U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKE ROBINSON
AND DARLINGTON COUNTIES
SOUTH CAROLINA
EPA REGION IV
WORKING PAPER No,
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
699-440
-------
REPORT
ON
LAKE ROBINSON
CHESTERFIELD AND DARLINGTON COUNTIES
SOUTH CAROLINA
EPA REGION IV
WORKING PAPER No, 437
WITH THE COOPERATION OF THE
SOUTH CAROLINA DEPARTMENT OF HEALTH AND
ENVIRONMENTAL CONTROL
AND THE
SOUTH CAROLINA NATIONAL GUARD
JUNE, 1975
-------
CONTENTS
Page
Foreword ii
List of South Carolina Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 4
III. Lake Water Quality Summary 5
IV. Nutrient Loadings 9
V. Literature Reviewed 14
VI. Appendices 15
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FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to freshwater lakes and
reservoirs.
OBJECTIVES
The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations,
and impact on selected freshwater lakes as a basis for formulating
comprehensive and coordinated national, regional, and state management
practices relating to point-source discharge reduction and non-point
source pollution abatement in lake watersheds.
ANALYTIC APPROACH
The mathematical and statistical procedures selected for the
Survey's eutrophication analysis are based on related concepts that:
a. A generalized representation or model relating
sources, concentrations, and impacts can be constructed.
b. By applying measurements of relevant parameters
associated with lake degradation, the generalized model
can be transformed into an operational representation of
a lake, its drainage basin, and related nutrients.
c. With such a transformation, an assessment of the
potential for eutrophication control can be made.
LAKE ANALYSIS
In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented. The report is formatted to provide state environmental
agencies with specific information for basin planning [§303(e)], water
quality criteria/standards review [§303(c)], clean lakes [§314(a,b)],
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
-------
m
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
freshwater lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
ACKNOWLEDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the South Carolina Department
of Health and Environmental Control for professional involvement,
to the South Carolina National Guard for conducting the tributary
sampling phase of the Survey, and to those South Carolina waste-
water treatment plant operators who voluntarily provided effluent
samples and flow data.
The staff of the South Carolina Bureau of Wastewater and
Stream Quality Control provided invaluable lake documentation
and counsel during the Survey, reviewed the preliminary reports,
and provided critiques most useful in the preparation of this
Working Paper series.
Major General Robert L. McCrady, the Adjutant General of South
Carolina, and Project Officer Lt. Colonel John P. DuPre (Retired),
who directed the volunteer efforts of the South Carolina National
Guardsmen, are also gratefully acknowledged for their assistance
to the Survey.
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IV
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF SOUTH CAROLINA
NAME
Clark Hill
Fishing Creek
Greenwood
Hartwell
Keowee
Marion
Moultrie
Murray
Robinson
Saluda
Secession
Wateree
William C. Bowen
Wylie
COUNTY
Abbeville, McCor-
mick, SC; Colum-
bia, Elbert, Lin-
coln, McDuffie,
Wilks, GA
Chester, Lancaster
Greenwood, Laurens,
Newberry
Anderson, Oconee,
Pickens, SC;
Franklin, Hart,
Stephens, GA
Oconee, Pickens
Berkeley, Calhoun,
Claredon, Orange-
burg, Sumter
Berkeley
Lexington, Newberry,
Richland, Saluda
Chesterfield, Dar-
lington
Greenville, Pickens
Abbeville, Anderson
Fairfield, Kershaw,
Lancaster
Spartanburg
York, SC; Gaston,
Mecklenburg, NC
-------
tlet North Hartsville
esfwood La,
LAKE ROBINSON
® Tributary Sampling Site
X Lake Sampling Site
f Sewage Treatment Facility
•^3 Drainage Area Boundary
o 5 ipKm.
5 Hi.
Scale
80*20
-------
LAKE ROBINSON
STORE! NO. 4508
I. CONCLUSIONS
A. Trophic Condition:
Although the overall Survey data indicate Lake Robinson is
mesotrophic, the rather low mean Secchi disc transparencies
(0.9 to 1.2 m), the September mean chlorophyll £ concentration
of 16.6 yg/1 (range of 11.9 to 20.5 yg/1), the phytoplankton
associations, and the numbers and variety of macrophytes present
are more indicative of a eutrophic condition.
Lake Robinson ranked third in trophic quality when the 13
South Carolina lakes sampled in 1973 were compared using an
index of six parameters*. Two of the lakes had less median total
and median dissolved orthophosphorus, four had less and one had
the same median inorganic nitrogen, nine had less mean chlorophyll
a_, and four had greater mean Secchi disc transparency. Marked
depression of dissolved oxygen with depth occurred at station 1
in July.
Survey limnologists noted considerable floating vegetation in
the littoral zones near stations 2 and 3 in July and areas of
floating and emergent macrophytes and some algal scums in the
shoreline shallows near station 3 in September.
Lake Robinson is used as a source of cooling water for two
* See Appendix A.
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2
thermal electric-generating plants operated by the Carolina Power
and Light Company, and at times a greater volume of water is
utilized in the once-through cooling circuits of the plants than
is contributed by the tributaries of the lake (Foley, 1976).
B. Rate-Limiting Nutrient:
The algal assay results are not representative of conditions
in the lake at the time the sample was taken because of nutrient
changes in the sample during shipment.
The lake data indicate phosphorus limitation in March and July
but probably nitrogen limitation in September.
C. Nutrient Controllability:
1. Point sources—During the sampling year, the phosphorus
contribution of the Pageland wastewater treatment facility amounted
to 28% of the total phosphorus input to Lake Robinson.
The phosphorus loading of 0.38 g/m2 measured during the sampling
year is less than that proposed by Vollenweider (Vollenweider and
Dillon, 1974) as an oligotrophic loading (see page 13). However,
the existing trophic condition of the lake indicates that either
the loading is greater than indicated because of unaccounted-for
inputs, or phosphorus inputs have been reduced recently.
As far as is known, there has not been any significant reduction
in the phosphorus load from Pageland (Foley, op. cit.), and further
study is needed to evaluate other possible sources (e.g., the
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3
possible use of phosphorus compounds to control corrosion and/or
fouling in the cooling circuits of the power plants).
