIP (EUTROPHIC)
COUNTY — FRONTIFW.RED WILLOW
STORET NO. — 3104 WORKING PAPER NO. 557. NTIS ACCESSION NO. P8—258 236/AB
I. MURPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KN) (50 KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 828.80 6.59 5.9 1.400 1.2
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
240. 314. 0.8 0.061 0.014 0.090 0.740
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLINu TIME
(UG/L) (MG/L——DRY WT)
16.6 ( 4/16/74) N ( 7/ 1/74) NO DATA ( 9/27/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/16/74 7/ 1/14 9/27/74
GENERA COUNT GENERA COUNT GENERA COUNT
ASTERIONELLA 14842 ANKISTRODESMUS 805 CENTRIC DIATOM 1280
CENTRIC DIATOM 7574 CRYPTOMONAS 805 FLAGELLATES 411
FLAGELLATES 4031 CARTERIA 725 CRYPTOMONAS 228
ANKISTRODESMUS 2871 DACTYLOCOCCOPSIS 322 STEPHANODISCUS 183
DACTYLOCOCCOPSIS 428 FLAGELLATES 322 DOCYSTIS 137
OTHER 1160 OTHER 1690 OTHER 548
TOTAL 30906 TOTAL 4669 TOTAL 2787
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YP) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YP) (KG/YR)
PHOSPHORUS 0 *0 *0 *0 * 4 0 0000 0000 0 10. 10585. 105 %.
NITROGEN 0 40t 00 0 0 0 0 *0*000*0 *0 340. 88050. 88390.
B. OUTPUT
OUTLET(S) PE RCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 1940. 82. 1.61
NITROGEN 4870’i. 45. 13.4
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/ U (MG/LI (KG/SO KM/YR) (Kb/SO KM/YR)
RED WILLOW CREEK 0.M40 518.0 0.246 1.901 13. 97.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TD IAL P MFAN TOTAL N
(MG/L) (Mu/L)
SPRING CREEK 0*4*0* 00*000

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEBRASKA
NAME — JOHNSON RESERVOIR (FUTROPHIC)
COUNTY — DAWSON.GOSPER
SIORET NO. - 31U5 WORKING PAPER NO. 558, NTIS ACCESSION NO. P6—258 294/AS
I. MORPMOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO MM) (SO MM) (METERS) (CMS) (DAYS)
IMPOUNDMENT •********* 1 1.53 6.1 33.370 27.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
177. 728. 0.6 0.075 0.009 0.340 0.940
III. SIOLOGICAL CHARACTERISTICS (LAME)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
26.1 0.2 — 8.6 ( 2) ( 4/16/74) P ( 7/ 1/74) NO DATA ( 9/30/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/16/74 7/ 1/74 9/30/74
GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODISCuS 237t0 FRAGILARIA 2346 MELOSIRA 2232
ASTERIONELLA 921 STEPHANODISCUS 739 STEPHANODISCUS 536
DIATOMA 614 MELOSIRA 304 APMANIZOMENON 476
CHLAMYOOMONAS 537 APHANIZOMFNON 261 OSCILLATORIA 357
SURIRELLA 499 SYNEDRA 217 ANABAENA 208
OTHER 2112 OTHER 651 OTHER 1160
TOTAL 2b443 TOTAL 4518 TOTAL 4969
I V. NUTRIENT LOADING CMAPACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS CKG/YR) (KG/ V P) (KG/YR)
PHOSPHORUS ttOt*t**t* 165. 77295. 77460.
NITROGEN 6115. 1616795. 1622910.
*3. OUTPUT
OUTLtT(S) PERCENT LAKE SURFACE AREA LOADING RATE
(MG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 5229b. 32. 6.72
NITROGEN 1172080. 28. 140.8
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 MM) (MG/L) (MG/L) (KG/SQ ICM/YR) (KG/SQ KM/YR)
TRI COUNTY SUPPLY CANAL 33.370 •°°° ° 0.072 1.532

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEBRASKA
NAME — C.W. MCCUNAUGHY RES. (ME5Q—E IJTPOPHIC)
COUNTY — KEITH
STORET NO. — 3106 WORKING PAPER NO. 559. NTIS ACCESSION NO. P8—258 252/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ 1 (M ) (5 0 1(M) (METERS) (CMS) (YEARS)
IMPOUNDMENT 66821.90 141.64 19.8 45.080 2.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEOIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS ) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
202. 659. 2.3 0.027 0.004 0.585 0.830
III. BIOLOGICAL CnARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
8.6 0.1 — 0.8 ( 2) ( 4/16/14) P ( 7/ 1/14) NO DATA ( 9/21/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/16/74 1/ 1/14 9/27/74
GENERA COUNT GENERA COUNT GENERA COUNT
ASTERIONELLA 5113 CRYPTOMDNAS 860 CRYPTOMONAS 1023
FLAGELLATES 4362 FRAGILARIA 602 FLAGELLATES 884
C RYPTOMONAS 134 ASTERIONELLA 473 DACTYLOCOCCOPSIS 651
STEPHANODI5CUS 463 FLAGELLATES 344 MELOSIRA S12
DACTYLOCOCCOPSIS 386 SCHROEDERIA 344 MERISMOPEDIA 419
OTHER 1120 OTHER 690 OTHER 1442
TOTAL 12238 TOTAL 3313 TOTAL 4931
IV. NUTRIENT LOADING CHARACTER1STICS(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)
PHOSPHDPUS 1475. 45. 190890. 192410.
NITROGEN 4430. 1625. 4218715. 4224710.
3. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(ISG/YR) REFENTION (G/SQ M/YR)
PHOSPHORUS 3851 . 80. 1.3b
NITROGEN 121610b. 71. 29.8
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) (Sn KM) (MG/L I (MG/L) (KG/SQ KM/flU (KG/SQ KM/YR)
NORTH PLATTE RIVER 40.110 65185.9 0.134 3.014 3. 58.
CLEAR CREEK 0.220 51.8 0.121 1.945 17. 256.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L I (MG/L)
GWAF CANAL 0.123 1.469

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEBRASKA
NAME — PAWNEE RESERVOIM (FUTROPHIC)
COUNTY — LANCASTER
STORET NO. — 31u7 WORKING PAPER NO. 560, NTIS ACCESSION NO. P8—253 245/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KPfl (SQ KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 8 5.20 2.Q9 3.7 0.230 2.9
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCH I DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONUUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTijO P(M6/L) INORG N(MG/L) TOTAL N(M6/L)
223. 384. 1.2 0.060 0.020 0.175 1.065
III. BIOLOGICAL CHARACTERISTICS tLAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY wT)
15.4 ( 4/17/74) P AND N ( 7/ 2/74) NO DATA ( 9/26/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/11/74 1/ 2/74 9/26/14
GENERA CUUNT GENERA COUNT GENERA COUNT
DINOBRYON 849 CRYPTOMONAS 634 MELOSIRA 765
CRYPTUMONAS 310 MELOSIRA 465 APHANIZOMENON 382
ASTERIONELLA 212 FLAGELLATES 422 ANACYSTIS(MICROCYSTIS) 287
STEPHANODISCUS 147 SCHROEOERIA 338 CRYPTOMONAS 271
FLAGELLATES 82 ANABAENA 296 STEPHANODISCUS 96
OTHER 97 OTHER 634 OTHEP 254
TOTAL 1697 TOTAL 2189 TOTAL 2055
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL CKG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS *0.0*0a0* 2190. 2190.
NITROGEN 16885. 16885.
6. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS 555. 75. 0.73
NITROGEN 5560. 61. 5.6
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINMJE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EAPORT TOTAL N EXPORT
(CMS) (SQ KM) (MG/L) (MG/L) (KG/SQ KM/YR) (KG/SQ KM/Yi )
MIDDLE CWEEK 0.100 31.3 0.325 1.190 26. 160.
UNNAMED STREAM ‘31 0.060 23.1 0.302 1.994 26. 175.

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COMPENDIUM or NATIONAL EUTROPHICATION SURVEY LAKES IN NEBRASKA
NAME — SHERMAN RESERVOIR (EUTROPHIC)
COUNTY - SHERMAN
STORET NO. — 31u8 WORKING PAPER NO. 561. NTIS ACCESSION NO. P6—258 288/AG
I. MORPHOMETWY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SQ KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 00000*0*0* 11.51 7.3 0*00*00*0* 0*0 *0 *
11. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCH1 DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY (MG/I) CONDUCTIVITY (UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
105. 169. 1.2 0.067 0.050 0.090 0.340
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
5.7 2.0 I 4/17/74) N ( 7/ 1/74) NO DATA 1 9/27/74) N
SUMMARY Of PHYTOPLANKTON DATA
4/17/74 7/ 1/74 9/27/74
GENERA COUNT GENERA COUNT GENERA COUNT
ASTERIONELLA 503 MERISMOPEDIA 461 STEPHANODISCUS 2198
FLAGELLATES 457 FLAGELLATES 423 FRAGILARIA 244
FRAGILAR IA 183 CRYPTOMONAS 269 FLAGELLATES 153
STEPHANQ OI5CU5 137 SCHROEDERIA 154 CYCLOTELLA 122
CYMBELLA 91 STEPHANODISCUS 154 MELOSIRA 122
OTHER 229 OTHER 76 OTHER 244
TOTAL 1600 TOTAL 1537 TOTAL 3083
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 *00*0*000* 00*0*000*0 *0*0*000*0 0*0*00*00* *00*0*0*0*
NITROGEN 00*0*00*0* 0*0*0*0*0* 00*0*00*0* 0000*0000* 0*0*0*0*0*
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS *000*00*00 *00*0 0*0*0*0*0*
NITROGEN *00*00*0* *0*0* 0*0*0*00*0
0*0* LAKE SAMPLING ONLY *0*0

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PHI) SPHO PUS
NI 1ROGEN
B. OUTPUT
SUMMARY
4/15/74
U , PHYTOPLANKTON DATA
6/28/74
COUNT GENERA
15214 FLAGElLATES
709 SCHROEDERIA
125 CRYPTOMONAS
83 FRAGILARIA
STEPHANOD I SCUS
OTHER
TOTAL
(LAKE)
P C CE NT
RETENTiON
66.
50.
LAKE SURFACE AREA LOADING RATE
(8/SQ M/YR)
0 • 87
13.7
COUNT
912
568
293
189
155
636
2753
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NEBRASKA
NAME — SWANSON RESERVOiR IEUTROPHIC )
COUNTY — HITCHCOCK
STORET NO. — 3110 WORKING PAPER NO. 562, NTIS ACCESSION NO. P6—258 282/AB
I. MORPHONETRY
LAKE TYPE DRAINAGE AREA S(JRFACE AREA
(SO ‘SM) (S Q 1CM)
IMPOUNDMENT 10204.60 20.13
11. PHYSICAL AND CHEMICAL CHARACTERISTICS
MED iAN MEDIAN
ALKALINITY (MG/L) CONDUCTIVITY (UNHOS)
241. 457.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL6AL ASSAY CONTROL YIELD
(UG/L) (H elL——DRY UT)
14.4
MEAN DEPTH
(METERS)
1.3
TOTAL INFLOW
I CMS)
4.170
RETENTION TIME
(YEARS)
1.4
MEAN SECCHI DISC
(METERS)
MEDIAN
TOTAL P(MG/L)
MEDIAN
ORTHO PING / u
MEDIAN
INORG N(MG/L)
MEDIAN
TOTAL N(MG/L)
0.9
0.067
0.016
0.090
0.620
GENERA
ASTER IONELLA
C T CL 01 EL L A
FLAGELLATES
GLENODINIUM
OTHER 0
TOTAL 16131
l v. NUTRIENT LOADING CHARACTERISTICS
A. INPUT
PU [ idT SOURCE
MUNICIPAL (KG/nfl
1560.
4540.
LIMITING NUTRIENT AT SAMPLiNG TIME
4/15 174) N ( 6/28/74) NO DATA ( 9/27/1 *) N
q/2 7/74
COUNT GENERA
413 STEPr IANODISCUS
376 CRYPTOMONAS
338 OOCYSTIS
338 ANACYSTIS(MICROCYSTIS)
263 CLOSTERIUM
262 OTHER
1990 TOTAL
OUTLET(S)
(KG/YR)
PHOSPHORUS 5930.
NITROGEN 138805.
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME ftIEAN FLOw
(CMS)
REPUBLICAN RIVER 4 .000
POINT SOURCE
POINT
SOURCE
NON—POINT SOURCE TOTAL LOADING
INDUSTRIAL
(KG/YR)
SEPTIC
TANKS (KG/YR) *KG/YP)
(KG/YR)
Dt•*tt**t*
10.
15925.
11495.
t ***O•**•*
285.
271685.
276510.
•
IC
DRAINAGE AREA
(SO KM)
9842. U
MEAN TOTAL P
(MG/L)
0 124
MEAN TOTAL N
(MGIL)
1.917
TOTAL P EXPORT TOTAL N EXPORT
(KG/SQ KM/flU (KG/SQ KM/YR}
2. 25.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NORTH DAKOTA
NAME — LAKE ASHTABULA (EUTROPHIC)
COUNTY — 6ARNES ,IiRIGGS
STORET NO. — 3801 WORKING PAPER NO. 565, NTIS ACCESSiON NO. P8—259 814/AS
I. MORPHOM TRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (50 1 (M) (METERS) (CMS) (DAYS)
IMPOUNDMENT 4946.90 21.98 4.0 3.737 304.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METE H5) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
260. 511. 0.7 0.260 Q.l10 0.160 1.640
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
40.9 12.9 — 19.6 ( 2) ( 4/30/74) N ( 1/11/74) N ( 9/17/7 ) N
SUMMARY OF PHYTOPLANKTON DATA
4/30/74 7/17/74 9/17/74
GENERA COUNT GENERA COUNT GENERA COUNT
CYCLOTELLA d4617 MELOSIRA 2400 APMANIZOMENON 9136
CHROOMONAS 222 APHANIZOMENON 304 MELOSIRA 4637
CRYPTOMONAS 148 FRAGILA RIA 213 ANABAENA 446
ANKISTRODESMUS 111 GLENODINIUM 182 FRAGILARIA 412
CHLAMYDOMONA5 74 CHROOMONA5 61 FLAGELLATES 343
OTHER 221 OTHER 789 OTHER 584
TOTAL 25393 TOTAL 3949 TOTAL 15558 a -
IV. NUTRIENT LOADING CHAPACTERISTICS(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 1975. *00*00000 35. 30025. 32035.
NITROGEN 5915. 1065. 295885. 302865.
8. OUTPU I
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/S0 M/YR)
PHOSPHORUS 2582S. 19. 1.46
NIIROGEN 243675. 20. 13.8
V. NON—POINT—SOURCE NUTRIENT IXPORT
STREAM NAME MEAN FLOW ORAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (50 1(M) MG/L) (MG/L) (KG/SO KM/YR) (KG/SO KM/YR)
SHEYENNE RIVER 2.900 3289.3 0.237 2.145 8. 69.
RALDHILL CREEK 0.410 986.3 0.167 1.846 2. 27.

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NAME — AUDUBON LAKE
COUNTY — MCLEAN
STORET NO. — 3802
I. MORPHOME TRY
LAKE TYPE DRAINAGE AREA
(SO KH)
IMPOUNDMENT
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/U CONDUCTIVITY (UMHOS)
400. 1211.
III. BIOLOGICAL CHARACTIRISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WT)
11.3 5.9
SUMMARY
4/26/74
GENERA
CENTRIC DIATOM
C HLAMYDOMONAS
CHROOMONAS
CRYPTOMONAS
CHLOROPHYTAN COLONIES
OTHER
P MUSPHORUS
NITROGEN
H. OUTPUT
PHOSPHORUS
NITROGEN
POINT SOURCE
INDUSTRIAL (KG/Y B)
4*4*4*0*0*
*4*400*4*0
PERCENT
RETENTION
0*0*0
*0*04
9/13/14
COUNT GENERA
579 APHANIZOMENON
83 CHROOMONAS
COUNT
5350
132
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NORTH DAKOTA
(EUTROPHIC)
WORKING PAPER NO. 566. NTIS ACCESSION NO. P8-260 891/AS
SURFACE
AREA
MEAN DEPTH
TOTAL INFLOW
RETENTION
TIME
(S I ) KM)
(METERS)
(CMS)
(YEARS)
48.56
*4*44*
*4* 4*4*44*
* 4*4*0
MEAN SECCHI DISC
(METERS)
MEDIAN
TOTAL P(MG/L)
MEDIAN
ORTHO PMG/L)
MEDIAN
INORG N(MG/L)
MEDIAN
TOTAL N(MG/L)
1.4
0.087
0.015
0.220
1.795
LIMITING NUTRIENT AT SAMPLING TIME
4/26/74) N ( 7/18/74) N ( 9/13/74) N
OF PHYTOPLANKTON DATA
7/18/74
COUNT GENERA
2039 APHANIZOMFNON
149? OSCILLATORIA
542
181
129
179 OTHER
TOTAL 4567 TOTAL
IV. NUTRIENT LOADING CMARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KG/YR)
4* *0 4 * 4*4 *
4* 0*4*4*4*
OUTLET(S)
(K ,/ YR)
*4* 44*44*0
*4*00*0*0*
0 OTHER
662 TOTAL
0
5482
NON—POINT SOURCE
(KG/YR)
4*04*04*4*
*00 44 0* *4 *
POINT SOURCE
SEPTIC TANKS (KG/YR)
* 4* * *4* * 4*
4 *4*4*444*
LAKE SURFACE AREA LOADING RATE
(G/SQ M/YR)
*4*4*4*0*0
*4*4*4*0*0
- a,
TOTAL LOADING
IKG/YR )
4*4*4*44*4
4*00404*44
0*44 LAKE SAMPLING ONLY 4 *4 *

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COMPENDIUM OF NATIONAL EUTROPHICATIUN SURVEY LAKES IN NORTH DAKOTA
NAME — BRUSH LAKE (EUTROPHIC)
COUNTY — MCLEAN
STORET NO. — 3803 WORKING PAPER NO. 567, NTIS ACCESSION NO. P8—262 871/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(S Q KM) (SQ 1cM) (METERS) (CMS) (YEARS)
NATURAL 0* 0* 4 0* 0*4 0.81 2.5 *0*00*
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEOIAN MEDIAN MEAN SECCnI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
408. 856. 1.3 0.066 0.010 0.095 1.810
III. 8IOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
29.1 *00*00*0*0 1 4/26/74) P ( 7/16/74) N ( 9/13/74) N
SUMMARY i f PHYTOPLANKTON DATA
4/26/74 7/16/74 9/13/74
GENERA COUNT GENERA COUNT GENERA COUNT
CRYPTOMONAS 711 MELOSIRA 6944 ANACYSTIS(MICROCYSTIS) 3680
CHROOMONAS 561 FRAGILARIA 801 FRAGILARIA 1968
ELAKATOTHRIX 75 ANABAENA 431 OOCYSTIS 548
ASTERIONELLA 75 CHROOMONAS 323 CHROOMONAS 255
SYNURA 37 SCHROEDERIA 269 CRYPTOMONAS 218
OTHER 0 OTHER 377 OTHER 546
TOTAL 1459 TOTAL 9151 TOTAL 7215
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 00*0*0 0*0* *4 *0* 0*00* *0*00*00*0 0*00*4*4*0 *0*00*0*0*
NITROGEN *0*0*0*4*4 *4 *44*40*4 *0*00*0*0* *00*0*0*00 0*00*0*00*
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS *4*04*44*0 *44*0 *00*0*4*0*
NITROGEN 0*0*0*0*0* *0*0* *00*00*0*0
0*0* LAKE SAMPLING ONLY *4 0*

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NORTH DAKOTA
NAME — LAKF DARLING (EUTROPHIC)
COUNTY — RENV!LLE.WARD
51011(1 NO. - 3804 WORKING PAPER ND . 568. NTIS ACCESSION NO. P8—261 595/AR
I. MORPHUMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(50 KM) (SO KM) (METERS) (CMS) (YEA RS)
IMPOUNOMENT 8417.50 40.06 3.4 3.274 1.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEOIAN MEDIAN MEDIAN
ALKALINITYIMG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
210. 540. 0.8 0 .214 0.180 0.250 1.560
III. PIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (M5/L——DRY WT)
60.1 1I. — 16.1 ( 2) ( 4/30/74) N ( 7/17/74) N ( 9/13/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/30/74 7/17/74 9/13/74
GENERA COUNT GENERA COUNT GENERA COUNT
CYCLOTELLA 9068 APHANIZOMENON 3959 APHANIZOMENON 13938
CHROOMONAS 585 PHORMIDIUM 2612 ANASAENA 691
CRYPTOMONAS 553 CHROOCOCCUS 891 STEPHANODISCUS 479
CHLAMYDDMONAS 488 CHROOMONAS 247 CHROOMONAS 266
STEPHANODISCUS 130 FLAGELLATES 148 ANACYSTIS(MICROCYSTIS) 53
OTHER 2S9 OTHER 100 OTHER 48 -
a
TOTAL 110e3 TOTAL 8017 TOTAL 15475 — ‘
IV. NUTRIENT LOADING CHARACTERISTICSILAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL IKG/YR) INOUSTRIAL (KG/YR) SEPTIC TANKS IKG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 19090. 19090.
NITROGEN 245400. 245400.
ti. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/Su M/YR)
PHOSPHORUS 10720. 44, 0.48
NITROGEN 163400. 33. 6.1
V. NON—POINT—SOUPCE NUTRIENT EXPOPT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO KM) (MG/U (MG/L) (KG/SQ KM/YR) (Kb/SQ EM/YR)
SOURIS RIVER 3.080 1873.6 0.16 1.849 2. 24.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGEO STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L I
MACKO8EE COULEE 0.163 d.505

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NORTH DAKOTA
NAME - DEVILS LAKE (EUTROPHIC )
COUNTY — BENSON,RAMSEY
STORET NO. — 3805 WORKING PAPER NO. 569. NTIS ACCESSION NO. P8—260 892/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO Kifi (SO KM) (METERS) (CMS) (YEARS )
NATURAL 0 . 0 . 0 0* 0 0* 48.00 2.6 0*0*0*000* 0*00*0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(LJMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(14G/L)
448. 3685. 1.3 0.630 0.469 0.140 3.000
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L (MG/L——DRY ST)
38.5 15.3 4/29/74) N ( 1/16/74) N ( 9/16/14) N
SUMMARY OF PHYTOPLANKTON DATA
4/29/74 7/16/74 9/16/74
GENERA COUNT GENERA COUNT GENERA COUNT
FLAGELLATES 1004 5TEPHANODISCU5 748 APHANIZOMENON 6330
DACTYLOCOCCOPSI5 521 APHANIZOMENON 721 ANACYSTIS(MICRUCYSTIS) 245
LUNATE CELLS 409 ANACYSTIS(MICROCY5TIS) 480 SCHROEDERIA 70
CHROOMONAS 186 PHORMIDIUM 21 OOCYSTIS 35
CRYPTOMONAS 112 SCHROEDERIA 21 STEPHANODISCUS 35
OTHE ’ 446 OTHER 81 OTHER 0
TOTAL d618 TOTAL 2084 TOTAL 6715
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) IKG/YR) (KG/YR)
PHOSPHORUS ***••***0* •**o•ooo•q 00000*oooo *0 0*0000*0
NITROGEN *00*00*00* 00*0*0000* *0*000000* 000 0* 0*0*0 *0*0*0*0*0
S. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS * 0000*000* 00000 0*000*000*
NITROGEN *4*000000* 0* 000 *0*00 0*0*0
**** LAKE SAMPLING ONLY °°°

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NORTH DAKOTA
NAME — JAMESTOWN RESERVOIR (EUTROPHIC)
COUNTY — STUTSMAN
STORET NO. — 380#, WORKING PAPER NO. 570. NTIS ACCESSION NO. PB—261 594/AB
. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (S(1 1(M) (METERS) (CNS) (YEARS)
IMPOUNDMENT 1942.50 4.86 7.5 0.740 1.6
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P1MG/U ORTHO P1MG/I) INORG NIMG/L) TOTAL N(MG/L)
226. 485. 1.6 0.144 0.078 0.365 1.425
III. BIOLOGICAL CHA. ACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL(,AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLIN6 TIME
(U6/L) (MG/L——DRY wT)
19.4 4.4 1 4/26/74) P AND N I 7/17/?4) N 1 9/17/74) P AND N
SUMMARY OF PHYTOPLANKTQN DATA
4/26/74 7/17/74 9/17/74
GENERA COUNT GENERA COUNT GENERA COUNT
CYCLOTELLA 7179 MELOSIRA 4335 CRYPTOMONAS 680
CHROOMONAS 1341 CHROOMONAS 67 CRUCIGENIA 486
ANI (ISTRO DESMUS 1262 SCHROEDERIA 500 APHANIZOMENON 340
SCENEDESMUS 316 CHROOCOCCLJS 133 COCCOID CELLS 291
CRUCIGENIA 237 CRYPTOMONAS 133 ANACYSTISIMICROCYSTIS) 146
OTHER 2287 OTHER 568 OTHER 1067
TOTAL 12622 TOTAL 6236 TOTAL 3010
IV. NUTRiENT LOADIN(, CHARACTER ISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (i G/YR (KG/YR)
PHOSPHORUS OO *O *OOO 15. 4475. 4490.
NITROGEN *000*.Q000 *Q*.o.000. 640. 49830. 50470.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(MG/YR) RETENTION IG/SO M/YR)
PHOSPHORUS 4570. LOSS 0.92
NITROGEN 34875. 31. 10.4
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(045) (SQ 1(M) (MG/L) (MG/L) (KG/SO KM/YR) (KG/SQ KM/YR)
JAMES RIVER 0.540 1776.7 0.2 52 2.752 2. 23.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
IMC,/L) (MG/L)
UNNAMED CREEK HI 0.231 2.455

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COMPENDIUM OF NATIONAL EUTROPHICATION SUI VEY LAKES IN NORTH DAKOTA
NAME — LAIcE LAMOURE (EUTROPHIC)
COUNTY - LAMOURE
STORET NO. - 3807 WORKING PAPER NO. 571, NTIS ACCESSION NO. PB—262 872/AU
. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SQ KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 357.40 2.00 5.0 0.182 1.9
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCi’iI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/I) INORG N(MG/L) TOTAL N(MG/L)
269. 608. 2.0 0.438 0.290 0.380 2.090
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL( AL ASSAY CONTROL YIELD LIMITING NUIRIENT AT SAMPLING TIME
(UG/L) (MG/I——DRY WI)
19.7 18.5 ( 4/29/74) N ( 7/10/74) N 1 9/17/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/29/74 7/10/74 9/17/74
GENERA COUNT GENERA COUNT GENERA COUNT
CYCLOTELLA 5208 RH000MONAS 1772 APHANIZOMENON 2402
ANKISTRODESHUS 2559 CRYPTOMONAS 405 CIIPOOMONAS 129
SYNEDRA 1594 APHANIZOMENON 354 CRYPTOMONAS 43
CHROOMONAS 853 ANABAENA 101
CRYPTOMONAS 539 ANKISTRODESMUS 51
OTHER 1055 OTHER 152 OTHER 0
c.c
TOTAL 11808 TOTAL 2835 TOTAL 2574
I V. NUTRIENT LOADING CHAPACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/VP) INDUSTRIAL (KG/YRP SEPTIC TANKS (KG/VP) (KG/YR) (KG/YR)
PHOSPHORUS 2690. 2690.
NITROGEN 10345. 10345.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 1580. 41. 1.34
NITROGEN 9040. 13. 5.2
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 I M) (MG/ I) (MG/L) (KG/SQ KM/YR) (KG/SQ KH/YR)
COTTONWOOD CREEK 0.110 334.1 0.569 2.717 7. 23.

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COMPENDIUM OF NATIONAL EUTRUPHICATEUN SURVEY LAKES IN NORTH DAKOTA
NAME — MATEJCEK LAKE (EUTROPHIC)
COUNTY — WALSt4
STORET NO. — 3808 WORKING PAPER NO. 572. NTIS ACCESSION NO. P8—261 598/AB
I. I4ORPHOMFTRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SU KP4) (METERS) (CMS) (DAYS)
IMPOUNDMENT 227.90 0.53 4.2 0.107 236.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITYWMHUS) (METE RS) TOTAL P(MG/L) ORTHO P(MG/L) INOPG N(MG/L) TOTAL N(MG/L.)
169. 39R. 0.6 0.228 0.179 0.440 1.360
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALL,AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WI )
2.7 11.2 ( 4/29/74) N ( 7/16/74) N ( 9/lb/ b) N
SUMMARY OF PHYTOPLANKTON DATA
4/29/74 7/16/74 9/16/74
GENERA COUNT GENERA COUNT GENERA COUNT
CRYPTOMONAS 116 SCENEDESMUS 18 FLAGELLATES 135
CHLAMYDOMONAS 93 SPHAEROCYSTIS 18 CRYPTOMONAS 68
GYMNODINIUM 47 APHANIZOMENON 18 APHANIZOMENON 68
ANKISTRODESMUS 23
OTHER 0 OTHER 0 OTHER 0
TOTAL 219 TOTAL 54 TOTAL 271 c
C
IV. NUTRIENT LOADINr, CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL CKG/YR) SEPTIC TANKS (KG/YR) (KG/ bR) (KG/bR)
PHOSPHORUS 800. 800.
NITROGEN *0*000*0*0 *0*0*0*0*0 7450. 7450.
N. OUTPUT
OUTLtT(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/ VP) RETENTION (G/SQ M/YR)
PHOSPHORUS 510. 36. 1.51
NITROGEN 7320. 2. 14.1
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/SQ KM/YR)
MIDDLE R. FOREST RIVER 0.080 176.1 0.234 2.039 3. 30.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(Mfl/L) (MG/L)
UNNAMED CREEK Ri 0.122 2.981

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NORTH DAKOTA
NAME — LAKE METIGOSHE (MESOTROPHIC)
COUNTY — BO lT INEAU
STORET NO. — 3809 WORKING PAPER NO. 573, NTIS ACCESSION NO. P8—259 774/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(50 KM) (SQ KH) (METERS) (CMS) (YEARS)
NATURAL 00*00000*0 3.74 2.8 0*0000*00* 04*00*
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITYCMG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
268. 500. 2.8 0.032 0.010 0.080 1.240
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
10.4 00*0*00*04 ( 1/17/74) N ( 9/13/74) N
SUMMARY ( IF PHYTOPLANKTON DATA
7/17/74 9/13/74
GENERA COUNT GENERA COUNT
FRAGILARIA 797 MELOSIRA 489
CRYPTOMONAS 258 CRYPTOMONAS 245
CHROOMONAS 129 TETRAEDRON 245
SCENEDESMUS 108 DINOBRYON 153
D1NOBRYON 86 MELOSIRA 92
OTHER 497 OTHER 856
TOTAL 1875 TOTAL 2080
IV. NUTRIENT LOADIN(, CHARACT (RISTICStLAKE)
A. INPUT
‘DINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/fl()
PHOSPHORUS *0* 000*00* 0 0*00000*0 0*00*0*00* 4*40 0440*0 4*4 *4 00* 00
NITROGEN *0000040*0 400004*44* 0*00*4*00* 000*00*0*0 *40*444404
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTIOFt (G/SQ M/YR)
PHOSPHORUS 4000400440 0*00 4 0*00*4404*
NI THOGFN 0*040404*0 *4444 4004*04*04
* 4 4 LAKE SAMPLING ONLY °°*

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COMPENDIUM OF NATIONAL EUTWOPHICATIUN SURVEY LAKES IN NORTH DAKOTA
NAME — PELICAN LAKE (MESO—EUTROPHIC)
COUNTY — ROT IINEAU
STORET NO. - 3811 WORKING PAPER NO. 574. NTIS ACCESSION NO. P8—2 59 772/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL iNFLOW RETENTION TIME
(SO 1 (M) (SQ 1 (M) (METERS) (CMS) (YEARS)
NATURAL •** .•*e . . . 0.50 3.1 t***fl
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
28d. 438. 3.4 0.034 0.006 0.070 1.330
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
11.0 2.6 ( 7/17/74) N ( 9/13/74) N
SUMMARY OF PHYTOPLANKTON DATA
7/17/74 9/13/74
GENERA COUNT GENERA COUNT
FRAGILARIA 883 FRAGILARIA 2526
CRYPTOMONAS 321 ANACYSTISIMICROCYSTIS) 450
OSCILLATORIA 321 APHANIZOMFNON 173
ANACYSTIS(MICROCYSTIS) 120 ANARAENA 104
NITZSCHIA 40 CRYPTOMONAS 104
OTHER 0 OTHER 311
TOTAL 1685 TOTAL 3668
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL CKG/YH) SEPTIC TANKS (KG/YR) ( 1 (G/YR) (KG/YR)
PMOSPHORUS *00*0*00*0 00*0*4*04* *4*00*40*4
NITROGEN 4 0*40444*4 4 04 44 440 44 4*44*4*44* 4*44444*00 4*40*4*4*4
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(Kt3/YR) RETENTION (G/SQ M/Y14)
PHOSPHORUS *04*0*4*0* *4*40 *4*4*4*44*
NITROGEN 404*4*4*04 4444* 4*44444*4*
**° LAKE SAMPLING ONLY 4 0 04

