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
& GPO 697-O32
-------
REPORT
ON
CONENAGO (PINCHOT) LAKE
YORK COUNTY
PENNSYLVANIA
EPA REGION III
WORKING PAPER No, 423
WITH THE COOPERATION OF THE
PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL RESOURCES
AND THE
PENNSYLVANIA NATIONAL GUARD
JUNE, 1975
678
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CONTENTS
Page
Foreword 11
List of Pennsylvania 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 , 13
VI. Appendices 14
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FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration conmitment to investigate the nation-
wide threat of accelerated eutrophication to fresh water 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,bJ],
and water quality monitoring [5106 and §305(b}] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
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iii
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
fresh water lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
ACKNOWLEDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the Pennsylvania Department
of Environmental Resources for professional involvement and to
the Pennsylvania National Guard for conducting the tributary
sampling phase of the Survey.
Walter A. Lyon, Director of the Bureau of Water Quality
Management, Richard M. Boardman, Chief of the Division of Water
Quality, and James T. Ulanoski, Aquatic Biologist of the Division
of Water Quality, 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 Harry J. Mier, Jr., the Adjutant General of
Pennsylvania, and Project Officer Major Ronald E. Wickard, who
directed the volunteer efforts of the Pennsylvania National
Guardsmen, are also gratefully acknowledged for their assistance
to the Survey.
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IV
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF PENNSYLVANIA
LAKE NAME
Allegheny Reservoir
Beaver Run Reservoir
Beltzville
Blanchard Reservoir
Canadohta
Conneaut
Conewago (Pinchot)
Greenlane
Harveys
Indian
Naomi
Ontelaunee
Pocono
Pymatuning Reservoir
Shenango River Reservoir
Still water
Wallenpaupack
COUNTY
McKean, Warren, PA;
Cattaraugus, NY
Westmoreland
Carbon
Centre
Crawford
Crawford
York
Montgomery
Luzerne
Somerset
Monroe
Berks
Monroe
Crawford, PA;
Ashtabula, OH
Mercer
Monroe
Pike, Wayne
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CONEWAGO LAKE
® Tributary Sampling Site
X Lake Sampling Site
/si Drainage Area Boundary
1 2
T~' iMi.
Scale
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CONEWAGO (PINCHOT) LAKE*
STORE! NO. 4226
I. CONCLUSIONS
A. Trophic Condtlon:
Survey data indicate that Conewago Lake is eutrophic. It
ranked twelfth in overall trophic quality when the 17 Pennsylvania
lakes sampled in 1973 were compared using a combination of six
lake parameters**. Eleven of the lakes had less median total
phosphorus, 11 had less and two had the same median dissolved
phosphorus, seven had less median inorganic nitrogen, ten had
less mean chlorophyll a., and 11 had greater mean Secchi disc
transparency. Depletion of dissolved oxygen with depth occurred
at station 1 in July.
Survey limnologists observed rooted aquatic vegetation along
the shoreline near station 2 in July, 1973, and the lake is
reported to support dense growths of unicellular algae and
rooted aquatic plants (Ketelle and Uttormark, 1971).
B. Rate-Limiting Nutrient:
The algal assay results indicate phosphorus limita-
tion in April. The lake data indicate phosphorus limitation
at all sampling times.
* Table of metric conversions—Appendix A.
** See Appendix B.
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C. Nutrient Controllability:
1. Point sources—There were no known phosphorus point
sources during the sampling year except for a few shoreline
septic tanks which were estimated to have contributed a
negligible amount of the total phosphorus load to the lake.
The estimated present phosphorus loading rate of 0.39
9/m2/yr is only 0.03 g/m2/yr greater than that proposed by
Vollenweider (Vollenweider and Dillon, 1974) as an oligotro-
phic rate (see page 12). Nonetheless, Conewago Lake is
eutrophic and has been eutrophic since it was formed by
impoundment of Beaver Creek. Algal and aquatic weed problems
began to occur less than two years after the impoundment
filled with water (Ott, et al., 1973).