2. Non-point sources—The non-point phosphorus contributions
of the gaged tributaries accounted for 54.6% of the total load to
the lake during the sampling year, and the ungaged minor tribu-
taries and immediate drainage added an estimated 12.1%.
Collectively, the phosphorus export rates of the Lake Robinson
tributaries were the lowest measured in South Carolina during the
Survey sampling year (see page 13). Most of the runoff in the
drainage is from the Carolina sand hills, and this probably
accounts for the low export rates.
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4
II. LAKE AND DRAINAGE'BASIN CHARACTERISTICS1'
A. Lake Morphometry :
1. Surface area: 8.68 kilometers2.
2. Mean depth: 4.3 meters.
3. Maximum depth: >9.4 meters.
4. Volume: 37.005 x 106 m3.
5. Mean hydraulic retention time: 66 days.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Black Creek 279.7 4.800
Unnamed Creek B-l 8.6 0.090
Lower Alligator Creek 17.5 0.180
Little Beaverdam Creek 21.8 0.230
Unnamed Creek E-l 3.2 0.033
Big Beaverdam Creek 25.7 0.260
Pond Hollow Branch 13.6 0.140
Minor tributaries &
immediate drainage - 68.9 0.800
Totals , 439.0 6.533
\
2. Outlet - \
Black Creek 448.1** 6.533**
C. Precipitation***: \.
1. Year of sampling: 131.9 centimeters.
2. Mean annual: 112.3 centimeters.
t Table of metric conversions—Appendix B.
tt At maximum pool; Martin and Hanson, 1966.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake; outflow adjusted to equal sum of inflows.
*** See Working Paper No. 175.
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5
III. LAKE WATER QUALITY SUMMARY
•
Lake Robinson was sampled three times during the open-water
season of 1973 by means of a pontoon-equipped Huey helicopter. Each
time, samples for physical and chemical parameters were collected
from a number of depths at three stations on the lake (see map,
page v). During each visit, a single depth-integrated (4.6 m or
near bottom to surface) sample was composited from the stations
for phytoplankton identification and enumeration; and during the
last visit, a single 18.9-liter depth-integrated sample was composited
for algal assays. Also each time, a depth-integrated sample was
collected from each of the stations for chlorophyll a_ analysis.
The maximum depths sampled were 9.4 meters at station 1, 7.0 meters
at station 2, and 3.0 meters at station 3.
The sampling results are presented in full in Appendix D and
are summarized in the following table.
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A. SUMMARY OF PHYSICAL AND
CHEMICAL CHARACTEKlSriCS FOR LAKE ROBINSON
STORE! CODE 4508
PARAMETER
TEMP
OISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02»N03 (MG/L>
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N
CHLR^YL A IUG/D
SECCHI (METERS)
1ST
RANGE
12.9 -
8.4 -
50. -
5.9 -
10. -
0.009 - 0
0.002 - 0
0.580 - 0
0.070 - 0
0.300 - 0
0.650 - 0
0.880 - 1
1.4 -
1.2 -
SAMPLING (
3
17.6
8.6
50.
6.6
10.
.020
.006
.750
.100
.500
.850
.210
9.4
1.2
SITES
MEAN
16.5
• 8.5
50.
6.1
10.
0.013
O.OOt
0.668
0.079
0.3B2
0.747
1.050
6.6
I.?
3/22/73)
MEDIAN
17.2
8.5
50.
6.1
10.
'0.012
0.004
0.670
0.080
0.400
0.740
1.070
9.0
1.2
2ND
RANGE
26.4 -
1.0 -
• 50. -
5.3 -
10. -
0.013 - 0
0.005 - 0
0.080 - 0
0.080 - 0
0.300 - 1
0.160 - 0
0.380 - 1
1.5 -
0.9 -
SAMPLING ( 7/
3
34.0
6.6
50.
5.6
10.
.026
.020
.140
.310
.000
.450
.110
3.5
0.9
SITES
MEAN
30.6
4.8
50.
5.4
10.
0.017
0.008
0.112
0.151
0.445
0.263
0.557
2.7
0.9
6/73)
MEDIAN
31.5
5.4
50.
5.4
10.
0.016
0.006
0.110
0.120
0.400
0.240
0.500
3.0
0.9
3RD
RANGE
23.2 -
3.0 -
9. -
5.6 -
10. -
0.010 - 0
0.010 - 0
0.060 - 0
0.060 - 0
0.400 - 1
0.120 - 0
0.460 - 1
11.9 -
0.9 -
SAMPLING ( 9/21/73)
3
32.0
7.8
14.
6.3
10.
.020
.Olo
.080
.130
.400
.210
.480
20.5
1.1
SITES
MEAN
28.6
6.2
13.
6.0
10.
0.014
0.012
0.066
0.081
0.700
0.147
0.766
16.6
1.0
MEDIAN
28.9
6.3
14.
6.1
10.
0.013
0.011
0.060
0.075
0.550
0.135
0.610
17. J
1.0
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B. Biological Characteristics:
1. Phytoplankton -
Sampling
Date
03/22/73
07/06/73
09/21/73
2. Chlorophyll a_ -
Sampling
Date
03/22/73
07/06/73
09/21/73
Dominant Algal Units
Genera per ml
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Cosmarium SJD.
Gy nodi ni urn sp.
Cryptomonas sp.
Ankistrodesmus (?) sj>.
Tabellaria SJD.
Other genera
Total
Asterionella SJK
Staurastrum sp.
Synedra sp.
Mallomonas sp.
Flagellates
Other genera
Total
Cosmarium sp.
Sphaerozoma sp.
Staurastrum sp.
Closterium SJD.
Desmids
Other genera
5,116
82
58
47
12
24
5,339
5,572
182
136
68
68
293
6,319
9,951
5,850
2,988
2,671
477
95
Total
Station
Number
1
2
3
1
2
3
1
2
3
22,032
Chlorophyll a_
(yg/1)
9.4
9.0
1.4
3.0
3.5
1.5
17,
20,
11.9
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8
C. Limiting Nutrient Study:
The algal assay results are not considered representative of
conditions in the lake because of nutrient losses in the assay
sample during shipping. The lake data indicate that the lake was
limited by nitrogen in the fall (i.e., the mean inorganic nitro-
gen/orthophosphorus ratio was 12/1). At the other sampling
times, the data indicate phosphorus limitation (i.e., the mean
N/P ratios were greater than 30/1 in March and July).