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LAKE TYPE DRAINAGE AREA
(50 KM)
IMPOUNDMENT 469825.80
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG,’L) CONDUCTIVITY (UMHOS)
167. 549•
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG h) (MG/L——DRY WT)
6.9 0.1 — 0.3 C 2)
OF PHYTOPLANKTON DATA
7/18/74
COUNT GENERA
857 MELOSIRA
785 SYNEDRA
321 CENTRIC DIATOM
250 OSCILLATORIA
178 FLAGELLATES
608 OTHER
TOTAL 2999 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KG/VP)
17655.
52950.
PHO SPHORUS
NIT I4OGE N
B. OUTPUT
EXPORT
MEAN FLOW
(CMS)
276.800
17. 240
0.410
341.190
0.910
0.030
0.040
PERCENT
RE TENT ION
93.
63.
MISSOURI RIVER
LITTLE MISSOURI RIVER
CHERRY CREEK
YELLOWSTONE RIVER
LITTLE MUDDY RIVER
MOCCASIN CREEK R2
CLARKS CREEK
VI. MEAN NUTWIENT CONCENTRATIONS IN UNGAGED
STREAM NAME MEAN TOTAL P
(Mb/I)
SEAR DEN CREEK 0.208
TOBACCO GARDEN CREEK 0.186
COUNT GENERA
376 FLAGELLATES
376 OSCILLATORIA
301 STEPHANODISCUS
75 CRYPTOMONAS
75 PENNATE DIATOMS
226 OTHER
1429 TOTAL
LAKE SURFACE AREA LOADING RATE
(G/SQ M/YR)
4.49
18.9
COUNT
786
337
262
187
112
226
1910
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NORTH DAKOTA
NAME — LAKE SAKAKAWEA (OLIGOTROPHIC-EUTROPHIC)
COUNTY — DUNN gMCKENZIE ,MCLEANsMERCERqMOUNTRAIL ,WILLTAMS
STORET NO. — 3812 wORKING PAPER NO. Sib. NTIS ACCESSION NO. P8—261 SlI/AB
I. MORPHOMETR’r
SURFACE
AREA
MEAN DEPTH
TOTAL INFLOW
RETENTION
TIME
(SO KM)
(METERS)
(CM S)
(YEARS)
1490.21
18.9
652.930
1.6
MEAN SECCHI DISC
(METFR S)
MEDIAN
TOTAL P(MG/L)
MEDIAN
ORTHO P(MG/L)
MEDIAN
INORG N(MG/L)
MEDIAN
TOTAL N(MG/L)
2.3
0.016
0.007
0.150
SUMMARY
4/30/74
GENERA
STEPHANODISCUS
FLAGELLATES
PENNATE DIATOMS
ASTER IONELLA
CRYPT OMON AS
OTHER
LIMITING NUTRIENT AT SAMPLING TIME
4/30/14) P AND N ( 7/18/14) P AND N C 9/17/74) P AND N
9/17/74
PHOSPHORUS
NITROGEN
V. NON—POINT—SOURCE
STREAM NAME
OUTLET (5)
CKG/YR)
462250.
10446205.
NUTRIENT
INDUSTRIAL (KG/YR)
SEPTIC TANKS (KG/VP) (KG/VP)
(KG/VP)
••..O•00 00
10.
6680100.
6697765.
°°°°°°°••°
455.
28083775.
I - ’
C
ORAINAGE AREA
MEAN TOTAL P
MEAN
TOTAL N
TOTAL P EXPORT
TOTAL N EXPORT
(SQ KM)
(Mb/L)
(MG/L)
(KG/SQ KM/VP)
(KG/SQ KM/YR
238383.5
0.201
0.991
7.
38.
21522.9
0.177
1.474
4.
44.
161.5
0.254
1.651
4.
30.
180730.1
0.507
1.458
26.
84.
2007.2
0.167
2.143
2.
32.
57.0
0.101
1.040
20.
104.
106.2
0.118
1.473
2.
17.
STREAMS
MEAN TOTAL
N
(MG/L)
1.675
1.372

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WHITE EARTH RIVEk 0.220 2.142
LITTLE KNIFE !VER 0.241 .130
SHELL CREEK 0. 1% 2.393
MIDDLE DOUGLAS CWEEK 0. 1 % 2.355
F4ALNOURIE CwEEK 0.0 34 1.211
UNNAMED CREEK N—I 0.122 1.445
UNNAMED CREEK 0—1 0.450 2.882
MOCCASIN CREEK k—I 0.147 1.414

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NORTH DAKOTA
NAME — SPIRITW000 LAKE (EUTROPHIC)
COUNTY — STUTSMAN
STORET NO. — 3813 WORKING PAPER NO. 516, NTIS ACCESSION NO. P8—259 775/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (SU 1(M) (METERS) (CMS) (YEARS)
NATURAL 1.67 8.8 OOOO O**Q*
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCI41 DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL PING/L I ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
376. 2325. 2.1 0.156 0.082 0.290 2.540
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/I——DRY WT)
34.7 9.8 — 15.9 I 2) I 4/26/74) N I 7/17/14) N I 9/17/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/26/74 7/17/74 9/17/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHLAMYDOMONAS 3738 APHANIZOMENON 10245 CHROOMONAS 376
MELOSIRA 1869 ANACYSTIS(MICROCYSTIS) 162 STEPIIANODISCUS 226
CHROOMONAS 353 LYNGBYA 40 CRYPTOMONAS 150
DACTYLOCOCCOPSIS 176 APHANIZOMENON 113
FLAGELLATES 176 ANACYSTISIMICROCYSTIS ) 75
OTHER 670 OTHER 0 OTHER 0
TOTAL 6982 TOTAL 10441 TOTAL 940
IV. NUTRIENT LOADING CIIAPACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (1(6/YR) SEPTIC TANKS (KG/YR) II (G/YR) (KG/YR)
PHOSPHORUS *0*0*00000 *0*00*00*0 0 0 0 00 0 0 0 0 0 •00 *•** ** 090000 0000
NITROGEN 0 0 0 0 0 0 00 0 0 0 0 0 0 00 0 000 .0*0*00*0* *0*00 00000
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(PcG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS *00*00*00* 0 00 00 *000000*00
NITROGEN *0*00*0*00 0 000 0
*00* LAKE SAMPLING ONLY *0*

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NORTH DAKOTA
NAME — SWEET BRIAN LAKE. (EUTROPHIC)
COUNTY — MORTON
STOWET NO. — 36 14 WORKING PAPER NO. 511. NTIS ACCESSION NO, P3 -261 510/AS
1. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO XM l (SQ KM) (METERS) (CMSI (OAYS)
IMPOUNDMENT 393.70 1.10 2.9 0.232 183.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEOIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS ) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/LI TOTAL N(MG/L)
280. 579 . 1.5 0.092 0.031 0.090 1.320
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALOAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
39.0 15.8 ( 4/30/74) N 7/16/14) N ( 9/17/74) N
SUM!kARY OF PHYTOPLANKTON DATA
7/16/74 9/17/74
GENERA COUNT GENERA COUNT
APHAFIZZOMENON 3415 APHANIZOMENON 3997
CHROO MONAS 556 CHROOMONAS 735
CRYPTOMONAS 357 GLOFOTRICHIA 92
ANKISTRQDESMUS 79 SCHROEDERIA 46
COELOSPHAERIUM 46
OTHER 0 OTHER 0
TOTAL 4407 TOTAL 4916
IV. NUTRIENT LOADING CHAPACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KO/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 10. 1875. 1885.
NITROGEN 0 *40*4 *3 *4 420. 23010. 23430.
K. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING HATE
(I
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NAME — WHITMAN LAIE
COUNTY — NELSON.WALSH
STORET NO. — 3815
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA
(SQ KM)
IMPOUNDMENT 111.40
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCTIVITY (UMHOS)
182. 406.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WT)
27.1 3.6 — 28.8 ( 2)
SUMMARY OF PHYTOPLANKTDN DATA
4/29/14 1/16/74
GENERA COUNT GENERA
CP ILAMYDOMONAS 163 ANABAENA
CRYPTOMONAS 122 APHANIZOMENON
MELOSIRA 82 CRYPTOMONAS
NITZSCHIA 82 TRACMELOMONAS
STEPHANODISCUS 82 SCMROEDER IA
OTHER 203 OTHER
TOTAL 734 TOTAL
NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KG/YR)
0• 00 0 00•.0
OUTLET (5)
(KG/YR)
PHOSPHORUS 520.
NITROGEN 5340.
V. NUN—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(CMS)
MIDDLE AR. FOREST RIVER 0.070
LAKE SURFACE AREA LOADING RATE
IG/SO M/YR)
0.83
9.2
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN NORTH DAKOTA
(EUTROPHIC)
WORKING PAPER NO. 578, NTIS ACCESSION NO. PB-260 809/AB
SURFACE AREA
(SQ KM)
0.58
MEAN SECCHI DISC
(METERS)
0.5
MEAN DEPTH
(METERS)
2.7
MEDIAN
TOTAL P(MG/L)
0.260
TOTAL INFLOW
(CMS)
0.081
MEDIAN
ORTHO P(MG/L)
0.185
RETENTION TIME
(DAYS)
255.0
MEDIAN
INORG N(MG/L)
0.260
LIMITING NUTRIENT AT SAMPLING TIME
4/29/14) N ( 7/16/74) N ( 9/16/74) N
9/16/7 4
IV.
COUNT
GENERA
COUNT
1006
APHANIZOMENON
9542
931
ANABAENA
585
782
OOCYSTIS
410
261
DACTYLOCOCCOPS1S
176
186
STEPHANODISCUS
176
1156
OTHER
468
4322
TOTAL
11351
PHOSPHORUS
NITROGEN
B. OUTPUT
MEDIAN
TOTAL N(MG/L)
I • 320
TOTAL LOADING
(KG/YR)
480.
5340.
POINT SOURCE
INDUSTRIAL (KG/YR)
* *0*0 0* 0*0
0*000000*0
PERCENT
RE TENT ION
LOSS
POINT SOURCE
SEPTIC TANKS (KG/YR)
5.
105.
I-a
-j
0.
NON—POINT SOURCE
(KG/YR)
475.
5235.
DRAINAGE AREA
(SO KM)
MEAN TOTAL P
(Mb/L)
MEAN TOTAL N
(MG/L)
TOTAL P EXPORT
(KG/SQ KM/YR)
TOTAL N EXPORT
(KG/SQ KM/YB)
101.0
0.183
1.800
4.
42.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — ALTUS RESERVOIR (EUTROPHIC)
CUUNTY — GREER, KIOi4
STONET NO. — 4001 WORKING PAPER NO. 581. NTIS ACCESSION NO. P8—269 537/AG
I. MORPI4OMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ 1 (M) (50 KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 5480.40 25.4 ) 6.4 4,090 2.1
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHDS) (METERS) TOTAL P(MG/L) ORTHO PMG/L) INORG N(MG/L) TOTAL N(MG/L)
143. 2019, 0.8 0.041 0.010 0.060 0.630
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L—DRY WT)
14.8 0.5 — 4.0 ( 2) C 3/29/74) N C 6/10/74) N (10/24/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/29/14 6/10/14 10/24/14
GENERA COUNT GENERA COUNT GENERA COUNT
OSCILLATORIA 7319 OSCILLATORIA 1330 NAVICULA 4928
CHROOMONAS 232 CHROOMONAS 272 OSCILLATORIA 1437
CARTERIA 155 CARTERIA 242 CENTRIC DIATOM 667
DACTYLOCOCCOPSIS 77 ANACYSTIS(MICROCYSTI5) 242 CRYPTOMONAS 205
STEP I IANODISCUS 77 MERISMOPEDIA 212 LYNGSYA 205
OTHER 117 OTHER 664 OTHER 309
TOTAL 7911 TOTAL 2962 TOTAL 7751
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 5. 10100. 10705.
NITROGEN 120. 902625. 902745.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 3910. 63. 0.42
NITROGF ’ 96825. 89. 35.5
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOS DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (Mb/L) (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
NORTH FORK RED RIVER 3.820 5185.2 0.088 1.894 2. 165.
LAKE CREEK 0.110 107.0 0.086 2.292 3. 76.
vl. MEAN NUTRIENT CONCENTRATIONS iN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
UNNAMED STREAM C l 0.208 2.704

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — ARBUCKLE LAKE (MESOTROPHIC )
COUNTY — MURRAY
STORET NO. — 4002 WORKING PAPER NO. 582. NTIS ACCESSION NO. P8—268 295/AR
I. MORPHOMETRY
LAKE TYPE DI IAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM (SQ KMI (METERS ) ICMSI (Y EARS)
IMPOUNDMENT 326.30 9.5 ) 9.4 1.340 3.2
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG NIMG/L) TOTAL N(MG/L)
158. 379. 1.4 0.020 0.008 0.070 0.440
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY Wfl
7.0 0.2 — 0.3 ( 2) ( 3/30/14) N 1 6/12/74) P (10/23/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/30/74 6/12/74 10/23/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 11759 MELOSIRA 478 MELOSIRA 196
CHROOMON AS 450 PEDIASTRUM 191 OOCYSTIS 164
CYCLOTELLA 450 CRYPTOMONAS 143 SCENEDESMUS 146
CRYPTOMONAS 250 ANABAENA 95 ANABAENA 98
SCENEDESMUS 200 MOUGEOTIA 95 CHROOMONAS 98
OTHER 451 OTHER 287 OTHER 550
TOTAL 13560 TOTAL 1289 TOTAL 1260
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SUUKCE POINT SOURCE POINT SOURCE NON-POiNT SOURCE TOTAL LOADING
MUNICIPAL IKG/YR) INDUSTRIAL 1KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (IcG/YRI
PHOSPHORUS *00*0*000 00 0 00 0 0 0 0 0 •00oo•*•0• 3810. 3810.
NITROGEN 00 00 00 000 0 0 000 00 00 00 *0*0000*00 61220. 61220.
B. UUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/ fR) RETENTION (G/SQ H/VP)
PHOSPHORUS 88 . 77. 0.40
NITROGEN 28905. 53. 6.4
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) (SQ KM) (MG/L) (MG/ U (KG/SO KM/YR) (KG/SQ KM/YR)
ROCK CREEK 0.4fl 101.8 0.095 0.944 11. 123.
GUY SANDY CREEK 0.340 89.1 0.095 1.501 12. 179.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/ l i
BUCKHORN CREEK 0.106 1.403

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — LAKE ELSWORTM (EUTROPHIC)
COUNTY — CADDO. COMANCHE
STORET NO. — 4003 WORKING PAPER NO. 583. NTIS ACCESSION NO. P8—268 381/AR
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TINE
(SQ KM) (50 sM) (METERS) CMS) (YEARS)
IMPOUNDMENT 642.30 22.66 5.1 4.260 1.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
150. 367. 1.0 0.037 0.009 0.070 0.620
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
8.4 0.1 ( 4/ 1/74) N ( 6/10/74) P (10/24/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/ 1/74 6/10/74 10/24/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 2532 CARTERIA 1805 CARTERIA 1352
CRYPTOMONAS 1080 CHLAMYDOMONAS 790 MELOSIRA 230
ANKISTRODESMUS 675 CRYPTOMONAS 564 STEPHANODISCUS 201
SYNEORA 405 STEPHANODISCUS 489 CHROOMONAS 115
MELOSIRA 33M ANKISTRODESMUS 188 OOCYSTIS 86
OTHER 101 OTHER 977 OTHER 144
TOTAL 5131 TOTAL 4813 TOTAL 2128
IV. NUTRIENT LOADIN6 CHAPACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL CKG/YR) S&TIC TANKS (KG/YR) (KG/YR) IKG/YR)
PHOSPHORUS 1980. *Ott**t*•* 5. 3510. 5495.
NITROGEN 4480. 160. 158970. 163610.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 466S. 15. 0.24
NITROGEN 8963 5. 45. 7.2
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) (SQ KM) (MG/L) (MG/L) (KG/SQ KM/YR) (KG/SU KM/YR)
EAST CACHE CREEK 1.020 164.2 0.044 0.967 8. 210.
CHANDLER CREEK 0.150 26.9 0.039 1.020 3. 183.
MISSION CREEK 0.230 40.9 0.035 1.6d7 6. 255.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
TAHOE CREEK 0.196 3.905

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — LAKE EUFAULA (EUTROPHIC)
COUNTY — wASKELL. MCINTOSH, OKMULGEE. PITTSAURG
STORET NO. — 4004 WORKING PAPER NO. 584, NTIS ACCESSION NO. PB-269 540/48
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ KM) (METERS) (CMS) (DAY5)
IMPOUNDMENT 97958.90 414.81 10.1 181.730 309.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMPIOS (METERS) TOTAL P(MGIL) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
8R. 382. 0.4 0.081 0.029 0.405 0.810
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(U6/L) (tlG/L——ORY WT)
4.4 1.1 — 13.2 ( 2) ( 4/ 1/74) N C 6/13/74) N C 8/28/74) N (10/22/74) N
SUMMARY OF PHVTOPLANKTON DATA
4/ 1/74 6/13/74 8/28/74 10/22/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 355 CHROOMONAS 351 MELOSIRA 1097 CHROOMONAS 817
SCENEDESMuS 355 STEPHANODISCUS 292 5TEPHANOOISCUS 240 CHLAMYOO 1OI4AS 371
CYCLOTELLA 133 CRYPTOMONAS 263 CHROOMONAS 206 CENTRIC DIATOM 297
ANKISTRODFSMUS 89 CHLAMYDOMONAS 88 ANA8AENA 69 CRYPTOMONAS 223
SKELETONEMA 89 CARTERIA 58 SCHROEDERIA 69 MELOSIRA 99
OTHER 532 OTHER 321 OTHER 306 OTHER 49
tOTAL 1553 TOTAL 1373 TOTAL 1987 TOTAL 1856
IV. NUTRIENT LOADING CHARACTER!STTCS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/vP) INDUSTRIAL (KG/vP) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHOR uS 429755. 10. 1297140. 1726905.
NITROGEN 868285. QO*000000* 270. 10349635. 11218190.
th OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION ((,/SQ M/YR)
PHOSPHORuS 1084280. 37. 4.16
NITROGEN 10392320. 7. 27.0
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAMF MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P E .PORT TOTAL N EXPORT
(CMS) (SO 1 (M) (MG/L) ( ‘(GIL) (KG/SQ KN/YR) (KG/SQ KMIYR)
CANADIAN RIVER 51.100 59961.1 0.378 2.781 5. 70.
GAINES CREEK 3.180 336.? 0.054 0.786 15. 256.
NORTH CANADIAN RIVER 20.210 24322.7 0.976 3.270 26. 89.
DEEP FORK 23.170 5327.6 0.321 2.143 40. 284.
VI. MFAN NUTRTENT CONCENTRATIONS TN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
LONGTUWN CREEK 0.025 0.909
8RUSHY CPFFK • 0.245 1.207
COAL CREEK • 0.104 1.53 1 1
MILL C’ EFK 0. OR O 1.b94
* R LOw POINT SOURCE.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — FOIeT COBB RESERVOIR (EUTROPHIC)
COUNTY — CA 000
STORET NO. — 4008 WORKING PAPER NO. 585. NTIS ACCESSION NO. P8—269 564/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(50 KM) (SQ KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 787.40 16.47 6.4 1.230 7.6
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITYMG/L CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
157. 450. 1.1 0.038 0.012 0.110 0.760
I l l. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD L1MITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
15.0 0.1 — 3.2 2) ( 4/ 1/74) N ( 6/11/74) N (10/24/T4) N
SUMMARY OF PHYTOPLANKTON DATA
4/ 1/74 6/11/74 10/24/74
GENERA COUNT GENERA COUNT GENERA COUNT
CENTRIC DIATOM 2443 CARTERIA 1138 CHROOMONAS 268
CHROOMONAS 1800 CHROOMONAS 793 COSCINODISCUS 268
CRYPTOMONAS 193 CRYPTOMONAS 758 OSCILLATORIA 246
DINOBRYON 161 STEPHANODISCUS 552 ANABAENA 112
ANKISTRODESMUS 129 MELOSIRA 344 COELOSPHAERIUM 112
OTHER 353 OTHER 1448 OTHER 379
TOTAL 5079 TOTAL 5033 TOTAL 1385
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 260. 5. 9105. 9370.
NITROGEN 775. 115. 105525. 106415.
3. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 590. 94. 0.57
NITROGEN 16100. 85. 6.5
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) (50 1 (M) (MG/L) (MG/L) (KG/SO KM/YR) (KG/SU KM/YR)
COBB CREEK 0.570 341.9 0.223 2.448 12. 126.
SPRING CREEK 0.210 134.7 0.223 1.983 10. 103.
WILLOW CREEK 0.070 42.7 0.2 68 2.114 14. 110.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — FORT SUPPLY RESERVOIR (EUTROPHIC)
COUNTY — WOODWAI4D
STORET NO. — 4006 WORKING PAPER NO. 586, NTIS ACCESSION NO. PB—268 378/AB
I. MORPHOM TPy
LAKE TYPE DRAINAGE AREA SURFACE AREA M(AN DEPTH TOTAL INFLOW RETENTION TIME
(SQ ( CM) (SQ (CM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 3869.50 7.61 11.9 2.310 3.6
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN S(CCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(HGIL) CONDUCTIVITY WMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(tlG/L)
184. 797. 0.4 0.070 0.014 0.135 0.690
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
9.7 ( 3/29/74) N ( 6/10/74) N (10/24/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/29/74 6/10/74 10/24/74
GENERA COUNT GENERA COUNT GENERA COUNT
KIRCHNERIELLA 3098 OOCYSTIS 682 STEPiANODISCIIS 557
ANACVSTIS(MICROC YSTI S) 634 CHLAMYDOMONAS 243 ANACYSTIS(MICROCYSTIS) 381
OOCYSTIS 453 CHROOMONAS 195 CILAMYDOMONAS 352
OSCILLATORIA 42? STEPHANODISCUS 195 OOCYSTIS 352
CHROOMONAS 352 ANKISTRODESMUS 146 CHROOMONAS 264
OTHER 1197 OTHER 243 OTHER 588
TOTAL 6196 TOTAL 1704 TOTAL 2494
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 ((CG/YR) (KG/YR) (KO/YR)
PHOSPHORUS 980. 5. 2335. 3320.
NITROGEN 2930. 105. 49440. 52475.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 2670. o. 0.44
NITROGEN 60715. LOSS 6.9
V. NON—POINT—SOURCE NUTRIENT EXPOPT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO (CM) (I4G/L) (M6/L) (KG/SO KM/YR) (KG/SO KM/YR)
WOLF CREEK 2• 1 0 3589.7 0.038 0.837 0.5 9.
BOGGY CREEK 0.090 138.6 0.063 1.583 2.° 32.°
UNNAMED CREEK 0.020 23.6 0.060 1.704 1. 36.
EIGHIMILE CPEEK 0.020 33.9 0.082 1.413 1. 29.
VI. MEAN NUTRIENT CONCENTRATIONS 1N UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
TURKEY CREEK 0.077 1.736
TWENTYMILE CREEK 0.092 1.071
* ESTIMATED

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — FOSS RESERVOIR (EUTROPHIC)
COUNTY — CUSTER
STORET NO. — 4007 WORKING PAPER NO. 587, NTIS ACCESSION NO. P8—269 479/A8
I. MORPHOMFTRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SQ 1 cM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 3859.10 35.61 8.9 2.890 43.7
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
151. 1879. 0.9 0.027 0.006 0.090 0.700
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
4.9 0.1 — 0.2 ( 2) ( 3/29/74) N ( 6/10/74) P (10/24/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/29/74 6/10/74 10/24/74
GENERA COUNT GENERA COUNT GENERA COUNT
DACTYLOCOCCOPSIS 1029 OSCILLATORIA 555 OSCILLATORIA 2864
SYNEDRA 616 ANKISTRODESMUS 149 OOCYSTIS 92
OSCILLATORIA 412 MERISMOPEDIA 85 RAPHIDIOPSIS 69
ANKISTRODESMUS 235 CHROOMONAS 64 TETRAEDRON 69
NAVICULA 147 MOUGEOTIA 64 ANKISTRDDESMUS 23
OTHER 295 OTHER 321 OTHER 116
TOTAL 2794 TOTAL 1238 TOTAL 3233
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 J
PHOSPHORUS 370. 5. 9300. 9675.
NITROGEN 1105. 160. 193865. 195130.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 0.27
NITROGEN 5.5
V. NON—POINT—SDUPCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (Mb/U (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
WASI ITA RIVFR 2.190 3120.9 0.109 1.653 2. 38.
QUARTERMASTER CREEK 0. 430 455.8 0.084 1.615 4. S3.
VI. MEAN NUTRIENT CONCENTRAIIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(M( /L) (Mb/L)
PANrHER CREEK 0.230 1.830
wILD HORSE CREEK 0.015 2.8 49

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME - LAKE FRANCES (EUTROPHIC)
COUNTY — ADa IR
STORET NO. — 4008 WORKING PAPER NO. 588, NTIS ACCESSION NO. P8—268 267/AS
1. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SO K I ll (METERS) (CMS ) (DAYS)
IMPOUNDMENT 1644.60 2.31 1.8 16.470 3.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN $4EDIAN I4EOIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ONTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L3
99. 189. 0. 4 0.142 0.093 1 .780 2.135
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
tUG /L I (MG/L——DRY T)
8.0 22.1 — 31.5 ( 2) ( 41 3174) N ( 6/14/14) P (10/18/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/ 3/14 6/14/74 10/18/14
GENERA COUNT GENERA COUNT GENERA COUNT
SYNEDRA 416 MELOSIRA 103 CYCLOTELLA 1745
CENTRIC DIATOM 449 CRYPTOMONAS 62 SKELETONEMA 1325
CHROOMONAS 264 ANABAENA 41 CRYPTOMONAS 517
ASTER IONELLA 211 APHANIZOMENON 21 MELOSIRA 420
MELOSIRA 185 ASTERIDNELLA 21 NITZSCHIA 259
OTHEk 424 OTHER 0 OTHER 420 1’—’
I -
TOTAL 2009 TOTAL 248 TOTAL 4686
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUN iCIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 595. 400 *00000 *0*00*4*4 84185. 84780.
NITROGEN 1785. •0* 4 00 0 o0 •t*oo•*.e. 1326215. 1328000.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/yR)
PHOSPHORUS 66540. 22. 36.70
NITROGEN 1069760. 19. 574.9
V. NON—POINT—SOURCE NUIRIENT EZPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EM’ORT TOTAL N EXPORT
(CMS) (SO KM) (MG/L) (M6/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
ILLINOIS RIVER 13.540 1352.0 0.179 2.603 56. 831.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/I) (MG/LI
BALLARD CREEK 0.092 2.169

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III. BIOLOGICAL CHARACTEPISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/LI (MG/L-—ORY WI)
6.8 2.0 — 6.2 ( 3
OF PHYTOPLANKTON DATA
6/14/74
GENERA COUNT GENERA
CHROOMONAS 306 STEPHANODISCUS
CENTRIC DIATOM 219 I4ELOSIHA
MELDS IRA 223 CHLAhIYOOMONAS
SCENEDESMUS 112 NITZSCHIA
MICRACTINIUM 111 CHROOMONAS
OTHER 139 OTHER
TOTAL 1170 TOTAL
IV. NUTRIENT LOAflIN(, CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KG/YR)
PHOSPHORUS 34600.
NITROGEN 951 5.
8. OUTPUT
OUTLET(S)
(KG/YR)
PHOSPHORUS 684480.
NITROGEN 1015718t .
V. NON—POINT—SOURCE NUTRIENT EXPORT
SrREAM NAME MEAN FLOW DRAINAGE AREA
(CMS) (SO I M)
rIEOSHO RIVER 100.550 15218.8
HORSE CREEK 0.460 64.5
TAR CREFic o.cco
SPRING RIVER 51.R10 66M2.2
LUST CREEK 1.6b0 233.4
8UFFALO CREEK 1.900 250.5
ELK RIvER 21.360 2258.5
HONEY CREEK O.RR O 1 4.1
VI. MEAN NUTRIENT CO,’ CENTkAT EONS IN UNGAGED STREAMS
STRIAM NAME MEAN TOTAL P MEAN TOTAL N
1MG/I) (MG/I)
U(,EECHEE CREEK 0.117 1.1R I
POINT SOURCE
SEPTIC TANKS (KG/YR)
60.
2335.
LAKE SURFACE AREA LOADING RATE
(G/SO M/YR)
6.90
7 .2
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — GWND L X 0’ THE CHEROKEFS (EUTROPHIC)
COUNTY — HAYES, DELAWARE, CRAIG. OTTOWA
STONET NO. — 4009 WORKING PAPER NO. 589. NTIS ACCESSION NO. P8—268 266/A8
I. MORPI4OMETRY
LAKE TYPE DRAINAGE AREA
(SO X I I)
IMPOUNDMENT 26671.50
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/I) CONDUCTIVITY (UMHOS)
97. 253.
SURFACE AREA
MEAN DEPTH
TOTAL INFLOW
RETENTION TIME
(SQ XII)
(METERS)
(CMS)
(DAYS)
188.18
10.9
194,680
129.0
MEAN SECCiII DISC
(METERS)
0.8
MEDIAN
TOTAL P(MG/L)
0.087
SUMMARY
4/ 2/74
MEDIAN
ORTHO P(MG/L)
0,038
MEDIAN
INORG N(MG/L)
0.740
LIMITING NUTRIENT AT SAMPLING TIME
4/ 2/74) P ( 6/17/74) P ( 8/29/74) P
MEDIAN
TOTAL N(P4G/L)
1.130
(10/21/74) P
8/29/74 10/21/74
COUNT
GENERA
COUNT
GENERA
COUNT
1387
OSCILLATORIA
1430
I4ELOSIRA
413
1040
MELOSIHA
786
CHROOMONAS
275
231
CHROOMONAS
286
FLAGELLATES
184
116
SI(ELETONEMA
191
ANKISTRODESMUS
66
92
ANKISTRODESMUS
167
CRYPTOI4ONAS
46
648
OTHER
929
OThER
344
3514
TOTAL
3789
TOTAL
1308
POINT SOURCE
INDUSTRIAL (XG/YRP
12585.
4025.
PERCENT
RElENT ION
47.
25.
NON—POINT SOURCE
(KG/YR)
1250605.
13481690.
—
TOTAL LOADING
(KG/YR)
1297850.
13583175.
MEAN
TOTAL P
MEAN
TOTAL N
TOTAL P EXPORT
TOTAL
N EXPORT
(Mb/I)
(MG/L)
(KG/SO KM/YR)
(KG/S W XM/YRP
0.249
1.975
53.
437.
0.455
2.577
77.
595.
1. S lb
5.484
170.
680.
0.24R
2.955
55.
711.
0.0 2
1.6 8
10.0
375.°
0.027
1.334
6.
325.
0.039
1.374
12.
435.
0.050
1.639
11.
364,

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SYCMIORE CREEK 0 .038 2.248
* ESTIMATED
-J

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — LAKE HEFNEW (EUTROPHIC)
COUNTY — OKLAHOMA
STORET NO. — 4010 WORKING PAPER NO. 590, NTIS ACCESSION NO. PB—269 265/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SO KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 25.10 10.12 9.1 1.520 2.9
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(NG/L) CONDUCTIVITY WMNOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INOPG NCMG/L) TOTAL N(MG/L)
140. 811. 1.0 0.057 0.036 0.250 0.710
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YiELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
5.7 3.0 — 5.0 ( 2) ( 3/29/74) N C 6/11/74) N (10/24/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/29/74 6/11/74 10/24/74
GENERA COUNT GENERA COUNT GENERA COUNT
CYCLOTELLA 74 CHROOMONAS 507 CHROOMONAS 556
OOCYSTIS 55 ANACYSTIS(MICROCYSTIS) 434 COELOSPHAERIUM 75
CHROOMONAS 18 ANA8AENA 181 STEPHANODISCUS 68
CYCLOTELLA lB OOCYSTIS 181 DACTYLOCOCCOPSIS 31
NITZSCHIA 18 SCHROEDEPIA 72 TETRASTRUM 25
OTHER 0 OTHER 147 OTHER 102
TOTAL 183 TOTAL 1522 TOTAL 857
IV. NUTRII.NT 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 4535• 4535•
NITROGEN 61470. 61470.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 950. 79. 0.45
I .ITWOGFN 54640. 11. 6.1
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) (SQ 1 (M) (MG/L) (MG/L) (KG/SO KM/YR) (KG/SQ KM/YR)
ILUFF CREEK CANAL 1.480 **Q******* 0.121 1.794
VI. MEAN NUTkIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(Mb/L) (MG/L)
UNNAMED CREEK Cl 0.089 1.205
C 1ISHULM CREEK 0.073 6.320

