U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
SCHROON LAKE
ESSEX AND WARREN COUNTIES
NEW YORK
EPA REGION II
WORKING PAPER No, 169
PACIFIC NORTHWEST ENVIRONMENTAL RESEARCH LABORATORY
An Associate Laboratory of the
NATIONAL ENVIRONMENTAL RESEARCH CENTER - CORVALLIS, OREGON
and
NATIONAL ENVIRONMENTAL RESEARCH CENTER - LAS VEGAS, NEVADA
iTGPO 697.03Z
-------
REPORT
ON
SCHRQON LAKE
ESSEX AND WARREN COUNTIES
NEW YORK
EPA REGION II
WORKING PAPER No, 169
WITH-THE COOPERATION OF THE
NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION
AND THE
NEW YORK NATIONAL GUARD
NOVEMBER, 1974
-------
CONTENTS
Page
Foreword ii
List of New York 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 4
IV. Nutrient Loadings 9
V. Literature Reviewed 14
VI. Appendices 15
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11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to 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,b)],
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
-------
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 New York Department of
Environmental Conservation for professional involvement and to
the New York National Guard for conducting the tributary sampling
phase of the Survey.
Henry L. Diamond, Commissioner of the New York Department of
Environmental Conservation, and Leo J. Hetling, Director, and
Halo G. Carcich, Senior Sanitary Engineer, Environmental Quality
Research, Department of Environmental Conservation, provided
invaluable lake documentation and counsel during the Survey. .
Major General John C. Baker, the Adjutant General of New York,
and Project Officer Lieutenant Colonel Fred Peters, who directed .
the volunteer efforts of the New York National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.
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IV
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF NEW YORK
LAKE NAME
Allegheny Reservoir
Black
Canandaigua
Cannonsville
Carry Falls
Cassadaga
Cayuga
Champlain
Chautauqua
Conesus
Cross
Goodyear
Huntington
Keuka
Long
Lower St. Regis
Otter
Owasco
Raquette Pond
Round
Sacandaga Res.
Saratoga
Schroon
Seneca
Swan
Swinging Bridge Res.
COUNTY
Cattaraugas, NY; McLean,
Warren, PA
St. Lawrence
Ontario
Delaware
St. Lawrence
Chautauqua
Seneca, Tompkins
Clinton, Essex, NY; Addison,
Chittenden, Franklin, VT
Chautauqua
Livingston
Cayuga, Onondaga
Otsego
Sullivan
Ontario
Hami1 ton
Franklin
Cayuga
Cayuga
Franklin
Saratoga
Fulton, Saratoga
Saratoga
Essex, Warren
Seneca, Schyler, Yates
Sullivan
Sullivan
-------
-44° 05'
-43° 55'
-43° 45'
73° 55'
Map Location
New
Pottersville
SCHROON LAKE
® Tributary Sampling Site
X Lake Sampling Site
Direct Drainage Area Boundary
5M1.
Scale
73° 35'
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SCHROON LAKE
STORE! NO. 3634
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Schroon Lake is oligotrophic. Of
the 26 New York lakes studied, none had lower mean total phos-
phorus, only one had less mean inorganic nitrogen, and none had
less mean chlorophyll a_.
Survey limnologists noted that Schroon Lake exhibited high
clarity and was clear of algal blooms at all sampling times.
B. Rate-Limiting Nutrient:
Algal assay results show that Schroon Lake was phosphorus
limited at the time the assay sample was collected. The lake
data also indicate phosphorus limitation at all sampling times
(N/P ratios were greater than 36/1, and phosphorus limitation
would be expected).
C. Nutrient Controllability:
1. Point sources—It is estimated that point sources accounted
for only 3% of the total phosphorus load to Schroon Lake during the
sampling year. The calculated input phosphorus loading rate was
less than that proposed by Vollenweider (in press) as "permissible"
(i.e., an oligotrophic rate—see page 13); and it might be con-
cluded that point-source control of phosphorus would have little
-------
effect on the trophic condition of the lake. However, during
the sampling year some 17,800 pounds more phosphorus and 260,500
pounds more nitrogen were measured leaving the lake than can be
accounted for by all measured and estimated inputs. While nitrogen
loss can occur under certain conditions, with losses of both pri-
mary nutrients at the indicated magnitude, it is most probable that
unknown and unmeasured direct-discharge nutrient inputs were the
cause of the imbalance.
Now, if the amount of phosphorus measured leaving the lake was
equivalent to the sum of the actual inputs, then Schroon Lake
received a phosphorus load at a rate of 7.8 Ibs/acre/yr or 0.88 g/
2 2
m /yr. This rate is well above the oligotrophic rate of 0.56 g/m /
yr and, if continued, would affect the existing trophic condition
of the lake.