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IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the South Carolina
National Guard collected monthly near-surface grab samples from
each of the tributary sites indicated on the map (page v), except
for the high runoff months of March and January when two samples, were
collected. Sampling was begun in February, 1973, and was completed
in February, 1974.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the South Carolina District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were
calculated using mean concentrations and mean flows. Nutrient loads
shown are those measured minus point-source loads, if any.
Nutrient loads for unsampled "minor tributaries and immediate
drainage" ("ZZ" of U.S.G.S.) were estimated using the means of the
nutrient loads, in kg/km2/year, at stations B-l, D-l, E-l, F-l, and
G-l and multiplying the means by the ZZ area in km2.
The operator of the Pageland south wastewater treatment plant
provided monthly effluent samples and corresponding flow data.
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10
A. Waste Sources:
1. Known municipal* -
Pop. Mean Flow Receiving
Name Served Treatment (m3/d) Water
Pageland, S. 800 stab, pond 707.8 Big Black Creek
plant
2. Known industrial** - None
* Anonymous, 1971.
** Foley, 1976.
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11
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries (non-point load) -
Black Creek 1,345 40.7
Unnamed Creek B-l 45 1.4
Lower Alligator Creek 45 1.4
Little Beaverdam Creek 100 3.0
Unnamed Creek E-l 20 0.6
Big Beaverdam Creek 150 4.5
Pond Hollow Branch 100 3.0
b. Minor tributaries & immediate
drainage (non-point load) - 400 12.1
c. Known municipal STP's -
Page!and 925 28.0
d. Septic tanks* - 25 0.8
e. Known industrial - None
f. Direct precipitation** - 150 4.5
Total 3,305 100.0
2. Outputs -
Lake outlet - Black Creek 3,295
3. Net annual P accumulation - 10 kg.
* Estimate based on 80 lakeshore dwellings; see Working Paper No. 175.
** See Working Paper No. 175.
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12
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yr total
a. Tributaries (non-point load) -
Black Creek 67,505 61.8
Unnamed Creek B-l 1,310 1.2
Lower Alligator Creek 3,050 2.8
Little Beaverdam Creek . 3,490 3,2
Unnamed Creek E-l 425 0.4
Big Beaverdam Creek 5,640 5.2
Pond Hollow Branch 2,390 2.2
b. Minor tributaries & immediate
drainage (non-point load) - 11,575 10.6
c. Known municipal STP's -
Pageland 3,490 3.2
d. Septic tanks* - 855 0.8
e. Known industrial - None
f. Direct precipitation** - 9.370 8.6
Total 109,100 100.0
2. Outputs -
Lake outlet - Black Creek 93,330
3. Net annual N accumulation - 15,770 kg.
* Estimatebased on 80 lakeshore dwellings; see Working Paper No. 175.
** See Working Paper No. 175.
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13
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Black Creek 5 241
Unnamed Creek B-l 5 152
Lower Alligator Creek 3 174
Little Beaverdam Creek 5 160
Unnamed Creek E-l 6 133
Big Beaverdam Creek 6 219
Pond Hollow Branch 7 176
E. Yearly Loads:
In the following table, the existing phosphorus loadings
are compared to those proposed by Vollenweider (Vollenweider
and Dillon, 1974). Essentially, his "dangerous" loading is
one at which the receiving water would become eutrophic or
remain eutrophic; his "permissible" loading is that which
would result in the receiving water remaining oligotrophic
or becoming oligotrophic if morphometry permitted. A meso-
trophic loading would be considered one between "dangerous"
and "permissible".
Note that Vollenweider's model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated Total Accumulated
grams/m2/yr 0.38 0.01 12.6 1.8
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Lake Robinson:
"Dangerous" (eutrophic loading) 0.92
"Permissible" (oligotrophic loading) 0.46
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14
V. LITERATURE REVIEWED
Foley, John R., 1976. Personal communication (permitted point
sources in Lake Robinson drainage; cooling water use). SC
Dept. of Health & Env. Contr., Columbia.
Martin, R. 0. R., and Ronald L. Hanson, 1966. Reservoirs in the
United States. Water Supply Paper 1838, U.S. Geol. Surv.,
Wash., DC.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Natl. Res. Council of Canada Publ. No. 13690, Canada Centre
for Inland .Waters, Burlington, Ontario.
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VI. APPENDICES
APPENDIX A
LAKE RANKINGS
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LAKE DATA TO 9E USED IN RANKINGS
LAKE
CODE LAKE NAME
4503 FISHING CREEK
4504 LAKE GREENWOOD
4505 LAKE HARTHELL
4506 LAKE MARION
4507 LAKE MURRAY
4508 LAKE ROBINSON
4510 LAKE WATEREE
4511 LAKE HYLIC
4512 LAKE MOULTRIE
4513 LAKE KEOWEE
4514 LAKE SECESSION
4515 SALUDA LAKE
4516 LAKE WILLIAM C. BOWEN
MEDIAN
TOTAL P
0.143
0.061
0.013
0.055
0.024
0.014
0.094
0.045
0.026
0.008
0.057
0.046
0.022
MEDIAN
INORG N
0.535
0.470
0.130
0.280
0.260
0.260
0.4?0
0.380
0.200
0.170
0.355
0.230
0.360
500-
MEAN SEC
483.000
463.917
422.000
470.176
*24.905
458.778
475.667
46^.222
455.36.
