U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
PACIFIC NORTHWEST ENVIRONMENTAL RESEARCH LABORATORY
An Associate Laboratory of the
NATIONAL ENVIRONMENTAL RESEARCH CENTER - CORVALLIS, OREGON
and
NATIONAL ENVIRONMENTAL RESEARCH CENTER - LAS VEGAS, NEVADA
tJGPO 697-032
-------
REPORT ON
MOORES LAKE
IOT COUNTY
DELAWARE
EPA REGION III
WORKING PAPER No, 238
WITH THE COOPERATION OF THE
DELAWARE DEPARTMENT OF NATURAL RESOURCES
AND ENVIRONMENT CONTROL AND THE
DELAWARE NATIONAL GUARD
JUNE 1975
677
-------
REPORT ON MOORES LAKE
KENT COUNTY, DELAWARE, EPA REGION III
by
National Eutrophication Survey
Water and Land Monitoring Branch
Monitoring Applications Laboratory.
National Environmental Research Center
Las Vegas, Nevada
and
Eutrophication Survey Branch
Pacific Northwest Environmental Research Laboratory
National Environmental Research Center
Corvallis, Oregon
Working Paper No. 238
OFFICE OF RESEARCH AND DEVELOPMENT
U.S. ENVIRONMENTAL PROTECTION AGENCY
June 1975
-------
CONTENTS
Page
Foreword i i
List of Delaware Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Summary . 5
IV. Nutrient Loadings 9
V. Literature Reviewed 13
VI. Appendices 14
-------
ii
FOREWORD
The National Eutrophication Survey was initiated in 1972
in response to an Administration commitment to investigate the
nationwide 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 nonpoint 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
watershed 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
-------
111
planning [§303(e)], water quality criteria/standards review
[§303(c)], clean lakes [§314(a,b)]5 and water quality monitoring
[§106 and §305(b)] activities mandated by the Federal Water
Pollution Control Act Amendments of 1972.
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.
ACKNOWLEDGMENTS
The staff of the National Eutrophication Survey (Office of
Research and Development, IKS. Environmental Protection Agency)
expresses sincere appreciation to the Delaware Department of
Natural Resources and Environmental Control for professional
involvement and to the Delaware National Guard for conducting
the tributary sampling phase of the Survey.
Mr. N. C. Vasuki, Director, Division of Water Pollution
Control, Department of Natural Resources and Environmental
Control, provided invaluable lake documentation and counsel
during the course of the Survey.
Major General Clarence E. Atkinson, the Adjutant General
of Delaware, and Project Officer Colonel Donald S. Robinson,
who directed the volunteer efforts of the Delaware National
Guardsmen, are also gratefully acknowledged for their
assistance to the Survey.
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IV
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF DELAWARE.
LAKE NAME
Kill en Pond
Moores Lake
Noxontown Pond
Silver Lake
Williams Pond
Trussum Pond
COUNTY
Kent
Kent
New Castle
New Castle
Sussex
Sussex
-------
Rodney Village
MOORES POND
Tributary Sampling Site
X Lake Sampling Site
Sewage Treatment Facility
o 1/2 1 i V2 Km.
Mi.
Map Location
-------
MOORES LAKE
STORE! NO. 1005
I. CONCLUSIONS
A. Trophic Condition:
Moores Lake is considered eutrophic based upon
field observations and analysis of Survey data. The
lake is characterized by extremely high chlorophyll a_
levels and algal assay control yields. Nutrient levels
were high (0.245 mg/1 median total phosphorus and 2.400
mg/1 median inorganic nitrogen) and Secchi disc visibility
was low. Phytoplankton genera identified were generally
high pollution-tolerant forms. Problem algal blooms and
unstable water levels have been reported (Ketelle, 1971;
Lesser, 1966); the lake has a record of intensive chemical
weed control programs.
B. Rate-Limiting Nutrient:
Algal assay results indicate that Moores Lake was
limited by available phosphorus levels at the time of
assay sample collection. Spikes with phosphorus, and
nitrogen and phosphorus simultaneously result in increases
in assay yield. Additions of nitrogen alone did not
stimulate a growth response. Lake data concerning the
ratios of avilable nitrogen to orthophosphorus in sampled
waters substantiate these results.