It is apparent that a more detailed study of Schroon Lake
nutrient sources is needed to provide a basis for assessment of
nutrient controllability.
2. Non-point sources (see page 13)--The phosphorus exports of
the Schroon Lake tributaries were relatively low and compare well
with the exports of unimpacted tributaries studied elsewhere in
New York (e.g., Sacandaga Reservoir tributaries*).
In all, it is estimated that non-point sources contributed 97%
of the total phosphorus load to Schroon Lake during the sampling
year.
* Working Paper No. 167.
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometry :
1. Surface area: 4,128 acres.
2. Mean depth: 47 feet.
3. Maximum depth: 152 feet.
4. Volume: 194,016 acre/feet.
5. Mean hydraulic retention time: 153 days.
B. Tributary and Outlet:
(See Appendix A for flow data)
1. Tributaries -
Name Drainage area* Mean flow*
Schroon River 173.0 mi? 257.6 cfs
Rogers Brook 8.7 mi~ 13.0 cfs
Horseshoe Pond Brook 2.5 mip 3.7 cfs
Unnamed Brook (F-l) 2.5 mi~ 3.7 cfs
Mill Brook 24.7 mic 36.8 cfs
Minor tributaries & 2
immediate drainage - 214.2 mi 328.1 cfs
Totals 425.6 mi2 642.9 cfs
2. Outlet -
Schroon River 432.0 mi ** 640.8 cfs
C. Precipitation***:
1. Year of sampling: 38.5 inches.
2. Mean annual: 37.4 inches.
t Aulenbach, 1973.
* Drainage areas are accurate within ±5%, except for small basins (±10%);
mean daily flows are accurate within ±5 to 25%; and normalized mean
monthly flows are accurate within ±15%.
** Includes area of lake.
*** See Working Paper No. 1, "Survey Methods".
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III. LAKE WATER QUALITY SUMMARY
Schroon Lake was sampled three times during the open-water season of
1972 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 (15 feet or near bottom to
surface) sample was collected from the two stations for phytoplankton
identification and enumeration; and during the last visit, a single five-
gallon depth-integrated sample was collected 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 41 feet at
station 1 and 32 feet at station 2.
The results obtained are presented in full in Appendix B, and the data
for the fall sampling period, when the lake was essentially well-mixed,
are summarized below. Note, however, the Secchi disc summary is based on
all values.
For differences in the various parameters at the other sampling times,
refer to Appendix B.
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A. Physical and chemical characteristics:
Parameter Minimum
Temperature (Cent.) 7.8
Dissolved oxygen (mg/1) 7.1
Conductivity (ymhos) 57
pH (units) 6.6
Alkalinity (mg/1) 10.0
Total P (mg/1) 0.003
Dissolved P (mg/1) 0.001
N0? + N03 (mg/1) 0.080
Ammonia fmg/1) 0.030
FALL VALUES
(10/10/72)
Mean Median
Maximum
12.4
8.6
59
7.1
10.0
0.004
0.003
0.114
0.046
13.5
9.0
59
7.1
10.0
0.004
0.003
0.090
0.040
13.8
9.1
60
7.2
11.0
0.007
0.005
0.220
0.070
ALL VALUES
Secchi disc (inches) 118
147
142
180
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B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
06/01/72
07/25/72
10/10/72
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4,
5.
Dinobryon
Cyclotella
Fragilaria
Achnanthes
Mallomonas
Other genera
Total
Microcystis
Chroococcus
Flagellates
Dinobryon
Merismopedia
Other genera
Total
Dinobryon
Flagellates
Aphanocapsa
Fragilaria
Tabellaria
Other genera
Number
per ml
219
132
70
27
14
55
517
76
60
45
34
31
157
403
163
139
127
87
78
223
Total
817
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2. Chlorophyll a^ -
(Because of instrumentation problems during the 1972 sampling,
the following values may be in error by plus or minus 20 percent.)