Apparently, the existing trophic condition of the lake is
the result of internal recycling of the nutrients originally
present in the fertile farm lands inundated by the impoundment
supplemented by tributary-contributed nutrients. Also, five
sewage lift-stations serve the various facilities in Gifford
Pinchot State Park, and these lift-stations are known to have
overflowed to the lake at least two times when pumping capacities
were exceeded during periods of peak park use (Ulanoski, 1975).
Considering the relatively small tributary nutrient loads, the
-------
lift-station overflows may be a significant source of nutrients,
but further study is needed to determine this.
The morphometry of the lake also is conducive to the
development of nuisance aquatic growths. In the study by Ott,
et al. (op. c1t.), it was determined that 68 percent of the
lake bottom and 892 of the water volume are within the tropho-
genic zone, and 61 percent of the bottom and 84 percent of the
water volume are subjected to almost continuous nutrient
replenishment as a result of circulation.
2. Non-point sources—Essentially all of the phosphorus
input to Conewago Lake during the sampling year was from
non-point sources.
Of the measured tributaries, Beaver Creek contributed a
total of 15.0%. The ungaged drainage area was estimated to
have contributed 40.2% of the total phosphorus load.
The phosphorus exports of the Conewago Lake tributaries
ranged from 6 to 16 kg/km2/yr (see page 12). These export
rates are quite low and are comparable to the rates of other
unimpacted Pennsylvania streams sampled elsewhere.
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometry :
1. Surface area: 1.38 kilometers2.
2. Mean depth: 2.7 meters.
3. Maximum depth: 5.2 meters.
4. Volume: 3.726 x 106 m3.
5. Mean hydraulic retention time: 72 days (based on outlet flow),
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name ajrea (km2)* (m3/sec)*
Beaver Creek 13.4 0.4
Unnamed Stream (B-l) 3.5 <0.1
Unnamed Stream (C-l) 6.7 0.1
Minor tributaries &
immediate drainage - 20.6 0.3
Totals 44.2 0.8
2. Outlet -
Beaver Creek 45.6** 0.6
C. Precipitation***:
1. Year of sampling: 108.9 centimeters.
2. Mean annual: 94.8 centimeters.
t Ulanoski, 1975.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake.
*** See Working Paper No. 175.
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III. LAKE WATER QUALITY SUMMARY
Conewago 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 two
stations on the lake and from a number of depths at each station (see
map, page v). During each visit, a single depth-integrated (near
bottom to surface) sample was composited from the stations for phyto-
plankton identification and enumeration; and during the first 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 5.8 meters at station 1 and 2.4 meters at station 2.
The lake sampling results are presented in full in Appendix D and
are summarized in the following table.
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PARAMETER
TEMP (C)
OISS Out (HG/L)
CNDCTVY
PH (STAND UNITS)
TOT ALK
TOT P (MG/L)
OUTHO P (MG/L>
N02«N03 (MG/L)
AMMONIA (MG/L)
KJEL N (Mb/L)
INOrtG N (MG/L)
TOTAL N (MG/L)
CHLKPYL A (Or,/L)
SECCHI (METERS)
A. SUMMARY OF PHYSICAL AND
1ST SAMPLING ( 4/13/73)
2 SITES
CHEMICAL CHARACTERISTICS FOR PINCHOT LAKE
STORET CODE 4226
2ND SAMPLING ( 7/24/73)
2 SITES
3HU SAMPLING (10/ 2/731
2 SITES
RANGE
10.0
10. a
128.
7.*.
27.
0.017
O.OU7
0.160
0.040
0.400
0.200
0.560
10.4
O.b
- 10.9
- 10.9
- 135.
7.9
29.
- 0.028
- 0.010
- 0.220
- 0.050
- 0.40U
- 0.270
- ti.620
- 13.6
0.8
MEAN
10.5
to. a
131.
7.7
28.
0.023
0.008
0.166
0.04b
0.400
0.232
0.5d6
12.0
0.6
MEDIAN
10. b
10.0
132.
7.B
29.
0.024
0.007
0.190
0.050
0.400
0.240
0,590
12.0
0.6
RANGE
16.4
0.0
133.
6.9
46.
0.024
O.OU6
0.050
0.070
0.500
0.140
0.5BO
13. B
1.0
- 27. b
8.9
- 150.
6.6
57.
- 0.045
- 0.010
- 0.080
- 0.560
- 1.300
- 0.640
- 1.380
- 14.4
1.9
MEAN
24.8
4.8
146.