-------
C. Nutrient Controllability:
1. Point Sources - During the sampling year, the mean
annual phosphorus load from point sources (the Camden-
Wyoming wastewater treatment plant) was estimated to
be 40.9% of the total load reaching Moores Lake.
Although total elimination of this point source
input would reduce loading to Moores Lake, reduction
of nonpoint source loading as well as point source
would be needed to substantially upgrade water
quality.
2. Nonpoint Sources - The mean annual phosphorus load
from nonpoint sources was 59.1% of the total load
reaching Moores Lake. The Isaac Branch contributed
54.9% of the total phosphorus load, and the ungaged
drainage areas were estimated to have contributed
4.0%.
The present loading rate of 73.15 g P/m2/yr is
approximately 23 times the "dangerous" (eutrophic)
rate proposed by Vollenweider (in press) for a lake
of such volume and detention time. However, Vollenweider's
model may not apply to water bodies with short hydraulic
retention times, and the mean hydraulic retention time
for Moores Lake is only 2 days. Determination of
surrounding land uses and unknown nonpoint sources
contributing loading is necessary before recommendations
for lake improvement can be proposed.
-------
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
Lake and drainage basin characteristics are itemized
below. Lake surface area was provided by the State of
Delaware; mean depth was estimated based on Survey data;
tributary flow data were provided by the Delaware District
Office of the U.S. Geological Survey (USGS)(outlet
drainage area includes the lake surface area). Mean
hydraulic retention time was obtained by dividing the
lake volume by mean flow of the outlet. Precipitation
values are estimated by methods as outlined in National
Eutrophication Survey (NES) Working Paper No. 175. A
table of metric/English conversions is included as
Appendix A.
A. Lake Morphometry:
1. Surface area: 0.10 km2.
2. Mean depth: 1.1 meters.
3. Maximum depth: ? meters.
4. Volume: 0.110 x 106 m3.
5. Mean hydraulic retention time: 2 days.
-------
B. Tributary and Outlet (see Appendix C for flow data):
1. Tributaries -
Drainage Mean flow
Name area(km?) (m^/sec)
A(2) Isaac Branch 33.7 0.75
Minor tributaries &
immediate drainage - 1.4 0.03
Totals 35.1 0.78
2. Outlet - A(l) Isaac Branch 35.2 0.79
C. Precipitation:
1. Year of sampling: 113.9 centimeters.
2. Mean annual: 107.4 centimeters.
-------
III. LAKE WATER QUALITY SUMMARY
Moores Lake 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 one station on the lake
and one or more depths at that station (see map, page v).
During each visit, depth-integrated samples were collected
from the station for chlorophyll a_ analysis and phytoplankton
identification and enumeration. During the first visit, an
18.9-liter depth-integrated sample was composited for algal
assays. The maximum depth sampled was 0.9 meters. For a
more detailed explanation of NES methods, see NES Working
Paper No. 175.
The results obtained are presented in full in Appendix D
and are summarized in III A for waters at the surface and at
the maximum depth for the sampling site. Results of the
phytoplankton counts and chlorophyll a^ determinations are
included in III B. Results of the limiting nutrient study
are presented in III C.
-------
PARAMETER
A. PHYSICAL AND CHEMICAL CHARACTERISTICS
( 4/10/73 )
MAX
S"ť = 1 DEPTH
RANGE
N* RANGE MEDIAN (METERS)
N*
( 7/20/73 )
MAX
S"ť = 1 DEPTH
RANGE
RANGE MEDIAN (METERS)
N*
( 9/28/73 )
MAX
SŤŤŤ = i DEPTH
RANGE
RANGE MEDIAN (METERS)
0.-1.5 M DEPTH
MAX DEPTH**
2
1
DISSOLVED OXYGEN (MG/L)
0.-1.5 M DEPTH 1
MAX DEPTH** 1
CONDUCTIVITY (UMHOS)
0.-1.5 M DEPTH
MAX DEPTH**
PH (STANDARD UNITS)
0.-1.5 M DEPTH
MAX DEPTH"
2
1
2
1
TOTAL ALKALINITY (MG/L)
0.-1.5 M DEPTH 2
MAX DEPTH" 1
TOTAL P (MG/L)
0.-1.5 M DEPTH
MAX DEPTH**
2
1
DISSOLVED ORTHO P (MG/L)
0.-1.5 M DEPTH 2
MAX DEPTH" 1
N02*N03 (MG/L)
0.-1.5 M DEPTH
MAX DEPTH"
AMMONIA (MG/L>
0.-1.5 M DEPTH
MAX DEPTH"
KJELOAHL N (MG/L)
0.-1.5 M DEPTH
MAX DEPTH"
SECCHI DISC (METERS)
2
1
2
1
2
1
1
13.9- 13.9
13.9- 13.9
10.3- 10.3
10.3- 10.3
142.- 145.