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — KEYSTONE RESERVOIR (EUTROPHIC)
COUNTY — TULSA. OSAGE. CREEK, PAWNEE
STORET NO. — 4011 WORKING PAPER NO. 591, NTIS ACCESSION NO. P9—269 478/AB
I. MORPHOMETRy
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SO ‘ CM) (METERS) (CMSJ (DAYS)
IMPOUNDMENT 162673.40 106.43 7.1 119.130 55.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITy(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(M6/L) TOTAL N(MG/L)
114. 1293. 0.4 0.136 0.096 0.690 1.200
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY wT)
21.4 4.9 — 17.9 ( 4) ( 4/ 2/74) N 1 6/12/74) N ( 8/29/74) N (10/23/14) N
SUMMARY OF PHYTOPLANKTON DATA
4/ 2/74 6/12/74 8/29/74 10/23/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CENTRIC DIATOM 2146 CHROOMONAS 344 CENTRIC DIATOM 1086 SKELETONEMA 4551
CHROOMONAS 503 CRYPTOMONAS 238 CHRYSOPHYTAN CELLS 126 CMLAMYDOMONAS 3519
CHRYSOPHYTAN CELLS 450 CYCLOTELLA 106 NAVICULA 51 CYCLOTELLA 2874
ANKISTRODFSMUS 265 CHLAMYOOMONAS 53 CHLAMYDOMONAS 51 ANKISTRODESMUS 461
NIT ZSCHIA 264 SKELETONEMA 53 CHROOMONAS 25 CHRYSOPHYTAN CELLS 295
OTHER 797 OTHER U OTHER 303 OTHER 1234
TOTAL 4425 TOTAL 794 TOTAL 1642 TOTAL 12934
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
ê OINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/yP INDUSTRIAL (KG/Ye)) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 22765. 10. 1731070. 1753845.
NITROGFN 63960. 395. 14225225. 14289580.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(Kb/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 785740. 55. 16.48
NITROGEN 8746810. 39. 134.3
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) (S i) ‘CM) (MG/U (MG/U (KG/SQ KM/YR) (KG/SQ KM/YR)
ARKANSAS RIVER 130.400 123524.8 0.356 2.759 11. 92.
HELLROARING CREEK 0.080 27.7 0 .042 1.250 4. 126.
CIMARRON PIVER 34.370 34900.2 0.365 2.077 11. 63.
LAGOON CREEK 0.450 123.3 0.075 1.312 8. 158.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGE(J STWEAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/U
RANCH CRFFK 0.069 1.345
SALT CREEK 0.080 1.068
COUNCIL CREEK 0.071 1.182
TIGER CRFFK * 0.3 Q7 1.672
EUCP’EE CREEK • 0.160 1.d53

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S$ULL CRFFK * 0.142 8.059
* F3FLOW POINT SOURCE.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — OOLOGAH RESERVOIR (EUTROPHIC)
COUNTY — NOWATA. RO 6EPS
STORET NO. — 4012 wORKING PAPER NO. 59d, NTIS ACCESSION NO. P8—268 375/AR
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SO KM (METERS) (CMS) (DAYS)
IMPOUNDMENT 11237.10 119.22 5.7 71.740 109.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINIIY(MG/I) CONDUCTIVITY(UNHOS) (METERS) TOTAL P(MG/L) ORTHD P(MG/L) INORG N(MG/L) TOTAL NIMG/L}
109. 301. 0.4 0.059 0.031 0.580 0.940
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLORDPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
5.1 1.8 — 13.4 ( 3) ( 4/ 2/14) P ( 6/13/74) P ( 8/29/74) P (10/21/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/ 2/14 6/13/14 8/28/14 10/21/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 494 MELOSIRA 86 MELOSIRA 567 CHROOMONAS 3783
CRYPTOMONAS 380 NIT7SCHIA 86 CRYPTOMONAS 177 CYCLOTELLA 408
MELOSIRA 228 SCENEDESMUS 29 STEPHANODISCUS 142 CRYPTOMONAS 190
DACTYLOCOCCOPSIS 76 CHROOMONAS 71 MELOSIRA 163
SKELETONEMA 7$. SKELETONEMA 71 SKELETONEMA 163
OTHER 39 OTHFR 0 OTHER 142 OTHER 327
TOTAL 1293 TOTAL 201 TOTAL 1170 TOTAL 5034
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL IKG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 8330. 15. 403115. 411460.
NITROGEN 19895. 515. 4217805. 4238215.
U. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/VP) RETENTION (6/SQ M/YR)
PHOSPHORUS 159a8 . 61. 3.45
NITROGEN 3743220. 12. 35.5
V. NUN—POINT—SOURCE NUTRIENT EXPDPT
STREAM NAME MEAN FLOW nRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO KM) (M( ,/I) (MG/L) (KG/SO KM/VA) (KG/SQ KM/VA)
VERDIGRIS RIVER 62.500 9585.6 0.200 1.960 41. 396.
WOLF CREEK 1.330 238.0 0.044 1.165 8. 194.
VI. MEAN NUTRIENT CUNCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/I)
PANTHER CREEK 0.056 1.328
BRUSH CREEK 0.044 I. 96
BIG CHEEK 0.083 1.416
EAST FORK RIG CWEEK 0.040 1.303
MORMAN CREEK D.048 1.396

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GENE WA
STEP HANODISCUS
MELOS IRA
C HR 00 MONA S
C Y CL U TE LL A
Cw YPT OH ONA S
OW
TOTAL 2744
I v. NUTRIENT LOADING CHARACTERISTICS
A. INPUT
POINT SOURCE
MUNICIPAL (KG/VP)
PHOSPHORUS P ,970.
NITROGEN i4410.
H. OOTPOT
OUTLET(S )
(KG/YR)
PHUSPiiORU5 59305.
NITROGEN dO lOdPO.
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(CMS)
ILLINOIS RIVER 23.6R0
dARkEN FORK 8.450
VI. MEAN NUTWIEC4T CONCLNTWATIUNS IN UNGAGED
STRhAM NAME MEAN TOTAL P
AMG/L)
PINE BRANCH CREEK 0.048
LAKE SURFACE AREA LOADING RATE
(6/SO M/YR)
2.13
50.7
I)IEAINAGE AREA
(SI) KM)
2483.o
195.1
ST RE A MS
MEAN TOTAL N
(MG/ U
1.12?
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — TENKILLER FERRY RES. (EUTROP HIC)
COUNTY — CHEROKEE. SE000YAH
STORET NO. — 4013 WORKING PAPER NO. 593. NTIS ACCESSION ND. PB—268 380/AG
I. MORPHOMETRY
(SO
KM)
(METERS)
(C l (S)
(DAYS)
51.19
15.5
41.170
240.0
MEAN SECCHI DISC
MEDIAN
MEDIAN
MEDIAN
(METERS)
TOTAL P(MG/L)
ORTHO PU4G/L)
INORG
N(MG/L)
1.6
0.039
0.016
0.550
LAKE TYPE DRAINAGE AREA
(SD KM)
IMPOUNDMENT 4169.90
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN 4LDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHO5)
75. 147.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY NT)
6.6 5.2
SUMMARY OF PHYTDPLANKTON DATA
4/ 3/74 6/14/74
COUNT GENERA
1685 CYCLOTELLA
481 MELOSI WA
289 CRYPTOM ONAS
9 ’S CHLAMYDOMONAS
48
145 OTMFR
TOTAL
(LAKE)
POINT SOURCE
INDUSTRIAL (KG/VP)
**00 0009O
PERCENT
WE TENT ION
46.
20.
LIMITING NUTRIENT AT SAMPLING TIME
4/ 3/74) P ( 6/14/74) P
8/30/74
8/30/74) P
MEDIAN
TOTAL N(MG/L)
0.900
(10/21/74) P
10/21/74
COUNT
GENERA
COUNT
GENERA
COUNT
369
ACHNANTHES
873
MELOSIRA
1707
276
RAPHIOIOPSIS
457
CYCLOTELLA
443
184
SYNEDRA
416
CHROOMONAS
316
46
STEPHANODISCUS
NITZSCHIA
374
333
ANKISTRODESMUS
TETRAEDRON
253
190
0
OTHER
666
OTHER
695
875
TOTAL
3119
TOTAL
3604
POINT
SOURCE
NON-POINT SOURCE
TOTAL LOAOING
SEPTIC
TANKS (KG/YR)
20.
705.
(KG/YR)
92060.
2561835.
(KG/YR)
109050.
2596950.
IC
IC
MEAN
TOTAL P
MEAN
TOTAL N
TOTAL P EXPORT
TOTAL N EXPORT
(MG/L)
(MG/L)
(KG/SQ KM/YR)
(KG/SQ KN/YR)
0.092
2.230
28.
705.
0.036
1.6 27
11.
547.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — LAKE THUNDERBIRD (EUTROPHIC)
COUNTY — CLEVELAND
STORET NO. — 4014 WORKING PAPER NO. 594. NTIS ACCESSION NO. P9—268 355/AD
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SO KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 662.30 24.56 6.0 1.8 40 14.6
I i. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUC IIVITY(IJMHOS) (MET ERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
180. 3t5. 0.9 0.027 0.009 0.150 0.675
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY wT)
8.4 0.1 — 0.2 ( 2) ( 3/30/74) P ( 6/11/74) P (10/23/74) N
SUMMARY OF PHYTOPLANItTON DATA
3/30/74 6/11/74 10/23/14
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 5715 CHROOMONAS 1366 MELOSIRA 738
ASTEHIONELLA 344 CRYPTOMONAS 352 HERISMOPEO IA 221
CHROOMONAS 1)5 IRACHELOMONAS 132 CHROOMONAS 184
KIRCHNERIELLA 115 ANABAENA 44 CHLAMYDOMONAS 111
CRYPTOMONA5 16 CLOSTERIUM 44 ANACYSTIS(MICROCYSTIS 111
OTHER 153 OTHER 0 OTHER 295
I . ’ )
TOTAL 657A TOTAL 1938 TOTAL 1660
IV. NUTRIENT LOAOING CHARACTERISTICS(LA,cE)
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 Q•Ot*t*t*• 5. 7875. 7880.
NITROGEN 265. 105475. 105740.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 440. 94. 0.32
NITROGEN 8235. 92. 4.3
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW ORAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO KM) (MG/LI (MG/L I (KG/SO KM/YI1) (KG/SO KM/YR)
LITTLE RIVER 0.670 230.5 0.225 1.616 20. 167.
HOG CREEK 0.300 101.2 0.101 1.342 8. 98.
ROCK CREEK 0.070 29.o 0.114 1.430 7. 113.
DAVE SLUE CREEK 0.070 28.0 0.017 1. laO 5. 88.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/LI (MG/LI
PIG CREEK 0.091 0.939
UNNAMED STREAM Fl 0 .047 0.858

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN OKLAHOMA
NAME — WISTER RESERVOIR (EUTROPHIC)
COUNTY — LEFLORE
STORET NU. - 4015 WORKING PAPER NO. 595. NTIS ACCESSION ND. P0—268 294/AB
I. MORPHOM TRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (50 1 (M) (METERS) (CMS) (DAYS)
IMPOUNDMENT 2510.70 16.19 2.3 28.180 16.D
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONUUCTIVITV(UMHO5) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
16. 47. 0.5 0.080 0.016 0.230 0.645
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
4.8 0.9 — 2.5 ( 2) ( 3/28/74) N ( 6/ 7/74) P ( 8/26/74) N (10/21/74) P
SUMMARY OF PHYTOPLAN1(TON DATA
3/28/ 74 6/ 7/74 8/26/74 10/21/74
GENERA COUNT GENERA COUNT bENERA CDUNT GENERA COUNT
MELOSIRA 488 MELOSIRA .3422 MELOSIRA 344 MELOSIRA 2479
ANKISII400ESMUS 325 FLAGELLATES 54 ANABAENA 31 DACTYLOCOCCOPSIS 303
CHROOMONAS 293 NITZSCHIA 9b ANKISTRODESMUS 31 NITZSCMIA 220
CRYPTOMONAS 163 COELASTRUM 32 CLOSTERIUM 31 KIRCHNERIELLA 138
FLAGELLATES 65 CRYPTOMONAS 31 CRYPTOMONAS 83
OTHER 358 OTHER 0 OTHER 187 OTHER 494 à
c c
TOTAL 1692 TOTAL 3803 TOTAL 655 TOTAL 3717
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/VP)
PHOSPHORUS 2835. 5. 43885. 46725.
NITROGEN 8 O0. 140. b55650. 664290.
14. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 5814 . LOSS 2.89
NI IROGFN l9115 . LOSS 41.0
V. NON—Ii)INT—SO(JRCE NUTRIENT ExPORT
STREAM NAME MEAN FLOw DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (50 1 (M) (Mb/LI (Mb/L I (KG/SO KM/VP) (KG/SQ KM/YR)
POTEAU RIVER 14.910 1320.9 0.047 0.728 16. 273.
OIL HRANCH 0.040 4. 5 0.028 0.793 6. 181.
HOLSTUN CREH 1. 520 149.7 0.025 O.4 3 7. 145.
FOURCHE MALINE C 4EEK 7.160 686.3 0.087 0.793 28. 278.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — LAKE AL8ERT (EUTROPHIC)
COUNTY — KINGSBURY
STORET NO. — 4601 WORKING PAPER NO. 598. NTIS ACCESSION NO. P8—264 579/AB
I. MORPI4OMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1(14) (SO CM) (METERS) (CMS) (YEARS)
NATURAL 556.80 14.16 1.2 0.098 8.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKAL1NITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/LJ ORTHO P(MG/L) INORG N(MG/L) TOTAL N(NG/L)
244. 1296. 0.3 0.321 0.019 0.170 4.420
III. HIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
106.3 11.3 — 13.1 ( 2) ( 4/23/74) N ( 7/12/74) N ( 9/20/14) N
SUMMARY OF PHYTOPLANXTON DATA
4/23/74 7 12/74 9/20/74
GENERA COUNT GENERA COUNT GENERA COUNT
CYCLOTELLA 166067 APHANIZONENON 16351 APHANIZOMENON 26711
DACTYLOCOCCOP S1S 7374 MELOSIRA 2633 MELOSIRA 12197
CHROOMONAS 2978 STEPHANODISCUS 1019 OOCYSTIS 1708
I4ELOSIRA 2269 OSCILLATORIA 1571 SCENEDESHUS 732
OSCILLATORIA 1702 OOCYSTIS 977 STEPHANODISCUS 610
OTHER 5106 OTHER 2549 OTHER 3901
TOTAL 185496 TOTAL 25100 TOTAL 45859
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YP) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) ( 1 (6/YR) (KG/YR)
PHOSPHORUS
NITROGFN oe....a...
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YHI RETENTION (G/SO M/YR)
PHOSPHORUS
NITROGEN 00*0* 0*0*00 *00*
VI. MLAN NUTWIENT CONCENTRATIONS IN UNGAGEO STREAMS
STREAM NAME MEAN TOTAL P MFAN TOTAL N
(MG/LI (MG/I)
UNNAMED CREEK 81 0.747 4.872

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — LAKE ALVIN (EUTROPHIC)
CUUP )TV — LINCOLN
STOWET NO. — 4602 WORKING PAPER NO. 599. NTIS ACCESSION NO. P8-265 567/AB
I. MORPIIOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ (M l (METERS) (CMS) (DAYS)
IMPOUNLIMENT 114.00 0.44 3.7 0,058 325.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDIJCTIVITYWMHOS) (METERS) TOTAL P(MG/U ORTHO P(MG/L) INORG N(MGIL) TOTAL N(MG/L)
152. 1169. 1.4 0.067 0.017 0.970 1.960
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL( AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/I—-DRY wT)
4.7 0.3 — 11.1 ( 2) ( 4/23/74) P ( 7/11/74) N ( 9/20/74) P
SUMMARY OF PHYTOPLANKTON DATA
4/?3/74 7/11/74 9/20/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 182 CHROOMONAS 183 APHANIZQMENON 1108
CENTRIC DIATOM 46 CHI100MONAS 623
APHANIZOMENON 23 CRYPTOMONAS 173
SYNEDRA 23 SCHROEDERIA 35
SCHROEDERIA 23
OTHER 0 OTHFR 0 OTHER 0
TOTAL 182 TOTAL 298 TOTAL 1939
IV. NUTRIENT LOADINt , CHAP4CTLRTSTICS(LAKE)
A. INPUT
POINT SUuwCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS *0*00 0000 625. 625.
NITROGEN 5480. 5480.
. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YK) RETENTION (6/SO M/YR)
PHOSPHORUS 295. 53. 1.42
I ITROGFN 41 6U. 24. 12.5
V. NON—F’OTNT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW flWAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO ((H) (MG/I) (MG/LI (KG/SQ I(M/YH) (Kb/SO KM/YR)
NINtMILE CREEK 0.058 I08. 0.336 2.736 6. 46.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — ANGOSTURA RESERVOIR (MESOTROPHIC)
COUNTY — FALL RIVER
STORET NO. — 4603 WORKING PAPER NO. 600. NTIS ACCESSION NO. P8—265 574/A8
II. PHYSICAL AND
MEDIAN
ALKALINITY (MG/L)
137.
LAKE TYPE DRAINAGE AREA
(SO KM)
IMPOUNDMENT 23569.00
CHEMICAL CHARACTERISTICS
MEDIAN
CONOUCTIVITY (UMHOS)
1924.
II !. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WT)
3.7 0.1
GENERA
CHROO MON A S
SYNEDRA
ANK I STRODESMUS
ASTER IONELLA
CRYPT OMONAS
OTHER
TOTAL 1801
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE
A. INPUT
POINT SOURCE
MUNICIPAL (KG/YR)
PHOSPHORUS 1330.
NITROGEN 4995.
8. OUTPUT
OUTLtT CS)
(KG/YR)
PHOSPHORUS 1100.
NITROGEN 18124b.
V. NON—POINT—SOURCE NUTWIENT EXPORT
STREAM NAME MEAN FLOW
ICMS)
3.84 0
0. 095
LIMITING NUTRIENT AT SAMPLING TIME
4/24/74) P 4 7/15/741 P
LAKE SURFACE AREA LOADING RATE
(G/SQ M/YR)
0.53
9.2
9/11/74) P AND N
I. MORPHOMETRY
SURFACE
AREA
MEAN DEPTH
TOTAL INFLOW
RETENTION
TIME
(SO KM)
(METERS)
(CMS)
(YEARS)
19.55
9.1
3.956
1.5
MEAN SECCHI DISC
(METERS)
MEDIAN
TOTAL P(MG/L)
MEDIAN
ORTHO P(MG/L)
MEDIAN
INORG N(MG/L)
MEDIAN
TOTAL NCMG/L)
1.9
0.019
0.005
0.160
0.470
9/11/74
SUMMARY OF PHYTOPLANKTON DATA
4/24/74 7/15/74
COUNT GENERA
1167 CHROOMONAS
367 CARTERIA
133 GYROSIGMA
67 NITZSCHI*
66 MERISMOPEDIA
1 OTHER
TOTAL
POINT SOURCE
INDUSTRIAL (KG/YR)
o.0 0000 000
COUNT
GENERA
COUNT
493
CRYPTOMONAS
276
308
CHROOMONAS
246
92
DINOBRYON
61
92
PHACUS
31
92
GLENODINIUM
31
156
OTHER
30
1233
TOTAL
675
POINT
SOURCE
NON—POINT SOURCE
TOTAL
LOADING
SEPTIC
TANKS
5.
235.
(KG/YR)
4KG/YR)
8945.
176090.
(KG/YR)
10280.
180320.
PERCENT
RETENT ION
89.
LOSS
I C
- 2
CHEYENNE R iVER
HORSEHEAD CREEK
DRAINAGE AREA
MEAN
TOTAL P
MEAN
TOTAL N
TOTAL
P
EXPORT
TOTAL N EXPORT
(SQ KM)
(MG/ U
(MG/L)
(KG/SO KM/YR) (KG/SO KM/YR)
22558.9
0.080
1.278
0.4
7.
611.2
0.067
1.152
0.3
6.

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COMPENDIUM OF NATIONAL EUTMOPHICATION SUI VEY LAKES IN SOUTH DAKOTA
NAME — RWANT LAKE (FUTHOPHIC )
COUNTY — LAKE
STORET NO. — 46U4 wuklclN( 1 PAPER NO. 601. NTIS ACCESSION NO. P —265 583/AB
I. i40WP*IOMETRY
LAKE TYPE DRAINAGE AREA SUPFACE AREA MEAN DEPTH TUTAL INFLOW KETENTION TIME
(SO KM) (SO KM) (METERS) CCMS) (YEARS)
NAT IJP AL 4. 1)5 3.4 0•***
II . i*iYSICAL ANE) CHEMICAL C.’4ARACTFRISTICS
MEDIAN MEDIAN MFAN SECCrII DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITYU4G/L) CONUUCTIVITY(IJMHOS) (METERS) TOTAL P(Mb/L) OWTMO P(MG/L) INORG N(M i/L) TOTAL N(MG/L)
175. 1563. 1.7 0.194 0.113 0.130 2.020
III. 1IIOLO6ICAL CHAMACTIPISTICS (LAKE)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL YIELD LIMITINC, NUTRIENT AT SAr4PLIN(, TIME
(UG/L) (MGIL—-DRY WT)
34.2 4.0 — 12.7 ( 2) ( 4/23/74) N ( 7/12/74) N ( 9/20/74) N
SUMMARY OF PPIYTOPLANKTON DATA
4/?3/7. 7/12/74 9/20/74
‘ENEWA COUNT C,ENERA COUNT GENERA COUNT
CI YPTOMONAS 61 APHANIZQMFNON 6 4 APHANIZOMENON 1595
CHROOMONAS 30 CHROOMONAS 280 OSCILLATOPIA 271
STEPHANUOISCUS 2S CHROOMUNAS 271
OSCILLATOPIA 25
CRYI TOMONAS 25
OTHER 0 OTHFFl 26 OTHER 0
TOTAL 91 TOTAL 7229 TOTAL 2137
I’ . NUTP 1IENT LOADIN(, CHAWACTERISTICS(LAKE)
A. INPUT
POINT SOu . CE POINT SOuRCE POINT SOURCE NUN—POINT SOURCE TOTAL LOADING
MUNICIPAL IKG/YR) INIJUSTRIAL (l’ i/YM) SEPTIC TANKS (KG/YR) (KG/YR) (KO/YR)
PHOSPHORUS
NII RUGFN ..***C*.Q*
H. OUTPUT
OUTLtT(S) PERCENT LAKE SU WACE ARtA LOADING RATE
(KG/YR ) RETENTiON (G/SQ P4/YR)
P IOSPHORUS
NI TRiJGFN
*** LAKF SAMPLING ONLY °Q*

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — LAKE BYRON (EUTROPHIC)
COUNTY — READLE
STOWET NO. — 4605 WORKING PAPER NO. 602. NTIS ACCESSION NO. P6—265 604/A8
I. MORPHOMETRY
LAKE TYPE DRAiNAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SQ KMI (METERS) (CMS) (YEARS)
NATURAL 00*000*0*0 5.86 2.4 • ** * * * *0*00*
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEOIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHDS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
300. 1942. 0.3 0.443 0.146 0.370 3 .030
I II. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLIN6 TIME
(UG/L) (MG/L——DRY WT
I4 .3 44.4 ( 4/24/74) N ( 7/11/14) N ( 9/16/74) N
SUMMARY OF PHYTOPLANKION DATA
4/24/74 7/11/74 9/18/74
GENERA COUNT GENERA COUNT GENERA COUNT
PENNATE DIATOMS 337 APHANIZOMENON 8635 APHANIZOMENON 137293
OACTYLOCOCCOPSIS 289 MELOSIRA 2474 ANABAENA 563
SCHROEDERIA 144 OOCYST1S 151
CENTRIC DIATOM 96 CYCLOTELLA 10 1
CRYPTOMONAS 4R ANABAENA 101
OTHER 97 OTHER 601 OTHER 0
TOTAL 1011 TOTAL 12069 TOTAL 137856
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (K6/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 0* 0*0*00*0 0*0*0*0*0* 000*0*00*0 * 000*00*00 00 00 00 0 00 0
NITROGEN 0*0*00*000 0*0*0*0*00 0*00*0*0*0 *0 0*0*0*00
6. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS 0*0*4*0*0* *00*0 *0*0*00*0*
NI TROGEN 0*0*0*0*00 0*4*0 *0*00*0*0*
VI. MEAN NUT’4IENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
FOSTER CREEK 0.243 2.332
UNNAMED CREEK C l 0.340 3.030

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COMPENDIUM OF NATIONAL EUTROPHICATION SU IVEY LAKES IN SOUTH DAKOTA
NAME — CLEAR LAKE (MESa—EUTROPHIC)
COUNTY — MAWSHALL
STORFT NO. — 4606 WORKING PAPER NO. 603, NTIS ACCESSION NO. P8—264 758/AB
I. MORP44ONETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO ( (H) (SQ 1 (M) (METERS) (CMS) (YEARS)
NATUWAL 4.41 3.7
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCiII DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(M6/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG /L)
229. 592. 1.8 0.027 0.009 0.075 1.365
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTWOL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(IJG/L) (MG/L——DPY WT)
12.0 ( 4/29/74) N ( 7/10/74) NO DATA 1 9/18/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/29/7’. 7/10/74 9/18/74
GENERA COUNT GENEWA COUNT GENERA COUNT
CHROOMONAS 775 MELOSIW 1343 APHANIZOMENON 2668
FLAGELLATEs 1057 FRAGILARIA 839 MELOSIWA 1723
ASTERIQNFLLA 330 CHROOMONAS 294 ANACYSTI5(MICWOCYSTIS) 778
MELOSIRA 264 OOCYSTIS 210 FRAGILARIA 445
FWAGILARJA 264 APHANIZOMENON 84 ASTERIONELLA 56
OTHER 134 OTHER 336 OTHER 110
TOTAL 4A24 TOTAL 3106 TOTAL 5780
Id. NUTRIENT LOADING CHARACTERISTICS(LAIcE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL IKG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS CKG/YR) (ICG/YRP (KG/YR)
PHOSPHORUS 0.0**.Oee
NITROGFN OGO.*...eQ •...o*.e.*
3. OUTPUT
OUTLET(S) PERCENT LAI(E SURFACE AREA LOADING RATE
(4cGIYR) RETENTION (6/SQ N/fR)
PHOSPHORUS
NITROGEN
LAKF SAMPLING ONLY *O *

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — CLEAR LAKE (HYPEREUTROPHIC)
CUIJNTY - MINNEHAIIA
5TOWET NO. — 4607 WORKING PAPER NO. 604. NTIS ACCESSION NO. P8—265 575/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ K14) (SO ( (M I (METERS) (CMS) (YEARSI
NATURAL 1.91 1.1
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOSI (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORD N(MG/L) TOtAL N(fIG/L)
276. 498. 0.1 1.400 0.468 0.270 8.800
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L I (MG/L——ORY WT)
691.0 49.2 ( 4/22/741 N ( 7/12/74) N ( 9/20/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/22/74 7/12/74 9/20/74
GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODISCUS 3077 ANABAENA 27291 MERISMOPEDIA 52534
ANACYST!S(MICROCYSTIS) 1581 MERISMOPEDIA 21390 OSCILLATORIA 34087
MENISMOPEDIA 1497 LYNGBYA 17518 ANACYSTIS(NICROCYSTIS) 10627
SURIRELLA 582 OSCILLATORIA 129OU LYNGBYA 6817
LYNG YA 416 ANACYSTISUIICROCySTIS 12355 KIPCHNERIELLA 3008
OTHER 2744 OTHER 18993 OTHER 10627
TOTAL 9897 TOTAL 110455 TOTAL 117700
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) (K6/YR) (KG/YR)
PHOSPHORUS *0*0*0*0*0 0*4*0*0*0* *0*0*0*00* 0*40*0*00* 0 4 0 0 0 00 0 0 0
NITROGEN 0*00*00*00 0*0*0*00*0 0*0000*00* *0*0*000*0 00000*0*0*
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
IKG/YR) RETENTION (6/SQ M/YR)
PHOSP4jQRLJS 00*0*00*0* 0*4*0 00*00*0000
NITROGFN *0*0*00*0* 0*0*0 *0*0*00*0*
° LAKE SAMPLING ONLY ••

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SUMMARY OF PHYTOPLANKION DATA
4/24/74 7/12/74
GENERA COUNT GENERA
0SCILLATO RIA 640 APHANOIHECE
CENTRIC DIATOM 342 COELOSPHAFRIUM
SYNEDRA 213 PERIDINIIJM
COFLOSPHAERIUM 43 LYNGHYA
CRYPTOMONAS 43 FIOTRYOCOCCUS
OTHER 384 OTHER
TOTAL 1665 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNiCIPAl (KG/VP)
OUTLET IS)
(KG/YW)
PERCENT
RElENT ION
•0***
0 0 *
LAKE SU’ FACE AREA LOADING RATE
(6/SO M/YR)
NAME — LAKE COCHRANE
COUNTY - DEUEL
STORET NO. — 4608
I. MORPHOMETRY
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
(EUTROPHI C)
WORKING PAPER NO. 605. NTIS ACCESSION NO. Pd—
LAKE TYPE I)RAINAC,E AREA SURFACE AREA
(SO KM) (So (N)
NATURAL 000*.**.0* 1.4R
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY 1MG/LI CONDUCTIVITY (UMHOS)
28h. 2571.
III. BIOLOGICAL CHARACTERISTICS (LA’E)
MEAN CHLOROPHYLL A ALUAL ASSAY CONTROL YIELD
lUG/I) (MG/L——Dwr WI)
15.7 0.1
MEAN DEPTH
(METERS)
3.4
TOTAL iNFLOW
(CMS)
RETENTION TIME
(YEARS)
(METFRS)
TOTAL
P(MG/L)
ORTHO
P1MG/U
INQRG
N(MG/L)
TOTAL
N(MG/L)
1.4
0.037
0.008
0.150
1.520
LIMITING NUTRIENT AT SAMPLiNG TIME
1 4/24/7’.) P I 7/12/74) N
1 9/19/74) N
COUNT
GENERA
COUNT
8734
ANACYSTIS(MICROCY STIS)
1789
485
APHANOTHECE
617
485
PERIDIPIIUM
494
323
CHROOCOCCUS
247
81
COELOSPHAERIUM
123
325
OTHER
308
10433
TOTAL
3578
PHOSPHORUS
NIT WOGFN
B. OUTPUT
POINT SOURCE
INDUSTRIAL (KG/YR)
*0 *0*00* * 0
PHOSPHORUS
NITROGEN
POINT SOURCE
SEPTIC TANKS (KG/VP)
00 00 0 00 0 0 0
4*00*0*, ..
NON-POINT SOURCE
(KG/YB)
TOTAL LOADING
(KG /YB)
4*4*0• e4*
LAKE SAMPLII G ONLY *00*

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — COTTONWOOD LAKE (EUTROPHIC)
COUNTY — SPINK
STORET NO. — 4609 WORKING PAPER NO. 606 , NTIS ACCESSION NO. P8—265 573/A8
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SU KM) (METERS) (CMS) (YEARS)
NATURAL 6.68 2.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(HG/L) CONDUCTIVITY(uMHO5) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(flG/L)
520. 1754. 0.3 0.685 0.417 0.265 2.820
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
112.0 8.4 ( 4/24/74) N ( 7/11/74) N ( 9/18/74) N
SUMMARY OF PHYTOPLANKTON OATA
4/24/74 7/11/74 9/18/74
GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODI5CU5 121 APHANI ZOMENON 2574 APHANIZOMENON 13002
DACTYLOCOCCOP5I5 721 CHROOCOCCUS 814 ANA8AENA 875
NITZSCHIA 320 ANABAENA 263 CHROOCOCCUS 318
SYNEDI4A 120 OOCYSTIS 79 CHROOMONAS 159
CRYPTOMONA5 120 SCHROEDERIA 79 OOCYSTIS 80
OTHER 321 OTHER 78 OTHER 39
TOTAL 2323 TOTAL 3887 TOTAL 14473
IV. NUTHIENT LOADING CHARACTERISTICSLAKfl
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KO/YR) (KO/YR) (KG/YR)
PHO SPMORU S 0 *000 *00 * o* .*,**.** 0*00*0*0*0 000 0 0 0 0 000
NITROGEN 0*0*000* 0000 00 0 000 *0000*00*0 00 00 0 0 0 0 0 0 •o*e*o*o.o
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS *0*0*0*0*0 0*0*0 *0*00*0*00
NITROGEN 000* Q***** 00*00*00*0
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
MEDICINE CREEK 0.391 2.308