Sampling
Date
06/01/72
07/25/72
10/10/72
Station
Number
01
02
01
02
01
02
Chlorophyll a_
(ug/l)
1.9
1.9
1.8
2.9
2.1
1.9
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
Ortho P Inorganic N Maximum yield N/P
Cone, (mg/1) Cone, (mg/1) (mg/1-dry wt.) Ratio
0.004
0.014
0.024
0.054
0.054
0.054
0.004
0.062
0.062
0.062
0.062
5.062
10.062
10.062
0.1
0.3
0.5
0.4
13.9
14.3
0.1
16/1
4/1
Spike (mg/1)
Control
0.010 P
0.020 P
0.050 P
0.050 P + 5.0 N
0.050 P + 10.0 N
10.0 N
2. Discussion -
The control yield of the assay alga, Selenastrum capri-
cornutum, indicates that the potential primary productivity
of Schroon Lake was very low at the time the assay sample
was collected as were the levels of primary nutrients (there
was some loss of inorganic nitrogen in the assay sample from
the time of collection until the assay was begun; however,
the results would not have differed significantly had the loss
not occurred).
-------
The N/P ratio of the control sample, and the lack of
response to the nitrogen only spike, show that the control
sample was phosphorus limited. However, the first phos-
phorus spike of only 10 yg/1 more than tripled the ortho-
phosphorus concentration in the sample and nitrogen became
limiting, so there was no signficant yield response to
increments of phosphorus (note the N/P ratio after the first
addition of phosphorus). Because of the very low levels of
both nutrients, the sample essentially v/as co-limited,
and the only significant yield response occurred when both
nitrogen and phosphorus were added.
The lake data indicate phosphorus limitation at all
sampling times; i.e., the N/P ratios were 36/1 or greater,
and phosphorus limitation would be expected.
-------
IV. NUTRIENT LOADINGS
(See Appendix C for data)
For the determination of nutrient loadings, the New York National
Guard collected monthly near-surface grab samples from each of the tribu-
tary sites indicated on the map (page v), except for the high runoff
months of April and May when two samples were collected. Sampling began
in November, 1972, and was completed in October, 1973.
Through an interagency agreement, stream flow estimates for the year
of sampling and a "normalized" or average year were provided by the New
York District Office of the U.S. Geological Survey for the tributary sites
nearest the lake.
Except for Rogers Brook, nutrient loads for sampled tributaries were
determined by using a modification of a U.S. Geological Survey computer
program for calculating stream loadings . Because of the possible effect
of septic tank discharges on the nutrient concentrations measured in Rogers
Brook at station D-l, the nutrient loads for this stream were calculated
using the mean concentrations at station D-2 and the mean flow at station
D-l.
Nutrient loadings for unsampled "minor tributaries and immediate drainage"
("ZZ" of U.S.G.S.) were estimated by using the means of the nutrient loads,
2
in Ibs/mi /year, at stations E-l, F-l, and G-l and multiplying the means by
2
the ZZ area in mi .
t See Working Paper No. 1.
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10
During the sampling year, the City of Schroon Lake was served by sep-
tic tanks, and estimates of nutrient loadings are based on a population
served of 150*. It is assumed that all of these nutrients reached the
lake. A new wastewater treatment facility was expected to begin operation
by the summer of 1973**.
A. Waste Sources:
1. Known municipal* -
Name
Pop. Mean Receiving
Served Treatment Flow (mgd) Water
Schroon Lake 150
2. Known industrial - None
Septic
tanks
Rogers Brook
* Anonymous, 1971".
** Aulenbach, 1973.
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11
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
Ibs P/ % of
Source y_r total
a. Tributaries (non-point load) -
Schroon River 4,980 34.5
Rogers Brook 380 2.6
Horseshoe Pond Brook 80 0.6
Unnamed Brook (F-l) 70 0.5
Mill Brook 910 6.3
b. Minor tributaries & immediate
drainage (non-point load) - 6,930 48.1
c. Known municipal - None
d. Septic tanks* - 430 3.0
e. Known industrial - None
f. Direct precipitation** - 640 4.4
Total . 14,420 100.0
2. Outputs -
Lake outlet - Schroon River 32,290
3. Net annual P loss - 17,870 pounds
* Estimate based on that portion of the City of Schroon Lake population
served by septic tanks (150) and 627 shoreline dwellings (U.S.G.S. map,
1953); see Working Paper No. 1.
** See Working Paper No. 1.
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12
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
Ibs N/ % of
Source y_r total
a. Tributaries (non-point load) -
Schroon River 556,640 41.3
Rogers Brook 28,410 1.6
Horseshoe Pond Brook 6,090 0.5
Unnamed Brook (F-l) 5,930 0.4
Mill Brook 91,470 6.8
b. Minor tributaries & immediate
drainage (non-point load) - 610,470 45.3
c. Known municipal - None
d. Septic tanks* - 16,150 1.2
e. Known industrial - None
f. Direct precipitation** - 39.770 2.9
Total 1,354,930 100.0
2. Outputs -
Lake outlet - Schroon River 1,615,440
3. Net annual N loss - 260,510 pounds
* Estimate based on that portion of the City of Schroon Lake population
served by septic tanks (150) and 627 shoreline dwellings (U.S.G.S. map,
1953); see Working Paper No. 1.