142.- 142.
8.5- 8.5
8.5- 8.5
10.- 19.
10.- 10.
0.195-0.221
0.221-0.221
0.071-0.072
0.072-0.072
2.700-2.800
2.700-2.700
0.090-0.100
0.090-0.090
0.700-0.800
0.800-0.800
0.6- 0.6
13.9
13.9
10.3
10.3
144.
142.
8.5
8.5
15.
10.
0.208
0.221
0.071
0.072
2.750
2.700
0.095
0.090
0.750
0.800
0.6
0.0-
0.9-
0.9-
0.9-
0.0-
0.9-
0.0-
0.9-
0.0-
0.9-
0.0-
0.9-
0.0-
0.9-
0.0-
0.9-
0.0-
0.9-
0.0-
0.9-
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
26.3- 26.3
26.3- 26.3
15.2- 15.2
15.2- 15.2
139.- 139.
139.- 139.
9.2- 9.2
9.2- 9.2
21.- 21.
21.- 21.
0.286-0.286
0.286-0.286
0.051-0.051
0.051-0.051
1.300-1.300
1.300-1.300
0.060-0.060
0.060-0.060
1.800-1.800
1.800-1.800
0.6- 0.6
26.3
26.3
15.2
15.2
139.
139.
9.2
9.2
21.
21.
0.286
0.286
0.051
0.051
1.300
1.300
0.060
0.060
1.800
1.800
0.6
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0
0
0
0
1
1
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
Ť**-***Ť
**_*
**-**ť
100.- 100.
100.- 100.
**ť*-****ť
ťŤť-*ť
36.- 36.
36.- 36.
0.270-0.270
0.270-0.270
0.143-0.143
0.143-0.143
1.960-1.960
1.960-1.960
0.050-0.050
0.050-0.050
1.700-1.700
1.700-1.700
0.9- 0.9
*Ť*
ťť**
100.
100.
ť*ťť
****
36.
36.
0.270
0.270
0.143
0.143
1.960
1.960
0.050
0.050
1.700
1.700
0.9
*"*-**
ť**.
ť-**
0.0- 0.0
0.0- 0.0
*ťť-***
**.***
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
0.0- 0.0
* N = NO. OF SAMPLES
Ť MAXIMUM DEPTH SAMPLED AT EACH SITE
*ťŤ S = NO. OF SITES SAMPLED ON THIS DATE
-------
B. Biological Characteristics:
1. Phytoplankton -
Sampling
Date
04/10/73
07/20/73
09/28/73
Algal
Dominant Units
Genera per ml
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Cyclotella
Melosira
Synedra
Navicula
Asterionella
Other genera
Total
Melosira
Flagellates
Cryptomonas
Scenedesmus
Actinastrum
Other genera
Total
Melosira
Centric Diatoms
Scenedesmus
Cyclotella
Crucigenia
Other genera
4,545
1,673
545
400
218
837
8,218
48,050
6,231
3,755
2,901
2,646
3,155
66,738
54,865
21 ,946
7,659
5,258
3,315
11,344
Total 104,387
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Ortho P
Conc.(mg/l)
0.10
0.15
0.15
0.10
Inorganic N
Conc.(mg/l)
2.996
2.996
3.996
3.996
Maximum yield
(mg/l-dry wt.)
43.1
56.3
66.3
42.9
2. Chlorophyll a_ -
Sampling Station Chlorophyll a^
Date Number (micrograms/liter)
04/10/73 1 16.9
07/20/73 1 92.5
09/28/73 1 134.4
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked:
Spike(mg/l)
Control
0.05 P
0.05 P + 1.0 N
1.00 N
2. Discussion -
The control yield of the assay alga, Selenastrum
capricornutum, indicates that the potential for primary
production in Moores Lake was very high at the time of
sampling. The increase in yield with the addition of
phosphorus as well as the lack of increase when only
nitrogen was added indicates phosphorus limitation.