7.5
50.
0.032
0.008
0.070
0.182
0.920
0.252
0.990
14.1
1.4
MEDIAN
26.2
5.0
149.
7.2
49.
0.027
0.008
0.070
0.090
0.900
0.170
0.970
14.1
1.4
MANGE
19.3
4.8
128.
6.7
51.
0.041
0.013
0.040
0.260
1.200
0.300
1.260
13.6
0.9
- 19.6
5.2
- 130.
7.u
52.
- o.ose
- 0.017
- 0.060
- 0.320
- 1.400
- 0.380
- 1.450
- 17.9
2.1
MEAN
19.5
5.0
129.
6.8
52.
0.049
0.014
0.047
0.282
1.300
0.330
1.347
15.7
1.5
MEDIAN
19.5
5.0
128.
6.8
5Z.
0.049
0.013
0.045
0.275
1.300
0.320
1.340
15.7
1.5
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B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
04/13/73
07/24/73
10/02/73
Dominant
Genera
1. Dinobryon
2. Flagellates
3. Cryptomonas
4. Schoederia
5. Fragilaria
Other genera
Total
1. Arthrospira
2. Melosira
3. Flagellates
4. Closterium
5. Trachelomonas
Other genera
Total
1. Flagellates
2. Anabaena
3. Oocystis
4. Cyclotella
5. Coelastrum
Other genera
Algal Units
per ml
8,135
5,211
601
565
209
49
49
221
Total
1,694
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8
Sampling
Date
04/13/73
07/24/73
10/02/73
Station
Number
01
02
01
02
01
02
2. Chlorophyll a_ -
Chlorophyll a^
(ug/1)
13.6
10.4
14.4
13.8
13.6
17.9
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
Ortho P Inorganic N Maximum yield
Spike (mg/1) Cone, (mg/1) Cone, (mg/1) (mg/1-dry wt.)
Control
0.050 P
0.050 P + 1.0 N
1.0 N
2. Discussion -
The control yield of the assay alga, Selenastrum capri-
cornutum, indicates that the potential primary productivity
of Conewago Lake was moderate at the time the sample was
collected. There was a significant increase in yield when
orthophosphorus was added, but there was no change in yield
when only nitrogen was added. Based on these results, phos-
phorus limitation is indicated.
The lake data also indicate phosphorus limitation; i.e.,
the mean N/P ratios were 24/1 or greater on all sampling
occasions, and phosphorus limitation would be expected.
0.012
0.062
0.062
0.012
0.200
0.200
1.200
1.200
0.2
5.8
20.9
0.2
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IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Pennsylvania
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 col-
lected. Sampling was begun in May, 1973, and was completed in April,
1974.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the Pennsylvania District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were deter-
mined by using a modification of a U.S. Geological Survey computer
program for calculating stream loadings*. 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 exports, in kg/km2/year, at stations A-l, B-l, and C-l and
multiplying the means by the ZZ area 1n km2.
See Working Paper No. 175.
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10
A. Waste Sources:
1. Known municipal - None
2. Known industrial - None
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries {non-point load) -
Beaver Creek 215 40.2
Unnamed Stream (B-l) 20 3.7
Unnamed Stream (C-l) 60 11.2
b. Minor tributaries & immediate
drainage (non-point load) - 215 40.2
c. Known municipal STP's - None
d. Septic tanks* - insignificant
e. Known industrial - None
f. Direct precipitation** - 25 4.7
Total 535 100.0
2. Outputs -
Lake outlet - Beaver Creek 465
3. Net annual P accumulation - 70 kg.
* Only four shoreline dwellings are served by septic tanks (Ulanoski,
1975); see Working Paper No. 175.
** See Working Paper No. 175.
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C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source y_r total
a. Tributaries (non-point load) -
Beaver Creek 9,575 40.4
Unnamed Stream (B-l) 770 3.3
Unnamed Stream (C-l) 2,650 11.2
b. Minor tributaries & Immediate
drainage (non-point load) - 9,140 38.6
c. Known municipal STP's - None
d. Septic tanks* - 45 0.2
e. Known industrial - None
f. Direct precipitation** - 1.490 6.3
Total 23,670 100.0
2. Outputs -
Lake outlet - Beaver Creek 19,180
3. Net annual N accumulation - 4,490 kg.
* Only four shoreline dwellings are served by septic tanks (Ulanoski,
1975); see Working Paper No. 175.
