U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKE KXJLIRIE
BERKELEY CQIMY
' SOUTH CAROLINA
EPA REGION IV
WORKING PAPER No, 435
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
•itOfO 697.03Z
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REPORT
ON
LAKE MDULTRIE
BERKELEY COUNTY
SOUTH CAROLINA
EPA REGION IV
WORKING PAPER No, 435
WITH THE COOPERATION OF THE
SOUTH CAROLINA DEPARTMENT OF HEALTH AND
ENVIRONMENTAL CONTROL
AND THE
SOUTH CAROLINA NATIONAL GUARD
AUGUST, 1976
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1
CONTENTS
Pag
Foreword
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 10
V. Literature Reviewed 16
VI. Appendices 17
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11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration con iiitinent 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 degradations 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 [ g303(e)], water
quality criteria/standards review [ 3O3(c)], clean lakes [ 314(a,b)] ,
and water quality monitoring [ 1O6 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
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lii
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, rnultivariate 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 COUNTY
Clark Hill Abbeville, McCor-
mick, SC; Colum-
bia, Elbert, Lin-
coln, McDuffie,
Wilks, GA
Fishing Creek Chester, Lancaster
Greenwood Greenwood, Laurens,
Newberry
Hartwell Anderson, Oconee,
Pickens, SC;
Franklin, Hart,
Stephens, GA
Keowee Oconee, Pickens
Marion Berkeley, Calhoun,
Claredon, Orange-
burg, Sumter
Moultrie Berkeley
Murray Lexington, Newberry,
Richiand, Saluda
Robinson Chesterfield, Dar-
1 ington
Saluda Greenville, Pickens
Secession Abbeville, Anderson
Wateree Fairfield, Kershaw,
Lancaster
William C. Bowen Spartanburg
Wylie York, SC; Gaston,
Mecklenburg, NC
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j ..ak 0
4- -
KE
OULTR
E.
MAP LOCATION
LAKE MOULTRIE
® Tributary Sampling Site
Lake Sampling Site
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LAKE MOULTRIE
STORET NO. 4512
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate Lake Moultrie is eutrophic. It ranked
fifth in overall trophic quality when the 13 South Carolina lakes
sampled in 1973 were compared using a combination of six parameters*.
Five of the lakes had less median total phosphorus, three had less
and two had the same median dissolved orthophosphorus, two had less
median inorganic nitrogen, 11 had less mean chlorophyll a, and three
had greater mean Secchi disc transparency.
Survey limnologists did not observe any surface concentrations
of algae but reported that aquatic rnacrophytes were common along most
of the shoreline.
B. Rate-Limiting Nutrient:
The algal assay results indicate the lake was phosphorus limited
at the time the samples were collected (03/26/73). The lake data
indicate phosphorus limitation in July and September as well.
C. Nutrient Controllability:
1. Point sources--It is estimated that the phosphorus contri-
butions of point sources accounted for 43.5% of the total load
reaching Lake Moultrie during the sampling year. The indirect
municipal point sources in the drainage of upstream Lake Marion**
* See Appendix A.
** Working Paper No. 434.
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2
contributed almost all of the load. However, the phosphorus
contributions of the distant municipal point sources in the
Broad River drainage of Lake Marion were not included as point-
source loads to that lake, so the proportion of indirect point-
source phosphorus inputs to Lake Moultrie must be greater than
indicated.
The phosphorus loading of 2.31 g/m 2 measured during the
sampling year is 1.7 times that proposed by Vollenweider (Vollen-
welder and Dillon, 1974) as a eutrophic loading (see page 15).
However, Vollenweider’s model probably does not apply to water
bodies with short hydraulic retention times, and the mean hydrau-
lic retention time of Lake Moultrie is a relatively short 42 days.
Nonetheless, the existing trophic condition of the lake is evi-
dence of excessive nutrient loads.
It is calculated that 85% phosphorus removal at the indirect
point sources considered in this report would reduce the loading
to 1.46 g/m 2 /yr, or a little more than the eutrophic loading.
However, considering all of the point-sources in the Lake Marion
drainage and the persistent phosphorus-limited condition of Lake
Moultrie, it is likely that a high degree of point-source phos-
phorus control at the indirect sources would result in a signifi-
cant improvement in the trophic condition of Lake Moultrie, although
the numbers of rooted aquatic macrophytes might not be affected
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3
because of the alternate source of nutrients in the lake sediments.
2. Non-point sources--Non-point phosphorus inputs, including
precipitation, amounted to 56.5% of the total load. The Diversion
Canal accounted for 53.9%, and the ungaged minor tributaries and
immediate drainage contributed an estimated 1.8%.
During the Survey sampling year, about one-half of the area of
Lake Moultrie was part of the Santee National Wildlife Refuge, a
major Atlantic Flyway waterfowl wintering refuge. On the basis of
information provided by the Refuge Manager (Strickland, 1976), the
amounts of nutrients contributed to Lake Moultrie by migratory
waterfowl were estimated (see page 11 for method of calculation).
Ducks using the refuge added an estimated 50 kg P and 165 kg
N during the sampling year and accounted for less than 0.1% of the
total phosphorus and total nitrogen loads.
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Name _____________ __________
Diversion Canal
Santee Old Canal
Minor tributaries &
immediate drainage -
Totals
2. Outlet -
Tail Race Canal
C. Precipitation* *:
1. Year of sampling: 120.0 centimeters.
2. Mean annual : 113.8 centimeters.
tlable of metric conversions--Appendix B.
tt Martin and Hanson, 1966; maximum depth from Mast, 1974.
* 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.