Maximum growth potential was achieved with the simul-
taneous addition of both phosphorus and nitrogen.
The ratios of the inorganic nitrogen to ortho-
phosphorus for the spring, summer, and fall samples
were respectively 40:1, 27:1, and 14:1, further indi-
cating phosphorus limitation.
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IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Delaware
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 February and March when
two samples were collected. Sampling was begun in April 1973
and was completed in March 1974.
Through an interagency agreement, stream flow estimates
for the year of sampling and a "normalized" or average year
were provided by the Delaware District Office of the USGS for
the tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries
were determined by using a modification of the USGS computer
program for calculating stream loadings. Nutrient loads
indicated for tributaries are those measured minus known
point source loads, if any.
Nutrient loadings for unsampled "minor tributaries and
immediate drainage" ("II" of USGS) were estimated by using
the mean annual concentrations in Isaac Branch at Station
A(2) and mean annual II flow.
The operator of the Camden-Wyoming wastewater treatment
plant provided monthly effluent samples and corresponding
flow data.
-------
10
Waste Sources:
1. Known municipal -
Name
Camden-Wyoming
2. Known industrial - None
Annual Total Phosphorus Loading - Average Year:
1. Inputs -
Source
Population
Served
2,800
Treatment
Extended
Aeration
Mean Flow
(m3/d x 103)
0.942
Receiving
Water
Isaac Branch
a.
b.
c.
Tributaries (nonpoint load) -
A(2) Isaac Branch
Minor tributaries & immediate
drainage (nonpoint load) -
Known municipal STP's -
Camden-Wyoming
d. Septic tanks* -
e. Known industrial - None
f. Direct precipitation** -
Totals
2. Output - Isaac Branch
3. Net annual P accumulation
kg P/yr
4,015
290
2,995
10
7,315
5,825
1,490
% of
total
54.9
4.0
40.9
0.1
0.1
100.0
*Estimate based on 36 lakeside residences.
**Estimated (see NES Working Paper No. 175).
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11
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
% of
Source kg N/yr total
a. Tributaries (nonpoint load) -
A(2) Isaac Branch 91,610 92.0
b. Minor tributaries & immediate
drainage (nonpoint load) - 3,625 3.6
c. Known municipal STP's -
Camden-Wyoming 3,855 3.9
d. Septic tanks * - 385 0.4
e. Known industrial - None
f. Direct precipitation** - 105 0.1
Total 99,580 100.0
2. Outputs - Isaac Branch 99,275
3. Net annual N accumulation - 305
*Estimate based on 36 lakeside residences.
**Estimated (see NES Working Paper No. 175).
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12
D. Mean Annual Nonpoint Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
A(2) Isaac Branch 119 2,718
E. Yearly Loading Rates:
In the following table, the existing phosphorus loading
rates are compared to those proposed by Vollenweider (in press).
Essentially, his "dangerous" rate is the rate at which the
receiving waters would become eutrophic or remain eutrophic;
his "permissible" rate is that which would result in the
receiving water remaining oligotrophic or becoming oligotrophic
if morphometry permitted. A mesotrophic rate would be considered
one between "dangerous" and "permissible."
Total Yearly
Phosphorus Loading Rate
(grams/m2/year)
Estimated loading rate for Moores Lake 73.15
Vollenweider's "dangerous" or eutrophic rate 3.15
Vollenweider1s "permissible" or oligotrophic rate 1.57
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13
V. LITERATURE REVIEWED
Ketelle, Martha J. and Paul D. Uttormark. 1971. "Problem Lakes in
the United States." U.S. Environmental Protection Agency Project
#16010 EHR. University of Wisconsin, Madison, Wisconsin.
Lesser, Charles A. 1966. "Aquatic Vegetation Survey; Federal Aid
in Fish Restoration." Project #F-21-R. Delaware Fish and
Game Commission, Dover, Delaware.
U.S. Environmental Protection Agency. 1975. "National
Eutrophication Survey Methods 1973-1976." Working Paper
No. 175. NERC, Las Vegas, Nevada and PNERL, Corvallis,
Oregon.
Vollenweider, Richard A. (in press). "Input-Output Models."
Schweiz. Z. Hydrol.