371.750
462.778
476.833
459.889
MEAN
CHLOHA
2.811
8.150
6.157
8.728
6. 4': 8
8.611
8.408
5.422
8.800
2.d33
10.722
1.517
3.911
Ib-
MIN DC
10.20C
15.000
15.000
14.90C
15.000
1<*.000
14.100
14.800
11.200
15.000
15.000
10.800
15.000
MEDIAN
DI55 ORTnO P
0.051
0.011
0.004
0.010
0.007
0.005
0.034
0.013
0.006
0.003
0.006
0.006
0.007
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PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
4503 FISHING CREEK RESERVOIR
4504 LAKE GREENWOOD
4505 LAKE HARTWELL
4506 LAKE MARION
4507 LAKE MURRAY
4508 LAKE ROBINSON
4510 LAKE WATEHEE
4511 LAKE WYLIE
4512 LAKE MOULTRIE
4513 LAKE KEOWEE
4514 LAKE SECESSION
4515 SALODA LAKE
4516 LAKE WILLIAM C. BOWEN
MEDIAN
TOTAL P
0 (
17 (
92 (
33 (
67 (
83 <
8 (
50 (
58 (
100 <
25 (
42 <
75 (
0)
2)
11)
4)
8)
10)
1)
6>
7)
12)
3)
5)
9)
MEDIAN
INORG N
0 <
a «
100 (
50 (
62 (
62 (
17 (
25 <
83 (
92 <
42 (
75 (
33 (
0)
1)
12)
6)
7)
7)
2)
3)
10)
11)
5)
9)
4i
500-
MEAN SEC
0
33
92
25
83
67
17
SO
75
100
42
8
58
( 0)
( 4>
( 11)
( 3)
< 10)
( 8)
( 2)
( 6)
( 9)
( 12)
( 5)
( 1)
( 7)
MEAN
CHLORA
92 (
42 (
58 (
17 (
50 (
25 I
33 (
67 (
8 (
83 (
0 (
100 (
75 (
11)
5)
7)
2)
6)
3)
4)
6)
1)
10)
0)
12)
9)
15-
MIN DO
100 (
21 (
21 (
50 (
21 <
75 (
67 (
58 (
83 (
21 (
21 (
92 (
21 (
12)
0)
0)
6)
0)
9)
8)
7)
10)
0)
0)
11)
0)
MEDIAN
oiss OKTHO P
0 (
25 (
92 (
33 (
46 (
83 (
8 (
17 (
71 (
100 (
58 (
71 (
46 (
0)
3)
11)
4)
5)
10)
1)
2)
8)
12)
7)
8)
5)
INDEX
NO
192
146
455
208
329
395
150
267
378
496
188
3d8
308
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LAKES RANKED B* INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
1 4513 LAKE KEOwEE
2 4505 LAKE HARWELL 455
3 4508 LAKE ROBINSON 395
4 4515 SALUDA LAKE 368
5 4512 LAKE MOULTRIE 378
6 4507 LAKE MURRAY 329
7 4516 LAKE WILLIAM C. BOWEN 308
8 4511 LAKE WYLIE 267
9 4506 LAKE MARION 208
10 4503 FISHING CREEK RESERVOIR 192
11 4514 LAKE SECZSS10M 188
12 4510 LAKE WATEREt 150
13 4504 LAKE GREENWOOD 146
-------
APPENDIX B
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
Cubic meters x 8.107 x 10 = acre/feet
Square kilometers x 0.3861 = square miles
Cubic meters/sec x 35.315 = cubic feet/sec
Centimeters x 0.3937 = inches
Kilograms x 2.205 = pounds
Kilograms/square kilometer x 5.711 = Ibs/square mile
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLO* INFORMATION FOR SOUTH CAROLINA
04/27/76
LAKE CODE 4508
LAKE ROBINSON
TOTAL DRAINAGE AREA OF LAKE(SO KM)
SUB-DRAINAGE
TRIBUTARY AREAISCl KM)
JAN
FEB
448.1
MAR
APR
MAY
NORMALIZED FLOWS(CMS)
JUN JUL AUG
SEP
OCT
NOV
DEC
TOTAL DRAINAGE AREA OF LAKE =
SUM OF SUB-DRAINAGE AREAS =
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY
448.1
439.0
450BA1
4508A2
2
3
4
5
6
7
a
9
10
11
12
1
2
?
3
4
5
6
7
8
9
10
11
12
1
?.
73
73
73
73
7J
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
73
74
74
10.619
10.336
12.318
6.654
8.920
6.711
4.984
4.021
3.681
3.681
6.173
7.561
9.345
8.495
7.221
10.194
4.814
6.513
4.672
3.256
2.549
2.209
2.124
3.964
4.814
6.796
24
9
7
4
9
8
2
4
1
3
7
8
10
24
9
7
4
9
8
2
4
1
3
7
8
10
FLOW
8.495
13.309
16.141
8.070
6.513
7.362
5.522
3.200
4.248
3.285
4.021
9.203
9.486
6.173
9.911
18.406
5.522
4.870
4. 106
3.256
1.869
2.BR8
1.B41
2.492
4.531
7.504
DAY
15
21
15
21
SUMMARY
FLOW DAY
12.035
TOTAL FLOW IN =
TOTAL FLOW OUT =
FLOW
6.230
9.486
3.625
78.72
78.86
MEAN
4508A1
4508A2
4508B1
4508C1
450801
4508E1
4508F1
4508G1
4508ZZ
448.1
279.7
8.6
17.5
21.8
3.2
25.7
13.6
68.9
8.07
5.86
0.113
0.23
0.2a
0.028
0.31
0.17
0.96
8.92
6.65
0.113
0.25
0.31
0.057
0.37
0.20
1.10
9.77
7.33
0.142
0.28
0.34
0.057
0.40
0.23
1.22
7.50
5.63
0.113
0.23
0.28
0.028
0.31
0.17
0.96
5.52
3.99
0.085
0.14
0.20
0.028
0.23
0.11
0.68
5.24
3.68
0.057
0.14
0.17
0.028
0.20
0.11
0.62
5.1U
3.62
0.057
0.14
0.17
0.028
0.20
0.11
0.62
6.80
4.73
0.085
0.17
0.23
0.028
0.25
0.14
0.79
5.10
3.48
0.057
0.14
0.17
0.028
0.20
0.11
0.59
5.24
3.91
0.085
0.14
0.17
0.028
0.23
0.11
0.6S
5.52
4.19
0.08S
0.17
0.20
0.028
0.23
0.11
0.71
6.09
4.47
0.085
0.17
0.20
0.028
0.25
0.14
0.74
6.56
4.80
0.090
0.18
0.23
0.033
0.26
0.14
0.80
-------
TRIBUTARY FLO*1 INFORMATION FOR SOUTH CAttOLlNA
04/27/76
LAKE CODE 4508
LAKE ROblNSON
MEAN MONTHLY FLOWS AND UAILY FLOWS(CMS)
TRIBUTARY MONTH YEAH
4508B1
4508C1
4508D1
4508E1
2
3
4
5
6
7
8
9
10
11
12
1
?_
2
3
4
5
6
7
8
9
10
11
12
1
?