** See Working Paper No. 175.
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12
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Beaver Creek 16 715
Unnamed Stream (B-l) 6 220
Unnamed Stream (C-l) 9 396
E. Yearly Loading Rates:
In the following table, the existing phosphorus loading
rates are compared to those proposed by Vollenweider (Vollen-
weider and Dillon, 1974). Essentially, his "dangerous" rate
is the rate at which the receiving water 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".
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 0.39 0.05 17.2 3.3
Vollenweider loading rates for phosphorus
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Conewago Lake:
"Dangerous" (eutrophic rate) 0.72
"Permissible" (oligotrophic rate) 0.36
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13
V. LITERATURE REVIEWED
Ketelle, Martha J., and Paul D. Uttormark, 1971. Problem lakes
in the United States. EPA Water Poll. Contr. Res. Ser.,
Proj. #16010 EHR, Washington, D.C.
Ott, A. N., J. L, Barker, and D. J. Growitz; 1973. Physical,
chemical, and biological characteristics of Conewago Lake
drainage basin, York County, Pennsylvania. Water Res. Bull.
#8, PA Dept. Env. Resources and U.S. Geological Survey,
Harrisburg.
Ulanoski, James, 1975. Personal communication (lake morphometry;
shoreline septic tanks; park waste treatment facilities). PA
Dept. Env. Resources, Harrisburg.
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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VII. APPENDICES
APPENDIX A
CONVERSION FACTORS
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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
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APPENDIX B
LAKE RANKINGS
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LAKES RANKED BY INDEX NOS.
WANK LAKE CODE LAKE NAME
1 4224
2 4220
3 4222
4 4228
5 4227
6 4223
7 3641
8 4229
9 4221
10 4219
11 4204
12 4226
13 4213
14 4216
15 4225
16 4201
17 4207
LAKE NAOMI
BELTZVILLE DAM
HARVEY'S LAKE
STILLWATER LAKE
POCONO LAKE
INDIAN LAKE
ALLEGHENY RESERVOIR
LAKE WALLENPAUPACK
CANADOHTA LAKE
BEAVER RUN RESERVOIR
CONNEAUT LAKE
PINCHOT LAKE
PYMATUNING RESERVOIR
SHENANGO RIVER RESERVOIR
ONTELAUNEE DAM
BLANCHARO RESERVOIR
GREENLANE DAM
INDEX NO
445
423
413
401
389
388
385
371
369
360
307
256
206
157
101
85
53
-------
PERCENT OF LAKES WITH HIGHER VALUES {NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
3641 ALLEGHENY RESERVOIR
4?Q1 8LANCHARD RESERVOIR
4204 CONNEAUT LAKE
4307 GREENLANE 0AM
4213 PYMATUNIN& RESERVOIR
4216 SHENANGO RIVER RESERVOIR
4219 BEAVER RUN RESERVOIR
4220 BELTZVILLE DAM
4221 CANADOHT'A LAKE
4232 HARVEY'S LAKE
4223 INDIAN LAKE
4224 LAKE NAOMI
4225 ONTELAUNEE DAM
4226 PINCHOT LAKE
4227 POCONO LAKE
4228 STILLWATEW LAKE
4229 LAKE WALLENPAUPACK
MEDIAN
TOTAL P
56 <
13 <
44 (
6 (
0 (
19 (
94 (
88 (
50 <
63 (
100 (
81 (
25 <
31 t
38 (
72 <
72 (
9)
2)
7)
1)
0)
3)
15)
14)
8)
10)
16)
13)
4)
5)
6)
11)
11)
MEDIAN
INORG N
38 (
13 (
63 <
6 (
72 (
44 (
19 t
25 I
97 <
81 <
31 (
88 (
0 (
56 (
97 <
72 <
50 (
6)
2)
10)
1)
11)
7)
3)
4)
15)
13)
5)
14)
0)
9)
IS)
11)
8)
500-
MEAN SEC
63 (
25 (
69 (
19 (
6 (
13 C
88 (
94 <
56 (
100 (
75 t
44 (
0 (
31 (
50 (
38 (
81 (
10)
4)
11)
3)
1)
2)
14)
15) .