4
II. LAKE AND DRAINAGE BASIN CHARACTERISTICSt
A. Lake Morphometrytt:
1. Surface area: 263.05 kilometers 2 .
2. Mean depth: 5.7 meters.
3. Maximum depth: 23.0 meters.
4. Volume: 1,494.373 x 106 m 3 .
5. Mean hydraulic retention time: 42 days.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage
area (km 2 )*
38,073.0
19.1
513.5
38,605.6
Mean flow
( m 3 /sec)*
409.390
0.166
4.460
414. 016
38,850.O** 414.016**
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5
III. LAKE WATER QUALITY SUMMARY
Lake Moultrie 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 seven 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 first visit, two 18.9-
liter depth-integrated samples were cornposited 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
6.1 meters at station 1, 7.9 meters at station 2, 6.7 meters at station
3, 13.7 meters at station 4, 9.1 meters at station 5, 4.9 meters at
station 6, and 2.4 meters at station 7. Station 6 was sampled only
in March.
The sampling results are presented in full in Appendix D and are
sumarized in the following table.
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A. SUMMARY OF PHYSICAL AND CHEMICAL Cr (As ACTE,- (ISTICS FOR LAKE MOULTRIE
STOPET CUL)E 4512
1ST SAMPLING ( 3/26/13) 2ND SAMPLING ( 7/ 9/73)
RANGE
MEAN MEDIAN
7 SITES 6 SITES 6 SITES
RANGE
3RD SAMPLING I 9/21/73)
PARAMETER
MEAN
MEDIAN
RANGE
MEAN
MEDIAN
TEMP (C)
15.0
15.7
15.4
15.5
28.3
— 31.6
29.1
29.5
27.4
- 28.3
27.8
27.7
DISS O*Y (MG/L)
9.2
— 10.2
9.6
9.6
3.8
— 8.0
6.3
o.2
6.4
- 7.6
7.0
7.0
CNDCrVY (MCROMO)
68.
— 85.
72.
70.
70.
— 79.
72.
71.
78.
- 8 5.
82.
82.
PH (STAND UNITS)
7.1
— 7.7
7.4
7.4
6.1
— 8.4
7.2
7.3
6.6
— 7.6
7.0
6.9
TOT ALK (MG/L)
10.
— 19.
14.
15.
22.
— 28.
25.
25.
12.
— 21.
17.
17.
TOT P (MG/LI
0.042
— 0.059
0.050
0.049
0.018
— 0.036
0.025
0.025
0.016
— 0.020
0.018
0.018
O, )TMO P (MG/LI
0.005
— 0.013
0.004
0.008
0.004
— 0.010
0.005
0.005
0.003
— 0.010
0.005
0.005
N02.N03 (MG/L)
0.190
— 0.320
0.230
0.230
0.050
— 0.170
0.101
0.095
0.020
— ( ).0 0
0.031
0.03v
AMMONIA (MG/LI
0.010
— 0.060
0.032
0.030
0.070
— 0.190
0.107
0.100
0.030
— 0.060
0.040
0.040
KJEL N (MC./L.)
0.200
— 0.600
0.350
0.300
0.500
— 1.300
0.732
0.650
0.300
— 0.900
0.460
0.400
INORG N (MG/L)
0.230
— 0.380
0.263
0.255
0.130
— 0.320
0.209
0.190
0.050
— 0.110
0.071
0.070
TOTAL N (MG/LI
0.400
— 0.820
0.580
0.540
0.670
— 1.380
0.833
0.775
0.320
— 0.950
0.491
0.430
CHL P1L A (U(./L)
7.7
- 12.6
10.1
10.3
6.6
— 8.8
7.6
7.4
6.8
— 10.1
8.4
8.1
SECCr4I (METERS)
0.s
— 0.8
0. ’ ,
0.6
1.0
— 1.7
1.3
1.4
1.3
— 1.9
1.5
1.4
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7
B. Biological Characteristics:
1. Phytoplankton -
Sampling Dominant Algal Units
Date Genera per ml
03/26/73 1. Flagellates 1,205
2. Cyclotella 829
3. Synedra p. 339
4. Stichococcus 282
5. Rhaphidiopsis p. 245
Other genera 885
Total 3,785
07/09/73 1. Melosira . 4,812
2. Lyngbya p. 3,609
3. Scenedesmus . p_. 740
4. Dactylococcopsis . 555
5. Flagellates 555
Other genera 3,332
Total 13,603
09/21/73 1. Dactylococcopsis 7,280
2. Chroococcus p_. 6,850
3. Melosira . 1,540
4. Pennate diatoms 770
5. Scenedesmus p_. 630
Other genera 630
Total 17,700
2. Chlorophyll a -
Sampling Station Chlorophyll a
Date Number ( pg/l )
03/26/73 1 9.0
2 10.8
3 11.2
4 10.3
5 9.4
6 12.6
7 7.7
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8
C. Limiting Nutrient Study:
Station
Number
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1. Autoclaved, filtered, and nutrient spiked -
a. Stations 1, 2, 3, 4, and 6 -
Spike (mg/i )
Ortho P
Conc. (mg/i )
Inorganic N
Conc. (mg/i )
Maximum yield
( mg/i-dry wt. )
Spjke (mg/i )
Control
0.010 P
0.020 P
0.050 P
0.025 P
0.050 P
1.0 N
Ortho P
Conc. (mg/i )
0.016
0.026
0.036
0.066
0.041
0.066
0.016
Inorganic N
Conc. (mg/i )
0.226
0.226
0.226
0.226
0.726
1.226
1 .226
Maximum yield
( mg/i-dry wt. )
3.0
5.7
6.9
7.0
12.5
21 .0
3.6
Sampling
Date
07/09/7 3
09/21 /73
Chlorophyll a
(jig/i)
6.8
7.3
8.5
7.5
6.6
8.8
7.9
7.7
6.8
10.1
8.4
9.8
Control
0.014
0.218
2.4
0.010 P
0.024
0.218
4.9
0.020 P
0.034
0.218
5.7
0.050 P
0.064
0.218
5.7
0.025 P + 0.5
N
0.039
0.718
15.4
0.050 P + 1.0
N
0.064
1.218
23.0
1.0 N
0.014
1.218
2.4
b. Stations 5 and 7 -
+ 0.5 N
+ 1.0 N
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2. Discussion -
The control yields of the assay alga, Selenastrum capri-
cornutum , indicate that the potential primary productivity
of Lake Moultrie was moderately high at the time the samples
were collected (03/26/73). Also, the increasing yields with
increasing concentrations of orthophosphorus indicate that the
lake was phosphorus limited at that time. Note that the
addition of only nitrogen resulted in yields not significantly
different from the control yields.