** See Working Paper No. 1.
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13
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
2 2
Tributary Ibs P/mi /yr Ibs N/mi /yr
Schroon River 29 3,218
Rogers Brook 44 3,266
Horseshoe Pond Brook 32 2,456
Unnamed Brook (F-l) 28 2,391
Mill Brook 37 3,703
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 mor-
phometry permitted. A mesotrophic rate would be considered one
between "dangerous and "permissible".
Total Phosphorus Total Nitrogen
Units
Ibs/acre/yr
grams/m /yr
Total
3.5
0.39
Accumulated
loss*
Total
328.2
36.8
Accumulated
loss*
Vollenweider loading rates for phosphorus
(g/nr/yr) based on mean depth and mean
hydraulic retention time of Schroon Lake:
"Dangerous" (eutrophic rate) 1.12
"Permissible" (oligotrophic rate) 0.56
* An apparent loss of some 17,870 Ibs of total phosphorus and 260,510 Ibs of
total nitrogen occurred during the sampling year. While nitrogen loss can
occur with certain conditions, losses of both nutrients at that magnitude
makes it almost certain that unknown and unmeasured nutrient inputs were
involved.
-------
14
LITERATURE REVIEWED
Anonymous, 1971. Inventory of municipal waste facilities. Pub!.
No. OWP-1, Vol. 2, EPA, Washington, D.C.
Aulenbach, Donald B., 1973. National Eutrophication Survey question-
naire. Rensselaer Polytechnic Inst., Troy.
Vollenweider, Richard A. (in press). Input-output models. Schweiz.
A. Hydro!.
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15
VII. APPENDICES
APPENDIX A
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR NEW YORK
11/26/74
LAKE CODE 3634
5CHROON LAKE
TOTAL DRAINAGE AREA OF LAKE 432.00
JAN FEB MAR
SUB-DRAINAGE
TRIBUTARY AREA
MAY
NORMALIZED FLOWS
JUN JUL AUG
SEP
OCT
NOV
DEC
MEAN
1-81.00
459.00
9.11
2.59
2.59
25.80
230.00
170.00
390.00
B.58
2.44
2.44
24.30
217.00
319.00 RR8.DO
810.00 2180.DO
16.10 44.80
4.57 12.^0
4.57 12;TO
45.50 127.00
406.00 1130.00
509.00
1290.00
25.70
7.30
7.30
72.70
649.00
244.00
599.00
12.30
3.49
3.49
34.80
311.00
119.00
301. -00
5.97
4.70
1.70
16.90
151. rOO
70.90
180.00
3.57
1.02
1.02
10.10
90.50
79.20
195.00
3.99
1.14
1.14
11.30
101.00
119.00
302.00
5.99
1.70
1.70
17.10
152.00
191.00
470.00
9.63
2.74
2.74
27.30
244.00
204.00
518.00
10.30
2.92
2.92
29.10
260.00
257.55
640.82
12.99
3.69
3.69
36.78
328.08
SUMMARY
TOTAL
SUM OF
DRAINAGE
AREA OF LAKE =
SU6-ORAINAGE AREAS =
432.
432.
00
00
TOTAL FLOW IN =
TOTAL FLOW OUT =
7722.
7694.
15
00
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR
3634A1
MEAN FLOW DAY
FLOW DAY
FLOW DAY
FLOW
3634A2
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
R
9
10
72
72
73
73
73
73
73
73
73
73
73
73
72
72
73
73
73
73
73
73
73
73
73
73
276.00
218.00
348.00
315.00
P45.00
884.00
540.00
247.00
168.00
62.70
72.70
45.00
1190.00
711.00
1010.00
684.00
2010.00
2070.00
1520.00
1050.00
565.00
217.00
214.00
20P.OO
5
3
7
25
8
6
9
10
3
7
25
8
6
9
10
3
29
908.00
450.00
600.00
200.00
830.00
452.00
312.00
190.00
206.00
882.00
574.00
3020.00
1110.00
1400.00
733.00
296.00
252.00
23
26
31
28
23
26
31
1440.00
655.00
72.50
1170.00
1620.00
2080.00
170.00
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TRIBUTARY FLOW INFORMATION FOR NEW YORK
11/36/74
LAKE CODE 1634
SCHHOON LAKE
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR MEAN FLOW DAY
3634D1
3634E1
3634FI
3634G1
11
1?
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
1?
1
?
3
4
5
6
7
8
9
10
11
I?