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NAME — DEERFIE1D LAKE
COUNTY — PENNINGTON
STORET NO. — 4610
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA
(SQ MM)
IMPOUNDMENT 248.60
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/li CONDUCTIVITY(UMHOS)
218. 285.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/I——DRY WT)
3.6
SUMMARY OF PHYTOPLANKTON DATA
4125/74 7/15/74
GENERA COUNT GENERA
CHROOMONAS 2142 CHROOMONAS
SYNEDWA 863 FRAGILAWIA
CRYPTOMONAS 480 CRYPTOMONAS
ASTER IONELLA 288 FLAGELLATES
TABELLARIA 64 CENTRIC DIATOM
OTHER 0 OTHER
TOTAL 3837 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL (KG/VP)
PHOSPHORUS
NITROGFN
8. OUTPUT
OUTLET(S)
(KG/Yk)
PHOSPHORUS 275. 1-4.
NITMOGFN 5500. pq.
V. NUN—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW ORA1NA(,E AREA
(CMS) (SO KM)
CASTLE CREE c 0.210 215.0
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MFAN TOTAL N
(F4C,/L) (M(,/L)
GOLD RUN 0.064 0.903
POINT SOURCE
SEPTIC TANKS (KG/YR)
LAME SURFACE AREA LOADING RATE
(GISO M/YR)
0.19
4.6
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
(MESOTROPHIC)
WORKING PAPER NO. 60?. NTIS ACCESSION NO. P6—264 512/AB
(SQ
MM)
(METERS)
(CMS)
(YEARS)
1.68
10,5
0.227
2.0
ME AN SECCHI DISC
(METERS)
5.0
MEDIAN
TOTAL P(MG/L)
0.033
MEDIAN
ORTHO P(MG/L.)
0.022
MEDIAN
INORO N(MG/L)
0.080
MEDIAN
TOTAL N(MG/L)
0.260
LIMITING NUTRIENT AT SAMPLINC, TIME
4/25/74) P ( 7/15/74) N ( 9/11/74) N
9/11/74
b21
CIfROOMONAS
265
9O
ASTERIONELLA
151
203
FRAGILARIA
i
87
ANABAENA
38
116
CRYPTOMONA5
38
115
OTHER
113
1332
TOTAL
719
POINT SOURCE
INDUSTRIAL (KG/YR)
O o og.
PERcENT
RE TENT ION
NON—POINT SOURCE
(KG/YR)
320.
7755.
TOTAL LOADING
(KO/YR)
320.
7755.
MEAN
TOTAL P
MEAN
TOTAL N
TOTAL P
EXPORT
TOTAL N
EXPORT
(MG/L)
(MG/I)
(KG/SQ
KM/YR) (KG/SQ
KM/YR)
0.030
0.615
1.
24.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — ENEMY SWIM LAKE (EUTROPHIC )
COUNTY — DAY
STORET NO. — 4611 WORKING PAPER NO. 608. NTIS ACCESSION NO. P8—265 584/Ad
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SO 1cM) (METERS) CMS) (YEARS)
NATURAL *0*0000*00 8.68 3.0 *0*00*0*00 0000*0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEO1AN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
259. 313. 1.5 0.037 0.013 0.085 1.005
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHyLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
lUG/L I (MG/L——DRY wT
14.2 0*0*4*00*0 I 4/25/74) N 1 7/11/74) N I 9/19/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/25/14 7/11/74 9/19/14
GENERA CUUNT GENERA COUNT GENERA COUNT
CHROOMONAS 3573 APHANOTHECE 1576 FRAGILARIA 1863
ASTEHIONELLA 2349 CHRDOMONAS 649 COELOSPHAERIUM 1139
FLAGELLATES 1026 OOCYSTIS 417 AI’ HANOTHECE 362
FRAGILARIA 992 MELOSIRA 278 OOCYSTIS 311
DINOSRYON 529 FLAGELLATES 232 APHANIZOMENON 207
OTHER 596 OTHER 371 OTHER 569
TOTAL 9065 TOTAL 3523 TOTAL 4451
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOUWCE POINT SOURCE. POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR I (KG/YR)
PHOSPHORUS * 0*0*00*0* *0*04*4 ,0* 0*0*00*000 0*000*0*0* 0*0 *00*000
NITROGEN *0*00*000* 000*00000* 0*00*00*0* 00*0000000 00*00*00*0
R. UUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YP) RETENTION (G/SO M/YR)
PHOSPHORUS *0*0 04 0000 *0*0* 000000 4*00
NI TROGEN *0*0*0*0*0 0*00* 0*00*040*0
*0*0 LAKE SAMPLING ONLY 04*0

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NAME — LAKE HERMAN
COUNTY — LAKE
STORET NO. — 4612
I . MORPHOMETRY
LAKE TYPE DRAINAGE AREA
(50 KM)
NATURAL
II. PHYSICAL ANt) CHEMICAL CHARACTER1STIC5
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCTIVITY (UMHOS)
)R9. 9 83.
III. BIOLOGICAL CHARACTeRISTICS (LAKE)
MEAN CHLOROPHYLL A AL ,AL ASSAY CONTROL YIELD
(UG/L) (MG/L——ORY WI)
58.7 11.2
SUMMARY OF PHYTOPLANKTON DATA
4/23/74 7/12/74
GENERA COUNT GENERA
CENTRIC DIATOM 4011 APHANIZOMENON
DACTYLOCOCCOPSIS 3735 CHROOMONAS
CHROOMONAS 2185 SCHROEDERIA
MELOSIRA 498 ANACYST IS (MICROCYSTIS)
SYNEDRA 138 APHANOCAPSA
OTHER 748 OTHER
TOTAL 11315 TOTAL
Iv. NUTRIENT LOADING CHARACTERI5TICS(LAKL)
A. INPUT
POINT SOU KCE
MUNICIPAL (KG/YR)
0*00*9*0
00*0*00*0
OUTLET (S I
(KG/YR)
*0*0*90* 9*
CONCENTRAT IONS IN UNGAGED STREAMS
MEAN TOTAL P MEAN TOTAL N
(MG/U (MG/L)
HI 0.520 5.460
CI 0.167 2.942
RETENTION TIME
(YEARS)
3.3
COUNT
2974
2811
1100
733
530
2199
10347
TOTAL LOADING
(KG/YR)
*0*0*9*9*0
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
(EUTROPHIC)
WORKING PAPER NO. 609, NTIS ACCESSION NO. P8—265 580/AD
(SQ
1CM)
(METERS)
(CMS)
5.46
** .o .0 .oo .
(METERS)
TOTAL
P(MG/L)
ORTHO
P(MG/L)
INORG
0.4
0.340
TOTAL N(MG/L)
LIMITING NUTRIENT AT SAMPLING TIME
4/23/74) N ( 7/12/74) N
9/20/74) N
COUNT
14869
471
13 5
67
67
101
15710
9/20/ 74
GENERA
DACTYLOCOCCOPSIS
MERISMOPEDIA
STEPHANOD I SCUS
ANACYSTIS(MICROCYSTI5)
CHROOMONAS
OTHER
TOT AL
PHOSPHORUS
NI FROGEN
. OUTPUT
PHOSPI4ORUc
NI IMOGEN
VI. MEAN NUTRIENT
STREAM NAME
UNNAMED CREEK
UNNAMED CREEK
POINT SOURCt POINT SOURCE
INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR)
00 00 90 0000
*0*00 00 0 0 0*0*0*00
PERCENT LAKE SURFACE AREA LOADING RATE
RETFNT ION (6/SQ M/YR)
*0*0* 0* 0*00*00*
0*00* *0*0*00*00
NON—POINT SOURCE
(KG/YR I
*00*0*0*0*
* toe ***oo *
Is

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — LAKE ST. JOHN (EUTROPHIC)
COUNTY — HAMLIN
STORET NO. — 4613 WORKING PAPER NO. 610. NTIS ACCESSION NO. P8—264 770/A8
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (50 KM) (METERS) (CMS) (YEARS)
NATURAL 450.70 4.86 1.2 0.066 2.9
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCI$I DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHDS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(M6/L) TOTAL N(MG/L)
185. 1290. 0.3 0.348 0.02 5 0.080 3.390
III. SIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLINS TIME
(UG/L) (M6/L——DRY WT)
120.9 4.0 — 15.2 ( 2) ( 4/23/74) N ( 7/12/74) N ( 9/20/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/23/74 7/12/74 9/20/74
GENERA COUNT GENERA COUNT GENERA COUNT
NITZSCHIA 58421 MELOSIRA 2147 OSCILLATORIA 44767
FLAGELLATES 20082 DOCYSTIS 1975 BINUCLEARIA 4277
MELOSIRA 10155 STEPHANODISCUS 1b32 CLOSTERIUM 3422
ANKISTRODESMUS 6276 SCENEDESMUS 1374 COELDSPHAERIUM 3279
STEPHANODISCUS 5135 ANACYSTIS(MICROCYSTIS 1288 MELOSIRA 2709
OTHER 5590 OTHER 8585 OTHER 15541
TOTAL 105659 TOTAL 17001 TOTAL 13995
IV. NUTRIENT LDADINr, CHARACTERISTICS(LAKE)
A. INPUT
POINT SOUNCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNiCIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS *4*0*4*04* 04*44*0*0* 40*4*44*4* 0*4*04404* *440*4*4*0
NI IROGFN *400*00000 *40040*0*4 4*00*44*44 *0*00*000* *0*0*0*00*
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 0*4*44*4*0 *4444 *44400*44*
NITROGEN 0*4444444* 04444 *044444444
00*4 LAKF SAMPLING ONLY *4*0

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — LAKE KAMPESKA (EUTROPHIC)
COUNTY — CODINGTDN
STORET dO. - 4614 WOWIINr, PAPER NO. 611, NTIS ACCESSION NO. P8—265 568/AS
I. MORPHOMFTRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (S Q KM) (METERS) (CMS) (YEARS)
NATURAL 19.43 3.4 toot
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METE RS) TOTAL P1MG/I) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
22$. 419. O .i 0.d2O 0.128 0.105 1.105
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
20.6 7.7 — 11.4 1 I I 4/25/74) N ( 7/12/74) N 1 9/19/14) N
SUMMARY OF PHYTOPLANKTON DATA
4/25/74 7/12/74 9/19/74
GENERA COUNT GENERA COUNT GENERA COUNT
CYCLOTELLA 531 APHANIZOMENON 2436 APHANIZOMENON 6830
DINOtIRYON 163 ANACYSTIS(MICROCYSTIS) 635 CHROOMONAS 181
FRAGILARIA 163 SCHROEDERIA 477 SCHROEDERIA 149
CHROOMONAS 163 CHROOMONAS 424 AN*CYSTIS(MICROCYSTIS) 37
SYNEL)RA 123 PHORMIO IUM 212
OtHER 83 OTHER 741 OTHER 0
TOTAL 1226 TOTAL 4925 TOTAL 7203
IV. NUTRIENT LOADING CHAWACTERISTICS(LAKF)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YB) SEPTIC TANKS (KG/YB) (KG/YB) (KG/fit)
PHOSPHORUS 0*00*0*00* *0*00*0*0* 0*00*0*00* 0*0*00000* *0*0*0*0*0
NITROGEN 0*0*0*0*0* *0*0*0*0*0 *00*000*0*
B. OUTPUT
OUTLET(S) PE RCENT LAKE SURFACE AREA LOADING RATE
(KG/YB) RETENTION (G/SQ M/YR)
PHOSPHORUS *9*0*0*0*0 *0*0* *0*0*0*0*0
NI TROGEN * 00* 0*0*0* *0*0 * *0*0*0*0*0
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED SIRFAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(Mr,/L) (Mu/LI
INNAMED STREAM Al 0.138 1.952
UNNAMEI 1 STREAM 81 3.000 8.035

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NAME - LAKE MAOISON
COUNTY — LAKE
STORET NO. — 4615
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA
(SQ KM)
NATURAL 310.80
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCTIVITY(UMHOS)
164. 1461.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WT)
22.6 1.1 — 4.7 C 2)
OF PHYTOPLANKTON DATA
7/12/74
COUNT GENERA
S8722 APHANIZOMENON
2812 SCHROEOERIA
1930
827
607
2150
TOTAL 67048
IV. NUTRIENT LOADING CHARACTERISTICS
A. INPUT
PUINT SOURCE
MUNICIPAL (KG/YR)
4245.
10395.
OUTLET CS)
(KG/YR)
*0000*0*
*0*00* 00*0
PHUSPHORUS
NI TROGfN
V. NON—POINT—SOURCE NUTk1ENT EXPORT
STREAM NAME MEAN FLOW
(CMS)
PARK CREEK AT 81 0.090
POINT SOURCE
SEPTIC TANKS (KG/YR)
95.
3560.
LAKE SURFACE AREA LOADING RA IE
(6/SQ M/YR)
0.73
3.5
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
(EUTROPHIC)
WORKING PAPER NO. 612. NTIS ACCESSION NO. PB— /AB
SURFACE AREA
(SO KM)
11.33
MEAN SECCHI DISC
(METERS)
1.4
MEAN DEPTH
(METERS)
3.0
MEDI AN
TOTAL P(MG/L)
0.250
TOTAL INFLOW
(CMS)
0.099
MEDIAN
ORTHO P(MG/L)
0.107
SUMMARY
4/23/74
RETENTION TIME
(YEARS)
10.9
MEDIAN
INORG N(MG/L)
0.090
GENERA
FLAGELLATES
CHROOMONAS
ANK ISTRODESMUS
OSCILLATORIA
K IRCPINERIELLA
O T HER
LIMITING NUTRIENT AT SAMPLING TIME
1 4/23/74) N C 7/12/74) N ( 9/20/74) N
9/20/74
COUNT GENERA COUNT
720 APHANIZOMENON 10641
48 PHORMIDIUM 1205
ACTINASTRUM 683
CYCLOTELLA 642
OSCILLATORIA 522
0 OTHER 2931
768 TOTAL 16624
OTHER
TOTAL
(LAKE)
PHOSPHORUS
NI TROGEN
B. OUTPUT
MEDIAN
TOTAL N(MG/L)
2.520
TOTAL LOADING
CKG/YR)
8270.
39545.
POINT SOURCE
INDUSTRIAL (KG/YR)
*000* 0*000
*00*000000
PERCENT
RETENTION
0*0*0
00*0*
I-
NON-POINT SOURCE
(KG/YR)
3930.
25590.
DRAINAGE AREA
(SC ) KM)
MEAN TOTAL P
(MG/L)
MEAN TOTAL N
(MG/L)
TOTAL P EXPORT
(KG/SQ KM/YR)
TOTAL N EXPORT
(KG/SW KM/YR)
235.7
4.63 5
13.709
16.
56.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — LAKE MITCHELL (EUTROPHIC)
COUNTY - DAVISON
STORET NO. — 461b WORKING PAPER NO. 613 NTIS ACCESSION NO. P8—264 514/*8
I. MURPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(5( KM) (SO KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT *QQ***o*Qe 2.71 3.7
Ii . PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEOIAN MEDIAN
ALKALINTTY(MC,/L) CONDUCTIVITY (UMH(J5) (METERS) TOTAL PU4G/L) ORTHO P(MG/L) 1NORG N046/L) TOTAL N(MG/L)
1R7. 1017. 0.9 0.099 0.015 0.085 1.040
III. HIOLOGICAL CHARACTERISTICS (LAKF)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (M(,/L——DRY WT)
14.9 1.1 ( 4/23/74) N I 7/11/74) N ( 9/18/74) N
SUMMARY OF PHYTC)PLANKTON DATA
4/23/14 7/11/74 9/18/74
GENERA COUNT GENERA COUNT GENERA COUNT
DACTYLUCOCCOPSIS 51d4 OSCILLATORIA 627 PHORMIDIUM 2254
CRUCIGENIA 2641 CARTERIA 50 DACTYLOCOCCOPSIS 2158
NITZSCHIA 1907 QACTYLOCOCCOPSIS 502 MERISMOPEDIA 2014
SCENEDESMUS 294 CRUCIGENIA 414 CHROOMONAS 1678
ANACYSTIS(MICI1OCYST IS) 49 EUGLENA 314 SCENEDESMUS 1582
OTHER 244 OTHFW 815 OTHEI 10119
TOTAL 10319 TOTAL 3074 TOTAL 19805
IV. NUTRIENT LOADING CMARACTEWISTTCSLAKE
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG YR) INDUSTRIAL (K(,/YR) SEPTIC TANKS (KG/YR} (KG/YRI (KG/YR)
PHOSPHORUS
NITROGFN
R. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(K(ilYH) RETENTION (6/SQ M/YR)
PHOSPHORUS
NI Tt1OIFN
Vi. MEAN NUTRIENT CONCFNTRATIONS IN UNGAGEI) 6TREAMS
STREAM NAME MFAN TOTAL P MFAN TOTAL N
(MG/L) (M(,/L )
FIRESTEEL CkEEK 0.097 1.57R

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COMPENDIUM OF NATIONAL EUTROPHICATION SUNVEY LAKES IN SOUTH DAKOTA
NAME — LAKE NORDEN (EUTROPHIC)
COUNTY — HAMLIN
STORET NO. — 4617 WORKING PAPER NO. 614. NTIS ACCESSION NO. P9—265 609/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO ( CM) (Su (CM) (METERS) (CMS) (YEARS)
NATURAL *000*000 3.02 2.1 0 * 0 *0 0 * 0 * 00 0000
II. PHYSICAL AND CHEMICAL CHARACTERISTiCS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALIN1TY(MG/L1 CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
215. 1469. 0.3 0.256 0.050 0.165 2.110
III. 8IOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
46.8 4.7 ( 4/23/74) N ( 7/12/74) N ( 9/19/74) N
SUMMARY OF PHYTOPLAP4KTON DATA
4/23/74 7/12/74 9/19/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 30800 CRUCIGENIA 10706 MELOSIRA 7307
SYNEDRA 9714 APHANIZOMENON 1T98 APHANIZOMENON 2036
ANKISTRDDESMU5 1524 OOCYSTIS 1389 CMLOROPHYTAN FILAMENTS 1437
CRYPTOMONAS 1255 CHROOMONAS 1144 SYNEDRA 898
MELOSIRA 1210 CYMBELLA 1062 STEPHANOOISCUS 659
OTHER 2243 OTHER 3229 OTHER 4074
TOTAL 46806 TOTAL 19328 TOTAL 16411
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPT1C TANKS (KG/YR) (KG/YR) (KG/YRI
PHOSPHORUS 0004*00000 0000000000 *000000*0 0000000000 00 00000000
NITROGEN 000000000 * *000*0*00* 000000 0000 0000000000 0 .00*0*0*0
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS 0000000000 00000 *000000000
NITROGEN 0000 000000 00000 000000*000
0000 LAKE SAMPLING ONLY 0*00

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — EAST OAKwOUQ LAKE (EUTROPHIC)
COUNTY - RROOKINGS
STORET NO. — 4618 WORKiNG PAPER NO. 615 , NTIS ACCESSION NO. P8—265 6t3/A8
I. MOI4PHOMETRY
LAPE TYPE DRAINAGE AREA SURFACE AREA MEAN OEPTH TOTAL INFLOW RETENTION TIME
(50 1(M) (SQ 1 (M) (METERS) (CMS) (YEARS)
NATURAL •oon* *4 4.05 1.5 0*000*0000 *0*00*
I i. PHYSICAL AND CHtMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY WMHO5) (METERS) TOTAL P(MG/L ORTMO P(MG/L) INONG N(MG/L) TOTAL N(MG/L)
159. 1015. 0.3 0.146 0.009 0.175 4.420
III. t3IOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALUAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (HG/L——DRY WT)
113.6 6.1 I 4/23/74) P I 7/12/14) N 1 9/20/14) N
SUMMAkY OF PHYTOPLANKTON DATA
4/23/74 7/12/74 9/20/74
GENERA COUNT GENERA COUNT GENERA COUNT
FRAGILARIA 5323 APHANOCAPSA 8821 ANABAENOPSIS 77640
FLAGELLATES 6087 MERISMOPEDIA 6829 LYNG8YA 10881
MERISMOPEDIA 4596 LYNG8YA 6046 OSCILLATORIA 1352
ANKISTRODESMUS 2485 FRAGILARIA 4268 APHANOTMECE 2353
LYNG BYA 2236 PHOqMID Upi 3486 NITZSCHIA 2059
OTHER 9690 OTHER 12235 OTHER 3235
TOTAL .i3417 TOTAL 41685 TOTAL 103520
I V. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/VR) SEPTIC TANKS (KG/YR) (KG/ n H (KG/YR)
PHOSPHORUS *00*00*00* 0*40*0*0*0 *0*4*0*0 *0 00*00*0*0* *0*0*0*0*4
NITROGEN 0*00*00*0* *0*00*0*0* *00*0*00*0 0*40*44444 0*0 04*0*0*
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YP) RETENTION (G/SO M/YiI)
PHOsPHORUS 4*4*000*0* *040-4 *0*00*44*0
NITROGEN *44*0*04*0 *00*0 *0*00*4044
*04* LAKE SAMPLING ONLY 4 *4 *

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES iN SOUTH DAKOTA
NAME — UEST OAK OOD LAKE (EUTROPHICI
COUNTY — RROOKINGS
STORET NO. — 4619 WORKING PAPER NO. 616. NTIS ACCESSION NO. P8—265 624/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (SO ‘M) (METERS) (C )4S) (YEARS)
NATURAL 000*0000*0 1.21 1.8 ** *** 0 0000 000000
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL PU4G/L) ORTHO PU4G/L) INORG NU G /L) TOTAL N MG/L)
153. 870. 0.4 0.181 0.021 0.135 5.165
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) IMG/L——ORY WT
159.7 0000*00*04 ( 4/23/74) P ( 7/12/74) N ( 9/20/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/23/74 7/12/74 9/20/74
GENERA COUNT GENERA COUNT GENERA COUNT
OSCILLATORIA 131350 APHANIZOMENON 131301 APHANIZOMENON 134077
CENTRIC DIATOM 2504 OSCILLATORIA 22757 OSCILLATORIA 19459
CHLOROPHYTAN CELLS 2504 MELOSIRA 14948 MERISMOPEDIA 2137
PENNATE DIATOMS 1926 LYNGBYA 10375 MELOSIRA 1462
CHROOMONAS 1733 ANACYSTISMICROCYSTIS) 1785 COELOSPHAERIUM 112
OTHER 3081 OTHER 3012 OTHER 114
TOTAL 143098 TOTAL 184178 TOTAL 157361
IV. NUTRIENT LOADING CHARACTERISTICS(LA1(E)
A. INPUT
POINT SOUP(CE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (1(6/YR) SEPTIC TANKS (I(G/YR) (KG/YR) (KG/YR)
PHOSPHORUS *04*000*0* 000 0 4000 0 4 *00000*0*0 *00000*00*
NITROGEN 0 00 9 00 0 4 0 0 0 4 4000 0 4 00 *044000*4* *0*0*00*0* *00*00*4*0
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
( 1 (6/YR) RETENTION (8/SQ M/YR)
PHOSPHORUS 0*00*0*0*0 O OeOO 00 00004404
NITROGEN 4400 404000 00040
0*9* LAKE SAMPLING ONLY 4*0*

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — PACTOLA RESERVOIR (OLIGOTROPHIC)
COUNTY — PENNINGTON
STORET NO. — 46d0 WORKING PAPER NO. 617. NTIS ACCESSION NO. P8—265 582/AS
I. MORPHQM TRy
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ 1 (M) (SU 1 (M) (METERS) (CMS) (YEARS)
IMPOUNDMENT 828.80 3.48 16.4 1.142 1.6
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINIIY(MG/L) CONDUCT IVITYUMHOS (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(NG/L) TOTAL N(MG/L)
159. 274. 6.4 0.011 0.006 0.070 0,245
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL(,AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLINb TIME
(UC,/L) (MG/L——DRY WT)
1.S ( 4/25/74) P ( 7/15/74) N 1 9/12/74) N
SUMMARY OF PHYTOPLANITON DATA
4/25/14 7/15/74 9/12/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHPOOMONA5 291 CHROOMONAS 242 CiIROOMONAS 547
FRAGILARIA 194 ASTERIONELLA 81 ANACYSTIS(MICROCYSTIS) 96
ANKISTRODESMUS 97 CRYPTOMONAS 40 CRYPTOMONAS 49
GYMNODINIUM 49 STEPIIANODISCUS 40 EUGLENA 24
ASTERIONELLA 24
OTHER 0 OTHER 0 OTHER 21
TOTAL 631 TOTAL 403 TOTAL 761
IV. NUTRIENT LOADING CIIARACTLRISTICS(IAKE)
A. INPUT
POINT SOURCE POI”IT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDuSTRIAL (KG/VP) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 25. 4060. 4085.
NITROGEN 870. 38675. 39545.
H. OUTPUT
OUTLtT(S) PERCENT LAKE SURFACE AREA LOADING RATE
lKb/Y R) RETENTION (G/SQ Il/YR)
PHOSPHORUS 45 5 89. 1.17
u’IITRQGFN 2 34S. 43. 11.4
V. NON—POINT-SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CM’S) (SIJ 1 (M) (MG/U (MG/L) (1¼/SQ KM/YR) (Kb/S I) KM/VR)
RAPID CREEK 1.130 756.3 0.064 0.734 5. 42.
Vi. MEAN NUTRIENT CUUCENTWATLONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/Li (MG/I)
N. FORK CASTLE CRELK 0.031 0.614
SILVER C’ [ E’c 0.012 0.452
GIMLET CREEK D.u22
SLATE CREEK 0.032 O.49 1i

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — PICKEREL LAKE (EUTROPHiC)
COUNTY — DAY
SIGNET NO. — 4621 WORKING PAPER NO. 618. NTIS ACCESSION NO. PA-
l. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO MM) (SO MM) (METERS) (CMS) YEARS
NATURAL *00000*000 3.86 6.1 00000*0000 000*0*
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(M6/L) CONDLJCTIVITYWMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
242. 390. 1.5 0.049 0.009 0.095 00000*
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/I——DRY WT)
15.8 0*9*0*009* ( 4/25/74) N ( 7/11/74) N ( 9/19/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/25/74 7/11/74 9/19/74
GENERA COUNT GENERA COUNT GENERA COUNT
ASTERrONELLA 15938 CPIROOMONAS 444 ANABAENA 3160
CHROOMONAS 3637 MELOSIRA 363 FRAGILARIA 1123
FRAGILARIA 898 ANACYSTTS(MICROCYSTIS) 161 FLAGELLATES 998
AN*CYSIIS(MICROCYSTIS) 359 OSCILLATORIA 81 ANACYSTIS(MICROCYSTISP 375
CRUCIGENIA 180 SCHROEOERIA 81 PHORMIDIUM 335
OTHER 628 OTHER 160 OTHER 621
TOTAL 21640 TOTAL 1290 TOTAL 6612
IV. NUTRIENT LOADINC, CHARACTtRISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNiCIPAL (MG/YR) INDUSTRIAL IKG/YR) SEPTIC TANKS (MG/YR) (MG/YR) (KG/YR)
PHOSPHORUS *099*09*94 *0*0*00*00 0*0*00*9*0 *40*0*0*4* *00*0*0*00
NITROGEN 000*000000 00*0000*00 0*00*0*00* *0*0*00*0* 0*0000*09*
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR ) RETENTION (6/SO M/YR)
PHOSPHORUS 00*0*0*400 *0* 0* 0*0*00*04*
NITROGEN 0*000*00*9 0000* 0*00000*00
0*0* LAKE SAMPLING ONLY * *

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — LAKE POINSETT (EUTROPHIC)
COUNTY — tIROOKINGS,HAMLIN
STORET NO. — 4622 WORKING PAPER NO. 619, NTIS ACCESS iON NO. P8—264 762/AB
I. MURPHOMETRY
LAKE TYPE DRATNAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SO KR) (METERS) (CMS) (YEARS)
NATURAL 733.00 29.26 2.9 0.073 35.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MFAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONflUCTIVITY(UMHOS) (METERS) TOTAL PMG/u ORTHO P(MG/L) INORG N(MG/L) TOTAL N(M6/L)
267. 1038. O.B 0.1)5 0.023 0.315 2.765
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL(,AL ASSAY CONTROL YIELD LIMITING NUTRItNT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT
40.2 0.R ( 4/25/74) P ( 7/12/74) N ( 9/19/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/?5”74 7/12/14 9/19/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMUNAS 3604 OOCYSTIS 1388 APMANIZOMENON 2380
CRYPTOMONAS 1984 PHORMIDIUM 1289 CYANOPHYTON FILAMENTS 641
FLAGELLATES 1214 ANACYSTIS(MICROCYSTIS) 991 OOCYSTIS 305
ANACYSTIS(M ICROCYS IIS) 202 CRYPTOMONAS 595 STIPITOCOCCUS 244
5TEPHANODI SCUS 162 CHROOMONAS 391 STEPHANODISCUS 153
OTHER 204 OTNFR 644 OTHER 945
TOTAL 7370 TOTAL 5304 TOTAL 4668
IV. NUTRIENT LOAOING CHARACTIHISTTCS(LAIcE)
A. INPUT
PUINT SOURCE POINT SOURCE POINT SOURCE NON-POINT SOURCE TOTAL LOADING
MUNICTPAL (KG/YIfl INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KO/YR) (KO/YR)
PHOSP hORUS 0000000000 0*000*0000 0*00*0*0*0 0 00 0*0000* *0*00*4*0*
NITROGEN 0000*00*00 000 00 00000 0000000000 000*000000 0*0*0*00*4
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YW) RETENTION (G/SU M/YR)
PHOSPHORUS *0*0000000 0000* *000000000
NITWOGFN 0000000000 0000* 0000000*00
VI. MEAN NUTRIENT CONCENIPAT IONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
UNNAMLD STREAM ts l 0.955 10.925

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LAKE TYPE DRAINAGE AREA
(SO CM)
NATURAL *0640*400*
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITYIMG/L) CONDUCTIVITY (UNHOS)
216. 515.
III. BiOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY T)
6.9 *0*00 *00*0
OF PHYTOPLANKTON DATA
7/10/ 74
GENERA COUNT GENERA
MELOSIRA 1531 MELOSIRA
CHROOMONAS 557 CHROOMONAS
CRYPTOMONAS 371 ANABAENA
FRAGILARIA 278 STEPHANODISCUS
SYNEORA 186 SYNEORA
OTHER 509 OTHER
TOTAL 3432 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICIPAL IKG/YR)
0 0* * 00 0*0 0
* 0*0 0 0 00*0
OUTLET(S)
(KG/YR)
00040*0000
0*000*00*0
PHOSPHORUS
NITROGEN
COUNT GENERA
661 MELOSIRA
441 ANABAENA
397 OOCYSTIS
44 APHANIZOMENON
44 LYNG8YA
81 OTHER
1674 TOTAL
POINT SOURCE
SEPTIC TANKS (KG/YR)
*0 *0*0* 0 0*
00*000*00*
LAKE SURFACE AREA LOADING RATE
(G/SO M/YR)
0000000000
0*000*000*
COMPENDIUM OF NATIONAL EUTROPHICATIUN SURVEY LAKES IN SOUTH DAKOTA
NAME — SOUTH RED IRON LAKE (MESO—EUTROPHIC)
COUNTY — MARSHALL
STORET NO. — 4623 UORKING PAPER NO. 620. NTIS ACCESSION NO. P8—264 755/AG
I. F4ORPHOMETRY
SURFACE AREA
(SQ 1CM)
2.51
MEAN DEPTH
(METERS)
2.1
TOTAL INFLOti
(CMS)
*00*0*0000
MEAN SECCHI DISC
(METERS)
1.8
MEDIAN
TOTAL P1MG/LI
0.042
SUMMARY
4/29/74
MEDIAN
ORTHO P(MG/L)
0.010
RETENTION TIME
(YEARS)
*00*00
MEDIAN MEDIAN
INORG N(MG/L) TOTAL N(MG/L)
0.110 1.520
LIMITING NUTRIENT AT SAMPLING TIME
4/29/74) P ( 7/10/74) NO DATA ( 9/18/74) N
9/18/74
PHOSPHORUS
NITROGEN
B. OUTPUT
COUNT
506
119
60
30
30
29
774
NON—POINT SOURCE
(KG/YR)
00*0000000
0*00*0*000
POINT SOURCE
INDUSTRIAL (KG/YR)
0000000*00
*000 00*00 *
PERCENT
RETENTION
0 0*00
00000
a
- ‘I
TOTAL LOADING
(KG/TM)
*0000*00*0
*000*0*00*
0000 LAKE SAMPLING ONLY 0000