9)
16)
12)
7)
0)
5)
8)
6)
13)
MEAN
CHLORA
100 (
31 <
56 1
13 <
0 <
6 1
81 <
94 1
19. 1
63 1
75 I
69 I
44
38
88
25
50
: 16)
; 5)
; 9)
; 2)
! 0)
: i)
: 13)
I 15)
[ 3)
[ 10)
! 12)
1 ID
( 7)
( 6)
( 14)
( 4)
( 8)
15-
MIN 00
69 (
3 (
34 <
3 (
100 (
47 <
19 1
34 <
59. 1
47 1
19 \
88 I
19 <
81 i
75
94
59
ID
! 0)
1 5)
0)
16)
7)
; 2)
; 5>
; 9>
: 7)
I 2)
1 14)
I 2)
I 13)
( 12)
( 15)
( 9)
MEDIAN
D1SS P
59 (
0 <
41 (
6 I
28 (
28 (
59 (
88 (
88 (
59 (
88 (
75 (
13 (
19 (
41 (
100 I
59 (
8)
0)
6)
1)
4)
4)
8)
13)
13)
8)
13)
12)
2)
3)
6)
16)
8)
INDEX
NO
385
85
307
53
206
157
360
423
369
413
388
445
101
256
389
401
371
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LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
3641 ALLEGHENY RESERVOIR
4201 BLANCHARD RESERVOIR
4204 CONNEAUT LAKE
4207 GMEENLANE DAM
4213 PYMATUNING RESERVOIR
4216 SHENANGO RIVER RESERVOIR
4219 BEAVER RUN RESERVOIR
4220 BELTZVILLE DAM
4221 CANADOHTA LAKE
4222 HARVEYiS LAKE
4223 INDIAN LAKE
4224 LAKE NAOMI
4Z2S CNTELAUUEE DAM
4226 PINCHOr LAKE
4227 POCONO LAKE
4228 STILLWATER LAKE
4229 LAKE WALLENPAUPACK
MEDIAN
TOTAL P
0.016
0.064
0.023
0.066
0.070
0.058
0.009
0.010
0.020
0.015
0.008
0.014
0.040
0.027
0.024
0.015
0.015
MEDIAN
INOftG N
0.380
1.300
0.185
1.475
0.180
0.340
0.835
0.815
0.130
0.160
0.520
0.135
2.150
0.245
0.130
0.180
0.250
500-
MEAN SEC
414.250
453.143
402.000
460.222
467.750
463.555
384.833
362.444
436.000
338.000
400.222
443.333
470.667
453.000
438.800
449.000
394.583
MEAN
CHLORA
3.700
15,187
7.567
24.011
56.333
26.800
5.183
4.856
19.167
5.967
5.211
5.533
11.763
13.950
4.980
18.233
9.617
15-
MIN DO
13.800
14.900
14,600
14.900
7.700
14.500
14.800
14.600
14.100
14.500
14.800
3.000
1<*.800
11.500
13.200
7.900
14.100
MEDIAN
DISS P
0.006
0.046
0.007
0.020
0.008
0.008
0.006
0.005
0.005.
0.006
0.005
O.OOS
0.011
0.008
0.007
0.004
0.006
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
FLU*' iNfOKMATIUN FUK HENNSYLVANIA
1/27/75
LAKE COUE
CONti*A&U LAKt
TOTAL DRAINAGE A*EA OF LAKtISCJ KM)
45.6
SUB-DRAINAGE
THI8UTARY AR£A(SO Krt)
4226A1
4226A2
FEri
MAK
AHK
MAf
NORMALIZED FLOWS(CMS)
JUM JUL AUG SEP
OCT
NOV
DEC
MEAN
4226C1
13.4
45.6
3.5
6.7
22.0
0.45
0.71
O.OJ
0.12
0.34
0.71
0.93
0.0-+
0.16
0.45
1.25
1.27
0.05
0.21
0.62
0./4
0.96
0.04
0.16
0.45
u.37
O.b2
0.03
0.10
0.2B
0.14
0.37
0.02
U.o6
o.ie
0.06
0.22
0.01
0.04
0.10
O.Ob
0.26
0.01
0.05
0.13
0.06
0.22
0.01
0.04
0.11
0.07
0.25
0.01
0.04
0.12
o.ia
0.42
0.02
0.07
0.20
0.28
0.54
0.02
0.09
0.26
0.36
0.56
0.02
0.09
0.27
TOTAL UHAINAGE ArtEA OF LAKE =
SUM OF SUH-DHAINAGE AHEAS =
MEAN MONTHLY FLOWS AND UAILY FLOWS(CMi)
TRIBUTARY MONTH
4226A1
MEAN FLOW DAY
4226A?