The lake data also indicate phosphorus limitation; i.e.,
the mean inorganic nitrogen/orthophosphorus ratios were 16/1
or greater at all sampling times, and phosphorus limitation
would be expected.
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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 month of 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
determined by using a modification of a U.S. Geological Survey computer
program for calculating stream loadings*. Nutrient loadings for unsam-
pled “minor tributaries and imediate drainage” (“ZZ” of U.S.G.S.) were
estimated using the means of the nutrient loads, in kg/km 2 /year, at
stations C-l, F-l, J-l, and K-l of nearby Lake Marion** and multiplying
the means by the ZZ area in km 2 .
Estimates of the nutrient contributions of migratory ducks are
based on the following information provided by Refuge Manager Charles
Strickland (1976): In 1973—74, duck-use—days totaled 1,152,500 (one-
half of the ducks were mallards), and coot-use-days totaled 154,850.
In calculating the nutrient loads, the following assumptions were
made:
* See Working Paper No. 175.
** Working Paper No. 434.
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1. Mallard ducks spend one-third of their time away from the refuge
waters (i.e., effective mallard-use-days = 384,165).
2. The remaining ducks and the coots spend practically all of their
time on the refuge waters and thus essentially recycle nutrients from the
lake back to the lake.
3. The physiology of waste excretion is similar among waterfowl,
and the amount of feces produced is approximately proportional to body
weight (Hutchinson, 1950).
4. The mean weight of con iion Canada geese is 3.870 kg and that of
mallard ducks is 1.148 kg (Kortright, 1943).
5. Common Canada geese contribute 0.439 g total phosphorus and 1.435
g total nitrogen per goose-use-day (Manny et al., 1975).
Only two small domestic point sources are located in the ininediate
Lake Moultrie drainage. Neither of these sources was sampled, and nutrient
loads were estimated at 1.134 kg P and 3.401 kg N/capita/year. Note that
the Cross High School population served was adjusted for normal school
attendance.
The indirect municipal point-source loads leaving upstream Lake Marion
were calculated by multiplying the nutrient loads leaving that lake via
the Diversion Canal and Santee Old Canal (588,120 kg P and 8,824,855 kg N)
by the fractions of the totals of the nutrient loads contributed by the
point sources (0.449 for P and 0.234 for N). All of the loads calculated
in this way were subtracted from the loads measured in the Diversion Canal
at station A-i, since only a very small proportion reached Lake Moultrie
through Santee Old Canal.
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A. Waste Sourcest:
1. Known domestic -
Pop. Mean Flow Receiving
Name Served Treatment ( m 3 /d) Water
Cross High 188* stab, pond 71.2** ditch/Lake
School Moultrie
Landopines SD, 50 stab, pond 15.1 Lake Moultrie
Pinopol is
2. Known industrial - None
t Foley, 1976.
* Adjusted: 750 students for 8 hours per day, 5 days per week, 9 months
per year.
** Estimated at 0.3785 m 3 /capita/day.
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13
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kgP/ %of
Source yr total
a. Tributaries (non—point load) —
Diversion Canal 327,795 53.9
Santee Old Canal 260 <0.1
b. Minor tributaries & immediate
drainage (non-point load) - 11,040 1.8
c. Known domestic SIP’s -
Cross High School 190 <0.1
Landopines SD 55 <0.1
Indirect - Lake Marion 264,065 43.4
drainage
d. Septic tanks* - 60 <0.1
e. Indirect industrial from Lake
Marion drainage — Unknown ?
f. Migratory ducks 50 <0.1
g. Direct precipitation - 4,605 0.7
Total 608,120 100.0
2. Outputs -
Lake outlet - Tail Race Canal 392,415
3. Net annual P accumulation - 215,705 kg.
* Estimate based on eight campgrounds and 93 lakeshore dwellings; see
Working Paper No. 175.
** See Working Paper No. 175.
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14
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs —
kgN/ %of
Source yr total
a. Tributaries (non-point load) -
Diversion Canal 6,757,145 72.8
Santee Old Canal 2,695 <0.1
b. Minor tributaries & immediate
drainage (non-point load) - 172,535 1.9
c. Known domestic STP’s -
Cross High School 640 <0.1
Landopines SD 170 <0.1
Indirect - Lake Marion 2,065,015 22.2
drainage
d. Septic tanks* - 2,150 <0.1
e. Indirect industrial from Lake
Marion drainage — Unknown ? -
f. Migratory ducks - 165 <0.1
g. Direct precipitation** - 283,990 3.1
Total 9,284,505 100.0
2. Outputs -
Lake outlet - Tail Race Canal 10,270,315
3. Net annual N loss - 985,810 kg.
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km 2 /yr kg N/km 2 /yr
Diversion Canal 9 177
Santee Old Canal 14 141
* Estimate based on eight campgrounds and 93 lakeshore dwellings; see
Working Paper No. 175.
** See Working Paper No. 175.
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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/rn 2 /yr 2.31 0.82 35.3 loss*
Vollenweider phosphorus loadings
(g/m 2 /yr) based on mean depth and mean
hydraulic retention time of Lake Moultrie:
“Dangerous” (eutrophic loading) 1.36
“Permissible” (oligotrophic loading) 0.68
* There was an apparent loss of nitrogen during the sampling year. This
may have been due to nitrogen fixation in the lake, solubilization of
previously sedimented nitrogen, recharge with nitrogen-rich ground water,
unsampled point sources discharging directly to the lake, or underesti-
mation of the nitrogen loads from septic tanks. Whatever the cause, a
similar nitrogen loss has occurred at Shagawa Lake, Minnesota, which has
been intensively studied by EPA’s former National Eutrophication and
Lake Restoration Branch (Malueg et al., 1975).