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III. RIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WT)
18.5
4126/74
GENERA
C HROOMON A S
STEPHANODISCUS
C I 1Y P T OH ON AS
SCHROEDER IA
0 T HE H
TO1AL 1269
IV. NUTRIENT LOADING CHARACTERISTICS
A. INPUT
POINT SOURCE
MUNICIPAL (KC,/YR)
P 110 SPHOR US
NITr4OGF-N
, . OUTPUT
OUTLET (5)
1KG/YH)
30.
410.
LIMITING NUTRIENT AT SAMPLING TIME
4/26/74) M ( 7/10/74) N
9/18/74
COUNT GENERA
1618 APHANIZOMENON
350 C.IROOMONAS
175 OSCILLATORIA
44
0 OTHER
2187 TOTAL
9/18/74) N
COUNT
7579
234
94
0
7907
NAME — RICHMOND LAKE
COUNTY — HROWN
STOI4ET NO. — 4624
I. MORPHOMETRY
COMPENDIUM OF NATiONAL EUTROPhICATION SURVEY LAKES IN SOUTH DAKOTA
(EUTROPHIC)
WORKING PAPER NO. 621. NTIS ACCESSION NO. P8—265 5661*8
LAKF. TYPE DRAINAGE AREA
(SQ KM)
IMPOUNDMENT 450.70
II. PHYSICAL AND CHEMICAL CH4RACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/I) CONDUCTIVITY (UMHOS)
?65. 905.
SURFACE AREA
(SQ 1 (M)
MEAN DEPTH
(METERS)
TOTAL INFLOW
(CM )
RETENTION TIME
(YEARs)
MEAN SECCHI DISC
(METERS)
2.3
MEDIAN
TOTAL P(MG/L)
0.187
MEDIAN
ORTHO P(MG/L)
0.144
MEDIAN
INOPG N(M&/L)
0.150
MEDIAN
TOTAL N(MG/L)
1.570
SUMMARY OF PHYTOPLANKTON DATA
7/10/ 74
COUNT GENERA
90? APHANIZOMENON
272 CHROOMONAS
45 SCHROLDEPIA
45 ANARALNA
0 OTMFW
TOTAL
(LA IcF)
POINT SOURCE
INDUSTRIAL ucr,/YR
POINT SOURCE
SEPTIC TANKS IKG/YR)
30.
1145.
PE CF NT
RE TENT ION
92.
93.
NONPOINT SOURCE
(KG/YR)
345.
4930.
LAKE SURFACE AREA LOADING RATE
IG/SU N/TM)
0.11
1.8
PHOSPHORUS
NITROGEN
V. NUN—POINT—SOURCE NUTHIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA
(CMS) (SO 1 (M)
FOOT CREEK 0.010 373.0
VI. MEAt. NUTRIENT C 0NCFI TPATlUNS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P HFAN TOTAL N
(M( /L) CMG/L)
uNNAMED CREEK I 1.070 2.7 .O
TOTAL LOADING
(KG/YR)
375.
60 7 5.
MEAN
TOTAL P
MEAN
TOTAL N
TOTAL P EXPORT
TOTAL N EXPORT
(MG/L)
(MG/L)
(KG/SQ
KM/YR)
(KG/SQ
Kr4/YR)

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — ROY LAKE (EUTROPHIC)
COUNTY — MA&SHALL
STORET NO. — 4625 WORKING PAPER NO. 622. NTIS ACCESSION NO. P8—265 599/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIRE
(SO KM) (SQ 1 CM) (METERS) (CMS) (YEARS)
NATURAL 0000000000 6.85 3.3 00*00*0*00 000 000
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN 1EDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UNHOS) (METERS) TOTAL P(MG/L) ORTHO P4MG/Li INORG PC(M6/L) TOT1 L N( IG/L)
262. 1152. 1.8 0.034 0.010 0.070 10970
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
UG/L) (MG/L——DRY WT)
13.3 0* 0004*400 ( 4/29/14) P AND N 1 7/10/74) NO DATA 1 9/18/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/29/74 7/10/74 9/18/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 1633 APHANOTHECE 1837 FRAGILARIA 5635
SYNEDRA 901 FRAGILARIA 1225 ANACYSTI5(MICRUCYSTIS) 1120
CENTRIC DIATOM 272 OOCYSTIS 700 CHROOMONAS 700
CRYPTOMONAS 272 ANABAENA 262 APHANIZOMENON 630
FRAGILARIA 181 CHROOMONAS 262 MELOSIRA 455
OTHER 182 OTHER 351 OTHER 1226
TOTAL 3441 TOTAL 4637 TOTAL 9766
IV. NUTRIENT LOADING CHAPACTERISTICSLAICE
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL IKG/YR) SEPTIC TANKS IKG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 000*0* 00*0 0*0 000 00*0 - *0000*0000 *0000*000* 000*000000
NITROGEN 0000000000 0*0*0*000* *000000000 0000*00000 000000*000
B. OUTPUT
OUTLET IS) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (8/SQ R/YR)
PHOSPHORUS 0*00000000 000*0 0000*00404
NITROGEN 00*00000*0 0*0*0 0000000*00
0 0*0 LAKE SAMPLING ONLY 0000

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME - SAND LA E (FUTROPHIC)
COUNTY - RROWN
STURET NO. - 46?6 WORKING PAPER 10. 623, NTIS ACCESSION NO. PB—265 608/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ I M) (SQ KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 10308.20 3.10 0.8 2.364 12.0
II. PHYSICAL AND CHEMICAL CHARACTFRISTICS
MEDIAN MEDIAN MFAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINIIY(MG/Ll CONDUCTIvITYwMHOS (MLTE+4 5) TOTAL P1MG/U ORTHO P(MG/L) INORG NIMG/L) TOTAL NING/LI
314. 849. 0.7 0.489 O. 88 0.110 2.290
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL6AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAHPLINb TIME
(UG/L) (MG/L——DRY WT)
6”.S 12.? I 4/26/7’.) N ( 7/10/74) N 1 9/18/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/26/74 7/10/74 9/18/74
GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODISCUS 13131 APHANIZOMENON 17930 OSCILLATORIA 9303
DACTYLUCOCCOPSIS 6194 ANACYSTIS(MTCROCYSTIS) 448 APHANIZOMENON 7612
CHROOMONAS 3592 CRYPTOMONAS 299 STEPHANODISCUS 4229
ANKISTRODESMUS 1982 CRUCIGENIA 299 CHRUOMOPIAS 3637
SYNEDRA 1734 MELOSIRA 150 DACTYLOCOCCOPSIS 2876
OTHER 4460 OTHER 223 OTHEP 12432
TOTAL 31093 TOTAL 19349 TOTAL 40089
I V. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOU.ICF POINT SOURCE POiNT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL IK(,/YR) INDUSTRIAL (KG/YI1) SEPTIC TANKS (KG/YR) (KG/YR) (K6/YR)
PHOSPHORUS 3060. 18855. 21915.
NITROGFN 9180. 171950. 181130.
H. OUTPUT
OUTLLT(S) PERCENT LAKE SURF-ACE AREA LOADING NATE
(KG/YR) RETENTION (6/SO M/YR)
PHOSPHORUS 17010. 22. 7.07
NITNOGFN 142140. 21. 58.4
V. NON—POINT—SOURCE NUTRIENT EXPOF T
STW Ar4 NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SI) KM) (MU/L) IMG/L ) (KG/SQ KM/YR) IKU/SU KM/VR)
JAMES RIVFR 2.350 9842.0 0.247 2.117 2. 16.
DRY RUN 0.007 129.S 1.342 4.547 2. 16.
* ESTIMATED

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — SHERIDAN LAKE (EUTROPHICP
COUNTY - PENNINGTON
STORET NO. — 4627 IORK!NG PAPER NO. 624, NTIS ACCESSION NO. PB—265 585/AU
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL IMFLO RETENTION TIME
(SQ KM) (SQ KM) (METERS) (CNS) (YEARS)
IMPOUNDMENT 230.50 1.56 10.2 0.140 3.6
I L. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY (UMHOS) (METERS) TOTAL P(MG/L) ORTHO PMGILP INORG N(NG/Lp TOTAL N(MG/L)
104. 117. 2.7 0.053 0.016 0.105 0.545
III . BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/I——DRY WT)
15.4 ( 4/25/74) N ( 7/15/74) N ( 9/12/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/25/74 7/15/74 9/12/74
GENERA COUNT GENERA COUNT GENERA COUNT
FRAGILARIA 1409 FRAGILARIA 2250 APHANIZOMENON 632
CRYPTOMONAS 1118 CRYPTO,4ONAS 310 APHANOCAPSA 446
MESOSTIGMA 895 ANACYSTIS(MICROCYSTIS) 310 ANABAENA 149
CHROOMONAS 626 ANABAENA 116 CYANOPHYTON FILAMENTS 149
FLAGELLATES 447 ANKISTRODESMuS 78 FRAGILARIA 112
OTHER 1298 OTHER 118 OTHER 297
TOTAL 5793 TOTAL 3182 TOTAL 1785
IV. NUTRIENT LOADLNG CHARACTERISTICS(LA KE)
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 0*00*0*000 5• 290. 295,
NITROGEN 400 000 00 0 0 0000 00 00 00 245. 5075. 5320.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
( KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS 170. 42. 0.19
NITROGEN 3060. 42. 3.4
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL Pd TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (MG/L) (MG/L) G/SO KM/YR) (KG/SO KM/YR)
SPRING CREEK 0.128 183.9 0.041 0.674 1. 15.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/I) (MG/I)
HORSE CREEK 0.023 0.802

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COMPENDIUM OF NATIONAL FUTROPP$ICATIUN SURVEY LAKES IN SOUTH DAKOTA
NAME — STOCKADE LAKE (FUTROPHIC)
COUNTY — CUSTER
STORET NO. — 4628 WORKING PAPER NO. 625. NTIS ACCESSION NO. P8—265 586/AB
I. MORPHOMETRY
LA cE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1(M) (SQ (14) (METERS) (CMS) (DAYS)
IMPOUNDMENT 202.00 0.53 5.8 0.135 274.0
II . PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(HG/L)
hR. 227. 1.7 0.233 0.109 0.150 1.270
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL( AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
lUG/I) (MG/L——DPy Wfl
25.4 .7 — 27.5 ( 2) C 4/24/74) N ( 7/15/74) N C 9/11/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/24/14 7/15/74 9/11/74
GENERA COUNT (,ENFRA COUNT GENERA COUNT
CENTRIC DIATOM 16809 APHANIIOMFNON 3098 APHANIZOMENON 14916
CI CYPTOMONAS 2873 PHORMIDIU’ 2278 CIIROOMONAS 437
FLAGELLATES 2135 ANACYST [ S(MICROCYSTISI 516 SCENEDESMtIS 131
UNKNOWN CELLS 349 FRAGILARIA 395 OOCYSTIS 131
ASTEWIONELLA 194 STAuRASTRUM 152 MELOSIRA 87
OTHER ill OTHER 273 OTHER 351
C.,
TOTAL 22477 TOTAL 6712 TOTAL 16053
IV. NUTHIENT LOAnING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/VP) INOUSTRIAL (1 (6/VP) SEPTIC TANKS (KG/YP) (KG/YR) (KG/YR)
PHOSPHORUS 235. 425. 660.
NITROGEN 40. 5050. 5590.
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/ V P) RETENTION (6/SQ M/YR)
PHOSPHORUS 1U7 . LOSS 1.25
NITROGEN 147h 0. LOSS 10.5
V. NON—POINT—SOURCE NUTRIENT E POPT
STREAM NAME MEAN FLOi UPAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMSI (Si ) (M l (H6/L) (MG/L-) (KG/SQ KM/VP) (1(0/50 KM/VP)
FRENCH CHEEK A2 0.123 173.5 0.175 0.9 58 2. 22.
VI. MEAN NUTRIENT CO CENTI ATION5 IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN 1OTAL N
(MG/LI (M(,/L)
FRENCH CREEK A3 0.065 1.931
dISMARCK LAKE OUTLET 0.070
RUBY CREEK 0.053 1.659

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — EAST VERMILLION LAKE (EUTROPHIC)
COUNTY — MCCOOK
STORET NO. — 4629 WORKING PAPER NO. 626. NTIS ACCESSION NO. P9—265 S65/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(50 KM) (SQ KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 1036.00 2.23 3.7 0 ,095 2.8
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(PIG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
149. 695. 0.7 0.211 0.092 0.100 1 ,840
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L-—DRY WT)
100.8 4.5 — 27.9 ( 2) ( 4/22/74) N ( 7/11/74) N ( 9/20/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/22/74 7/11/74 9/20/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHRYSOPMYTAN CELLS 3134 APHANIZOMENON 14059 APMANIZOMENON 45153
STEPHANODISCUS 1458 OSCILLATORIA 378 OSCILLATORIA 485
CHROOMONAS 310 NITZSCHIA 242
DACTYLOCOCCOPSIS 310
OSCILLATORIA 248
OTHER 156 OTHER 0 OTHER 0
TOTAL 5616 TOTAL 14437 TOTAL 45880
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 4t*o**.o*. 5. 655. 660.
NITROGEN 00 0 00*000 0 90. 6440. 8530.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 120. 82. 0.30
NITROGEN 3655. 57. 3.8
V. NON—POINT—SOURCE NUTRIENT EflPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (MG/L) (MG/L) (KG/SO KI1/YR) (KG/SQ KH/YR)
VERMILLION RIVER 0.081 932.4 O.2D 5 2.013 0.6 6.

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COMPENDIUM OF NATIONAL EUTROPhICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — WALL LA1 E (EUTROPHIC)
COUNTY — MINNEHArIA
STORET NO. — 463 1) WORKING PAPER NO. 627. NTIS ACCESSION NO. PB— 65 600/AG
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (5u 4 (M) (METERS) (CMS) (YEARS)
NATURAL 0.90 2.6
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UHHOS) (METERS) TOTAL P(MG/L ) ORTHO P(MG/L) INORG N(MG/L) TorAL N(MG/L)
173. 1083. 1.5 0.194 0.076 0.160 2.250
III. AIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUfRIENT AT SAMPLING TIME
lUG/ i) (MG/L——ORY WT)
5.3 2.5 — 22.r C 2) C 4/22/74) N ( 7/11/74) N C 9/20/74) N
SUMMARY OF PHYTOPL4NKTON DATA
4/22 74 7/11/74 9/20/74
GENERA COUNT GENERA COUNT bENERA COUNT
CENTRIC DIATOM 951 APHANIZ(JMFNON 3724 APHANIZOMENON 5614
FLAGELLATES 565 OSCILLATORIA 624 OSCILLATORI* 1191
FRAGILARIA 119
CHROOMONAS
ANKISTRODESMUS 30
OilIER 29 OTHFP 0 OTHER 0
c.1
TOTAL 1783 TOTAL 4348 TOTAL 6805
IV. NUTRIENT LOADING CHARACTEWISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YP) INOUSTRIAL (Kb/YR) SEPTIC TANKS (I (G/YR) (KG/YR) IKG/YR)
PHOSPHORUS *00*40*0*0 *0 440 044 04
NITROGFN 0 00 4 0 0 00 0 4 *00*00*00* 0*4*40*0*4
R. OUTPUT
OUTIETCS PERCENT LAKE SURFACE AREA LOADING RATE
(KG/Yl 4) RETENTION (G/SQ M/YR)
PHUSPHOHUS *0*4*40*0*
NIT ,4OtFN *0*000*000 000*0
* 0 LAKE SAMPLING ONLY ****

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN SOUTH DAKOTA
NAME — NORTH WAUBAY LAKE (EUTROPHIC)
COUNTY — DAY
STORET F.O. — 4631 WORKING PAPER NO. 628, NTIS ACCESSION NO. PB— lAB
I. NORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TINE
(SQ KN) (SQ KM) (METERS) (CMS) (YEARS)
NATURAL 14.16 2.7
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITYCMG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL PING/I) ORTHO P1MG/I) INORG N(M6/LJ TOTAL N(MG/L)
418. 4301. 0.8 0.098 0.023 0.145 3.620
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/I——DRY WTI
127.0 1 4/25/74) N ( 7/11/74) N ( 9119/74) N
SUMMARY OF PHYTOPLANKTON DATA
4/25/74 7/11/74 9/19/74
GENERA COUNT GENERA COUNT GENERA COUNT
SURIMELLA 291 APHANIZOMENON 11360 GLOEOCYSTIS 4061
CYCLOTELLA 166 PHORMIDIUM 3877 APIIANIZOMENON 1684
CHROOMONAS 125 CHAETOCEROS 2288 PIODULARIA 74
ANACYSTIS(MICROCYSTIS) 83 CHROOCOCCLJS 1435 CHAETOCEROS 50
AMPHIPRORA 83 CHROOMONAS 194 NITZSCH 1A 25
OTHER 416 OTHER 736 OTHER 99
TOTAL 1164 TOTAL 19890 TOTAL 5993
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADiNG
MUNICIPAL (KG/YR) INDUSTRIAL (IcG /YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS
NITROGEN
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(K6/YR) RETENTION (6/SO M YR)
PHOSPHORUS *0*0*0*0*0 00000 *0*0*000*0
NITROGEN *00*00*0*0 00*00 0 00 00 0 0 0 0 0
°° LAKE SAMPLING ONLY 000*

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COMPENDIUM OF NATIONAL EUTROPHICA1ION SURVEY LAKES IN TEXAS
I. MO pp1ØME py
IMI SOTPOPHIC )
LAKE TYPE DRAINAGE AREA
(SQ KM)
IMPOUNDMENT 31M828.90
SURFACE AREA
(SO M)
262.4b
MEAN DEPTH
(METERS)
16.5
TOTAL INFLOW
(Cl (S)
58.506
RETENTION TIME
(YEARS)
3.8
III. PIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WI)
2.0 0.1 — 0.3 1 2)
LIMITING NUTRIENT AT SAMPLINI, TIME
3/ 5/14) P ( 5/14/74) P
8/ 6/74) NO DATA (10/29/74) P
PHOSPHORUS
NITROGEN
H. OUFPUT
PsiO SPHORUS
F ’. ITROGEN
OUTLET (SI
(r’ .G/YR)
1432(J.
I 193 ,SU.
POINT SOURCE
INDUSTRIAL (I(G/YR)
0*0*00*00*
*0 0*0 * *0 * *
PERCENT
RETENT ION
94.
72.
456 TOTAL
POINT SOURCE
SEPTIC TANKS (KG/YR)
000o 0 0 0 0 0 0
NON—POINT SOURCE
(IcG/YR)
257295.
4244880.
TOTAL LOADING
IKG/YN)
251295.
4244880.
° ESTIMAT 1)
NAME
COUNTY
ST ORE I
- AMISTAI) RESERVCZR
- VAL VERDE
r iO. — 4R 01
wORscINr, PAPER NO. 631. NTIS ACCESSION NO. P8—268 312/48
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN
MEDIAN MEAN SECCHI
DISC
MEDIAN
MEDIAN
MEDIAN
MEDIAN
ALKALINITY(MG/L)
CONDLbCTIVZTY(UMHOS)
(METERS)
TOTAL P(MG/L)
ORTHO P(MG/L)
INURG N(MG/L)
TOTAL NIMG/L)
137.
823.
3.3
0.013
0.009
0,500
0.720
SUMMARY OF PHYTOPLANKTON DATA
3/ 5/74
5/15/74 8/ 7/74 10/29/74
TOTAL
GENERA
COUNT
GENERA
COUNT
GENERA
COUNT
GENERA
COUNT
CYSTS
262
COELASTRUM
161
NAVICULA
739
COELASTRUM
30
CHROOMONAS
114
CRYPTOMONAS
107
CHROOMONAS
370
CHROOMONAS
20
CUELASTRUM
87
CHROOMONAS
40
USCILLATORIA
269
CRYPTOMONAS
20
CRYPTOMON AS
87
DINORRYON
40
PEHIOINIUM
168
MELOSIRA
20
CYCLOTELLa
87
FRAGILARIA
40
CENTRIC DIATOM
101
SCENEDESMUS
10
OTHER
44
OTHER
68
OTHER
268
OTHER
21
741 TOTAL
1V. NUTRIENT LOADING CHARACT RISTTCSILaKF)
A. INPUT
POINT SOURCE
MUNICIPAL (KG#’YR)
0000000040
1915 TOTAL
121
LAKE SURFACE AREA LOADING RATE
(G/SQ M/YR)
‘J.98
16.2
V. NON—POINT—SOURCE NUTRIENT EXPORT
‘,TWFAM NAMF
MEAN FLO
(CMS)
nQAINAGE AREA
(5 ’) P’.P4)
MEAN TOTAL P
(MG/L)
MEAN TOTAL N
(MG/L)
TOTAL P EXPORT
(KG/SQ KM/Yk)
TOTAL
(KG/SO
N EXPORT
KM/YH)
RIO GRAN1F RIVER
3R.R20
209271.9
0.273
1.727
1.
10.
EVA c CRFFK
0.020
114.5
*0*0*0*00*
0*00*0*00*
1.
49 0
‘)EVIL’S RIVER
10.900
102S9.0
0.011
2.649
0.4
91.
EC0S RIVER
7.410
91 1 Ib.1
0.014
2.692
000*0*0*0*0
6.
‘ o ( 5’, T I1 ‘).I.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TUAS
NAME — LAKE HASTROP (MESO—EUTROPHIC)
COUNTY — B ASTROP
STORET NO. — 4802 bORKING PAPER NO. 632. NTIS ACCESSION NO. PB— /48
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA 5uRcAcE AREA MEAN DEPTH TOTAL INFLOU RETENTION TIME
(SO KNI (SO KtA) (METERS) (CR5) (YEARSI
IMPOUNDMENT 24.60 3.67 5.6 0.238 5.2
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN c IEDIAN CDIAN
ALKALINITY(MG/L) CDNDUCTIVITY(UMHOS) 4METERS) TOTAL P(14G/L) ORTHO P(flG/L) INOPG PdUlG/L) TOTAL NWG/L)
137. 841. 2. ’) 0.022 0.001 0 .090 0.525
III . BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) ( G/L——DRy bT)
12.4 00*0*0*00* I 3/14/T4J N I 5/22/741 P 1 8/16/74) NO DATA (11/ 4/74) N
SUMMARY OF PHYTOPLANKTUN DATA
3/14/74 5/22/74 11/ 4/14
GENERA COUNT GENERA COUNT GENERA COUNT
PEDIASTRUM 834 PENMATE O1ATOMS 821 CHROOMONAS 690
OOCYSTIS 371 OSCILLATORIA 614 CRYPTOMONAS 235
CHROOMONAS 278 HERISMOPEDIA 643 PEDIASTRUM 63
CRYPTONONAS 232 PEO IASTRUM 337 TETRAEDR 0N 47
SCENEDESMU5 185 CHROOMONAS 214 NITZSCHIA 31
OTHER 394 OTHER 552 OTHER 16
C l ’
TOTAL 2294 TOTAL 3247 TOTAL 1082 —J
lb ’ . NUTRIENT LOADING CtIARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (MG/YR) INDUSTRIAL ING/YR) SEPTIC TANKS (KG/TM) I KG/YR ) (KG/YR)
PHOSPHORUS *0*0*0*0*0 00*0*0*0*0 0000*00000 985. 985.
NITROGEN 00*000*00* 0*0*00*00* *00*0*00*0 12100. 12100.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
IKG /YR ) RETENTION (6/SO M/YR)
PHOSPHORUS 105. 89. 0.27
NITROGEN 2795. 7 1. 3.3
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EAPORT TOTAL N EAPORT
(CMS) 450 KNI (MG/L) (MG/LI (KG/SO KM/YR) (KG/SO KM/TM)
SPICER CREEK 0.007 2.3 0.022 0.629 2. 61.
COLORADO RIVER DIVEkSION 0.184 0*0*0000*0 0.565 1.735 0*0*0*000* 0*0*000*0*

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
I. MOWPpiUM TRy
ME SO-Eli T POPH IC
WORKING PAPER NO. 633. NTIS ACCESSION NO. P8—268 281/A )3
PHOSPHORUS
NI TWOGFN
A. OUTPUT
PHOSPHORUS
NI TNOGFN
POINT SOURCE
MUNICIPAL (KG/YP )
4 10.
57.,7o.
OUTLET(S)
(KG/VP)
I 7 uSS.
4R0930.
POINT SOURCE
INOIISTRIAL (1(6/YR)
* * .* a * *
a....
PERCENT
RETENTION
9).
so.
POINT SOURCE
SEPTIC TANKS (KG/VP)
50.
1945.
NON—POINT SOURCE
(KG/YR)
174400.
894340.
TOTAL LOADING
(KG/YR)
198660.
95 8S5.
c. oc —
I)PAINAGE AREA
(SQ KM
h728.8
IA 15.6
MEAN TOTAL P
(M6/L)
0.120
0.760
MEAN TOTAL N
(Mb/U
I .524
1 • 378
TOTAL P EXPORT
(KG/SQ KM/VP)
5.
ii.
TOTAL N EXPORT
(KG/SQ KM/YR)
70.
129.
VI. MEAN NUTRIFrJT CONCLNIkATIONS [ N IJNGAGED
S1HEAM NAME MEAN T(JTAL ‘
(MG/I)
OWL CREEK 0.013
STREAMS
MEAN IOTAL N
(M(,/L)
0.901
NAME
COUNTY
ST ORE T
- )3ELTON RESERVOIR
— 3ELL. CORThLL
NO. —
II. PHYSICAL ANt) CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITy(MG,L) CONDUCTIVITY(UMHOS)
142. 388.
LAKE
TYPE
DRAINAGE AREA
(S Q KM)
SURFACE AREA
(SO 1(M)
MEAN DEPTH
(METERS)
TOTAL INFLOW
(CMS)
RETENTION TIME
(YEARS)
IMP(JLJNIII4ENT
9230.80
50.27
10.8
18.320
III. 8IOLOG ICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALUAL ASSAY CONTROL YIELD
lUG/I) (MG/L——Opy WT)
M.0 0.1 — 0.3 I 2)
SUMMARY OF PHVTOPLANKTON DATA
3/13/74 5/20/74
(METERS)
TOTAL
P(MG/L)
ORTHO
P(MG/L)
INOPG
N(MG/L)
TOTAL
3.1
0.016
LIMITING NUTRIENT AT SAMPLINb TIME
3/13/74) I
TOTAL
5/20/74) P
8/14/74
GENERA
COUNT
GENERA
COUNT
GENERA
COUNT
GENERA
CHROOMONAS
539
OOCYSTIS
2057
RAP$IIDIOPSIS
885
CHROOMONAS
COUNT
CRYPIOMONAS
135
ANACYSTIS(MICROCYSTIS)
853
ANABAENOPSIS
442
MERISMOPEDIA
SCENEDESM U5
7
COELASTwUM
b5
OSCILLATOPIA
221
ANA8AENOPSIS
461
PENNATE DIATOMS
34
DINOBRYON
452
CARTERIA
184
DACTYLOCOCCOPSIS
SPHAERJCYSTIS
34
CHWOOMO aAS
401
PENNATE DIATOMs
148
RAPHIDIOPSIS
OTHER
0
OTHER
953
OTHER
192
IV. NUTRIENT LOADING CHAPACTERISTICR(LAKE
A. INPUT
8/14/74) NO DATA (11/ L/74 P
11/ 1/74
809 TOTAL 526a TOTAL 2433 TOTAL
V. NUNPOINTSOURCE NUTRIENT *POHT
STREAM NAME MEAN FLOW
(CMS)
LFON RIVER 10.110
COWHOUSE CREEK 5.410
LAKE SURFACE AREA LOADING RATE
(G/SQ P4/VP)
3 • 95
19.0

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NAME — BRAUNIG LAKE
COUNTY — BEXAR
STORET NO. — 4804
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA
(SO MM) (SO 1c m)
IMPOUNDMENT 24.30 5.46
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (MG/L) CONDUCTIVITY (UMHOS)
168. 1250.
III. BIOLOGICAL CHARACTER1STICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WT)
22 .8 4.3 — 7.6 C 2)
SUMMARY OF PHYTOPLANKTON DATA
3/12/74 5/21/14
GENERA COUNT GENERA
CENTRIC DIATOM 7060 NITZSCHIA
NITZSCHIA 5158 COCCOID CHLOROPHYTA CELL
MERISMOPEDIA 2673 TETRAEDRON
DACTYLOCOCCOPSIS 2193 MESOSTIGMA
TETR*EDRON 1988 OSCILIATORIA
OTHER 1851 OTHER
TOTAL 21523 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE
MUNICIPAL (MG/YR) INDUSTRIAL (MG/YR)
*000*0*00* *00*000*0*
0*0*0*000* *00*0*0*0*
OUTLET(S) PERCENT
(KG/YR) PETENT ION
00000 0t0 00 *0000
*00*0*00*0 *0*0*
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES 1N TEXAS
(EUTROPHIC)
UORKING PAPER NO. 634 , NTIS ACCESS1ON NO. P8-269 234/AB
MEAN DEPTH
(METERS)
6.0
TOTAL INFLOW
(CMS)
0 • 280
MEAN SECCHI DISC
(METERS)
1.0
RETENTION TIME
(YEARS)
3.7
MEDIAN
MEDIAN
MEDIAN
MIDIAN
TOTAL P(MG/L) ORTHO P(MG/L)
INORG M(MG/L)
TOTAL N(MG/L)
0 .134
0.062
0.150
1.060
LIMITING
NUTRIENT AT SAMPLING TIME
3/12/74) N
C 5/21/14) N 1
8/14/76) NO
DATA
111/ 5/74)
Pd
PHOSPHORUS
NITROGEN
S. OUTPUT
8/14/74
11/ 5/74
COUNT
GENERA
COUNT
GECRA
CCU ’4T
654
CENTRIC DIATOM
3680
OSCILLATC IA
4 43
551
SCENEDESMUS
1723
DACTYLOCOCCOPSIS
909
482
CHLOROCOCCALAN CELL
1505
SCENEDESMUS
775
413
MERISMOPEDIA
627
COCCOID C*4L0 OPMYTA CELL
642
275
OSCILLATDRIA
564
LYNGZYA
5 61
1342
OTHER
2980
OTHER
2353
.n
3717
TOTAL
10879
TOTAL
9303
z
PHOSPHORUS
NITROGEN
POINT SOURCE
SEPTIC TANKS (KG/YR)
000000*000
0000000*00
LAKE SURFACE AREA LOADING RATE
(G/SO M/YR)
00*0000000
0 *00*0*00*
NON—POINT SOURCE
C KG/YR)
0*00000*00
0*00000*00
TOTAL LOADING
(KG/ YR)
000*000000
*00000*00*
00*0 LAKE SAMPLING ONLY *0*0

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COMPENDIUM OF NATIONAL EUTROPHICATION SURvEY LAKES IN TEXAS
NAME - LAKE BROWNW000 (EUTROPHIC)
CUUNTY — QROWN
STORET NO. — 4805 WORKING PAPER NO. 635. NTIS ACCESSION NO. P8—268 264/AB
I. MORPHOMFTRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOI RETENTION TIME
(SQ KM) (SO CM) (METERS) (CMS) (YEARS)
IMPOUNUMENT 3915.60 29.54 6.0 4.893 1.5
11. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(p4C,/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(Mb/L) INORG N(MG/L) TOTAL N(MG/L)
120. S4 . 0.R 0.027 0.007 0.100 0.485
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UO/L) (Mb/I——DRY WT)
4.9 0.1 ( 3/ 7/14) P ( 5/16/74) P ( 8/ 6/74) N (10/29/74) N
SUMMARY OF PIIYTOPLANKTON DATA
3/ 7/74 5/16/74 8/ 6/74 10/29/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 618 NIT7SCHI* 919 LYNGBYA 1277 CHLAMYDOMONAS 204
FLAGELLATES 172 CRYPTOMONAS 38 OSCILLATORIA 998 CHROOMONAS 204
ANKISTROOESMUS 137 CHLAMYDOMONAS 204 RAPHIDIOPSIS 399 CRYPTOMONAS 204
NITZSCHIA 131 CHROOMONAS 170 NITZSCHIA 399 CYCLOTELLA 58
CRYPTOMONAS 103 IYNGBYA 136 CRYPTOMONAS 319 GYMNODINIUM 58
OTHER 240 OTHFR 410 OTHER 599 OTHER 291
TOTAL 1407 TOTAL 2077 TOTAL 3991 TOTAL 1019
I V. NUTRIENT LOADING CIIAWACTER!STICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON-POINT SOURCE TOTAL LOADING
MUNICIPAL (KO/YR) INDUSTRIAL (KO/YR) SEPTIC TANKS (KG/YR) (ICG/YR) (KO/YR)
PHOSPHORUS 170. 8345. 8515.
NITRUGFN 6305. 229335. 235640.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(IcG/YR) RETENTION U,/SQ M/YR)
PHOSPHORUS 79 T h. ( 1.29
NITROGEN 85915. 64. 8.0
V. NUN—POINT-SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO 1cM) (MG/L) (MG/U (KG/SQ KM/YR) (KG/SQ KM/YR)
PECAN t AYO(J 2.000 1623.9 0.031 1.446 1. 55.
JIM NED CREEK 2.000 1634.3 0.081 1.039 3. 45.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGA(,LO STREAMS
STREAM NAME MFAN TOTAL P MEAN TOTAL N
(MG/I) (MG/L)
HOt, CNEFK 0.063 1.122
ROUGH BRANCPI 0.021 1.014