2
3
4
5
b
7
8
9
10
11
1?
1
2
2
3
4
5
b
7
R
9
10
11
12
1
2
73
73
73
73
73
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
73
74
74
MEAN FLO* DAY
0.113
0.170
0.113
0.085
0.142
O.OB5
0.085
0.085
0.057
0.057
0.113
0.142
0.170
0.198
0.368
0.227
0.170
0.283
0.198
0.198
0.142
0.142
0.142
0.227
0.283
0.340
0.255
0.453
0.283
0.198
0.368
0.237
0.227
0.198
0.170
0.170
0.283
0.340
0.396
0.028
0.057
0.057
0.028
0.057
0.0 ?8
0.028
0.023
0.028
0.023
0.057
0.057
O.OBS
24
9
7
4
9
8
2
4
1
3
7
8
10
24
9
7
4
9
8
2
4
1
3
7
8
10
24
9
7
4
9
8
2
4
1
3
7
A
10
24
9
7
4
9
8
2
4
1
3
7
8
10
0.311
0.283
0.142
0.113
0.193
0.142
0.113
0.057
0.142
0.085
0.113
0.142
0.227
0.651
0.566
0.255
0.227
0.396
0.255
0.198
0.113
0.255
0.113
0.170
0.255
0.481
0.821
0.708
0.311
0.283
0.481
0.34C
0.255
0.142
0.396
0.142
0.2?7
0.340
0.595
0.113
0.113
0.057
0.028
0.057
0.057
0.023
0.023
0.035
0.023
0.057
0.057
0.085
FLOW DAY
0.255
FLOW
0.113
0.425
0.227
0.510
0.283
0.085
0.057
-------
TRIBUTARY FLOW INFORMATION FOR SOUTH CAROLINA
04/27/76
LAKE CODE 4508
LAKE ROBINSON
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY
4508F1
4508G1
4508ZZ
2
3
4
5
6
7
8
9
10
11
12
1
2
2
3
4
5
6
7
8
9
10
11
12
1
2
2
3
4
5
6
7
a
9
10
11
12
1
2
73
73
73
73
73
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
73
74
74
0.311
0.538
0.340
0.255
0.425
0.283
0.283
0.227
0.198
0.198
0.340
0.425
0.510
0.170
0.283
0.170
0.142
0.227
0.142
0.142
0.113
0.113
0.113
0.170
0.227
0.255
0.793
1.416
0.906
0.680
1.161
0.736
0.736
0.623
0.510
0.510
0.850
1.133
1.274
24
9
7
4
9
8
2
4
1
3
7
8
10
24
9
7
4
9
8
2
4
1
3
7
8
10
24
9
7
4
9
8
2
4
1
3
7
8
10
FLOW
0.963
0.850
0.368
0.340
0.566
0.396
0.311
0.142
0.481
0.170
0.283
0.396
0.708
0.510
0.453
0.198
0.170
0.311
0.198
0.170
0.085
0.227
0.085
0.142
0.198
0.368
2.549
2.265
0.991
0.906
1.501
1.048
0.793
0.425
0.566
0.425
0.623
1.048
1.841
DAY
15
21
15
21
15
21
FLOW DAY
0.623
FLOW
0.340
0.340
0.170
1.699
0.906
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORET RETRIEVAL DATE 76/04/37
450801
34 24 25.0 080 09 05.0 3
LAKE ROBINSON
45031 SOOTH CAROLINA
030791
DATE
FROM
TO
73/03/22
73/07/06
73/09/21
DATE
FROM
TO
73/03/22
73/07/06
73/09/21
TIME DEPTH
OF
DAY FEET
10 00 0000
10 00 0006
10 00 0012
10 00 0019
10 00 0027
11 00 0000
11 00 0006
11 00 0015
11 00 0031
12 40 0000
12 40 0015
12 40 0030
TIME DEPTH
OF
DAY FEET
10 00 0000
10 00 0006
10 00 0012
10 00 0019
10 00 0027
11 00 0000
11 00 0006
11 00 0015
11 00 0031
12 40 0000
12 40 0015
12 40 0030
00010
WATER
TEMP
CENT
17.6
17.5
17.5
17.5
17.5
32.4
32.1
31.5
27.2
30.0
28.9
28.6
00665
PHOS-TOT
MG/L P
0.014
0.011
0.009
0.019
0.020
0.016
0.013
0.017
0.026
0.020
0.014
0.013
00300
00
MG/L
8.6
8.4
8.5
8.4
6.6
6.6
1.0
7.8
6.6
5.6
32217
CHLRPHYL
A
UG/L
9.4
3.0
17.3
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
48 50K
50K
50K
50K
50K
36 50K
50K
50K
50K
40 14
14
13
11EPALES 2111202
0031 FEET DEPTH CLASS 00
00400 00410 00610 00625
PH
SU
6
6
6
6
6
5
5
5
5
6
6
6
.00
.10
.20
.10
.10
.60
.60
.40
.40
.30
.10
.10
T ALK
CAC03