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16
V. LITERATURE REVIEWED
Foley, John R., 1976. Personal communication (permitted point sources
in the Lake Moultrie drainage). SC Dept. of Health & Env. Contr.,
Col umbia.
Hutchinson, George Evelyn, 1970. Biogeochemistry of vertebrate
excretion. Bull. Amer. Mus. Nat. Hist. 96: 1-554.
Kortright, Francis H., 1943. The ducks, geese and swans of North
America (2nd ed.). Amer. Wildlife Inst., Wash., DC.
Malueg, Kenneth W., D. Phillips Larsen, Donald W. Schults, and
Howard 1. Mercier; 1975. A six-year water, phosphorus, and nitro-
gen budget for Shagawa Lake, Minnesota. Jour. Environ. Qual.,
vol. 4, no. 2, pp. 236-242.
Manny, B. A., R. G. Wetzel, and W. D. Johnson, 1975. Annual contri-
bution of carbon, nitrogen and phosphorus by migrant Canada
geese to a hardwater lake. Verh. mt. Ver. Linnol. 19: 949-951.
Martin, R. 0. R., and Ronald L. Hanson; 1966. Reservoirs in the
United States. Water Supply Paper 1838, U.S. Geol. Surv., Wash.,
DC.
Mast, G. Nelson, 1974. Personal communication (maximum depth). SC
Dept. of Health & Env. Contr., Columbia.
Strickland, Charles (Manager), 1976. Personal communication (water-
fowl-use-days - lakes Marion and Moultrie). Santee Natl. Wildlife
Refuge, Suniiierton.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Natl. Res. Council of Canada Pubi. 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 10 BE USED IN RANKINGS
LAKE MEDI ’ MEDIAN 500— MEAN 15— MEDIAN
CODE LAKE NAME TOTAL P lf .OPG N MEAN SEC C - LOQA MIN )G DISS O’fl-’U P
4503 FI5)11N0 C’ EEK ESE VOI 0.143 0.535 483.000 2.811 1(s.20C 0.051
4504 LAKE GREENWOOD 0.061 0.470 ‘.63.917 8.150 15.000 0.011
‘.505 LAKE. HARTWELL 0.0 13 0.130 .22.000 6.157 15.000 0.004
4506 LAKE MARION 0.055 0.280 470. llb 8.728 14.90C 0.010
‘.507 LAKE MURRAY 0.024 0.260 .24.90S 6.4’8 15.000 0.007
4508 LAKE P OBINSON 0.014 0.260 458.778 8.611 1’..000 0.005
4510 LAKE WATEREE 0.094 0. ’ .co 475.667 8.408 14.100 0.034
4511 LAKE WYLIE 0.045 0.380 ‘.62.222 5.42? 14.800 0.013
‘.512 LAKE HOULTRI 0.026 0.200 455.36 8.800 11.200 0.006
4513 LAKE KEOWEE 0.008 0.170 371.750 2.d33 1 5.000 0.003
4514 LAKE SECESSION 0.057 0.355 462.778 10.722 15.000 0.006
4515 SAL(JDA LAKE 0.046 0.230 476.833 1.517 10.800 0.006
‘.516 LAKE WILLIAM C. 8UWEN 0.022 0.360 459.889 3.911 15.000 0.007
-------
PERCENT OF LAKES ITi- MIGI-4E VALUES (NUMBE OF LAKES wITH hJGHE VALUES)
LAKE MEDIAN MEDIAN 500- MEAN 15- MEDIAN INUEX
CODE LAKE NAME TOTAL P ENOWG N MEAN SEC CILORA MIU DO DISS O T iO P N )
4503 FISHING CREEK RESERvON 0 ( 0) 0 ( 0) 0 ( 0) 2 ( 11) 100 ( 12) 0 ( 0) 192
4504 LAKE & EENWUOD 17 ( 2) R ( 1) 33 C 4) 42 C 5) 21 ( 0) 25 C 3) 146
4505 LAKE. H4RT ELL 92 ( 11) 100 C 12) 92 C 11) 58 C 7) 21 C 0) 92 C 11) 455
4506 LAKE MARION 33 C 4) 50 C 6) 25 C 3) 17 C 2) 50 C 6) 33 C 4) 208
4507 LAKE MuRRAY 67 C 8) 62 C 7) 83 C 10) 50 C 6) 21 C 0) 46 C 5) 329
4508 LAKE ROBINSON 83 C 10) 62 ( 7) 67 1 8) 25 3) 75 ( 9) 83 1 10) 3’ 5
4510 LAKE. WATEREE 8 ( 1) 17 C 2) 17 C 2) 33 C 4) 67 C 8) 8 1 1) 150
4511 LAKE WYLIE 50 ( 6) 25 C 3) 0 C 6) 67 1 8) 58 C 7) 17 C 2) 267
4512 LAKE MOULTRIE 58 ( 7) 83 ( 10) 75 ( 9) 8 C 1) 83 1 10) 71 1 8) 378
4513 LAKE KEOWEE 100 C 12) 92 1 11) 100 C 12) 83 1 10) 21 C 0) 100 C 12) ‘.96
45)’. LAKE SECESSION ‘5 ( 3) 42 ( 5) 42 1 5) 0 C 0) 21 1 0) 58 ( 7) 188
4515 SALtJDA LAKE 42 C 5) 75 ( 9) 8 1 1) 100 C 12) 92 C 11) 71 C 8) 388
4516 LAKE WILLIAM C. BOWEN 75 9) 33 C 58 C 7) 75 ( 9) 21 ( 0) 46 C S) 30
-------
LAKES RANKED BY iNDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