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — LAKE 8I.JCHAIIAN (EUTROPHIC)
COUNTY — AUI4NET. LLANO
STORET NO. - 4806 WORWING PAPER NO. 636. NTIS ACCESSION NO. Pb—268 303/AG
I. MORPHOMETRY
LA 1cE TYPE OnAINAGE AREA SURFACE AREA MEAN OEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ 1 (M) (METE RS) (CMS) (YEARS)
IMPOUNDMENT 80937.40 93.32 13.1 21.013 1.7
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(M&/L) CONDUCTIVITY ((JMHOS) (METERS) TOTAL P(MG/L) ORTHO P(ML,/L) INDRG N(MG/L) TOTAL N(MG/L)
142. 642. 1.6 0.036 0.012 0.250 0.580
III. RIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALUJAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (PG/L——DRY WI)
8.6 0.1 — 2.7 ( 2) ( 3/14/74) P ( 5/21/14) P ( 8/16/14) NO DATA (11/ 4/74) P
SUMMARY UF PHYTOPLANKTON DATA
3/14/14 5/21/7k 11/ 4/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 1482 TETRAEORON 453 FLAGELLATES 990
SCENEDESMUS 1284 SCENEDESMUS 316 STEPNANODISCUS 186
NITZSCHIA 889 CHROOMOfiAS 272 ANKISTRODESMUS 124
CENTnIC DIATOM 840 CRYPTOMONAS 181 CRYPTOMONAS 124
CRYPTOMOIJAS 543 NITZSCHIA 181 SCENEDESMUS 124
OTHER 198 OTHER 647 OTHER 493
TOTAL 6966 TOTAL 2050 TOTAL 2041 —
IV. NUTRIENT LOADING CHAWACTERISTICS(LAKEI
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON-POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/Y I n INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) ( 1 (G/YR) (KG/Y I n
PHOSPHORUS 35. 325. 9 1510. 91870.
NITROGFN 100. 12180. 1583845. 1596125.
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YN) RETENTION (G/S0 M/YR)
PHOSPHORUS 15995. 83. 0.98
NITROGEN 660d4 0. 59. 17.1
V. NON—POINT—SOURCE NUTRIENT EXPORT
SIREAM NAME MEAN FLOW OPAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMSI (SO 1 (M) (MG/L) (MG/LI (KG/SQ KM/YR) (Kb/S W KM/YR)
COLORADO RIVER 22. 890 19603.6 0.121 1.99 4 1. 18.
CALVERI CREEK 0.020 7.3 0.017 0.225 0.1 13.
FALL CREEK 0.2QO 132.1 0.014 0.500 0.9 36.
CHEWUKEF CREEK 1.ObO 461.0 0.Ooe 0.707 3. s2.
N. FORK MORGAN CREEK 0.100 46.6 0.010 0.746 0.8 52.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MFAN TOTAL N
(MG/LI (MG/LI
S. FORK MORGAN CREEK 0.011 1. I l i T

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — CADDO LAKE (EUTROPHIC)
COUNTY — CA000. LA; MARION, HARRISON, Tx
STORET 140, — 4807 WORKING PAPER NO. 637. NTIS ACCESSION NO. P6—270 033/AG
I. MORPHOMETRY
LAKE TYPE ORATNAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (S Q KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 1107.00 132.09 1.8 58.920 42.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
11. 114. 0.9 0.051 0.012 0.070 0.700
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WI)
18.0 0.6 — 2.2 ( 3) ( 3/23/74) N ( 5/31/14) N ( 8/26/74) NO DATA (11/11/14) N
SUMMARY OF PHYTOPLANKTON DATA
3123/14 5/31/74 6/ 3/74
GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 4960 LYNGBYA 15919 LYNGBYA 18932
CHLAMYDOMONAS 1114 MELOSIRA 2b21 MELOSIRA 5177
FLAGELLATES 861 DACTYLOCOCCOPSIS 1957 PENNATE DIATOMS 1923
RAPHIDIOPSIS 109 NITZSCHIA 1957 ANACYSTIS(MICROCYSTIS) 1331
NITZSCHIA 601 ANACYSTIS(MICROCYSTIS) 1141 MERISMOPEOIA 1035
OTHER 3493 OTHER 7255 OTHER 7543
TOTAL 11744 TOTAL 30816 TOTAL 35941
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 3415. Q**ttottt 260. 93400. 97075.
NITROGEN 6380. 9195. 1433455. 1449630.
3. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADiNG RATE
(KG/YR) RETENTION (6/SO M/YR)
PHOSPHORUS 103390. LOSS 0.13
NITROGEN 1775590. LOSS 11.0
V. NUN—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ 1 cM) (M6/L) (MG/ L i (KG/SO KM/YR) (KG/SQ KM/YR)
HARRISON BAYOU 0.930 112.9 0.091 0.731 24. 192.
KITCHEN CREEK 0.730 88.8 0.038 0.618 10. 161.
CYPRESS BAYOU 46.050 b542.6 0.052 0.121 13. 190.
MONTEREY LAKE OUTLET 1.480 909.1 0.043 0.621 1 1. 162.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/LI (MG/L)
TETE BAYOU 0.086 0.943
MILL CREEK 0.03$ 0. 598
JAMES BAYOU 0.044 0.657
HUNTS CREEK 0.046 1.050
TIGER BRANCH 0.056 0.98S

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SAUNDERS RRA’ ICH 0.062 0.637

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — CALAVERAS LAKE (EUTROPHIC)
CUUNTY — BEXAR
STORET NO. — 4808 WORKING PAPER NO. 638. NTIS ACCESSION NO. P9—268 306/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SO KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 174.60 13.9b 5.5 0.413 20.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/LP ORTPIO P(MG/L) INORG N(NG/L) TOTAL N(MG/L)
126. 562. 1.0 0.038 0.007 0.060 0.820
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WI)
22.5 I 3/13/74) N I 5/23/74) N ( 8/16/74) NO DATA (11/ 5/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/13/14 5/23/74 8/16/74 11/ 5/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
MERISMOPEDIA 3032 DACTYLOCOCCOPSIS 3190 OSCILLATORIA 2950 OSCILLATORIA 7756
CHROOMONAS 2592 (JITZSCHIA 1202 LYNGBYA 2397 DACTYLOCOCCOI S1S 3283
DACTYLOCOCCOPSIS 2298 MERISMOPEDIA 1110 RAPHIDIOPSIS 1696 CENTRIC DIATOM 938
NITZSCHIA 1467 ANABAENOPSIS 833 MERISMOPEOIA 1217 RAPHIDIOPSIS 649
CRYPTOMONAS 1320 MELOSII1A 832 ANA8AENOPSIS 1107 PENNATE DIATOMS 577
OTHER 9488 OTHER 6288 OTHER 7192 OTHER 2202
a:
TOTAL O197 TOTAL 13455 TOTAL 16559 TOTAL 15405 ,
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL IKG/YR) SEPTIC TANKS (KG/YR) (KG/YR) IIcG/YR)
PHOSPHORUS 10550. 10550.
NITMOGFN 0*0*0*0*0* 55455• 55455.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(K ,/YR) RETENTION (G/SQ M/YR)
PHOSPHORuS 175. 98. 0.76
NITROGEN 3245. 4. 4.0
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) (SQ KM) (MG/L) (MG/L) (KG/SO KM/YR) (KG/SO KM/YR)
CALAVERAS CREEK 0.040 32.9 0.114 1.215 4. 47.
CHUPADERAS CREEK 0.030 20.7 0.069 1.219 3. 56.
UNNAMED STREAM 0.010 6.7 0.130 1.304 6. 61.
SAN ANTONIO R. DIVR. 0.180 0*0*0*00*0 1.686 5.462 0000•00 000 *00*00*0*0

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — CANYON RESERVOIR (MESOTROPHIC)
COUNTY - COMAL
STORET NO. - 4809 SOPKING PAPER NO. o39. NTIS ACCESSION NO. P8-268 382/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (S Q KM) (METERS) (CMS) (YEARS)
IMPUUNOME ’IT 3719.20 33.35 14.0 8.7 5 6 1.0
II. PHYSICAL AND C’IEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI OISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CUNOUCTIVITYU.JMHOS) (METE RS) TOTAL PUlb/L) OH1 HO P(MG/L) INONG N(MG/L) TOTAL N(MG/L)
180. 373. 4.9 0.010 0.005 0.450 0.630
III. BIOLOGICAL CHAWACTERIST 1CS (LAKE)
MEAN CHLOROPHYLL A ALUAL ASSAY CONTROL YIELD LIMITING NUTRItNT AT SAMPLINI, TIME
CUG/L) (MG/L——rJRY WT)
2.5 0.1 — 0.1 ( 2) ( 3/13/74) P ( 5/22/74) P ( 8/15/14) NO DATA (11/ 5/74) P
SUMMARY LW PHYTOPLANKTON DATA
3fl3/74 5/22/74 8/15/74 11/ 5/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
(.HI400MONAS 217 CHROOMONAS 494 CRYPTUMONAS 345 CHROOMONAS 686
SYNEDMA 29 COELASTRUM 196 ANACYST1SDIICROCYSTIS 276 CRYPTOMONAS 112
MALLIJMUNAS 14 CRYPTOMONAS 99 CHROOMU’ IAS 242 UINOBRYON 103
NITZSCHIA 14 CYCLOTELLA 99 TETRAEDRON 104 SYNEDWA 103
DINORRYON 49 NAVICULA 69 CHLAMYDOMONAS 69
UFHER 1 OTHER 148 OTHER 310 OTHER 102 a....
TOTAL 275 TOTAL 1087 TOTAL 1346 TOTAL 1235
IV. NUTRIENT LOADIrt , CnARACTtRISTICS(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/ V P) (KG/YR)
PHOSPHORUS *oeoeeoe. 0 40 00 00444 20. 5100. 5120.
NITROGFN 0*040*0*4* 0*40*0040 835. 489980. 49081b.
3. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(K U/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 310 . 39. 0.15
NI IKUGFN IT4 IoU. 65. 14.7
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOIAL N TOTAL P EXPORT TOTAL N EXPORT
(CR5) (SO KM) (M G/L I (Mb/LI (KG/SQ KM/YN) (KG/S Q KM/YR)
GUADALUPE RIVER 7.560 3405.8 0.016 1.516 1. 127.
REBECCA CREEK 0.146 26. 2 0.011 0.46 1 2. 14.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — LAKE COLORADO CITY (EUTROPHIC)
COUNTY — MITCHELL
STORET NO. - 4810 WORKING PAPER NO. 640, NTIS ACCESSION NO. P8—268 338/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO ( CM) (SO ( CM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 834.00 6.52 6.0 0.336 3.9
I i. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P4MG/Li ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
141. 1640. 0.7 0.042 0.012 0.090 0.760
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(W ilL) (MG/I——DRY b IT)
12.7 4 .5 3/ 4/74) N 4 5/15/74) P ( 8/ 6/74) NO DATA (10/28/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/ 4/74 5/15/74 8/ 6/74 10/28/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
DIPLONEIS 2140 TETRAEDRON 3283 OSCILLATOPIA 10277 OSCILLATORIA 8779
OSCILLATORIA 2014 CHROOMONAS 1082 LYNGBYA 5755 NITZSCHIA 2287
FLAGELLATES 197 OIPLONEIS 830 NITZSCHIA 1953 DIPLONEIS 2164
SYNEORA 545 SCENEDESMUS 722 OOCYSTI5 445 TETRAEDRON 1266
DACTYLOCOCCOPSIS 336 OOCYSTIS 121 CRYPTOMONAS 445 LYNGBYA 1255
OTHER 1972 OTnER 310 OTHER 2501 OTHER 3605 —o
TOTAL 7804 TOTAL 9140 TOTAL 21376 TDTAL 19356 t
IV. NUTRIENT LOADING CHAQACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON-POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL IKG/YR) SIPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 0*0044*40* 0044044444 115. 1275. 1390.
NITROGEN *00*00*000 *04400*00* 4265. 21720. 25985.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 1385. 0. 0.21
NITROGEN 16620. 36. 4.0
V. NON—POINT-SOURCE NUTRIENI EXPORT
STREAM NAME MEAN FLOW OPAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (50 ( CM) (MG/L I (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
MORGAN CREEK 0.280 109.1 0.104 1.386 1. 17.
UNNAMED STREAM 0.010 26.4 0.273 1.369 4. 18.

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COMPENDIUM OF NATIONAL EUTROPHICATIUN SURVEY LAKES IN TEXAS
NAME — LAKE CORPUS CHRIST ! (EUTRUPPIC)
COUNTY — JIM WELLS. LIVE OAK, SAN PATRIC IO
STONE r NO. — 4811 wORKING PAPER NO. 641. NTIS ACCESSION NO. RS—268 325/AN
1. MURPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (S W KM) (METERS) (CMS) (DAYS )
IMPOUNDMENT 43169.40 88.63 4.2 25.400 175.0
II. PHYSICAL AN!) CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCr4I DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTTVITY(UMHOS) (M€.TENS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(M6/L) TOTAL N(MG/L)
161. 972. 0.6 0.113 0.050 0.130 0.640
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLINb TIME
(UG/L) (MG/L——DRY ul)
19.8 3.3 ( 3/12/74) N ( 5/21/74) N ( 8/14/74) NO DATA (11/ 5/74) N
SUMMAPY OF PHYTOPLANKTUN DATA
3/12/7 4 f21/14 8/14/14 11/ 5/74
GENERA COUNT GENFRA COUNT GENERA COUNT GENERA COUNT
MERISMDPFDIA 1330 CENTRIC DIATOM 1451 DIPLUNEIS 766 DIPLONEIS 2781
SCENEDESMUS 1216 DIPLONEIS 747 DACTYLOCOCCOPSIS 468 CENTRIC DIATOM 526
C ,iSOOMO JAS 814 SCENEDESMIPS 484 LYNGHYA 468 OOCYSTIS 301
KIWCHNERIELLA 874 MERISMOPEDIA 440 OSCILLATORIA 468 CHRUOMONAS 188
ANACYSTIS(MIC ROCfSTIS) 836 ANARAENA 396 RAPHIDIOPSIS 383 CHLAMYDOMONAS 113
OTHER 5209 OTHFR 2548 OTHER 2512 OTHER 901 a
TOTAL 10339 TOTAL 6066 TOTAL 5065 TOTAL 4810
Iv. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICiPAL (KO/YP) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 8500. 200. dO4255. 21295 5.
NITROGEN 21110. 7590. 1620175. 1648875.
I i. OUTPUT
OUTLET (S) PEQCENT LAKE SURFACE AREA LOADING NATE
IK O/YN) RETFNTION (6/50 M/YR)
PHOSPHORUS P4990. 60. 2.40
N ITROGFN 611415. 63. 18.6
V. NUN—POINT—SOURCE r.1tJTWIENT EXPORT
STREAM NAME MEAN FLOw r)PAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (50 KM) (MG/L I (MG/LI (KG/SQ KM/YR) (KG/SQ KM/YR)
NUECES RIVEN 24. 610 4 1559 •5 0.170 2.417 5. 3 5.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME - LAKE DIVERSION (EUTROPHIC)
COUNTY — ARCHER. BAYLOR
STORET NO. — 4R 12 WORKING PAPER NO. 642. NTIS ACCESSION NO. P8—268 356/A8
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ 1 (M) (SQ 1(M) (METERS) (CMS) (DAYS)
IMPOUNDMENT 5710.90 13.84 3.7 4.258 156.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALLN1TY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(M6/L)
81. 4530. 0.8 0.025 0.009 0.080 0.525
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY UT)
15.9 0.1 5/13/74) P ( 8/ 8/74) P (10/28/74) N
SUMMARY OF PHYTOPLAN1(TOM DATA
5/13/74 8/ 8/74 10/28/74
GENERA COUNT GENERA COUNT • GENERA COUNT
SCENEDESMUS 1546 APHANIZOMENON 4607 NITZSCHIA 1444
MERISMOPEDIA 579 OSCILLATORIA 3694 OSCILLATORIA 903
OSCILLATOHIA 483 LYNGRYA 1470 QOCYSTIS 650
OOCYSTIS 386 MERISMOPEDIA 1191 DIPLONEIS 289
CHROOMONAS 290 CHROOMONAS 357 CHROOMONAS 72
OTHER 1450 OTHER 1470 OTHER 218
TOTAL 4734 TOTAL 12189 TOTAL 3576
IV. NUTRIENT LOADING CHARACTEHISTICS(IAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL ( 1(6/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) ( KGIYR) (1(6 /YR)
PHOSPHORUS 40. 4540. 4580.
NiTROGEN O OOO**OO* 1470. 116995. 118465.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS 3515. 22. 0.33
NITROGEN 91090. 23. 8.6
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 1(M) (MG/L) (MG/L) 1c,/SQ 1(M/YR) (KG/SQ 1(M/YR)
WICHITA RIVIR 3.710 5402.7 0.032 0.760 0.7 16.
S ’RING CREEK 0.120 35.5 0.120 1.540 3. 60.
* ESTIMATED

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COMPENDIUM OF NATIONAL EUT ,WPnICATION SURVEY LAKES IN TEXAS
NAME — EAGLE MOUNTAIN LAKE (MESO-FUTROPHIC)
COUNTY — TAp 1RANT. WISE
STORET NO. — 4 j3 WORKING PAPER NO. 643. NTIS ACCESSION NO. P8-268 326/AB
I. MORPI IOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN OEPTH TOTAL INFLOW RETENTION TIME
(SQ 1 (M) (50 KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 5102.30 36.4 1 6.4 8.100 363 ,0
II. PrIYSICAL AND CHEMICAL CHARACTERISTICS
ME OIAN i4EDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVTTY(UMHOS) (METERS) TOTAL P(MG/L) ORTr$O P(M6/L) INORG N(MG/L) TOTAL N(MG/L)
1 15. 38 1. U.n 0.024 0.008 0.010 0.420
III. SIOLOGICAL CHARACTERISTICS (LAKE)
MEAI’o CHLOROPHYLL A ALt,AL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——ORY WT)
5.1 ( 3/ 7/14) P AND N ( 5/16/74) N ( 8/13/74) P AND N (10/30/14) N
SUMMARY OF PHYTOPLANKTON DATA
3/ 1/14 5/16/74 8/13/74 10/30/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
STEPHANODISCU5 606 NITZSCHJA 928 N ITZSC, IIA 207 MILUSIRA 306
CrI ROOMONAS 512 CHLOROPPIYTAN FILAMENTS 898 TRACHELOMUNAS 148 CHROOMONAS 275
FLAGELLATES 337 MELOSIRA 210 MELOSIRA 118 CYCLOTELLA 275
ANKIST RODESMUS 269 MERISMOPEDIA 210 ANABAENOPSIS 89 NITZSCHIA 244
DACTYLOCOCCOPSIS 236 FLAGELLATES 180 LYNGBYA 89 HERISMOPEO!A 183
oTHE R 1044 OTHER 898 OTHER 325 OTHER 886
TOTAL 3064 TOTAL 3324 TOTAL 976 TOTAL 2169
IV. NUTRIENT LOADING CMA’IACTtHISTICS(LAKE)
A. INPUT
POINt SOURCE POINT SOURCE. POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (Ift /YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/fl U
PHOS PHORUS 1155. 165. 53200. 5 51 20.
NITROGEN 3H80. 6290. 433860. 444030.
H. OUTPUT
OUTLET(S) PE RCENT LAKE SURFACE AREA LOADING RATE
(KG/ fR) RETENTION (G/5Q M/YR)
PHOSPHORUS Q3qu. R3. 1.51
NITROGFN 236255. 41. 12.2
V. NON—POLNT—SOUPCE FJUTRIENT EXPORT
STREAM NAME MEAN FLOW PI4AINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (Sq 1 ( n) (MG/U (M G/L I (KG/SO KM/YR) (KG/SI) KM/fR)
WEST FORK TRINITY RIVER 6. 500 4581.7 0.195 1.416 10. 74.
ASH CREEK 0.210 58.3 0.165 0.952 19. 109.
WALNUT C EE 0.620 181.0 0.15 9 1.543 10. 148.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
INDIAN CREEK 0.042 1.o71

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — LAKE FORT PHANTOM HILL (EUTROPHIC)
COUNTY — JONES
STORET NO. — 4814 WORKING PAPER NO. 644, NTIS ACCESSION NO. PB—269 235/AB
I. MORPHOM TRy
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1 (M) (SO 1(M) (METERS) (CMS) (YEARS)
IMPOUNDMENT 1238.00 10.93 5.6 1.198 2.2
II. PHYSICAL ANf) CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCMI DiSC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(r4G/L) CONDUCTIVITY(UMNOS) (METERS) TOTAL P 1MG/U ORTHO P(MG/L) INORO N(M9/L) TOTAL N(MG/L)
165. 654. 0.6 0.060 0.022 0.105 0.560
III. BIOLOGICAL CI4ARACTFRISTLCS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
6.3 6.2 3/ 6/74) N I 5/15/74) N ( 8/ 5/74) N (10/30/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/ 6/74 5/15/74 8/ 5/74 10/30/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 706 CHROOMONAS 743 COSCINODISCUS 3378 CHROOMONAS 803
SELENASTRUM 445 ANACYSTIS(MICROCYSTIS) 496 CIIROOMONAS 622 OOCYSTIS 223
ANACYSTIS(MICROCYSTIS) 131 CRYPTOMONAS 212 CHLAMYDOMONAS 445 CHLAMYOOMONAS 178
CRYPTOMONAS 105 CENTRIC DIATOM 177 ZOOSPORES 356 CENTRIC DIATOM 178
DACTYLOCOCCOPSIS 78 EUGLENA 177 MERISNOPEDIA 267 ANACYSTIS(MICROCYSTIS) 134
OTHER 183 OTHER 744 OTHER 1022 OTHER 402
TOTAL 1648 TOTAL 2549 TOTAL 6090 TOTAL 1918
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 IKG/YR) IKG/YR) (KG/YR)
PHOSPHORUS 125. 3900. 4025,
NITROGEN 4700. 86950. 91650.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 1550. 61. 0.37
NITROGEN 25050. 73. 8.4
V. NON—POINT—SOURCE r UTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL LN TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ 1(M) (MG/L) IMG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
ELM CREEK 0.200 644.9 0.087 1.643 0.9 16.
CEDAR CREEK 0.130 414.4 0.113 1.603 1. 16.
CLEAR EK BRAZOS I I. UIVR. 0.240 *04*00*04* 0.130 3.414 *.*°‘*.*.*
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGA(ED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/Li
‘3UCI( CREEK 0.049 2.202

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COMPEND iUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — LAKE LYNDON 8. JO-INSON (EuTROPHIc)
COUNTY — HURNET. LLANO
STORET NO. — 4821 WORKING PaPER NO. o45. NTIS ACCESSION NO. P6—269 2t3/A8
I. MURPHUMETRY
LAKE TYPE DRAINA6E AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(So KM) (SO KM) (METERS) (CMS) (DAYS)
IMRUUNOMENT 939 l.1O 25.80 6.7 37.430 56.0
i i. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY (MG/I) CONDUCTIVITY IUMHOS) (METERS) TOTAL P(M6/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
133. 455. 1.1 0.042 0.013 0.420 0.850
III. HIOLOGICAL CMAIIACTLRISTICS (LAKE)
MEAN CHLOROPi4YLL A ALI.iAI ASSAY CONTROL YJEID LIMITING NuTRIENT AT SAMPLIN(, TIME
(UG/LI (MG/L——DWY wT)
8.1 0.1 — 1.1 ( 2) 1 3/13/14) P I 5/21/74) P ( 8/16/74) NO DATA (11/ 4/74) P
SUMMARY or PSYTOPLANKTDN DAIA
3/11/74 5/21/74 11/ 4/74
OENERA COUNT GENERA COUN 1 (JENERA COUNT
SCENEDES MUS 299 FLAt ELLATES 1304 CRYPTOMONAS 188
DACTYLOCOCCOPSIS 256 CI4UC 1GENIA 783 MELOSI4A 125
CENTRIC DIATOM 214 CENTRIC DIATOM 783 STEPrIANODISCUS 12b
SYNED RA IdS aITZSCHIA 522 PENNATE DIATOMS 125
CFIYPIOMONAS 12’s SCENEDESMLJS 456 SCENEDESMUS 31
OTHER 214 UTHFR 2413 OTHER 2
TOTAL 123” TOTAL 6261 TOTAL 596
IV. NUTRIENT LOAOINb CHAPACTERISTICS(LAPCE)
A. INPUT
POINT SOu Cc POINT SOURCt POINT SOURCE NON—POINT SOURCE IOTAL LOADING
MUNICIPAL (KE/YR) INDUSTRIAL (KO/YW) SEPTIC TANKS (MG/YR) (KG / - vP) KG/ rR
r’HUSPHORIJS 1b445. *9 *0*0*0* 465. 19015. 3 5985.
NITROGFN 49310. *9*0 *9*0*0 17390. 931600. 998300.
i. OUTPUT
OUTLET(S) PERC ENT LAKE SURFACE AREA LOADING RATE
(KO/Yk) RETENTION (G/SU M/YR)
PHOSPHORUS 3. 1.39
NITROGFN 1092665. LOSS 38.7
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW UWAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CM ) (SO KMP (MG/LI (M UlL) (KG/SO KM/YN) (KG/SQ KM/YN)
at ICKROCK CREEK 0.050 23.3 0.011 0.615 0.6 44.
WALNUT CWEF 0.130 63.5 0.013 0.591 0.9 35.
SANDY CREEK 1.70 846.9 0.02 9 0.4’.0 2. 23.
HUNEY CPEFK 0.210 100.0 D.U1I 0.6 40 0.7 32.
LLANO RIVER 9.6N0 11473.1 0.029 1.35k 0.1 21.
CULUWADO RIVER 22.170 81092.8 0.0 2 5 1.001 0.2 8.
VI. MEAN NUTRIENT CONCENTRATIONS IN UN 6AUED STWEAMS
STREAM NAME MEAN TOTAL P MFAN TOTAL N
IMU/L) (MG/LI
PETEwS CREEK 0.0 12 0. I3

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME - LAKE KEMP (EUTROPHIC)
COUNTY — BAYLOR
STOREr NO. — 4816 WORKING PAPER NO. 646, NTIS ACCESSION NO. PB—268 263/AB
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SQ (H) (METERS) (CHS) (YEARS)
IMPOUNDMENT 5402.70 62.17 5.3 5.420 2.8
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCMI DISC MEDiAN MEDIAN MEDIAN MEDIAN
AIKAL-INITY-(MG/L) -CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(.M6/L) INORG N(NG/L) TOTAL N(146/L)
88. 3884. 1.1 0.023 0.007 0.110 0.510
III. 8IOLUGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLIN(, TIME
IU G/L) (MG/I——DRY WT)
10.2 0.1 ( 3/ 4/74) P ( 5/13/74) P C 8/ 8/74) P (10/28/74) P4
SUMMARY OF Pi$YTOPLANKTON DATA
3/ 4/74 5/13/74 8/ 8/74 10/28/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 1057 DOCYSTIS 674 ANABAENOPSIS 10492 OSCILLATORIA 2008
QOCYSTIS 88 CENTRIC DIATOM 530 OSCILLATORIA 2469 ANABAENOPSIS 1121
OSCILLATOPIA 433 PENNATE DIATOMS 1234 DIPLONEIS 327
ANACYSTIS(M ICROCYSTIS) 385 OOCYSTIS 823 LYNGBYA 234
SCENEDESMUS 337 IYNGBYA 720 PENNATE DIATOMS 187
OTHER 0 OTHER 2474 OTHER 1440 OTHER 373 —o
- ‘I
TOTAL 1145 TOTAL 41433 TOTAL 17178 TOTAL 4250
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL IKG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/TM)
PHOSPHORUS 215. 12025. 12240.
NITROGEN 8140. 207795. 215935.
b. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(K(,/YR) RETFNTION (6/SQ M/YRI
PHObPHORUS 3745. 69. 0.20
NITROGEN qA920. 59. 3.5
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) (SQ KSI) (MG/L) (MG/L) (KG/SO KM/YR) (KG/SQ KM/YR)
WICHITA RIVER 5.050 4853.7 0.064 0.8?3 2. 27.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — LAKE HOUSTON (EUTROPHIC)
COUNTY — HARRIS
STURET NO. — 4811 WORKING PAPER NO. 641, NTIS ACCESSION NO. P8—269 264/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE APEA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(S Q KM) (S Q KM) (METERS) (CMS) (DAYS)
IMP oUNDMENT 1324.50 49.53 3.7 44.730 55.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN IEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(Mfl/LI CONDUCT [ VITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
31. 222. 0.3 0.091 0.036 0.260 0.980
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/I——DRY wT)
16.6 4.4 ( 3/16/74) .‘ AND N ( 5/23/74) P AND N ( 8/19/74) NO DATA (11/ 6/14) N
SUMMARY tiE PHYTOPLANKTUN DATA
311 6/74 5/23/74 8/L9/74 11/ 6/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
MELDSIWA 2173 CRYPTUMONAS 313 CHYPTOMONAS 596 CRYPTOMONAS 108
CH ROOMONAS 73q ANKISTN’)DESMUS 251 CHROUCOCCUS 547 DACTYLOCOCCOPSIS 72
CYCLOTELLA f ’QI STEPrIANUDISCUS 251 OSCILLATOWIA 199 ANKISTRODESMUS 36
CHROOCOCCUS 462 FLAGELLATES 188 STEPHANOOISCUS 100 OOCYSTIS 36
MENISMOPEDIA 211 ACTTNASTNUM 125 PANDOMINA 100 OSCILLATORIA 36
t iTHER 1514 OTHER 1051 OTHER 214 OTHER 180 i.-.
- .3
TOTAL 5826 TOTAL 2179 TOTAL 1156 TOTAL 468 —
IV. NUTRIENT LOADING CHAPACTtRISTICS(LAKE)
A, INPUT
MOINI SOURCE P’UPIT SO URCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YP INDUSTRIAL (ttG/YR) SEPTIC TANKS (KG/VP) (KG/ fR) (KG/YH)
PHUSPHOWUS 14 5e55. 0*0 000 040 000000000* 15841s. 303670.
NITROGEN 43560 5. •• o••••••• 00*0*00* 1768970. 22045Th.
ii. UUTPUT
OUTLtT(S) PE RCENT LAKE SURFACE AREA LOADING PATE
(KG/Y&) RETENTION (G/50 M/YR)
PHOSPHOR US 1714%. 44. 6.13
NITROGEN 1 ,7 93 1 ,. 19. 44.5
V. NUN—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINA 6E AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (Mb/LI (Mb/LI (KG/SO YM/YR) (Kb/SO KM/YR)
WEST FK. SAN JACINTO P. 18.070 2095.0 0.148 1.111 40. 319.
CYPRESS CREEK 4,fli o 782.2 1.172 2.911 9 * 134.0
SPRING CREEK 5.570 1059.3 0.182 1.243 30. dU b.
CANEY CREEK 2.730 393.1 0.072 1.3 6 IS. 295.
PEACH CREEK 2.600 404.0 0.047 1.19 9 10. 243.
EAST FK. SAN .JACINTO N. 6.R20 911.2 0.078 1.dfl 11. 2 55.
LUCE BAYOU 3.060 461.0 0.0Mb 1.9o5 18. 411.
UNNAMED STREAM 0.360 53. ’ 0.0 9 5 1.401 20. 295.
0 ESTIMATED