MG/L
10K
10K
10K
10K
10K
10K
10K
10K
10K
10K
10K
10K
NH3-N
TOTAL
MG/L
O.OBO
0.070
0.070
0.080
0.070
0.150
0.100
0.230
0.310
0.130
0.060
0.060
TOT KJEL
N
MG/L
0.500
0.400
0.300
0.300
0.300
0.300
0.300
0.400
0.600
1.400
0.500
0.500
00630
N02&N03
N-TOTAL
MG/L
0.630
0.620
0.580
O.b30
0.610
0.120
0.100
0.110
0.140
0.080
0.060
0.060
00671
PHOS-DIS
ORTriO
MG/L P
0.005
0.004
0.004
0.005
0.006
0.011
0.012
0.012
0.020
0.016
0.014
0.011
K VALUE KNOWN FO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/04/27
450802
34 26 25.0 080 09 12.0 3
LAKE ROBINSON
45025 SOUTH CAROLINA
030791
11EPALES
2111202
0027 FEET DEPTH CLASS
DATE
FROM
TO
73/93/22
73/07/06
73/09/21
DATE
FROM
TO
73/03/22
73/07/06
73/09/21
TIME DEPTH
OF
DAY FEET
12 20 0000
12 20 0006
12 20 0012
12 20 0018
10 30 0000
10 30 0006
10 30 0015
10 30 0023
13 00 0000
13 00 0010
13 00 0019
TIME DEPTH
OF
DAY FEET
12 20 0000
12 20 0006
12 20 0012
12 20 0018
10 30 0000
10 30 0006
10 30 0015
10 30 0023
13 00 0000
13 00 0010
13 no 0019
00010
WATER
TEMP
CENT
17.2
17.2
17.2
17.0
34.0
32.6
29.7
27.6
32.0
28.9
26.4
00665
PHOS-TOT
MG/L P
0.013
0.012
0.011
0.013
0.015
0.013
0.015
0.019
C.016
0.010
0.012
00300
DO
MG/L
8.5
8.6
8.4
5.6
4.7
2.7
7.0
6.0
3.0
32217
CHLRPHYL
A
UG/L
9.0
3.5
20.5
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES M1CROMHO
48 SON
50K
50K
50K
36 50K
50K
50K
50K
37 14
13
14
00400
PH
SU
6.00
5.90
6.10
6.20
5.30
5.40
5.40
5.30
6.20
5.70
5.6C
00410
T ALK
CAC03
MG/L
10K
10K
10K
10K
10K
10K
10K
10K
10K
10K
10K
00610
NH3-N
TOTAL
MG/L
0.080
0.090
0.070
0.080
0.120
0.110
0.140
0.180
0.080
0.070
0.100
00
00625
TOT
N
KJEL
MG/L
0
0
0
0
0
0
0
0
0
0
0
.500
.400
.400
.300
.400
.300
.400
.600
.900
.400
.600
00630
N02&N03
N-TOTAL
MG/L
0.710
0.720
0.670
0.710
0.100
0.110
0.110
0.130
0.060
0.060
0.060
00671
PHOS-DIS
ORTHO
MG/L P
0.004
0.004
0.004
0.005
0.005
0.005
0.007
0.005
0.016
0.010
0.010
K ViLlJE KNOWN TO BE
LESS fHi,N INOICwIEu
-------
STORE! RETRIEVAL DATE 76/04/27
450803
34 28 07.0 080 10 13.0 3
LAKE ROBINSON
45025 SOUTH CAROLINA
030791
11EPALES 2111202
0009 FEET DEPTH CLASS 00
DATE
FROM
TO
73/03/22
73/07/06
73/09/21
DATE
FROM
TO
73/03/22
73/07/06
73/09/21
TIME
OF
DAY
12 55
12 55
09 50
09 50
U9 50
13 35
13 35
TIME
OF
DAY
12 55
12 55
09 50
09 50
09 50
DEPTH
FEET
0000
0005
0000
0006
0010
0000
0007
DEPTH
FEET
0000
0005
0000
0006
0010
13 35 0000
13 35
0007
00010
MATER
TEMP
CENT
12.9
12.9
33.0
30.6
26.4
31.1
23.2
00665
PHOS-TOT
MG/L P
0.012
0.012
0.023
0.014
0.018
0.014
0.012
00300
DO
MG/L
8.
6.
5.
7.
5.
32217
00077 00094
TRANSP CNOUCTVY
SECCHI FIELD
INCHES MICROMHO
48
6
36
0
2
8 42
6
50K
50K
50K
50K
50K
12
9
00400 00410
PH T ALK
CAC03
SU
6.60
6.10
5.40
5.50
5.50
6.3C
5.70
MG/L
10K
10K
10K
10K
10K
10K
10K
00610 00625 00630 00671
NH3-N TOT KJEL N02&N03 PHOS-DIS
TOTAL N N-TOTAL ORTHO
MG/L
0.100
0.080
0.120
0.080
0.120
0.090
0.060
MG/L MG/L
0.400 0.750
0.400 0.720
1.000 0.110
0.300 0.080
0.300 0.120
0.900 0.080
0.400 0.070
MG/L P
0.004
0.002
0.006
0.005
0.005
0.011
0.011
CHLRPHYL
A
UG/L
1.
1.
11.