-------
VI. APPENDICES
APPENDIX A
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Meters x 3.281 = feet
Cubic meters x 8.107 x 10~4 = acre feet
Square kilometers x 0.3861 = square miles
Cubic meters/sec x 35.315 = cubic feet/sec
Centimeters x 0.3937 = inches
Kilograms x 2.205 = pounds
Kilograms/square kilometer x 5.711 = Ibs/square mile
-------
APPENDIX B
PARAMETRIC RANKINGS OF LAKES
SAMPLED BY NES IN 1973
STATE OF DELAWARE
-------
LAKE DATA .TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
1002 KILLEN POND
1005 MOORES LAKE
1007 NOXONTOWN POND
1008 SILVER LAKE
1009 WILLIAMS POND
1010 TRUSSUM POND
MEDIAN
TOTAL P
0.170
0.245
0.160
0.227
0.042
0.038
MEDIAN
INORG N
1.610
2.400
0.530
4.750
2.010
1.280
500-
MEAN SEC
479.333
472.667
478.833
465.667
449.333
464.000
MEAN
CHLORA
116.200
81.267
37.600
26.700
30.100
5.100
15-
MIN DO
12.000
4.700
10.400
13.000
8.800
5.800
MEDI,
DISS ORTI
0.042
0.071
0.016
0.096
0.010
0.011
-------
PERCENT .OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
1002 KILLEN POND
1005 MOORES LAKE
1007 NOXONTOWN POND
1008 SILVER LAKE
1009 WILLIAMS POND
1010 TRUSSUM POND
MEDIAN
TOTAL P
40 (
0 (
60 (
20 (
80 (
100 (
2>
0)
3)
1)
4)
5)
MEDIAN
INORG N
60 (
20 (
100 (
0 (
40 (
80 (
3)
1)
5)
0)
2)
4)
500-
MEAN SEC
0 (
40 (
20 (
60 (
100 (
80 (
0)
2)
1)
3)
5)
4)
MEAN
CHLORA
0 (
20 (
40 (
80 <
60 (
100 (
0)
1)
2)
4)
3)
5)
15-
MIN
20 (
100 (
40 (
0 (
60 (
80 (
DO
1)
5)
2)
0)
3)
4)
MEDIAN
DISS ORTHO
40 (
20 (
60 (
0 (
100 (
80 (
2)
1)
3)
0)
5)
4)
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TRIBUTARY1 FLOW INFORMATION FOR DELAWARE
10/20/75
LAKE CODE 1005
MOOKES LAKE
SUB-DRAINAGE
TRIBUTARY AREA(SO MI)
1005A1
1005A2
1005ZZ
13.60
13.00
0.60
, OF LAKECSQ MI) 13.60
JAN
34.00
32.50
1.50
FEB
46.80
44.70
2.10
MAR
48.90
46.70
2.20
APR
39.30
37.60
1.70
MAY
25.00
23.90
1.10
NORMALIZED FLOWS(CFS)
JUN JUL AUG
19.10
18.30
0.80
17.00
16.20
0.80
32.
31.
1.
40
00
40
SEP
12.80
12.20
0.60
OCT NOV
14.00 17.50
13.40 16.80
0.60 0.70
DEC MEAN
28.70 27.87
27.40 26.64
1.30 1.23
SUMMARY
TOTAL
SUM OF
DRAINAGE AREA OF LAKE Ť
SUB-DRAINAGE AREAS =
13.60
13.60
TOTAL
TOTAL
FLOW
FLOW
IN =
OUT Ť
335.50
335.50
MEAN MONTHLY FLOWS AND DAILY FLOWS(CFS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY
1005A1
1005A2
1005ZZ
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
6
7
8
9
10
11
12
1
2
3
73
73
73
73
73
73
73
73
73
74
74
74
73
73
73
73
73
73
73
73
73
74
74
74
73
73
73
73
73
73
73
73
73
74
74
74
50.00
24.20
16.50
11.70
16.70
8.90
9.80
10.00
32.00
42.40
35.00
39.20
48.00
23.20
15.70
11.20
15.90
8.60
9.40
9.60
31.00
40.80
33.70
37.70
2.20
1.10
0.70
0.50
0.70
0.40
0.40
0.40
1.40
1.90
1.60
1.70
28
20
26
22
18
9
31
14
2
16
9
10
28
20
26
22
18
9
31
14
2
16
9
10
28
20
26
22
18
9
31
14
2
16
9
10
FLOW DAY
FLOW DAY
FLOW
50.00
22.00
12.00
12.00
6.80
5.40
9.60
9.40
6.00
43.00
37.00
20.00
48.00
22.00
12.00
11.00
6.70
5.20
9.30
9.10
5.80
41.00
36.00
19.00
2.20
1.00
0.50
0.50
0.30
0.20
0.40
0.40
0.30
1.90
1.60
0.90
24
24
24
24
24
24
30.00
43.00
29.00
41.00
1.30
1.70
-------
APPENDIX D
PHYSICAL AND CHEMICAL DATA
-------
STORET RETRIEVAL DATE 75/10/16
100501
39 07 34.0 075 31 10.