I 4513 LAKE KEOwEE 49b
2 4505 LAKE t-4ARTWELL 455
3 450d LAKE ROBINSON 395
4 4515 SALUDA LAKE 388
S 4512 LAKE P400LTRIE 378
6 4507 LAKE MURRAY 329
7 4516 LAKE WILLIAM C. BOWEN 308
8 4511 LAKE WYLIE 267
9 450b LAKE MARION 208
10 4503 FISHINU CREEK RESERVOIR 192
11 4514 LAKE SEC:Ss ION 188
12 4510 LAKE WATEREt 150
13 4S04 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 = lbs/square mile
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
T tBUTAPY FLOW INFORMATION FOR SOUTrI CAROLINA
04/27/76
LAKE CODE 4512
LAKE MOULIRIE
TOTAL DRAINAGE AI EA OF LAKE(SO KM) 38850.0
SUB—DRA INAGE
TRI8UTARY AREA(SU KNI
NORMALIZED FLO S(CM )
JAN FEB MAR APR MAY JUN JUL AUG
SEP OCT NOV DEC MEAN
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRI8UTARY MONTH
YEAR MEAN FLOW DAY
FLOW DAY FLOW DAY
FLOW
4 5 12A 1
4512131
27 705.089
27 0.085
4 512A1
451281
4512C
45 12ZZ
38073.0
19.1
3P850.0
512.8
485.88
.198
502.27
5.32
542.38
0.340
389.40
8.83
576.27
0.396
344.25
10.51
519.78
0.255
327.32
6.74
412.43
0.142
347.07
3.88
361.58 333.33
0.085 0.113
335.78 327.32
2.63 2.86
341.81 316.38
0.085 0.085
349.89 403.51
2.58 2.04
310.73 338.V8
0.085 0.113
499.44 555.88
2.46 2.80
382.77
0.113
598.20
3.17
409.39
0.166
415.34
4.46
SUMMARY
TOTAL
SUM OF
DRAINAGE AREA OF LAKE =
SUB—DRAINAGE AREAS =
38850.0
38604.9
TOTAL FLOW IN = 4978.11
TOTAL FLOW OUT = 4960.33
2
73
775.882
25
739.070
3
73
741.901
20
o45.624
4
73
764.555
15
838.178
5
73
492.713
20
421.921
6
73
807.030
10
993.921
7
73
498.376
10
495.545
8
73
‘.07.762
12
515.366
9
73
419.089
10
345.465
10
73
2]2.19
12
220.871
11
73
202.182
II
216.907
12
73
396.436
10
356.792
I
74
736.238
13
792.872
2
74
756.060
17
651.287
2
73
1.133
25
0.255
3
73
1.048
20
0.425
4
73
1.671
IS
0.8 0
5
73
0.057
20
0.028
6
73
0.680
10
0.198
7
73
0.057
10
0.057
8
73
0.028
12
0.028
9
73
0.028
10
0.028
10
73
0.028
12
0.028
11
73
0.028
11
0.028
12
73
0.142
10
0.057
1
74
0.340
13
0.057
2
74
V.70H
17
1.557
-------
TPLBUTARY FLOw 1NFO MATION FU SOUTH CA WL1i’ A
04/27/76
LA
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORET RETRIEvAL DATE 76/04/27
451201
33 20 00.0 080 05 05.0 3
LAKE MOULTRIE
45015 SOUTH CAROLINA
030892
I IEPALES
0023 FEET
2111202
DEPTH CLASS 00
73/03/26 11 20 0000
11 20 0003
11 20 0015
73/07/09 13 10 0000
13 10 0005
13 10 0009
13 10 0015
13 10 0020
73/09/21 10 35 0000
10 35 0005
10 35 0015
00665 32217
PHOS—TOT CPILRPHYL
A
MG/I P UG/L
0.057
0.057
0.059
0.029
0.028
0.024
0.0 25
0.027
0.019
0.018
0.019
DATE
FROM
TO
TIME DEPTH
OF
DAY FEET
WATER
DO
TRANSP
CNDUCTVY
TEMP
SECCRI
FIELD
CENT
MG/L
INCHES
MICROMMO
73/03/26 11 20 0000
11 20 0003
11 20 0015
73/07/09 13 10 0000
13 10 0005
13 10 0009
13 10 00)5
13 10 0020
73/09/21 10 35 0000
10 35 0005
10 35 0015
00400 00410
P11 TALK
CACO3
SU HG/L
15.6
15.7
15.6
31 • 1
30.0
29.9
29.3
29.1
27.8
27e7
27.6
9.3
9.2
7.6
7.6
6.2
5.6
7.2
7,2
25
40
56
75 7.10
75 7.20
75 7.20
78 8.30
70 7.40
70 7.40
72 6.90
71 6.90
83 7.40
82 6.60
82 6.70
DATE
FROM
TO
00610
NH3-N
TOTAL
MG/L
17 0.040
19 0.040
19 0.050
24 0.120
23 0.110
24 0.090
24 0.150
25 0.120
20 0.060
20 0.040
21 0.040
TIME DEPTH
OF
DAY FEET
00625
TOT KJEL
N
MG/I
0.500
0.300
0.300
1.000
0.700
0.600
0.600
0.500
0.900
0.500
0.400
00630
N02&N03
N—TOTAL
MG/I
0.250
0.240
0.240
0.060
0.080
0.110
0.170
0.170
0.050
0.040
0.050
00671
P110 5—0 15
ORTHO
MG/L P
0.0)3
0.0 10
0.0 10
0.006
0.005
0.005
0.005
0.005
0.006
0.005
0.005
9.0
6.8
7.9
-------
STORET RETRIEVAL DATE 76/04/27
451202
33 17 10.0 080 01 45.0 3
LAKE MOULTRIE