4
5
9
K VALUE KNOrfN TO BE
LESS THAN INDICATED
-------
APPENDIX E
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
-------
STORET RETRIEVAL DATE 76/04/27
4508A1
34 24 00.0 060 09 00.0 4
BLACK CREEK
45 ?.5 LK ROBINSON
0/ROBINSON LAKE 030791
RO BRDG AT GAGING STATION BELO DAM
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/02/24
73/03/09
73/03/15
73/04/07
73/05/04
73/06/09
73/07/08
73/08/02
73/09/04
73/10/01
73/11/03
73/12/07
74/01/08
74/01/21
74/02/10
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
10 07
16 35
17 38
10 30
17 45
10 00
10 10
17 45
17 45
10 15
14 00
13 30
13 30
17 45
13 15
MG/L
0.034
0.020
0.018
0.027
0.052
0.052
0.014
0.010K
0.011
0.012
0.024
0.036
0.048
0.032
0.028
MG/L
0.290
0.280
0.320
0.290
0.520
0.840
0.330
0.390
0.580
0.480
0.350
0.800
0.400
0.100K
0.400
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.013
0.011
0.021
0.034
0.046
0.029
0.040
0.029
0.032
0.067
0.020
0.052
0.020
0.012
0.020
MG/L P
0.006
0.012
0.010
0.005K
0.006
0.008
0.010
0.006
0.005K
0.005K
0.012
0.008
0.008
0.008
0.005
MG/L P
0.015
0.015
0.010
0.010
0.015
0.020
0.015
0.015
0.025
0.020
0.015
0.025
0.006
K VflLUt" KNOWN TO BE
LESS THuN INDICATED
-------
STORE! RETRIEVAL DATE 76/04/27
450BA2
34. 35 30oO 080 11 OOcO 4
bLACK CREEK
45 7o5 MIDDENOORF
I/ROBINSON LAKE 030791
US RT 1 3RUG 2 MI N OF LAKE
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/02/24
73/03/09
73/03/15
73/04/07
73/05/0*
73/06/09
73/07/08
73/08/02
73/09/04
73/10/01
73/11/03
73/12/07
74/01/08
74/01/21
74/02/10
00630 00625
TIME DEPTH N03&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
11 00
17 05
18 40
11 25
18 35
10 35
11 05
18 45
18 45
10 54
14 55
14 ^5
14 35
18 35
14 15
MG/L
0.046
0.010K
0.016
0.010K
0.025
0.044
0.056
0.042
0.050
0.023
0.036
0.048
0.028
0.064
0.008
MG/L
0.140
0.290
0.170
0.460
1.200
0.440
0.460
0.370
0.600
1.150
0.150
0.500
0.200
0.100K
0.300
00610 00671 00665
NH3-N PHOS-DIS PhOS-TOT
TOTAL ORTHO
MG/L
0.018
0.017
0.017
0.020
0.190
G.029
0.060
0.032
0.072
0.035
0.008
0.120
0.012
0.020
0.010
MG/L P
0.005K
0.008
0.005K
0.005K
0.022
0.006
0.010
0.005K
0.005K
0.005K
0.008
0.008
0.005K
0.008
0.010
MG/L P
0.005K
0.010
0.010
0.010
0.040
0.020
0.020
0.015
0.015
0.010
0.015
0.010
0.015
0.010
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/04/27
4508B1
34 28 00.0 080 10 30.0 4
UNNAMED CREEK
45 7.5 LK ROBINSON
T/ROBINSON LAKE 030791
KO BRDG ON W SIDE OF LAKE
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/02/24
73/03/09
73/03/15
73/04/07
73/05/04
73/06/09
73/07/08
73/08/02
73/09/04
73/10/01
73/11/03
73/12/07
74/01/08
74/01/21
74/02/10
TIME DEPTH
OF
DAY FEET
11 20
17 20
17 50
11 45
17 55
13 15
11 25
19 05
19 10
11 06
15 20
15 20
14 55
18 55
14 45
00630
00625
N02&N03 TOT KJEL
N-TOTAL
MG/L
0.030
0.031
0.081
0.011
0.034
0.016
0.014
0.010K
0.010K
0.021
0.016
0.016
0.052
0.064
0.032
N
MG/L
0.120
0.690
0.960
0.200
0.830
0.290
0.500
0.230
0.460
0.690
0.100K
0.400
0.600
0.100
0.300
00610
NH3-N
TOTAL
MG/L
0.008
0.034
0.100
0.013
0.042
0.025
0.176
0.047
0.028
0.066
0.016
0.100
0.136
0.016
0.015
00671
PHOS-DIS
ORTHO
MG/L P
0.005K
0.007
0.005K
0.005K
0.007
0.006
0.007
0.006
0.006
0.005K
0.005K
0.005K
0.005K
0.005K
0.005
00665
PHOS-TOT
MG/L P
0.005K
0.010
0.020
0.015
0.015
0.025
0.020
0.015
0.015
0.005
0.020
0.015
0.015
0.010
KNOWN ro BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 76/04/27
450HC1
34 29 OOoO 080 10 30oO 4
LOWER ALLIGATOR CREEK
45 705 LK ROBINSON
T/ROBINSON LAKE 030791
RD BRDG NEAR N END OF LAKE ON W SIDE
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/02/24
73/03/09
73/03/15
73/04/07
73/05/04
73/06/09
73/07/Od
73/08/02
73/09/0<»
73/10/01
73/H/03
73/12/07
74/01/08
74/01/21
74/02/10
TIME DEPTH
OF
DAY FEET
11 15
17 15
18 00
11 40
18 50
13 00
11 20
18 55
18 55
11 00
15 10
15 00
14 <*S
17 55
14 25
00630
N02&N03
N-TOTAL
MG/L
0.160
0.130
0.390
0.120
0.105
0.110
0.115
0.087
0.100
0.074
0*132
0.116
0.112
0.240
0.184
00625
TOT KJEL
N
MG/L
OclOOK
0.260
0.230
0.180
0.400
1.150
0.380
0.190
0.320
0.920
0.550
0.600
0.200
0.100K
0.300
00610
NH3~N
TOTAL
MG/L
0.010
0.018
0.012
0.006
0.013
0.046
0.030
Oo042
0.021
0.050
0.044
U.168
0.012
0.040
0.030
00671
PHOS-OIS
ORTHO
MG/L P
0.005K
Oo005K
0.005K
0.005K
0.005K
OcOOSK
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005
00665
PHOS-TOT
MG/L P
0»005K
0.005K
0.015
0.005K
OoOOSK
0.010
0.005K
0.005K
0.010
0.005K
0.015
0.005K
0.010
0.005K
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 76/04/27
4506D1
34 29 30.0 080 10 00.0 4
LITTLE BEAVEROAM BRANCH
45 7.5 LK ROBINSON
T/R08INSON LAKE 030791
RO BRJG NEAR N END OF LAKE ON E SIDE
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/02/24
73/03/09
73/03/15
73/04/07
73/05/04
73/06/09
73/07/08
73/08/02
73/09/04
73/10/01
73/11/03
73/12/07
74/01/08
74/01/21
74/02/10
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET MG/L MG/L
10
17
18
11
18
10
10
18
18
10
14
14
14
18
14
50
00
05
20
22
30
55
35
30
45
45
35
20
25
00
0
0
0
0
0
0
0
0
0
0
.105
.061
.020
.052
.054
.056
.089
.042
.058
.035
0.044
0
0
0
0
.048
.084
.104
.108
0.260
0.510
0.630
0.250
0.780
0.380
0.440
0.370
0.550
0.630
0.150
0.500
0.200
0.200
0.400
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L MG/L P MG/L P
0.014
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
021
039
013
034
024
140
039
031
040
008
068
016
022
045
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
005K
005K
009
005K
007
005K
005K
005K
016
005K
005K
005K
005K
006
005
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.005K
.010
.030
.010
.015
.020
.015
.016
.025
.010
.025
.010
.006
.005K
K VflLUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/04/27
4508E1
34 28 OOoO 080 09 30«0 4
UNNAMED CREEK
45 7o5 LK ROBINSON
T/R08INSON LAKE 030791
RO BROG o7 MI SW OF GREEN HILL
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/02/24
73/03/09
73/03/15
73/04/07
73/05/04
73/06/09
73/07/Ob
73/08/02
73/09/04
73/10/01
73/11/03
73/12/07
74/01/08
74/C1/21
74/02/10
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
10
16
18
11
18
10
10
18
18
10
14
14
14
18
13
45
55
10
10
10
20
45
?5
20
37
35
15
15
15
45
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0031
«023
.046
.022
«016
.012
.021
oOlOK
oOlOK
.OiOK
.012
.014
.032
.028
.020
MG/L
Oe
0.