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
73
73
73
73
73
73
73
73
74
74
74
74
73
73
73
73
73
73
73
73
7«+
0.74
0.40
0.09
0.03
0.23
0.09
0.04
1.10
1.05
0. Iti
U.45
1.25
l.UH
0.71
0.26
0.12
0.46
u.25
0.15
1.44
1.39
O.tO
Li. 76
1 .:>•*
19
15
14
11
b
b
5
1
26
23
23
20
19
Is
It
11
t)
b
5
1
2b
23
23
2u
0.21
U.17
0.04
U.Ul
0.00
U.09
O.Ob
0.03
0.74
0.57
O.fe
0.40
0.45
0.*.0
o.lb
0.06
O.OJ
0.27
u.22
0.12
1.10
0.91
O.H2
0.71
SUMMANY
45.6
45.&
TOTAL FLO* IN
TOTAL FLUW OUT
DAY
FLOW HAY
FLOW
9.06
6.78
-------
TKIdUTArMC FLO* INFORMATION FOR
1/27/75
LAKE COUE 4??6
CllNE'-VAtG LAKE
MEAN MONTHLY FLUWi ANJ UA1LY
4226sll
4226Ci
MOIMlri YEAK
5
6
7
8
9
10
11
12
1
2
3
it
5
6
7
8
9
10
11
12
1
2
3
4
S
6
7
a
9
13
11
12
1
2
2
3
73
73
73
73
73
73
73
73
74
74
74
73
73
73
73
73
73
73
73
74
7*
74
73
73
73
7J
73
73
74
74
74
itt'AN FLOW OAf
G.US
u.03
0.01
O.Ul
0.0?
0.01
0.01
0.3*
O.Ofe
0.02
O.UJ
0.07
0.18
0.12
O.J4
0.02
O.OB
O.u4
0.03
0.24
U.23
0.07
U.13
0.26
d.51
0.34
0.12
0.06
0.23
a. 12
0.07
0.71
0.68
0.1<>
C.19
0.37
u.7b
iy
15
it
11
ti
6
5
1
26
23
23
20
IV
15
14
It
8
6
5
1
26
23
23
20
19
15
14
11
0
b
5
1
26
23
23
23
20
KLOrt DAY
0.02
0.02
0.01
O.OU
0.00
O.Ul
U.01
0.01
t>.05
0.04
0.03
0.03
0.07
0.07
0.03
U.01
o.oi
o.o5
0.04
U.02
U.la
0.15
0.13
0.12
0.22
0.1-J
O.i)7
0.03
0.02
0.13
0.11
0.06
0.54
0.4U
0.34
FLO* OAY
FLOW
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STOrttT RETRIEVAL UATt 75/01/27
422601
40 05 25.0 076 52 24.
PliMCHOT LAKt
42133 PENNSYLVANIA
DATE
FROM
TO
73/04/13
73/07/2*.