45015 SOUTH CAROLINA
030892
1 1EPALES
0028 FEET
2111202
DEPTH CLASS 00
73/03/26 11 55 0000
11 55 0004
11 55 0015
11 55 0025
73/07/09 15 50 0000
15 50 0004
15 50 0015
15 50 0026
73/09/21 11 45 0000
11 45 0005
11 45 0015
ii 45 0022
0.058
0 .051
0.049
0.054
0 .031
0.026
0.026
0.036
0.019
0.018
0.018
0.020
DATE
F RON
TO
TIME DEPTh
OF
DAY FEET
00094
CNDUCTVY
FIELD
MICRONHO
00010
WATER
TEMP
CENT
15.6
15.6
15.3
15.0
31.0
29.9
29 • 5
29.0
28.1
27.7
27.6
27.6
73/03/26 11 55 0000
11 55 0004
11 55 0015
11 55 0025
73/07/09 15 50 0000
15 50 0004
15 50 0015
15 50 0026
73/09/21 11 45 0000
11 45 0005
11 45 0015
11 45 0022
00300 00077
DO TRANSP
SECCHI
MG/L INCHES
27
9.6
9.6
9.8
60
8.0
6.6
4.8
58
7.4
7.0
6.8
00400 00410
PH TALK
CACO3
SU P46/L
70 7.20
70 7.30
70 7.30
70 7.30
79 8.00
70 7.60
70 6.90
75 6.90
83 7.00
84 6.90
82 6.70
82 6.80
DATE
FROM
TO
00610
NH3-N
TOTAL
MG/L
17 0.050
15 0.020
14 0.020
13 0.020
26 0.110
26 0.080
24 0.080
25 0.140
17 0.040
18 0.030
19 0.040
19 0.050
TIME DEPTH
OF
DAY FEET
00625
TOT KJEL
N
M6/L
0 .400
0.300
0.300
0.300
1.300
0.700
0.600
0.600
0.700
0.400
0.300
0 .400
00665 32217
PHOS—TOT CHLRPHYL
A
MG/L P UG/L
00630
N02&N03
N—TOTAL
MG/L
0 .240
0 .240
0.240
0.260
0.080
0.080
0.120
0.140
0.040
0.030
0.030
0.030
00671
PHOS-DIS
ORTHO
MG/L P
0.009
0.008
0.008
0.011
0 .009
0.005
0.004
0 .005
0.005
0.005
0.005
0.003
10.8
7.3
7.7
-------
STORET RETRIEVAL DATE 76/04/27
451203
33 17 37.0 080 07 58.0 3
LAKE MOULTRIE
45015 SOUTH CAROLINA
030892
1 IEPALES
0023 FEET
2111202
DEPTH CLASS 00
73/03/26 12 30 0000
12 30 0003
12 30 0015
12 30 0022
73/07/0 16 50 0000
16 50 0010
16 50 0015
16 50 0020
73/09/21 11 00 0000
11 00 0005
11 00 0013
00665 32217
P 1105—TOT CHLRPHYL
A
P4G/L P IJG/L
0.054
0.053
0.054
0.058
0.0 30
0.0 23
0.024
0.0 29
0.020
0.0 20
0.0 20
DATE
TIME
DEPTH
FROM
OF
TO
DAY
FEET
73/03/26
12 30
12 30
12 30
12 30
0000
0003
0015
0022
73/07/09
16 50
16 50
16 50
16 50
0000
0010
0015
0020
73/09/21
11 00
11 00
11 00
0000
0005
0013
DATE
TIME
DEPTH
FROM
OF
TO
DAY
FEET
00010
00300
00077
00094
00400
00410
00610
00625
00630
00671
WATER
DO
TRANSP
CNDUCTVY
PH
1 ALK
NH3—N
TOT KJEL
N02&N03
PHOS—DIS
TEMP
SECCHI
FIELD
CACO3
TOTAL
N
N-TOTAL
ORTHO
CENT
MG/L
INCHES
MICROMIIO
SU
MG/I
MG/L
MG/L
MG/L
MG/L P
15.5
24
73
7.50
15
0.020
0.500
0.250
0.010
15.6
9.8
73
7.40
15
0.010
0.500
0.240
0.008
15.5
9.6
70
7.40
15
0.020
0.200
0.250
0.009
15.4
9.8
70
7.40
17
0.030
0.200
0.240
0.009
30.9
48
72
8.40
25
0.090
0.900
0.100
0.007
30.0
7.4
72
7.30
27
0.070
0.700
0.090
0.006
29.2
6.2
72
6.90
26
0.090
0.600
0.140
0.005
29.1
5.6
73
6.90
25
0.110
0.700
0.140
0.005
28.1
52
84
7.40
20
0.050
0.700
0.030
0.006
27.7
7.2
85
6.90
18
0.040
0.600
0.050
0.010
27.4
6.4
82
6.80
16
0.050
0.400
0.050
0.007
11.2
8.5
6.8
-------
STORET RETRIEVAL DATE 76/04/27
451204
33 14 40.0 080 00 57.0 3
LAKE MOULTRIE
45015 SOUTH CAROLINA
030891
1 IEPALES
0048 FEET
2111202
DEPTH CLASS 00
73/03/26 13 00 0000
13 00 0005
13 00 0015
13 00 0025
73/07/09 11 15 0000
11 15 0005
II 15 0025
11 15 0045
73/09/21 ii 25 0000
11 25 0005
11 25 0015
11 25 0025
00665 32217
PHOS-TOT CHLRPHYL
A
MG/L P U6I L
0.049
0.047
0.045
0.043
0.028
0.021
3.019
0.028
0.017
0.016
0.016
0.0 17
DATE
FROM
TO
TIME DEPTH
OF
DAY FEET
00010
00300
00077
00094
WATER
DO
TRANSP
CNDUCTVY
TEMP
SECCHI
FIELD
CENT
MG/L
INCHES
MICROMNO
73/03/26 13 00 0000
13 00 0005
13 00 0015
13 00 0025
73/07/09 11 15 0000
11 15 0005
11 15 0025
11 15 0045
73/09/21 11 25 0000
11 25 0005
11 25 0015
11 25 0025
15.4
15.4
15.3
15.3
29.9
29.4
28.8
28.3
28.3
27 • 9
27.8
27.7