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COMPENDIUM OF NATIONAL EUTROPHICATION SUWVEY LAKES IN TEXAS
NAME — LAKE 0’ THE PINES (FUTROPHIC
COUNTY — CAMP. MARION. MORRIS. UPSHUR
STORET NO. — 481 WORKING PAPER NO. 648, NTIS ACCESSION NO. P8—269 242/46
I. MORPhOMETRy
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KH) (SO KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 2201.50 75.27 4.1 17.418 221.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN -MEDIAN MEDIAN MEDIAN
A1KALINITy(MG ’L) -CONOUCTIVITYCLJMHOS) —(METERS) TOTAL P(MG/L) ORTHO P(N6/L) INORG N(MG/L) TOTAL N(MG/L)
21. 135. 1.5 0.031 0.011 0.090 0.530
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL Y1FLD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WI)
12.9 0.8 ( 3/22/74) N ( 5/31/74) P AND N C 8/23/74) NO DATA (11/ 8/74) N
SUMMARY OF PHYTOPLANKION DATA
5/31/74 11/ 8/74
GENERA COUNT GENERA COUNT
CHROOMONAS 1947 MELOSIRA 643
NITZSCHIA 974 CRYPTOMONAS 245
CYCLOTELLa F,82 SCENEDESMUS 214
KIRCHNERIELLA 682 CHROOMONAS 184
MELOSIRA 682 ANKISTRODESMUS 153
OTHER 2189 OTHER 489
TOTAL 7156 TOTAL 1928
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE * O1NT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KO/YR)
PHOSPHORuS 18930. 95. 4 600. 64625.
NITRO(,EN 53765. 3525. 665815. 723105.
H. OUTPUT
OUTLET(S) PERCFNT LAKE SURFACE AREA LOADING RATE
(IcG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 16810. 74. 0.86
NITROGEN 3R8395. 46. 9.6
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOT-AL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) ISO KM) (MG/L) (MG/L) (KG/SO K C/YR) (KG/SQ KM/YR)
JONES CRFFK 0.240 15.0 0.025 0.524 12. 269.
ELLISON CR. RES. OUTLET 1.280 95.8 0.029 1.276 12. 561.
GREASY CREEK 1.120 77.2 0.049 0.649 22. 317.
ROGGY CRFFK 1.540 233.1 0.097 0.963 20. 201.
SWAUANO CREEK 0.790 60.1 0.079 0.847 32. 467.
BIG CYPRESS CREEK 6.130 947.9 0.174 1.520 24. 262.
JOHNSON CP. RES. OUTLET 0.430 28.5 0.026 0.971 8. 446.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
COPELAND CREEK 0.032 0.564
ARMS CREEK 0.031 0.469

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LITTLE CPFEK 0. 933 0.b95
PRAIRIE CREEK 0. OQM 1.400
WILLIAMSON CREEK 0.075 1.081
OWY CREEK • t.519 3.d bR
ALLEY CPFFK 0.021 0. 401
• f flQw POINT SOIJkCE.
-J

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — LAKE LAVON (EUTROPHIC)
COUNTY — COLLIN
STORET NO. — 4819 WORKING PAPER NO. 649. NTIS ACCESSION NO. P8—268 309/AS
I. MORPHUMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA ! EAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SQ KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 1994.30 86.43 6.5 13.452 1.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN -SECCHI DISC MEDIAN MEDIAN MEOIAN MEDIAN
At%AtItIITY(MG/L) CONOUCTIVITYWMHOS) (METERS ) TGTAL P046/LI —ORTMO PINS/LI INORG N(MG/L) TOTAL N(M6/L)
133. 330. 0.4 0.063 0.018 0.180 0.410
III. 8IDLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TI-ME
(UG/L) (PG/L——DRY VT)
5.4 ( 3/ 8/14) P AND N 1 5/20/14) P ( 8/12/74) P AND N (10/31/14) N
SUMMARY OF PHYTOPLANKTON DATA
3/ 8/74 5/20/74 8/12/74 10/31/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 559 MELOSIRA 166 MELOSIRA 566 ME-LOSIRA 1334
CENTRIC D1ATOM 473 CRYPTOMONAS 124 OOCYST1S 119 STEPHANODISCUS 714
CHROOMONAS 30-1 STEPHANODISCUS 124 STEPHANODISCUS 30 CHROOMONAS 48
DACTYLOCOCCOPSIS 129 CHROOMONAS 83 CLOSTERIUM 30
ANABAENA 43 CHLOROPHYTAN CELLS 41 CHROOMONAS 30
OTHER 87 OTHER 0 OTHER 59 OTHER 0 —
- ‘I
TOTAL 1592 TOTAL 538 TOTAL 834 TOTAL 2096
IV . NUTRIENT LOADING CHARACTEHISTICS(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 27260. 80. 61365. 88705.
NITROGEN 59S5O. 3100. 808465. 871115.
ti. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING-RATE
(KG/YR) RETENTION (6/SO M/YR)
PHOSPHORUS 20000. 17. 1.03
NITROGEN 395285. 55. 10.1
V. NONPOINTSOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (MG/ U (MG/L) (KG/SO KM/YR) (KG/SQ KM/YR)
EAST FORK TRINiTY RIVER 4.230 536.1 0.234 2.083 54. 513.
WHITE ROCK CREEK 0.150 18.1 0.026 2.241 7. 576.
WILSON CREEK 2.050 295.3 0.445 2.665 37. 453.
SISTER GROVE CREEK 1.980 292.7 0.098 1.445 18. .101.
PILOT GROVE CREEI 3.410 507.6 0.115 1.3U1 21. 212.
INDIAN CREEK 0.830 115.3 0.036 0.713 15.° 383.
VI. MEAN NUTRIENT CONCENTRATIONS IN IJNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MU/U
ELM CREEK 0.284 2.008
AWNOLO CREEK 0.109 0.8Th
* ESTIMATED

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES jN TEXAS
NAMF — LAKE LEWISVILLE
C0IJr ITY — DENTON
STORET P .O. - 48 15
(FUTRi)I* .IC)
SOWKING PAPER NO. 650. NTIS ACCESSION NO. P8—268 288/AB
I. MO RPIIUMETHY
LAKE TYPE ORAINAGE AREA
(SQ 1(M)
iMPOUNDMENT 4299.40
SURFACE AREA
(SQ KM)
93.93
MEAN DEPTH
( .IETERS)
6.0
TOTAL INFLOW
(CMS)
17. 507
RETENTION TIME
(YEARS)
0.8
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CMI OPOP’tYLL A ALOAL ASSAY CONTROL YIELD
IliG/L) (MG/I——DRY wT)
14.2 0.1 — 0.2 I 2)
GENERA
CrnOOMONAS
sTEP l ANODtSCUS
CRYPTOMONAS
OTHE R
TOTAL
GENEQA
CI IRUOMONAS
CRYP TOMONAS
CERATIOM
EUGLENA
P4ER ISMOPEDI A
0 OTwR
COUNT
308
154
51
51
51
206
GE NEP) A
RAPHI DIOPSIS
SYNEDR A
CENTRIC DIATOM
LYNGSYA
OSCILLATOPIA
OTHER
COUNT
1627
757
568
530
530
605
46 17 TUTAL
0 I—
- ‘1
90 — :
Pr iOSP u IOWUS
NI TROGFN
8. OUTPUT
I ’M USPHO PUS
NIT WOGFN
POINI SOURCE
MUNICIPAL (KG/YR)
34060.
175260.
OUTLtT (5)
1M 1 / IR)
36980.
579400.
POINT SOURCE
INDUST RIAL (Kb/YW)
00*0*00*0*
* 0*0 *0 * *0*
PE RCENT
RE lENT ION
‘iN.
49.
POINT SOURCE
SEPTIC TANKS (KG/ W I
*0*0*00*0
0*0*0*0*0*
NON—POINT SOURCE
IKG/ YR I
83045.
871470.
TOTAL LOADING
(KG/flU
1 17l0 .
1046730.
URAINAGE APEA
(5) 1(M)
9M ’ • 8
7#i4.0
6 148.9
1 5.5
MEAN TOTAL P
(M(,/L)
0.270
o.oao
0 .143
0.276
MEAN TOTAL N
(MG/LI
2 • 2d b
0.94 1
1 .38e,
1.9dM
TOTAL P EXPORT
(KG/SQ KM/YR)
35.
7.
23.
45.
TOTAL N EXPORT
(KG/Sw Kt4/Y4)
290.
82.
223.
360.
VI. MEAN NUTRIENT COI’ICtNTRATIONS IN UNOAGEt) 5TwEAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/LI (Mb/LI
MUCK CREEK (K—Il 0.739 1.s 52
8(JCK CREEK (L—1) 0.207 1. 735
HICKORY CREEK 0.145 1.6Mg
HOG CHEEK 0.108 I.5R4
RANGE CREEK (6—1) 0.208 1.640
II. PHYSICAL AND CHEMICAL C HARACTEPISTICS
MEDIAN MEDIAN
ALKALINITY (MG/LI CONDUCTIVITY(UMHOS)
1 13. 320.
UEAN SECCP’I DISC
(METE RS)
0.6
MEDIAN
TOTAL P(MG/L)
0. 04 5
MEDiAN
ORTi IO P(MG/L)
0.018
MEDIAN
INURG N(MG/L)
0.380
MEDIAN
TOTAL N(MG/L)
0.655
LIMITINO NUTRIENT AT SAMPLING TiME
I 3/11/74) P
SUMMARY OF PHYTOPLANKTON DATA
3/11/74 5/17/74
COUNT
87
65
43
5/17/74) P AND N ( 8/12/74) P AND N (10/31/74) P AND N
8/12/74
195 TOTAL
IV. NUTRIENT LOADING CiiAWACTEPISTICS(LAKF)
A. INPUT
821 TOTAL
10/31/74
GENERA
CRYPT OMON AS
SCENE DESMUS
CHRYSUPHYTAN CELLS
OTHER
COUNT
30
30
30
V. NUNPU1NTSOIJ’ICE NUTRIENT EXPORT
STREAM NAME MEAN FLO4
(CR5)
ELM FORK TRINITY RIVER 4. OMO
CLEAR CREEK 7.100
ISLE 00 4015 CREEK 3.520
LITTLE ELM CREEK 1.1 40
LAKE SURFACE AREA LOADING PATE
(6/SQ M/YR)
i.2 5
11.1

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RANGE CREEK (.J—1) 0.209 .704
I- .
- 1

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME - LIVINGSTON RESERVOIR (€UTR OPMIC)
COUNTY — POLK. SAN JACINTO. TRINITY. wALKER
STOwU NO. - 4820 WORKING PAPER NO. 651. NTIS ACCESSION NO. P8—268 393/48
I. MOWPMOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN )EPTH TOTAL INFLOW RETENTION TIME
(S Q KM) (S Q KM) (METERS) (CMS) (DAYS)
IMPOUNOMENT 42950.00 334.28 6.5 19 1.576 130.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(M6/L) TOTAL N(MG/L)
M g. 376. 0.9 0.196 0.128 O.b SS 1.310
I II. bIOLOGICAL CHALACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(&JG/L) (MG/L——DRY NT)
16.1 1.2 — 23.0 ( 2) ( 3/16/14) ‘1 ( 5/24/74) N ( 8/19/74) NO DATA (11/ 6/74) N
SUMMARY OF PPIYTOPLANKTUN DATA
3/16/74 5/24/74 8/19/74 11/ 6/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CYCLO IELLA 5017 CENTRIC DIATOM 9691 DACTYLOCOCCOPSIS 7832 STEPHANODISCUS 521
MELOSIRA 1636 MERISMOPEPIA 1068 CYCLOTELLA 6633 MELOSIRA 137
STEPHANODISCLJS 1236 CARTEHEA 916 MERISMOPEDIA 6562 CRYPTUMONAS 137
CrflEOOMONAS 763 CHROOMONAS 681 DSCILLATORIA 5151 (JSCILLATORIA 82
SYNEDWA 473 ME(Jfl RA 686 WAPMIOIOPSIS 3669 DACTYLOCOCCOPSIS 82
OTHER 363 OTHER 2443 OTHER 2752 OTHER 138 —
- U
TOTAL 9488 TOTAL 15491 TOTAL 32599 TOTAL 1097
IV. NUTRIENT LOADING CHAPACTEWISTICS(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/ V P)
PHUSPMORIJS 42240. 30. 2106290. 2148560.
NITROGEN 118460. 1110. 12252075. 12371645.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/V P) RETENTION (ti/SO M/YR)
PHOSPHORUS 923050. 57. 6.43
NITROGEN 1703650. 38. 31.0
V. NUN—PUINT-SOU4CE NUTWIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN IOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (50 1 (M) (MG/U (MG/L) (KG/SQ KM/YR) (KG/SO KM/YR)
TRINITY RIVER 173.930 39943.U 0.379 2.146 52. 292.
PALMETTO CREEK 0.190 52.3 0.029 0.7 26 4. 90.
EAST CAROLINA CHEEK 0.120 31.6 0.021 0.770 3. 94.
‘ IARMON CHEEK 0.500 114.0 1.211 3.4 04 3 0 90.t
ROCKY CREEK 0.4h0 100.8 0.028 0.7 D 4. 114.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MFAN TOTAL N
(MG/L) (M6/L)
WEST CAROLINA CREEK 0.067 0.9)1
CHALK CREEK 0.026 0. 115
KICKAPOO CREEK 0.094 0.896
* ESTIMATED

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NAME — MEDINA LAKE
COUNTY — BANDERA. MEDINA
STORET P40. — 4822
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA
(SQ KM)
IMPOUNDMENT 1642.10
I I. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY UMHOS)
179. 384.
III. BIOLOGICAL CHARACTERISTICS (LAKE)
HEAP. CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WT)
12.9 0.1
OF PHYTOPLANKTON DATA
5/22/ 14
GENERA COUNT GENERA
DINOBRYON 1320 ANACYSTIS (MICROCYST IS)
CHROOMONAS 543 FRAGILARIA
COELASTRUM 311 COELASTRUPA
FRAGILARIA 272 CYCLOTELLA
CYCLOTELLA 233 CHLORORHYTAN FILAMENTS
OTHER 421 OTHER
TOTAL 3106 TOTAL
IV. NUTRIENT LOADING CHAPACTERISTICS(LAKE)
A. INPUT
POINT SOURCE
MUNICI-PAL (KG/YR)
PHOSPHORUS 1135.
NITR OGFN 3400.
B. OUTPUT
1)UTLET CS)
(KG / IN)
PHOSPHORUS 1160.
NITROGEN 81290.
V. NON—POINT-SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(CMS)
MEDINA RIvER 3.510
RED SLUFF CREEK 0.310
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED
STREAM NAME MEAN TOTAL P
(MG/L)
ELM CREEK 0.010
WEST PRONG, MEOINA RIVEN O. f l13
LAKE SURFACE AREA LOADING RATE
(6/SQ M/YR)
0.13
9.3
COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
(MESO-EUTROPHIC)
WORKING PAPER NO. 652, NTIS ACCESSION NO. P6—268 29-7/a
SURF-ACE AREA
(SO MM)
22 • 56
-MEA II DEPTM
(METERS )
13.9
TOTAL INFLOW
-4CMS)
4.490
RETENTION TIME
(YEARS)
2.1
SUMMARY
3/12/1 4
MEAN SECCHI DISC
MEDIAN
MEDIAN
MEDIAN
MEDIAN
(METERS)
TOTAL P(MG/L)
-ORTHOP(MG/L)
INORG
N(MG/-L)
TOTAL
N(MG/L)
2.4
0.010
0.004
0.600
0.180
LIMITING NUTRIENT AT SAMPLING TIME
3/12/74) P 1 5/22/14) P ( 8/15/14) NO DATA 111/ 5/74) P
COUNT
GENERA
COUNT
GENERA
COUNT
607
ANACYSTIS(MICROCVSTIS)
590
CRYPTOMONAS
131
580
CHLOROPHYTAN FILAMENTS
461
APHANOTHECE
33
359
SCENEDESMUS
264
CLOSTERIUM
33
193
CHROOMONAS
198
DACTYLOCOCCOPSIS
33
166
CYCLOTELLA
198
FLAGELLATES
33
663
OTHER
858
OTHER
0
-
=
2568
TOTAL
2569
TOTAL
263
POINT SOURCE
INDUSTRIAL (KG/YR)
t n t . . . . . .
*4 * * 4 C 0 0 *4
PERCENT
RETENTION
AO.
59.
POINT
SOURCE
NON-POINT SOURCE TOTAL LOADING
SEPTIC
TANKS (KG/VP) (KG/YR)
125. 1625.
4145. 202275.
(KG/YR)
2885.
210420.
MEAN TOTAL P
(MG/L)
0.0 18
0.010
DRAINAGE AREA
(5 ’) 1CM)
1227.7
145.8
STREAMS
MEAN TOTAL N
(Mb/L)
3.444
0.196
MEAN TOTA l. N
(Mb/L)
1.313
1.960
TOTAL P EXPORT TOTAL N EXPORT
(KG/SQ KM/YR) (KG/SQ KM/YR)
0.1 116.
0.7 131.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — LAKE MEREDITH (MESOTROPHIC)
COUNTY — HUTCHINSON . MOORE. POTTER
STORET NO. — 4823 WORKING PAPER NO. 653, NTIS ACCESSION NO. P6—268 302/48
I. F4ORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 41564.30 66.17 16.0 6 .884 8.6
II. PHYSICAL ANt i CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEOIAN MEDIAN MEDIAN
AL6ALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L)- ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
188. 1538. 1.5 0.021 0.009 0.070 0.435
III. SIOLOGICAL CHARACTERISTICS (LAFE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
3.0 3/ 5/743 N ( 5/14/74) p AND N ( 8/ 7/74) P AND N (10/28/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/ 5/TA 5/14/14 8/ 7/74
GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 734 OOCYSTIS 801 CHROOMONAS 286
OOCYSTIS 341 NITZSCHIA bib CRYPTOMONAS 82
FLAGELLATES 262 BINUCLEARIA 476 COELASTRUM 41
CRYPTOMONAS 105 CHROOMONAS 450 ANACYST IS(MICRUCYSTIS) 20
STEPHANODISCUS 52 STEPHANODISCUS 316 OOCYSTIS 20
OTHEH 105 OTHER 530 OTHER 62
TOTAL 1599 TOTAL 3188 TOTAL 511
IV. NUTRIENT LOADING CHAPACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KGIYR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YH) (KG/YR) IKG/YR)
PHOSPHORUS 123605. 304350. 427955.
NITROGEN P0 110. 1258360. 1629070.
8. OUTPUT
OUTLET(S) PEPCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS i s O’ ). 100. 6.41
NITROGEN ib lAb. 95. 24.4
V. NON—POINT—SOURCE NUTRIENT EXPOPT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (MG/L I (MG/L) (KG/SO KM/YB) (KG/SQ KM/YB)
CANADIAN RIVER 6.290 39*i23.a 2.150 7.800 8. 30.
BONITA CREEK 0.060 16o.8 0.019 0.595 0.2 6.
BIG BLUE CREEK 0.250 665.6 0.016 0.571 0.2 7.
BUGPIEE CREEK 0.010 19.7 0.016 0.731 0.3 6.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
— PALESTINE RESERvOIR (EUTROPHIC)
— ANOERSOtI. CHENUKEE, HENDERSON. SMITH
NO. — 48d4 WORKING PAPER NO. 654. NTIS ACCESSION NO. P8—269 -245/AS
III. SIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(UG/L) (MG/L——DRY WT)
1-0.6 1.9
LIMITING NUTRIENT AT SAMPLIN6 TIME
3/ 9/74) P ANO N (5/11/74) P AN8 N ( 8/13/741 NO DATA (11/ 1/74) P AND N
1647 rc
PHOSPHOR US
NITROGFN
H. OUTPUT
PHOSPHORUS
NITROGEN
POINT SOURCE
MUNICIPAL (KO/YR)
45830.
137430.
J1LET (5)
(K G/ fR)
8995.
d3150b.
POINT SOURCE
INDUSTRIAL JKG/YR)
*0 *0* *0 *0*
*0*4*0*0*0
PERCENT
RETENT ION
87.
51.
POINT SOURCE
SEPTIC TANKS 1KG/YR)
000 00000 0 0
*0*0*0*0*0
NON—POINT SOURCE
(IcG/YR)
-23825.
4’04 130.
TOTAL LOADING
CKG/YR)
69655.
541560.
DRAINAGE AREA
(50 ( CM)
564.6
170.9
600.9
60.1
MEAN TOTAL P
(MG/L)
1.055
0.063
0.084
0.051
MEAN TOT N
(MG/ I.)
3.176
0.719
0.7d0
0.516
-TOTAL P EXPORT
(KG/SQ KM/VP)
8.
12.
11.
10.
TOTAL N EXPORT
(KG/SQ KM/YR)
88.
160.
160.
114.
NA ME
CUUN T Y
SIORET
I. MORPHOMETRY
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITYUIG/L) CONDUCTIVITY (UMHOS)
24. 14A.
LAKE
TYPE
DRAINAGE AREA
(SO ( cM)
SURFACE AREA
(S O ( CM)
MEAN -OEPTH
(METERS)
-tOT-A l. INFLOW
CCMS)
RETENTION TIME
(YEARS)
IMPOUNDMENT
d2Ol.50
103.44
4.9
12.616
1.3
MEAN SECCHI DISC
(METERS)
1.5
tIED IAN
TOTAL P(MG/L)
0.031
SUMMAPY
3/ 9/74
MED I AN
ORTHO P(MG/L)
0.010
OF PHYTOPLANKTON DATA
MEOIAN
INORG N(MG/L)
0.180
MEDIAN
TOTAL N(MG/L)
0.660
5/11/14 8/13/14 11/ 1/74
IV. NUTMIENT LOAOING CP4ARACTERISTICS(LME)
A. INPUT
GENERA
COUNT
GENERA
COUNT
GENERA
COUNT
GENERA
COUNT
MELOSIRA
1452
MELOSIRA
1032
DACTYLOCOCCDPSIS
1297
MELOSIRA
947
C 1IROOMONAS
881
CHROOMONAS
534
MELOSIRA
605
DACTYLOCOCCOPSIS
245
CRYPTOMONAS
614
DACTYLOCOCCOPSIS
138
CRYPTOMONAS
577
COCCOID CELLS
105
ANACYSTIS(MICROCYSTIS)
441
ANACYSTIS(MICROCYSTIS)
138
PENNATE DIATOMS
548
NITZSCMIA
105
ANKISTRODESMUS
285
CRUCIGENIA
120
RAPHIDIOPSIS
490
ANACYSTIS(MICROCYSTIS
35
OTHER
907
OT hER
688
OTHER
1585
OTHER
210
TOTAL
4640
TOTAL
2650
TOTAL
5102
TOTAL
V. NON-POINT—SOURCE NUTRIENT EXPORT
-STREAM NAME MEAN FLOW
(CMS)
NECHES RIVER 2.080
FLAt CREEK 1.150
KICKAPOD CREEK 3.130
INDIAN CREEK 0.400
LAKE SURFACE AREA LOADING RATE
(G/SO M/YR)
0.67
5.2

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CUMPENDIUI4 OF NATIONAL EUTROPHICATION SUrIVEY LAKES IN TL*AS
NAME — POSSUM KINGDOM RESERVOIR (ME5Q-EIJTRQPHIC)
COUNTY — PALO PINTO. ST&HENS, YOUNG
STORET NO. — 48d5 WORKING PAPER NO. 655, NTIS ACCESSION NO. P8—268 337/AB
I. MORPI4OMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SQ KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 58404.50 80.13 11.2 28.590 1.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALIN!TY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P1MG/I) ORTr4O P(MG/L) !NORG N(MG/L) TOTAL N(MG/L)
103. 3517. 2.1 0.023 0.009 0.070 0.520
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A AL6AL ASSAY CONTROL YIELD LIMITiNG NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——ORY WT)
9.5 ( 3/ 8/74) N I 5/16/74) P AND N ( 8/ 9/74) P AND N (10/30/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/ 9/74 5/16/74 8/ 9/74 10/30/74
GENERA COUNT GENERA COUNT bENEWA COUNT GENERA COUNT
CHROOF4ONAS 1391 CHROOMONAS 778 LYNGBYA 3649 OSCILLATORIA 6224
OOCYSTIS 1089 TETRAEDRON 733 ANABAENOPSIS 1622 DACTYLOCOCCOPSIS 2948
SCENEDESMUS 514 CARTERIA 412 RAPHIDIOPSIS 838 CHROOMONAS 837
ANKISTRODESMuS 91 OOCYSTIS 366 MERISMOPEDIA 595 QOCYSTIS 655
PENNATE DIATOMS 60 ANKISTRODESNUS 183 ANABAENA 378 RAPHIDIOPSIS 437
OTHER 21 OTHFR 458 OTHER 1540 OTHER 1093
TOTAL 3266 TOTAL 2930 TOTAL 8622 TOTAL. 12194
IV. NUTRIENT LOADING CPIARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POI JT SOUHCL POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/fR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 8 30. G*4**e 4*o 255. 207480. 216665.
NITROGEN 26315. 9535. 1596285. 1632135.
. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/TM) RETENTION (G/SQ M/YR)
PHOSPHORUS 29H3 5. 86. 2.70
NITROGEN 1006145. 38. 20.4
V. NON—POINT—SOURCE NUTf IENT EXPORT
STREAM NAME MEAN FLOW flRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO KM) (MG/L) (MG/LI (KG/SQ IcH/Yk) (Kb/SJ KM/YR)
RAZOS RIVER 25.020 56736. 0.297 1.627 3. 24.
CEDAR CREEK 0.890 347.1 0.125 1.456 8. 132.
ROCK CREEK 0.670 274.b 0.080 1.111 4. 96.

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COMPENDIUM OF NATIONAL EUTROPHICAtION SURVEY LAKES IN TEXAS
NAME — 0. C. FISHER (EUTROPHIC)
COUNTY — TOM GREEN
STORET NO. —--4826 WORKING PAPER NO. 656. NTIS ACCESSiON NO. PB—26&. 28&A8
I. MORPHOMETRY
LAKE TYPE l AINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW REJENTI-ON lIME
150 KM) S0 KNI (METERS) (CMS) (YEARS)
IMPOUNDMENT 3853.90 21.85 6.5 0.796 11.-U
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEOIAN $EDIAtd MEDIAN MEDIAN
ALK-ALINITYU4G /L) CONDUCTIVITY(UMIIOS) (METERS) TOTAL P M6/L) ORT-HO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
154. 459. 0.5 0.098 0.011 0.140 0.995
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING -NUTRIENT AT SAMPLING -TIME
(IJG/L) (MG/L——DRY WT)
?4.7 5.2 ( 3/ 4/74) N ( 5/15/74) P C 8/ 5/741 NO DATA (10/29/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/ 4/74 5/15/74 8/ 5/74 10 129/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
NITZSCNIA 9005 NITZSCHIA 3289 OSCILLATORIA 25208 CHLAMYDO$ONAS 3512
ANKISTRODESMUS 4407 CYCLOTELLA 2388 RHOICOSPHENIA 10905 CYCLOTELLA 1115
CHROOMONAS 2810 RHOICOSPHFNIA 117 DACTYLOCOCCOPSIS 8355 CRYPTOMONAS 725
DACTYLOCOCCOPSIS 2363 SCENEDESr4US 902 PENNATE DIATOMS 5381 CHROOMONAS 502
KIRCHNERIELLA 2299 STEPHANODISCUS 901 MERISMOPEDIA 3044 NITZSCHIA 502
OTHER 9265 OTHER 7119 OTHER 19332 OTHER 2005
TOTAL 30149 TOTAL 15771 TOTAL 72225 TOTAL 8361
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 1395. 1395.
NITROGEN 69910. b9910.
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION ‘4G/SQ M/YRI
PHOSPHORUS 1)60. 7. 0.06
NITROGEN 13070. 81. 3.2
V. NON—POINT—SOURCE NUT IEJT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (Mb/I) (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
NORTH COPICHO RI’IER 0.670 3234.9 0.042 1.948 0.3 13.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME - SAM RAYBU.(N RESERVOIR (EUTROPHIC)
COUNTY - ANGELINA , JASPER, NACOGDOCHES . SABINE. SAN AUGUSTINE
STOWET I O. - 4821 WORKING PAPER NO. 657, NTIS ACCESSION NO. P6—268 310/Ab
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SU (N) (METERS) (CHS) (YEAiS)
IMPOUNDMENT 8932.90 463.48 7.7 43.440 1.4
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(uHHOS ) (METERS) TOTAL P(MG/L) ORTHO P(M6/L) INOPG N(MG/L) TOTAL N(MG/L)
24. 143. 1.5 0.029 0.009 0.150 0.600
Ill. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——ORY 8T
6.3 ( 3/18/74) P AND N ( 5/24/74) P ( 8/23/74) N (11/ 8/74) P AND N
SUMMARY OF PHYTOPLANKTON DATA
3/18/74 5/24/74 8/23/74 11/ 8/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
MELOS IRA 2395 CHROOMONAS 627 OACTYLOCOCCOPSIS 7930 CHROOMONAS 1204
CHROOMONAS 629 MELOSIRA 297 LYNGBYA 1478 MELOSIRA 339
CRYPTOMONAS 169 CPYPTOMONAS 165 ANABAENOPSIS 1034 CRYPTONONAS 113
NITZSCIIIA 145 STEPHANODISCUS 165 MELOSIRA 198 DACTYLOCOCCOPSIS 113
CENTRIC DIATOM 145 SYNEOWA 132 SYNEURA 197 SCENEDESI4US 113
OTHER 340 OTHER 659 OTHER 394 OTHER 149
TOTAL 3823 TOTAL 2045 TOTAL 11231 TOTAL 2031 i
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) (ItG/YR) (KG/YR)
PHOSPHORUS 28525. 35. 111495. 140055.
NITROGEN 84375. 1300. 1606345. 1692020.
8. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADiNG RATE
(KG/YR) RETENTION (G/S4 M/YR)
PHOSPHORUS 80910. 42. 0.30
NITROGEN 1554360. A. 3.7
V. WON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) St KH) (MG/L) (MG/u (KG/SQ KM/YR) (K6/S ( KM/YR)
ANGELINA RIVER 23.100 4410.d 0.109 0.980 14, 149.
BAYOU CARRIZO 0.500 211.3 0.072 0.964 5. 64.
ATTOYAC BAYOU 9.070 1302.8 0.092 0.878 20. 193.
AYI H BAYOU 1.4 ,0 341.9 0.071 0.703 2. 72.
MCKIM CREEK 0.200 14.o 0.030 0.555 3. 48.
PAPERMILL CREEK 0.100 78.5 0.234 2.680 11. 9.
POMPONA(JGi4 CREEK 0.200 35.7 0.239 1.694 38. 329.
Vi. MEAN NUTRIENT CONCLNTkATIOI S IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/I)
ALMADEROS CREEK 0.054 0.630
MILL CREEK 0.019 0.54M

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ROCK CREEK 0.015 0.545
wEST PRONG MCKIM CREEK 0.011 0.591
EAST PRONG ‘4CKtI4 CREEK 0.0 14 0.5 8 4
R088IT CREEK 0.059 0.745
SANDY CREEK 0.065 0.156
HARVEY CREEK 0.073 0.705

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — E. V. SPENCE RESERVOIR (EUTROPHIC)
COUNTY — COr E
STOKET NO. — 4828 WORKING PAPER NO. 6S8 NTIS ACCESSION ND. P8—268 283/AU
I. MORPHUMETRY
LAKE TYPE DRAINAGE AREA
(SQ KM)
IMPOUNDMENT 40166.60
II . PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN
ALKALINITY (M(YL) CONDUCTIVITY (UMHOS)
135. 1910.
III. A IOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALbAL ASSAY CONTROL YIELD
(UGIL) (MG/L——DRY WT)
11.8
OF PHYTOPLANKTON OATA
8/ 5/74
GENERA COUNT GENERA
TETRAEDRON 2407 OSCILLATOPIA
SCENEDESMUS 2295 RAPicIO IOPSIS
CRYPTOMONAS 263 LYNGBYA
CHROOMONAS 226 DACTYLOCOCCOPSIS
SYNEDRA 188 TETRAEDRON
OTHER 414 OTHER
TOTAL 5793 TOTAL
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOU’lCE
MUNICIPAL (KG/YR)
PHOSPHORUS
NITROGEN
H. OUTPUT
OUTLET (5)
( 1 <6/YR )
PHOSPHORUS 720.
NITROGEN 14945.
V. NON—POINF—SOURCE NUTRIENT EXPOPT
STREAM NAME MEAN FLOW
(CMS)
COLUWADO RIVER 1.830
PAINT CREEK 0.010
COUNT
13268
6761
1732
887
507
2958
26113
MEDIAN
TOTAL N(MG/L)
0 .630
(SO
KM)
(METERS)
(CMS)
(YEARS )
25.62
6.7
2.059
7.1
MEAN SECCHI DISC
(METERS)
0.9
MEDIAN
TOTAL P(MG/L)
0.036
SUMMARY
3/ 4/14
MEDIAN
ORTHO P(MG/L)
0.008
MEDIAN
INORG N(MG/L)
0.080
LIMITING NUTRIENT AT SAMPLING TIME
3/ 4/74) N ( 5/15/74) P
8/ 5/74) NO DATA (10/29/74) P AND N
COUNT
13345
5537
3691
2343
2130
2626
29612
10/29/74
GENERA
OSCILLATORIA
DACTYLOCOCCOPS IS
TETRAEDRON
RAPHIDIOPSIS
DOCYSTIS
OTHER
TOTAL
POINT SOURCE POINT SOURCE
INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR)
00*00*00
*000*0*0*0 00*00*0000
PERCENT LAKE SURFACE AREA LOADING RATE
RETENTION (6/SQ M/YR)
9c. 0.55
81. 4.6
- ‘S
NON—POINT SOURCE
(KG/YR)
14120.
118660.
TOTAL LOADING
(KG/YR)
14120.
118660.
DRAINAGE
AREA
MEAN
TOTAL P
MEAN
TOTAL N
TOTAL
P
EXPORT
TOTAL N EXPORT
(SO 1 (M)
(MG/Li
(MG/L)
(KG/SQ KM/YR)
(KG/SQ
KM/YR)
40124.3
0.230
1.448
0.3
2.
67.6
0.055
1.030
0.8
16.