73/10/02
TIME DEPTH
OF
DAY FEET
14 50 UOOO
14 50 0004
14 50 0011
15 15 0000
15 15 0005
15 15 0011
15 15 0019
10 00 0000
10 00 0010
10 00 OOU
00010
MATEK
TEMP
CfcNT
10.9
10.7
10.6
27.1
26.7
25.5
16. 4
19.4
19. S
19.3
00300
00
HG/L
10. 8
10.8
6.4
3.5
0.0
5.2
5.2
4.ri
11EPALES
00301)
00
MG/L
10. 8
10. 8
6.4
3.5
0.0
5.2
5.2
4.tl
00077
TRrtNSP
SECCHI
INCHES
30
74
84
U0094
CNOUCTVY
F1ELO
MICrtOMHO
135
132
130
149
149
150
133
128
128
128
3
00400
PH
bU
7.8u
7.80
7.40
7.70
7.10
6.90
7.00
6. SO
6.80
00410
T ALK
CACQ3
MG/L
29
29
29
46
51
57
51
51
52
2111202
0021
00610
NH3-N
TOTAL
MG/L
O.OSO
0.040
0.040
0.070
0.120
O.S60
U.280
0.270
0.260
FtET DEPTH
00625
TOT KJEL
N
MG/L
0.400
0.400
0.400
1.000
0.900
1.300
1.400
1.300
1.300
00630
N02&N03
N-TUTAL
MG/L
0.190
0.160
0.160
0.070
0.050
0.080
O.OSO
0.040
0.040
00671
PHOS-DIS
OUT HO
MG/L P
0.010
0.007
0.007
0.010
0.008
0.007
0.013
0.013
0.017
OU665
DATE TIME DEPTH HHOS-TOT
FHQM OF
TO DAY FEET MG/L P
73/04/13 14 SO tfOOO
14 50 0004
14 50 0011
73/07/24 15 IS 0000
15 IS 0011
Ib 15 0019
73/10/02
10 00 0000
10 OC OU10
10 00 UOlii
0.017
U.023
O.U24
0.027
u.036
0.027
O.U41
32217
CHLRPhYL
A
UG/L
13.6
14.4
13.6
0.042
-------
STOKET KETWIEVAL DATE 75/01/27
422602
tO 04 33.0 076 53 34.0
PINCHOT LAKE
42133 PENNSYLVANIA
00010
FROM
TO
73/04/13
73/07/24
73/10/02
DATE
FPOM
TO
73/04/13
73/07/24
73/10/02
OF
DAY FEET
15 20 00i>0
15 20 0006
15 50 0000
15 50 OOOU
10 25 0000
10 25 0005
TIME DEPTH
OF
UAY fEET
15 20 0000
15 20 0006
15 50 0000
15 50 0008
10 25 0000
TEMP
CENT
10.1
10.0
27.6
2b.8
19.6
19.5
J0665
PHOS-TOT
MG/L P
0.02d
0.024
0.024
0.045
0.057
MG/L
10.9
8.9
5.0
4.8
32217
ChLRPHYL
A
UG/L
lif.4
13. b
17.9
00300 00077 00094
DO THANSP CNDUCTVY
SECCH1 FIELD
INCHES MICROMHO
IB
40
36
128
132
150
130
129
11EPALES
3
00400
PH
SU
7.90
7.8U
8.60
7.20
6. 70
00410
T ALK
CAC03
MG/L
28
27
49
49
52
2111202
0010
00610
NH3-N
TOTAL
MG/L
O.ObO
0.050
0.070
0.090
0.320
FEET
00
TOT 1
N
MG
0
0
0
0
1
DEPTH
0.400
0.400
0.900
0.500
200
00630
N02&N03
N-TOTAL
MG/L
0.200
0.220
0.070
0.080
0.060
00671
PHOS-DIS
OHTHO
MG/L P
0.009
0.007
0.006
0.008
0.014
-------
APPENDIX E
TRIBUTARY DATA
-------
STORE! *ETHIEVAL DATE 7S/02/J3
4226A1
40 04 2b.O 076 54 20.0
bEAVEK CrtEEK
*»2011 7.b WELLbVlLLE
I/CONEatAOG LAKE
brttjG 212 NEAR MOUTH 1 MI S OF KOSSVlLLE
HEPALES 2111204
4 0000 FEET DEPTH
DATE
F«UM
TO
73/OS/19
73/Ub/lb
73/07/14
73/Oe*/ll
73/09/os
73/10/06
7J/11/03
73/12/01
74/01/26
74/02/09
7-/U2/23
7<+/03/09
74/03/23
74/04/20
00630 00625
TIME DEPTH N02S.N03 TOT KJEL
OF N-TUTAL N
UAY FEET
U9
09
0V
09
U9
Ort
OB
09
08
09
09
08
03
oa
23
30
55
29
Ss
55
55
55
30
50
00
45
30
?0
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.140
.2130
.220
.120
.017
.G3t>
.060
.112
.490
.440
.310
.240
.276
.176
MG/L
0.