MOORES LAKE
10 DELAWARE
00010
DATE TIME DEPTH WATER
FROM OF TEMP
TO DAY FEET CENT
73/04/10 12 10 0000 13.9
12 10 0003 13.9
73/07/20 12 45 0000 26.3
73/09/28 15 50 0000
11EPALES
3
00300
DO
MG/L
10.3
15.2
00077
TRANSP
SECCHI
INCHES
22
24
36
00094
CNOUCTVY
FIELD
MICROMHO
145
142
139
100J
00400
PH
SU
8.50
8.50
9.20
00410
T ALK
CAC03
MG/L
19
10K
21
36
2111202
0003 FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.100
0.090
0.060
0.050
00625
TOT KJEL
N
MG/L
0.700
0.100
1.800
1.700
00630
N02&N03
N-TOTAL-
MG/L
2.800
2.700
1.300
1.960
00671
PHOS-DIS
OHTHO
MG/L P
0.071
0.072
0.051
0.143
DATE
FROM
TO
73/04/10
73/07/20
73/09/28
TIME DEPTH
OF
DAY FEET
12 10 0000
12 10 0003
12 45 0000
15 50 0000
00665
PHOS-TOT
MG/L P
0.195
0.221
0.286
0.270
32217
CHLRPHYL
A
UG/L
16.9
92.5
134.4
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
APPENDIX E
TRIBUTARY AND WASTEWATER
TREATMENT PLANT DATA
-------
STORE! RETRIEVAL DATE 75/10/16
1005A1
39 07 30.0 075 31 00.0
ISAAC BRANCH
10 7.5 DOVER
0/MOORES POND
FOOTBRIDGE AT MAIN SPILLWAY
11EPALES 2111204
4 0000 FEET
DATE
FROM
TO
73/04/28
73/05/20
73/06/25
73/07/23
73/08/20
73/09/09
73/10/31
73/11/14
73/12/02
74/01/16
74/02/09
74/02/24
74/03/10
74/03/24
TIME DEPTH
OF
DAY FEET
11 30
16 30
20 40
11 30
12 10
15 20
10 15
10 15
14 45
15 10
15 30
16 30
16 00
16 30
00630
N02&N03
N-TOTAL
MG/L
2.500
2.600
1.400
1.400
1.200
2.000
2.500
2.760
3.780
4.300
4.000
3.200
2.940
00625
TOT KJEL
N
MG/L
1.230
0.960
1.260
1.600
1.600
1.320
1.550
1.600
0.700
0.400
1.300
1.300
0.600
1.300
00610
NH3-N
TOTAL
MG/L
0.132
0.068
0.035
0.060
0.020
0.035
0.168
0.061
0.136
0.368
0.100
0.120
0.015
0.075
00671
PHOS-DIS
ORTHO
MG/L P
0.090
0.120
0.088
0.080
0.091
0.110
0.210
0.147
0.208
0.105
0.125
0.040
0.110
0.075
00665
PHOS-TOT
MG/L P
0.180
0.245
0.240
0.300
0.300
0.300
0.360
0.260
0.280
0.140
0.165
0.230
0.200
0.195
DEPTH
-------
STORE! RETRIEVAL DATE 75/10/16
1005A2
39 07 30.0 005 32 00.0
ISAAC BRANCH
10 7.5 WYOMING
I/MOORES PONO
US HWY 113 BROG 2.3 MI S OF DOVER
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
73/04/28
73/05/20
73/06/25
73/07/23
73/08/20
73/09/09
73/10/31
73/11/14
73/12/02
74/01/16
74/02/09
74/02/24
74/03/10
74/03/24
TIME DEPTH
OF
DAY FEET
11 45
16 00
16 30
11 20
12 00
15 30
10 28
10 00
15 15
15 10
15 30
16 00
16 30
17 00
00630
N02&N03
N-TOTAL
MG/L
2.700
3.100
2.200
2.200
2.400