Oe
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
100K
580
315
420
400
370
750
350
185
820
150
500
400
100K
400
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
Oo
0.
0.
0.
0.
0.
Oo
0.
0.
0.
0.
0.
0.
0.
0.
029
042
008
027
035
066
140
110
120
071
020
036
036
028
035
MG/L P
0.005K
Oo006
0.005K
0.005K
0.011
0.009
0.011
0.016
0.005K
0.007
0.008
0.005K
0.008
0.008
0.005
MG/L P
0
0
0
0
0
0
u
0
0
0
0
0
0
0
.005K
0015
.010
,020
o045
0030
.035
.035
.030
.008
.015
.010
.010
.005K
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/04/27
4508F1
34 28 00.0 080 08 30.0 4
BIG BEAVERDAM CREEK
45 7.5 LK ROBINSON
T/ROBINSON LAKE 030791
RD BRDG .6 MI SE OF GREEN HILL
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/02/24
73/03/09
73/03/15
73/04/07
73/05/04
73/06/09
73/07/08
73/08/02
73/09/04
73/10/01
73/11/03
73/12/07
74/01/08
74/01/21
74/02/10
00630 00625
TIME DEPTH N028.N03 TOT KJEL
OF N-TOTAL N
DAY FEET
10 40
16 50
18 15
11 05
19 20
10 15
10 35
18 15
18 10
10 30
14 25
13 55
14 05
18 05
13 35
MG/L
0.500
0.410
0.010K
0.399
0.027
0.330
0.336
Oo294
0.315
Oo250
Oe336
0.400
0.394
0.
-------
STORET RETRIEVAL DATE 76/04/27
4508G1
34 25 00.0 080 08 30.0 4
POND HOLLOW BRANCH
45 7.5 LK ROBINSON
T/ROBINSON LAKE 030791
RD BRDG 1 MI N OF NEW MARKET
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/02/24
73/03/09
73/03/15
73/04/07
73/05/04
73/06/09
73/07/08
73/08/02
73/09/04
73/10/01
73/11/03
73/12/07
74/01/08
74/01/21
74/02/10
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
10
16
18
10
19
10
10
18
17
10
14
13
13
18
13
30
40
35
55
00
00
20
00
55
20
15
45
50
45
25
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.011
.015
.120
.154
.072
.074
.026
.126
.050
.048
.034
.088
.288
.156
.232
MG/L
0.
0.
0.
1.
1.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
100K
190
560
150
000
420
520
290
230
610
150
300
700
100K
300
00610 00671 00665
NH3-N PHOS-OIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
015
016
007
132
180
092
350
080
147
110
062
0.040
0.
0.
0.
056
016
063
MG/L P
0.005K
0.005K
0.005K
0.006
0.011
0.006
0.005K
0.006
0.006
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
MG/L P
G
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.005K
.010
.005K
.040
.020
.035
.020
.040
.025
.025
.015
.050
.010
.005K
.035
K VALUE KNOWN TO bt
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 76/04/27
4508AA IP4508AA P001200
35 45 28.0 080 23 40.0 4
PAGELAND
45 CHESTERFIELD CO
T/LAKE ROBINSON 030791
BIG BLACK CREEK
•11EPALES 2141204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/06/04
73/07/09
73/08/08
73/09/10
73/10/28
74/01/30
74/03/08
74/04/29
74/06/07
74/07/01
74/09/03
TIME DEPTH
OF
DAY
16
15
15
15
11
15
15
11
14
11
FEET
00
00
00
00
00
00
00
00
30
00
00630
N02S.N03
N-TOTAL
MG/L
0.100
0.060
0.270
0.044
0.130
6.800
0.080
0.120
0.040
0.040
0.040
00625
TOT KJEL
N
MG/L
15.000
26.000
11.500
13.800
18.000
1.300
12.000
14.000
13.750
16.000
13.000
00610
NH3-N
TOTAL
MG/L
3.750
1.980
0.170
0.600
0.105
0.080
4.500
5.000
3.900
4.800
0.610
00671
PHOS-DIS
ORTHO
MG/L P
3.320
2.840
2.100
3.120
3.150
3.200
2.100
2.700
2.100
2.400
0.170
00665
PHOS-TOT
50051
FLOW
RATE
MG/L P
4.300
5.300
3.400
4.600
5.250
3.400
2.900
3.750
2.700
3.500
2.500
INST
0
0
0
0
0
0
0
0
0
MGD
.150
.200
.200
.200
.200
.250
.200
.180
.179
50053
CONDUIT
FLOW-MGO
MONTHLY
0
0
0
0
0
0
0
0
0
.150
.175
.175
.175
.185
.250
.175
.200
.200
------- |