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COMPENDIUM OF NATIONAL EUTROPHICATION SU VEY LAKES IN TEXAS
NAME — SOMERVILLE LAKE (EUTROPHIC)
COUNTY — BUWLESON. LEE. WASHINGTON
STORET NO. — 4829 WORKING PAPER NO. 659. NTIS ACCESSION NO. P8—268 296/AS
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO NM) (S Q NM) (METERS) (CMS) (YEARS)
IMPOUNDMENT 2610.70 46.38 4.3 7.820 0 .6
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEOIAN MEDIAN MEDIAN
ALKALJNITY1NGIj) -CONDUCT!VITY(%JMpIOS) (METERS) -TOTAL P(MG/L OR-Tt$O PCMG/L INORG N1MG/L) TOTAL N(MG/L)
46. 395. 0.7 0.053 0.013 0.115 0.720
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
24.5 2.1 — 3. ( 2) ( 3/14/14) P ( 5/23/74) P ( 8/16/14) NO DATA (11/ 6/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/14/74 5/23/14 8/16/74 11/ 6/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
NITZSCHIA 2688 CARTERIA 1682 OSCILLATORIA 35321 OSCILLATORIA 1586
MELOSIRA 1613 NITZSCHIA 906 NITZSCHIA 5815 OACTYLOCOCCOPSIS 453
CHROOMONAS 1559 OSCILLATOPIA 584 MERISMOPEDIA 4615 MERISMOPEDIA 198
MERISMOP EDIA 1236 MERISMOPEQIA 409 ANABAENOPSIS 3098 LYNGBYA 170
ANACYSTIS(MICR OCYSTI5) 753 MELOSIRA 380 LYNGBYA 2445 STEPHANODISCUS 170
OTHER 5428 OTHER 2015 OTHER 15441 OTHER 1219 —i
TOTAL 13277 TOTAL 11916 IOTAL 66741 TOTAL 3796
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOUNCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHOSPHORUS 3760. ******.*** 5. 21250. 25015.
NITHOGEN 11255. 210. 426675. 438140.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YW) RETENTION (G/SQ M/YR)
PHOSPHORUS 16835. 33. 0.54
NITROGEN 21640U. 37. 9.4
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) (M6/L) (MG/L) (KG/SO KM/YR) (KG/SQ KM/YR)
MIDDLE YEGUA CREEK 2.820 1131.8 0.081 1.283 1. 101.
EAST YEGUA CREEK 1.500 714.8 0.066 1.336 4. 88.
NAILS CREEK 0.990 181.6 0.132 1.489 14. 230.
CEDAR CREEK 0.710 123.3 0.053 1.260 10. 227.
Vl. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/L)
FOURMILE CREEK 0.031 1.016

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CO IIPENnIUM OF NATIONAL EUTROPHICATION SURVEY LAK€S IN TEXAS
NAME — LAKE STAMFORD (FUTROPHIC )
COUNTY - , IA5KELL
STORET NO. — 4830 WORKING PAPER NO. 660. NTIS ACCESSION NO. P8—268 330/AS
I. MORPHOMETRy
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN OEPTN TOTAL INFLOW RETENTION TIME
(SO KM) (Su 04) (METERS) (CMS) (YEARS)
IMPOUNDMENT 93?.40 19.00 3.5 1.511 2.5
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEUTAN MED TAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALIN1TY(M6/L) CONOUCT1VITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
184. 1104 . 0.4 0.073 0.012 0.060 0.920
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CMLOPOPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
( ;i4/L) (MG/I——DRY WI)
18. 5 ( .3/ 7/74) N ( 5/15/74) N 1 $/ 5/74) N (10/28/74) N
SUMMARY UF PHYTOPLANKTOrSJ DATA
3/ 7/14 5/15/74 8/ 5/74 10/28/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
ANKISTWODFSMtJS 1327 CENTRIC DIATOM 2563 OSCILLATORIA 2239 DIPLONEIS 4888
CRUCIGENIA 601 ANACYSTIS(MICROCYSTIS) 1923 LYNGBYA 2183 OSCILLATORIA 2732
LUNATE CElLS 526 OIPLONETS 838 RAPHIDIOPSIS 1567 DACTYLOCOCCOPSIS 1629
DACTYLOCO CCOPSIS 351 CHROOMOMAS 739 ANABAENOPSIS 1119 C USCINODISCUS 1534
CHROOMONAS 200 ANKISTRODESMUS .345 CRYPTOMONAS 1001 CHROOMONAS 1246
OTHER 617 OTHER 1085 OTHER 2910 OTHER 1869
TOTAL 3682 TOTAL 7493 TOTAL 11025 TOTAL 13898
IV. NuTRIENT LOADING CHARACTERISTICS(LAIVE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KI,/YP) SEPTIC TANKS (KG/YR) (KG/YR) (KG/YR)
PHO SPHOR U s 9225. *.ot.Qo*. 50. 18150. 2742 .
I’ IITPOGFN E Rb9S. 1810. 94175. 124680.
H. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 2310. 92. 1.44
NITROGEN 34515. 72. 6.6
V. NON—POINT—SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
( (M5) (50 KM) (MG/L) (MG/L) (KG/SO KM/YR) (KG/SO KM/YR)
PAINT CRFFK 0.960 ‘ ,69.8 0.693 2.269 28. 94.
I4UFFALO CRFEK 0.060 44.5 0.108 1.1 59 5. 50.
VI. MEAN NUTPIFNT CONCENTRATIONS IN IINGAGEL) STREAMS
STPEAM NAMF MEAN TOTAL P MEAN TOTAL N
(NC,/L) (MG/I)
MULE CWEEK * 1.542 7.200
* “FLU4 POINT SOURCE.

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — STILLiIoUSE HOLLOW RESEPV IMESOTROPHIC)
CUUNTY — SELL OIR
SIORET NO, — 4841 WORKING PAPER NO. 661, NTIS ACCESSION NO. P8—269 243/AB
I. MORPHOP.IETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO 1(M) (50 1(M) (METERS) (CMS) (YEARS)
IMPOUNDMENT 3413.60 26.02 11.3 8.260 1.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCI4I DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDuCTIVITYWMHOS (METERS) TOTAL P(HG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(M6/L)
162. 549. 2.4 0.018 0.010 0.160 0.415
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (HG/L——DRY WT)
3.9 0.1 C 3/13/74) P C 5/21/74) P ( 8/14/74) NO DATA (11/ 4/74) P
SUMMARY OF PHYTOPLANKTON DATA
3/13/74 5/21/74 8/14/74 11/ 4/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 940 CHROOMONAS 386 CYCLOTELLA 123 CHROOMONAS 394
ELAKATOTHRIX 34 COELASTRUM 191 CRYPTOMONAS 93 CYCLOTELLA 219
STEPHANODISCUS 34 CRYPTOMONAS 72 OOCYSTIS 77 CRYPTOHONAS 175
NITZSCHIA 34 APHANOCAPSA 62 CRUCIGENIA 62 ANKISTRODESMUS 66
GYMNODINIUM 34 PEDIASTRUM 62 COSMARIUM 46 PEDIASTRUM 44
OTHER 32 OTHER 67 OTHER 201 OTHER 110
TOTAL 1108 TOTAL 846 TOTAL 602 TOTAL 1008
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YP) SEPTIC TANKS (KG/YR) ( 1 (6/YR) (KG/YR)
PHOSPHORUS 63S0. 3235. 9585.
NITROGEN 19U45. 256140. 275185.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (6/SQ M/YR)
PHOSPHORUS 3520. 63. 0.37
NITRO GFN l4339 . 48. 10.6
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 1 (M) (MO/L) (MG/U (KG/SQ KM/YR) (KG/SQ KM/YR)
LAMPASAS RIVER 7.510 3105.4 0.022 0.539 0.8 69.
VI. MEAN NUTRIENT COMCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(Mci/I) (M(,/I)
TRiMMER CREEK 0.017 0.638
LUCY CREEK 0.023 0.543

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COMPENDIUM OF NATIONAL EUTROPHICATION SUI VEY LAKEb IN TEXAS
— LAKE TAWAKONI (EUTROP I IIC)
— HUNT. RAINS. VAN ZANDT
NO. — 4632 WORKING PAPER NO. 662, NTIS ACCESSION NO. P8—269 259/AB
I. M ORPHOMfTRY
LAKE TYPE DRAINAGE AREA
(SO 1 (M)
IMPOUNDMENT 1957.90
SURFACE AREA
(SO MM)
148.52
MEAN DEPTH
(METERS)
1.7
TOTAL INFLOW
(CMS)
11.260
RETENTION TIME
(YEARS)
3.2
III. RIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD
(US/I) (MG/I——DRY WT)
18.2 0*0000*00*
TOT AL
9363 TOTAL
4948 TOTAL
15652 TOTAL
1730
PHOSPHORUS
NITROGEN
S. OUTPUT
PHOSPHORUS
NI TROGEI4
POIN 1 SOURCE
MUNICIPAL (KG/YR)
32115.
02485.
OUTLET(S)
(KG/YR)
16350.
274870.
POINT SOURCE
INDUSTRIAL (KG/YR)
000 00000 00
*04*0.0*0
PERCENT
WE TENT ION
As.
11.
POINT SOURCE
SEPTIC TANKS (KG/YR)
0 0*0*0 0*0*
0*0*00*0*
NON-POINT SOURCE
(KG/YRI
102530.
876630.
TOTAL LOADING
(KG/YR)
13470b.
939115.
I)PAINAGE AREA
(SQ KM)
505.0
349.0
203.5
MEAN TOTAL P
(MG/I)
0.172
I • To?
0.196
MEAN TOTAL N
(MG/L)
1.416
3 • 762
1.820
TOTAL P EXPORT
(KG/SQ KM/YR)
23.
1 15.
48.
TOTAL N EXPORT
(KG/SQ KM/YR)
210.
995.
5 15.
NA ME
COUNTY
STORET
II. PHYSICAL AND CHEMICAL CHARACTERIST!CS
MEDIAN
MEDIAN MEAN SECCHI
DISC
MEDIAN
MEDIAN
MEDIAN
MEDIAN
ALKALINITY(MG/L)
CONDUCTIVITY WMHOS)
(METERS)
TOTAL P(MG/L)
ORTHD P(MG/L)
INORG N(MG/L)
TOTAL NIMG/L)
79.
166.
0.8
0.046
0.013
0.100
0.630
SUMMARY OF PHYTOPLANKTON DATA
3/ 9/74 5/11/74 8/12/14
LIMITING NUTRIENT AT SAMPLING TIME
3/ 9/14) N ( 5/17/74) P AND N I 8/12/74) NO DATA (11/ 1/74) N
11/ 1/74
GENERA
COUNT
GENERA
COUNT
GENERA
COUNT
GENERA
COUNT
MELOSIRA
5861
STEPHANODISCUS
956
OSCILLATORIA
2750
OSCILLATORIA
359
STEPHANODI5CUS
624
MELOSIRA
065
NITZSCHIA
2750
PENNATE DIATOMS
326
NITZSCHIA
587
KIRCHNERIELLA
541
MERISMOPEDIA
1550
DACTYLOCOCCOPSIS
196
CRYPTOMDNA5
55!
SCENEDESMUS
540
LYNGBYA
1250
MERISMDPEDIA
196
CHROOMONAS
441
CHROOMONAS
499
MELDSIRA
1200
MELOSIRA
163
OTHER
1299
OTHER
1741
OTHER
6152
OTHER
490
I v. NUTRIENT LOADING CHAWACTERISTICS(LAKE)
A. INPUT
c c
V. NON—POINT-SOURCE NUTRIENT EXPORT
STREAM NAME MEAN FLOW
(CMS)
CADOD CREEK 1.1 90
CUWLEECH FDwK. SASINE R. 2.920
SOUTH FOp1K , SABII4E RIVER 1.880
LAKE SURFACE AREA LOADING RATE
(S/SQ M/YR)
0.91
6.3

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — LAtcE TE*OMA FUT IOPHIC)
COUNTY — COOKE, GRAYSON TX;BRYAN, JOHNSON, LOVE. MARSHALL OK
STORET NO. — 4834 WORKING PAPER NO. 663, NTIS ACCESSION NO. P8—271 474/AB
I. MORPHOM TRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO KM) (SO KM) (METERS) (CMS) (DAYS)
IM UUNL)MENT 87500.50 360.18 5.7 147.693 173.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALI(-ALINITY(MG/L CONDUCTIVITY(UMMOS (METE-RS4 TOTAL P(MG/L) ORTHO P(MG/L INORG N(MG/L) TOTAL N(MG/L)
128. 1342. 1.2 0.042 0.018 0.160 0.600
III. HIOLOGIC L CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (t’5/L——DRY WI)
12.5 •aoeoo**. I 3/ 9/74) P AND N C 5/17/74) N ( 8/ 9/74) NO DATA (10/31/74) P AND N
SUMMARY OF PHYTOPLANKTON DATA
3/ 9/74 5/17/74 8/ 9/74 10/31/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CHROOMONAS 2270 DIPLONEIS 324 OSCILLATORIA 3886 OSCIL.LATQRIA 2662
FLAGELLATES 900 CRYPTOMONAS 265 RAPHIDIOPSIS 1943 DACTYLOCOCCOPSIS 355
CENTRIC DIATOM 643 CENTRIC DIATOM 236 NITZSCMIA 1229 NITZSCHIA 310
ANKISTRODE SMU5 514 SCENEDESMUS 177 LYNGBYA 991 CYCLOTELLA 266
CRYPTOMONAS 257 COELASTRUM 118 CENTRIC DIATOM 397 CHLAMYOOMONAS 222
OTHER 214 OTHER 194 OTHER 1349 OTHER 710
TOTAL 4798 TOTAL 1914 TOTAL 9795 TOTAL 4525
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT 5OU CE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL CKG/YR) INDUSTRIAL ING/YR) SEPTIC TANKS (KG/YR) CKG/YR) (KG/YR)
PHOSPHORUS 38495. 225. 1439695. 1478415.
NITROGEN 112245. 8445. 10862425. 10983115.
. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
I HOSPHORU5 591900. ( 0. 4.10
NITROGEN 6143655. 44. 30.5
V. NON—POiNT—SOURCE NUT (IENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SO KM) (MG/U (MG/I) (KG/SQ KM/YR) (KG/SO KM/YR)
RED RIVER 80.980 64351.1 0.406 2.435 16. 96.
HICKORY CREEK 1.550 318.6 0.352 2.291 26. 267.
WASHITA RIVER 45.140 18901.0 0.273 2.563 20. 191.
PENNINGION CREEK 1.230 245.3 0.019 0.849 3. 134.
SANDY CREEK 0.340 57.0 0.045 0.997 9. 188.
MINERAL CREEK 0.373 64.7 0.205 1.756 6. 1b9.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/U (MG/U
MILL CREEK 0.037 0.705
ARUSHY CREFK 0.041 0.986
OIL CREEK 0.040 1.714
* ESTIMATED

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COMPENDIUM OF NATIONAL EUTROPHICATIUN SU’iVEY LAKES IN TEXAS
NAME — LAKE Tp)AVIS (MESOTROPHIC)
COUNTY - (JUR’IET. TRAVIS
STORET NO. - 4835 WORKING PAPER NO. 664, NTIS ACCESSION NO. PH—269 481/AR
I. MoRPHOM TRY
LArcE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL iNFLOW RETENTION TIME
(S Q ( cM) (SO CM) (METE RS) (CMS) (YEARS)
IMPOIJNDMENI 98156.60 16.61 18.9 48.430 1.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCMI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONOUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
149. 451. 2. 8 0.018 0.001 0.250 0.580
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WT)
5.6 0.1 — 0.9 ( 2) ( 3/15/74) P ( 5/22/74) P ( 8/20/74) NO DATA (11/ 6/74) P AND N
SUMMARY OF PHYTOPLANKTON DATA
3/14/74 5/22/14 8/20/14 11/ 6/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
CRYPTOMONAS 487 COELASTRUM 518 SYNEORA 654 CYCLOTELLA 103
CHROOMONAS 244 FRAGILAPIA 518 CYANOPHYTON FILAMENTS 256 CHLAMYDOMONAS 69
CHLAMYDOMONAS 41 CHROOMONAS 330 MELOSIRA 171 CRYPTOMONAS 69
OOCYSTIS 41 CRYPTOMONAS 188 TETRAEDRON 57 SCENEDESMUS 68
SCENEDESMUS 41 TETPAEORON 141 COCCOID CHLOROPHYTA CELL 57 OOCYSTIS 34
OTHER 3 OTHER 236 OTHER 84 OTHER 70
TOTAL R93 TOTAL 1931 TOTAL 1279 TOTAL 413
Iv. NUTRIENT LOADING CHARACTERISTICS(LAKF1
A. ENPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/YR) (KG/YR) ( KO/YR)
PHOSPHORUS 2325. 15. 47060. 49400.
NITROGEN 6970. 640. 1925525. 1933135.
S. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE A. EA LOADING RATE
(KG/YR) RETENTION (G/SO M/YR)
PHOSPHORUS 27165. 45. 0.64
NITROGEN 1121110. 42. 25.2
V. NUN—POINT-SOURCE NUTRIENI EAPORT
STREAM NAME MEAN FLOw flPAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (S o ‘ CM) (MG/ v (MG/L) (KG/SQ KM/YR) (KG/Su KM/YR)
COLORADO RIVER 36.140 94081.7 0.035 1.253 0.4 15.
COW CREEK 0.140 110.6 0.016 1.207 1. 127.
PEDERNALES RIVEI 1 7.460 3071.7 0.025 1.223 1. 92.
V-I. MEAN NUTRIENT CONCENTRATIONS IN UNGAGEIJ STREAMS
STREAM NAME MEAN IOTAL P MEAN TOTAL N
(MG/L) (MG/L)
BEE RIVEs 0.011 0.637
ALLIGATOR CREEK 0.020 1.097
OOU8LE HORN CREEK 0.019 0.698
FLAT CREEK 0.010 0. 598

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — TRINIDAD LAKE (EUTWOPHIC)
COUNTY — HENDERSON
STORET NO. — 4836 WORKING PAPER NO. 6b5. NTIS ACCESSION NO. P8—268 376/-AS
I. MORPHOM ETR Y
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION -TIME
(SO KM) (SO KM) (METERS) (CMS) (YEARS)
IMPOUNDMENT •Q * * * **** 2.Q9 3.1 tenet
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITYUJMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG N(MG/L) TOTAL N(MG/L)
202. 1037. 0.5 0.389 0.240 0.110 1.890
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRY WU
24.3 4.4 — 6.0 ( 2) ( 3/11/74) N ( 5/17/74) N ( 8/12/14) NO DATA (11/ 1/14) N
SUMMARY UF PHYTOPLANKTON DATA
3/11/74 5/11/74 8/12/74 11/ 1/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
SCENEDESMUS 13306 DACTYLOCOCCOPSIS 3752 MERISMOPEDIA 7025 ANKISTRODESNUS 6583
COSMARIIJM 11416 GOLENKINIA 2047 LYNGBYA 6818 SCENEDESMUS 5596
CENTRIC DIATOM 10926 SCENEDESMUS 1933 NITZSCHIA 4821 NITZSCHIA 3950
GOLENKINIA 7214 CYCLOTELLA 1402 SCENEDESMUS 3720 MERISMOPEDIA 3456
NITZSCHIA 3082 MERISMOPEPIA 1213 CYCLOTELLA 3444 KIRCHNERIELLA 3121
OTHER 114)5 OTHER 5d29 OTHER 14395 OTHER 12014 )—‘
Ce
TDTAL 57359 TOTAL 15576 TOTAL 40223 TOTAL 34726 ‘
IV. NUTRIENT LOADING CHARACTERISTICSLAKE
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 eeeeee.eee ****eeee*e ee****.**e e.eeete*e. etetotete
NITROGEN n .e . c . . . . teeeoee.ee tenet.... e00000e000 et et etette
A. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/Y ?) RETENTION (G/SO M/YR)
PHOSPHORUS eeeeeee.ee tote etne*e tee
NITROGEN tt**tt**tt ettee
°° LAKE SAMPLING ONLY • Q

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — TWIN RUTTES REStNVO [ R (FLJTROPHICI
COUNTY - TOM GREEN
STORET NO. — 4A3? WOWKINC, PaPER NO. 66b. NTIS ACCESSION MU. P —26R 334/AR
I. MORPHOMETPY
LAKE TYr E DRATNAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SQ KM) (SU MM) TERS (CMS) (YEARS)
IMPOUNDMENT 6594.10 36.50 6.3 1.24 5 14.9
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCriI DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALI (ALINITY(MG/L) CON’)UCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P(MG/L) INORG NIMG/LI TOTAL N(MG/L)
lAO. 575. 1.1 0.029 0.009 0.250 0.740
III. RIOLOGICAL CHARACTLRISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(LPf,/L) (MG/L——DRY WT)
0.1 ( 3/ 4/743 ‘ ( 5/15/74) p 1 8/ 5/74) NO DATA (10/29/74) N
SUMMARY OF PHYTOPLANKTON DATA
3/ 4/74 5/15/74 8/ 5/74 10/29/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
SCENEDESMUS 1651) SCENEL)ESMUS 1594 RAPHIDIOPSIS 13554 CRYPTOMONAS 877
SYNEDRA 1317 CHROOMONAS 1593 FLAGELLATES 1055 CHROOCOCCUS 821
ANKISTRODFSMUS 809 ANMISTIIUDESMUS 474 SYNEDRA 586 CENTRIC DIATOM 396
OUCYSTIS 324 RAP iIUioPSIS 271 MERISMOPEDIA 469 ANKISTRODESMUS 283
CHRYSOPHYTAN CELLS 194 PEDTASIRLJM 237 CARTERIA 430 DACTYLOCOCCOPSIS 255
OTHER 1403 )TMEK 848 OTHER 2147 OTHER 481
TOTAL 5697 TOTAL 5017 TOTAL 18241 TOTAL 3113
IV. • 1UTRIENT LOADING CMARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POiNT SOURCE NON—POINT SOURCE TOTAL LOADiNG
MUNICIPAL IKG/YP) INDUSTRIAL (KG/YR) SEPTIC TANKS (KG/VP) (KG/YR) (IcG/YR)
PHOSPHOR uS 1550. 1550.
NITROGEN QQ*O****OO O*a*OO***O 111200. 111200.
H. OUTPUT
OUTL IJ(S) PE CFNT LAKE SURFACE AREA LOADING RATE
(Icb/YR) PFTFNTION (G/SQ H/VP)
PMOSPr4OPeJS 60. 0.04
NITI 1OGFN 16470. MS. 3.0
V. NON—POINT-SOURCE NUTRIENT E POi T
STRFAM NAMF MEAN FLOW UPAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(f 14 5) (50 1(M) (Mb/U (Mb/LI (KG/SQ KM/YR) (Xu,/SU KM/YR)
MIDDLE CONCHO RIvER 0.210 3576.8 0.025 2.078 * 3•
SOUTH C’)’ CHU RIVEM 0.420 922.0 0.0?1 2.400 0.3 17.
,PRIN(, CPFFK fl.3 0 1025.6 0. 1126 2.866 0.2 29.
VI. MEAN NUTRIFNT CONC IIIPAT10NS TN IJNGAGED STREAMS
STREAM NAMF MEAN TOTAL P MFAN TOTAL N
(MCI/LI (Mb/L)
DOVE CREF 0.016 3.357
LESS TH N (p.1.

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COMPENDI-tJM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — WHITE RIVER RESERVOIR (MESO—EUTROPHIC)
COUNTY — CROSeY
STOREr NO. — 4838 ORK1NG PAPER NO. 661, NTIS ACCESSION NO. P8—268 418/AR
I. MORPHOMETRY
LAI
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COMPENQIUS OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — WHITNEY RESERVOIR (EUTROPHIC )
COUNTY — MOSQUE. HILL
STORET NO. — 4839 WORKING PAPER NO. 668. NTIS ACCESSION NO. P9—268 284/Ab
I. MORPHOMETRY
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTiON TIME
(SO 1 (M) (SQ 1 (M) (METERS) (CMS) (YEARS)
IMPOUNDMENT 61780.20 95.35 8.1 48.7Th 0.8
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCHI DISC MEUIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG/L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTHO P 1MG/LI INORG N(MG/L) TOTAL N(MG/L)
125. 1920. 1.8 0 .028 0.008 0.120 0 .620
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MFAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(iJG/L) (MG/L——DRY VT)
6.9 ( 3/ 8/74) P I 5/16/74) P ( 8/13/14) NO OATA (11/ 1/74) P AND N
SUMMARY OF PHYTOPLANKTON DATA
3/ 8/74 5/16/74 8/13/74 11/ 1/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
SCENEDESMUS 804 SCENEDESMUS 382 OSCILLATORIA 2265 DACTYLOCOCCOPSIS 1261
OOCYSTIS 686 TETRAEDRON 127 LYNGBYA 1762 OOCYSTIS 850
CHROOMONAS 356 COELASTRUM 32 ANABAENOPSIS 1611 OSCILLATORIA 521
CRUCIGENIA 237 USCILLATDRIA 32 DIPLONEIS 1001 MERISMOPEDIA 274
ANKISTRODESMUS 185 EUGLENA 32 PENNATE DIATOMS 70S TETRAEORON 274
OTHER 383 OTHER 80 OTHER 2266 OTHER 576 —
C t
TOTAL 2651 TOTAL 685 TOTAL 9616 TOTAL 3756 ..j
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YIfl INDUSTRIAL ( 1 (6/YR) SEPTIC TANKS (KO/YR) (KG/YR) (KG/YR)
PHOSPHORUS 11170. 250. 106460. 117880.
NITROGEN 33’.9 5. *0 *00 *4*0 9425. 1624540. 1667460.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING HAlE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 28815. 16. 1.24
NITROGEN 1395635. 16. 17.5
V. NON—POINT—SOURCE NUTR1ENT EXPORT
STREAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM (MG/LI (MG/I. .) (KG/SQ K’I/YR) (KG/SQ KM/YR)
BRAZOS RIVER 42.170 65824.8 0.095 0.938 1. 19.
CEDRON CREEK 0.470 108.8 0.017 0.650 2. - 95.
STEEL CREEK 0.920 233.1 0.015 0.713 2. 100.
NOLAN RIVER 2.870 909.1 0.455 1.958 40. 185.
vI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/L) (MG/LI
MESQUITE CREEK 0.020 0.115
CAMP CREEK 0.022 0.767
HALEY BRANCH 0.169 1.213

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COMPENDIUM OF NATIONAL EUTROPHICATION SURVEY LAKES IN TEXAS
NAME — WRIGHT PATMAN (EUTROPHIC)
COUNTY — BOwIE . CASS
STORET NO. — 4833 WORKING PAPER NO. 669. NTIS ACCESSION -NO. 08—268 307/AG
I. MORPHOMETRy
LAKE TYPE DRAINAGE AREA SURFACE AREA MEAN DEPTH TOTAL INFLOW RETENTION TIME
(SO K14) (SQ KM) (METERS) (CMS) (DAYS)
IMPOUNDMENT 8917.40 126.13 3.0 75.517 57.0
II. PHYSICAL AND CHEMICAL CHARACTERISTICS
MEDIAN MEDIAN MEAN SECCH1 DISC MEDIAN MEDIAN MEDIAN MEDIAN
ALKALINITY(MG,L) CONDUCTIVITY(UMHOS) (METERS) TOTAL P(MG/L) ORTMO P(MG/t_) INORG N(MG/L) TOTAL N(MG/L)
49. 203. 0.5 0.106 0.030 0.120 0.660
III. BIOLOGICAL CHARACTERISTICS (LAKE)
MEAN CHLOROPHYLL A ALGAL ASSAY CONTROL YIELD LIMITING NUTRIENT AT SAMPLING TIME
(UG/L) (MG/L——DRy WT)
19.1 1.3 — 5.5 ( 2) ( 3/22/74) N 1 5/31/74) N ( 8/23/74) NO DATA (11/ 8/14) N
SUMMARY OF PHYTOPLANKTON DATA
3/22/74 5/31/74 8/23/74 11/ 8/74
GENERA COUNT GENERA COUNT GENERA COUNT GENERA COUNT
MELOSIRA 5495 CENTRIC DIATOM 4824 MELOSIRA 2195 MELOSIRA 1211
CENTR1C DIATOM 1672 MELOSIRA 1495 OSCILLATORIA 2056 CHROOMONAS 413
NITZSCHIA 1593 PENNATE DIATOMS 1158 NITZSCHIA 1529 DACTYLOCOCCOPSIS 330
CHROOMONAS 1274 CHROOMONAS 579 LYNGBYA 1002 OSCILLATORIA 248
DACTYLOCOCCO PSIS 631 MERISMOPEDIA 338 DACTYLOCOCCDPSIS 738 NITZSCMIA 221
OTHER 1552 OTHER 1846 OTHER 3586 OTHER 1294 ...s
TOTAL 12223 TOTAL 10240 TOTAL 11706 TOTAL 3717 ©C
IV. NUTRIENT LOADING CHARACTERISTICS(LAKE)
A. INPUT
POINT SOURCE POINT SOURCE POINT SOURCE NON—POINT SOURCE TOTAL LOADING
MUNICIPAL (KG/YR) IND)JSTRIAL (KG/YR) SEPTIC TANKS (KG/ f l) (K6/YR) (KG/YR)
PHOSPHORUS 35770. 222725. 258495.
NITROGEN 105995. 2212490. 2318485.
B. OUTPUT
OUTLET(S) PERCENT LAKE SURFACE AREA LOADING RATE
(KG/YR) RETENTION (G/SQ M/YR)
PHOSPHORUS 2Q4435. LOSS 2.05
NITROGEN 2247780. 3. 18.4
V. NON—POINT—SOURCE NUTRIENT EXPORT
S 1REAM NAME MEAN FLOW DRAINAGE AREA MEAN TOTAL P MEAN TOTAL N TOTAL P EXPORT TOTAL N EXPORT
(CMS) (SQ KM) (MG/LI (MG/L) (KG/SQ KM/YR) (KG/SQ KM/YR)
ROCK CREEK 0.200 21.2 0.063 0.616 15. 159.
ELLIOT CREEK 0.160 21.5 0.042 0.664 10. 156.
CANEY CREEK 0.140 18.4 0.053 0.713 12. 165.
BIG CREEK 0.300 40.4 0.365 1.126 6. 25.
RICE CREEK 0.340 46.6 0.088 0.848 20. 196.
WHITE OAK CREEK 13.340 1712.0 0.114 1.016 20. 227.
SULPHUR RIVER 29.960 3535.3 0.136 1.046 32. 268.
CUTNAND CREEK 5.160 600.9 0.10? 1.031 29. 279.
VI. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
STREAM NAME MEAN TOTAL P MEAN TOTAL N
(MG/LI (MG/LI
EAST FORK, ELLIOT CREEK 0.]72 2.247

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ANDEiSON CREEK 0.160 1.225
‘IORSE CREEK 0.109 0. i20

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