22
68
73
9.6
9.6
10.2
7.8
5.4
3.8
7.4
7.0
6.8
00400 00410
PH TALK
C ACO 3
SU MG/L
70 7.40
70 7.40
68 7.40
68 7.40
75 7.60
70 7.40
71 6.20
71 6.10
78 7.60
81 7.00
79 6.9u
78 6.80
DATE
FROM
TO
00610
NH3-N
TOTAL
MG/L
16 0.030
16 0.030
15 0.020
15 0.020
25 0.090
24 0.070
24 0.160
24 0.190
15 0.040
17 0.030
17 0.030
17 0.040
TIME DEPTH
OF
DAY FEET
00625
TOT KJEL
N
MG/L
0.500
0.300
0.300
0.30 0
1.20 0
0.600
0.600
0 .800
0.400
0.40 0
0.40 0
0.400
00630
NO2 NO3
N—TOTAL
MG/L
0.220
0.210
0.220
0.210
0.080
0.070
0.100
0.110
0.020
0.020
0.020
0.030
00671
PHOS—DIS
ORT P lO
MG/L P
0.008
0.007
0 .00 7
0 • 006
0.009
0.004
0.004
0 .006
0 .005
0.004
0.007
0.005
10.3
7.5
10.1
-------
STORET RETRIEVAL DATE 76/04/27
451205
33 17 42.0 079 59 22.0 3
LAKE MOULTRIE
45015 SOUTH CAROLINA
030891
I IEPALES 2111202
0031 FEET DEPTH CLASS 00
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH T ALK NH3—N TOT KJEL N02&N03 PHOS—DIS
FROM OF TEMP SECCHI FIELD CACO3 TOTAL N N—TOTAL ORTPIO
TO DAY FEET CENT MG/L INCHES MICROMMO SU MG/L MG/L MG/L MG/L MG/L P
73/03/26 15 15 0000 15.5 20 70 7.50 12 0.040 0.400 0.210 0.007
15 15 0004 15.5 9.5 70 7.50 12 0.030 0.200 0.200 0.007
15 15 0015 15.5 9.3 70 7.50 12 0.030 0.200 0.210 0.008
15 15 0029 IS.? 9.3 70 7.50 12 0.040 0.300 0.210 0.008
73/01/09 12 15 0000 29.8 40 71 7.90 26 0.080 0.900 0.050 0.004
12 15 0005 29.5 7.6 71 7.40 22 0.110 0.600 0.070 0.004
12 15 0020 29.3 5.8 71 7.00 28 0.090 0.700 0.080 0.010
12 15 0030 28.8 4.7 72 6.80 27 0.140 0.600 0.110 0.004
73/09/21 12 00 0000 27.9 69 79 7.00 17 0.040 0.400 0.020 0.004
12 00 0005 27.8 7.0 80 6.80 15 0.040 0.400 0.020 0.004
12 00 0015 27.7 6.8 82 6.70 15 0.040 0.300 0.020 0.005
12 00 0025 27.7 6.8 81 6.90 15 0.040 0.400 0.030 0.005
00665 32217
DATE TIME DEPTH PHOS-TOT CHLRPHYL
FROM OF A
TO DAY FEET MG/L P UG/L
73/03/26 15 15 0000 0.044 9.4
15 15 0004 0.044
15 15 0015 0.047
15 15 0029 0.049
73/07/09 12 15 0000 0.022 6.6
12 15 0005 0.019
12 15 0020 0.018
12 15 0030 0.021
73/09/21 12 00 0000 3.016 8.4
12 00 0005 0.017
12 00 0015 0.017
12 00 0025 0.018
-------
STORET RETRIEVAL DATE 76/04/27
45 1206
33 22 40.0 080 04 50.0 3
LAKE MOULTRIE
45015 SOUTH CAROLINA
030892
L1EPALES 2111202
0020 FEET DEPTH CLASS 00
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNOUCTVY PH 1 ALK NH3—N TOT KJEL N02&N03 PrtOS—DIS
FROM OF TEMP SECCHI FIELD CACO3 TOTAL N N—TOTAL ORTHO
TO DAY FEET CENT MG/L INCHES MICROMHO SU MG/L. MG/ I . MG/L MG/L P46/ I P
73/03/27 09 00 0000 15.0 30 77 7.60 12 0.060 0.500 0.320 0.010
09 00 0004 15.1 9,7 72 7.70 12 0.030 0.300 0.220 0.006
09 00 0016 15.0 9,4 72 7.70 12 0.040 0.300 0.220 0.006
00665 32217
DATE TIME DEPTH PHOS—TOT CHLRPHYL
FROM OF A
TO DAY FEET MG/L P UG/L
73/03/27 09 00 0000 0.046 12.6
09 00 0004 0.046
09 00 0016 0.053
-------
STORET RETRIEVAL OATE 76/04/27
451207
33 22 42.0 079 59 55.0 3
LA1cE MOULTRIE
45015 SOUTH CAROLINA
030891
11EPALES 2111202
0009 FEET DEPTH CLASS 00
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TINE DEPTH WATER DO TRANSP CNDUCTVY PH T ALK NH3-N TOT KJEL NO2 NO3 PHOS—DIS
FROM OF TEMP SECCHI FIELD CACO3 TOTAL N N—TOTAL ORTHO
TO DAY FEET CENT MG/L INCHES MICRONHO SU MG/L MG/L MG/L MG/L MG/L P
73/03/27 09 30 0000 15.6 24 85 7.70 10 0.050 0.600 0.200 0.008
09 30 0005 15.5 9.6 72 7.60 10 0.040 0.400 0.190 0.005
73/07/09 16 25 0000 31.6 60
16 25 0008 30.0 6.6 70 7.30 26 0.070 0.600 0.080 0.004
73/09/21 15 05 0000 27.8 52 83 7.40 14 0.040 0.400 0.020 0.004
15 05 0005 27.6 7.6 83 6.90 12 0.030 0.400 0.020 0.004
00665 32217