2.600
2.520
3.200
4.100
4.600
4.300
3.600
2.640
00625
TOT KJEL
N
MG/L
0.740
1.050
1.100
1.050
0.960
0.820
0.812
0.700
0.750
0.400
3.200
1.000
0.800
1.200
00610
NH3-N
TOTAL
MG/L
0.043
0.077
0.100
0.120
0.058
0.067
0.027
0.035
0.068
0.290
0.270
0.185
0.085
0.040
00671
PHOS-DIS
ORTHO
MG/L P
0.078
0.252
0.315
0.150
0.198
0.378
0.084
0.138
0.370
0.120
0.170
0.220
0.210
0.130
00665
PHOS-TOT
MG/L P
0.160
0.345
0.440
0.290
0.360
0.490
0.155
0.240
0.445
0.160
0.300
0.315
0.290
0.280
-------
STORET RETRIEVAL DATE 75/10/16
100SAA EA100SAA P003800
39 07 16.0 075 33 31.0
CAMDEN-WYOMING
10 7.5 WYOMING
T/MOORES POND
ISAAC BRANCH
11EPALES 2141304
4 0000 FEET DEPTH
DATE
FROM
TO
74/01/08
CPU)-
74/01/08
74/03/13
CP(T>-
74/OZ/13
74/0 3/1 3
CP(T)-
74/03/12
74/04/10
CP(T)-
74/04/10
74/05/13
CP(T)-
74/05/13
74/06/17
CP(T>-
74/06/17
74/07/09
CP-
74/08/08
74/09/09
CP(T)-
74/09/09
74/10/17
cpm-
74/10/17
74/11/11
cpm-
74/11/11
74/12/05
CP ( T ) -
74/12/05
TIME DEPTH
OF
DAY FEET
11 00
16 00
08 00
16 00
08 00
16 00
08 00
16 00
08 00
16 00
08 00
16 00
08 00
16 00
08 00
16 00
08 00
16 00
08 00
16 00
08 00
16 00
08 00
16 00
P
P
P
P
P
P
P
P
P
P
P
P
00630 00625
N02&N03 TOT KJEL
N-TOTAL N
MG/L MG/L
17.000
16.000
7.600
7.300
1.880
0.850
0.320
9.500
9.400
5.600
7.040
0
3
1
3
13
2
1
1
1
1
1
4
.820
.000
.950
.000
.000
.000
.000
.COOK
.700
.600
.800
.400
00610 00671 00665 50051 50053
NH3-N PHOS-DIS PHOS-TOT FLOW CONDUIT
TOTAL ORTHO RATE FLOW-MOD
MG/L MG/L P MG/L P INST MGD MONTHLY
0.040K
0.160
0.066
0.140
0.010
0.050
0.050
0.082
0.063
0.135
0.050K
7.560
7.800
8.700
7.300
7.600
6.800
8.800
8.925
9.600
9.700
8.300
7.
8.
9.
8.
8.
7.
8.
6.
9.
9.
9.
8.
560
500
000
200
300
200
800
300
400
600
700
300
0.282
0.296
0.310
0.260
0.286
0.290
0.218
0.218
0.350
0.320
0.245
0.230
0.220
0.260
0.245
0.25S
0.270
0.265
0.230
0.220
0.285
0.255
0.235
0.245
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/10/16
00630
DATE TIME DEPTH N02&N03
FROM OF N-TOTAL
TO DAY FEET MG/L
75/01/08 08 00 P
CP(T)-
75/01/08 16 00
6.240
5.600
1005AA EA1005AA P003800
39 07 16.0 075 33 31.0
CAMDEN-WYOMING
10 7.5 WYOMING
T/MOORES POND
ISAAC BRANCH
11EPALES 2141204
4 0000 FEET DEPTH
00625
TOT KJEL
N
MG/L
00610
NH3-N
TOTAL
MG/L
00671
PHOS-DIS
ORTHO
MG/L P
00665
PHOS-TOT
MG/L P
50051
FLOW
RATE
INST MGD
50053
CONDUIT
FLOW-MGD
MONTHLY
0.110
8.330
8.000
0.210
0.230
------- |