6.
0.
1.
0.
0.
0.
0.
0.
0.
0.
1.
0.
0.
260
800
700
690
500
300
550
600
1CGK
300
BOO
000
600
200
00610 00671 0066S
NH3-N PhOS-DIS PriOb-TOT
TOTAL ORTHO
MG/L
0.
v).
0.
0.
0.
0.
0.
0.
0.
0.
0.
J.
0.
0.
009
340
092
060
036
042
020
208
040
020
02l)
338
025
015
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
G.
0.
0.
o.
0.
0.
p
007
Oil
015
010
008
010
U08
OOto
008
00 3K
010
005
OOSK
005K
MG/L P
0.015
0.045
0.030
0.015
O.U20
0.040
0.020
0.03b
0.010
0.005K
0.03u
0.005K
0.01s
0.02i>
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
bTOKET KtlHIEVAL DATE 75/02/u3
4226A2
40 05 16.0 076 52
bEAVEK Crit£K
42 7.b OOVE«
0/CONEWAGO LAKE
StC MWY d«DG I MI
11EPALES
15.0
S OF MAYTOWN
2111204
0000 FEET DEPTH
DATE
FttUM
TO
73/05/19
73/06/15
73/07/14
73/08/11
73/09/08
73/10/06
7J/11/03
73/12/01
74/01/26
74/02/09
74/02/23
74/03/09
74/03/23
74/04/20
00630 00625
TIME DEPTH r*02i»N03 TOT KJEL
OF N-TOTAL N
DAY FEET
09
09
10
09
10
09
08
10
08
09
09
09
1)8
08
51
00
15
39
20
20
30
25
50
30
35
40
55
00
MG/L
0.
0.
0,
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
042
023
no
052
058
400
216
232
430
336
3bO
370
320
184
MG/L
0.
0.
0.
0.
0.
0.
0.
1.
0.
1.
1.
1.
I.
0.
430
500
420
880
720
750
600
000
500
100
500
900
100
400
00610 00671 00665
MH3-N PHOS-01S PHOS-TOT
TOTAL ORTrtD
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.021
.026
.126
.086
.044
.240
.056
.336
.036
.110
.090
.175
.055
.065
MG/L
0.
0.
0.
0*
0.
0.
0.
0.
c.
0.
0.
0.
0.
o.
p
005
006
010
005K
009
009
008
OOSK
008
005K
OOSK
005
005K
OOS
MG/L P
O.U20
0.025
0.020
0.040
0.030
0.035
0.045
O.Olu
0.015
0.035
0.010
O.UJO
O.U35
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET KtfKIEVAL DATE 75/02/03
4226B1
40 04 40.0 076 54 <;0.
UNNAMED STREAM
42 7.5 OOVEK
T/CONEWAGO LAKE
RD t>6032 6HIOGE
11EPALES
4
DATE
FRUM
TO
7j/0b/19
73/06/15
73/07/l<*
73/08/11
73/09/08
73/10/06
7J/11/03
73/12/01
74/U1/26
74/02/09
74/02/Z3
74/03/0^
74/OJ/23
74/0
-------
STOKtT KETMIEVAL OATt 7b/02/u3
4226C1
tO 04 45.0 076 54 30.0
UNNAMED STrtEAM
42 7.5 OUVtK
T/COlME*AbO LAKE
UIMDRY *0 CULVEKT 1 MI NNE OF KOSSEVILLE
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FrtOM
TO
73/05/19
,73/0 7/J 4
73/Ob/ll
73/09/OH
73/10/06
73/11/03
73/12/01
74/01/26
7i*/02/0y
7^/02/23
7^/03/04
7^/03/23
7^/at/20
00630 00625
TIME DEPTH 1-J02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
09
10
09
10
09
08
10
08
09
09
09
0«
08
37
15
2
0.010
0.020
0.040
0.030
0.055
0.005K
0.035
0.005
0.005K
0.040
0.005
0.015
0 . 0 1 5
K VALUE KNOWN TO BE
LESS THAN INDICATED
------- |