DATE TIME DEPTH PHOS-TOT CHLRPHYL
FROM OF A
TO DAY FEET MG/L P UG/L
73/03/21 09 30 0000 0.046 7.7
09 30 0005 0.042
73/07/09 16 25 0000 8.8
16 25 0008 0.023
73/09/21 15 05 0000 0.018 9.8
15 05 0005 0.018
-------
APPENDIX E
TRIBUTARY DATA
-------
STOPET RETRIEVAL DATE 76/04/27
451241
33 23 00.0 080 Ob 00.0 4
D1VEp SION CANAL
45 ERKELLY Co HWY
1/LAKE MOULTRIE 030892
ST HWY 45 BROG
I1EPALES 2111204
0000 FEET DEPTH CLASS 00
00630 00625 00610 00671 00665
DATE TIME DEPTH N02&N03 TOT KJEL NH3—N PI-IOS—DIS PHOS—TOT
FROM OF N-TOTAL N TOTAL URTHO
TO DAY FEET MG/L MG/L MG/L MG/L P MG/L i
73/02/25 11 30 0.250 0.340 0.030 0.021 0.060
73/03/20 16 55 0.240 0.480 0.019 0.014 0.055
73/04/15 10 10 0.210 0.390 0.026 0.027 0.070
73/05/20 10 0 ) 0.054 0.980 0.058 0.005K 0.030
73/06/10 11 45 0.066 1.600 0.410 0.009 0.030
73/07/10 12 15 0.093 0.200 0.039 0.007 0.035
73/08/12 11 25 0.050 0.460 0.044 0.019 0.027
73/09/10 15 10 0.036 0.440 0.025 0.005K 0.025
73/10/12 15 00 0.140 0.460 0.042 0.006 0.035
73/11/11 10 35 0.060 0.300 0.008 0.008 0.020
73/12/10 12 35 0.020 0.200 0.016 0.005 1 ’ 0.030
74/01/13 11 20 0.320 0.500 0.052 0.024 0.060
74/01/27 12 00 0.276 0.200 0.028 0.016 0.040
74/02/1? 11 05 0.270 0.400 0.029 0.015 0.055
is VALUE KNOWN TO BE
LESS tHAN INDICMEEU
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STORET RETRIEVAL DATE 76/04/27
4512B1
33 26 00.0 080 07 00.0 4
OLD CANAL
45 BERKELEY CO HWY
1/LAKE MOULTR1E 030892
ST HWY 45 th DG 2 M I E OF ADYTOWN
1 IEPALES ?111204
0000 FEET DEPTH CLASS 00
00630 00625 00610 00671 00665
DATE TIME DEPTH N02&N03 TOT KJEL N 43—N PHOS—DIS PHOS-TOT
FROM OF N—TOTAL N TOTAL ORIPIO
TO DAY FEET MG/L MG/L MG/L MG/L P MG/L P
73/02/25 11 45 0.010K 0.150 0.042 0.006 0.015
73/03/20 17 Os 0.010K 0.690 0.030 0.015 0.035
73/04/15 10 ?0 0.010K 0.150 0.010 0.008 0.020
73/05/20 10 15 0.010K 0.130 0.010 0.012 0.030
73/06/10 12 05 0.019 1.300 0.270 0.028 0.080
73/07/10 12 30 0.010K 0.460 0.030 0.015 0.065
73/O8/1 10 35 0.010K 1.050 0.046 0.024 0.055
73/09/10 15 20 0.010K 0.580 0.005K 0.00 5K 0.0 0
73/13/12 15 10 0.025 0.560 0.036 0.015 0.065
73(11/11 10 50 0.012 0.900 0.016 0.016
73/12/10 12 So 0.010K 0.200 0.012 0.020 0.050
74/01/13 10 30 0.024 0.300 0.020 0.020 0.082
74/01/27 10 35 0.016 0.200 0.016 0.016 0.030
74/02/17 11 20 0.032 0.300 0.050 0.005 0.015
K VALUE KNOWN TO t3E
LESS THAN Iii)ICi. TED
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STORET kETRIEVAL DATE 76/04/27
4512C1
33 13 00.0 079 58 30.0 4
TAIL RACE CANAL
‘.5 L3ERKELEY CO HWY
1/LAKE MOULTRIE 030b9 1
US HWY 52 UROG 2 MI NE OF MONCKS CORNEi
1IEPALES 2111204
0000 FEET DEPTH CLASS 00
00630 00625 00610 00671 00665
DATE TIME DEPTH NO2 NO3 TOT KJEL NH3—N PHOS—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL ORTHO
TO UAY FEET MG/L MG/L MG/L MG/L P MG/L ,
73/02/25 10 15 0.240 0.310 0.067 0.018 0.055
73/03/20 15 00 0.190 0.370 0.027 0.010 0.045
73/04/15 09 00 0.230 0.290 0.017 0.012 0.045
73/0 /20 0 30 0.072 0.960 0.100 0.005K 0.030
73/06/10 10 30 0.030 1.600 0.110 0.008 0.030
73/07/10 11 05 0.034 0.580 0.060 0.006 0.030
73/08/12 09 20 0.010K 0.860 0.075 0.011 0.020
73/09/10 14 00 0.012 0.345 0.037 0.017 0.020
73/10/12 14 00 0.032 3.100 0.110 0.005K 0.030
73/11/11 09 0 0.010K 0.300 0.008 0.012 0.015
73/12/10 11 30 0.010K 0.200 0.016 0.008 0.020
74/01/13 09 00 0.084 0.300 0.020 0.005K 0.330
74/01/27 10 20 0.208 0.200 0.032 0.008 0.025
74/02/17 10 00 0.208 0.300 0.030 0.005K 0.030
K V’hLUE IcNOWN Eu BE
LESS TH J INDICMTEL)
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