1
?
3
4
5
6
7
8
9
10
72
72
73
73
73
73
73
73
73
73
73
73
72
72
73
73
73
73
73
73
73
73
73
73
72
72
73
73
73
73
73
73
73
73
73
73
72
72
73
73
73
73
73
73
73
73
73
73
FLOW DAY
FLOW DAY
13.90
1.00
17.50
15.90
42.60
44.60
27.30
12.40
fl.43
3.16
3.66
2.26
3.96
3.10
4.98
4.52
12.10
12.60
7.75
3.53
2.40
0.90
1.05
0.64
3.96
3.10
4.98
4.5?
12.10
12.60
7.75
3.53
?.40
0.90
1.05
0.64
39.40
31.10
49.60
45.10
121.00
126.00
77.10
35.20
23.90
R.94
10.40
6.46
5
3
7
as
8
6
9
10
3
5
3
7
25
R
6
9
10
3
5
3
7
25
8
6
9
10
3
5
3
7
25
8
6
9
10
3
57.10
28.20
38.00
12.00
41.00 23
25.50 26
16.70
9.90
9.60 31
15.80
7.80
10.50
3.40
9.15 23
5.75 26
3.70
2.08
1.62 31
17.60
8.75
11.70
3.80
9.60 23
5.28 26
2.80
O.PO
1.46 31
145.00
71.20
96.00
30.20
122.00 23
64.00 26
41.50
21.80
26.20 31
63.00
34.00
1.70
14.20
7.60
0.30
16.80
7.56
0.21
218.00
94.00
6.70
FLOW
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TRIBUTARY FLOW INFORMATION FOR NEW YORK
11/26/74
LAKE CODE 3634
SCHROON LAKE
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR MEAN FLOW DAY
3634ZZ
11
1?
1
2
3
4
5
6
7
8
9
10
7?
7?
73
73
73
73
73
73
73
73
73
73
FLOW DAY
FLOW DAY
35?. 00
278.00
442.00
402.00
1030.00
130.00
689.00
315.00
213.00
80.10
92.70
57.40
5
3
7
25
6
6
SI
10
3
678.00
336.00
450.00
144.00
1140.00 23
568.00 26
364.00
178.00
244.00 31
2060.00
865.00
79.30
FLOW
-------
APPENDIX B
PHYSICAL and CHEMICAL DATA
-------
STORET RETRIEVAL DATE 74/11/26
363401
43 45 48.0 073 45 48.0
SCHROON LAKE
36 NEW YORK
00010
DATE TIME DEPTH WATER
FROM OF TEMP
TO DAY FF.F.T CENT
72/06/01 17 35 0000 18.8
17 35 0010 17.9
17 35 0037 5.5
72/07/25 16 40 0000
16 40 0004 25.0
16 40 0015 21.9
16 40 0025 11.?
16 40 0035 7.2
72/10/10 15 30 0000
15 30 0004 13.3
15 30 0015 13.5
15 30 0030 11.0
15 30 0041 7.8
11EPALFS
3
00300
DO
MG/L
9.
9.
10.
P.
P.
9.
9.
9.
7.
7.
0
4
9
2
4
2
0
0
6
1
00077
TRANSP
SECCHI
INCHES
118
140
180
00094
CNDUCTVY
FIELD
MICROMHO
30
50
50
55
55
50K
50K
50K
60
60
59
59
57
00400
PH
su
6.
7.
6.
7.
7.
7.
7.
7.
7.
7.
7.
7.
6.
70
00
90
50
50
30
20
20
10
10
10
10
65
00410
T ALK
CAC03
Mf,/L
10
11
10K
15
14
13
11
10
10
11
11
10K
10K
2111202
0000
00630
N02&N03
N-TOTAL
MG/L
0.140
0.140
0.200
0.090
0.100
0.120
0.180
0.220
0.080
0.090
0.080
0.170
0.220
FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.010K
0.010
0.010
0.050
0.050
0.060
0.060
0.060
0.040
0.070
0.040
0.050
0.030
00665
PHOS-TOT
MG/L P
0.003
0.003
0.004
0.007
0.007
0.007
0.006
0.005
0.004
0.004
0.004
0.004
0.007
00666
PHOS-DIS
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
002
003
002
004
006
006
004
004
004
004
003
003
003
32217
DATE TIME DEPTH CHL^DHYL
FROM OF 6
TO DAY FEET UG/L
7?/06/01 17 J5 0000 1.9J
72/07/25 16 40 0000 1.8J
72/10/10 15 30 0000 2.1J
K \MIJIS KNOWN TO
THAN INDICATED
J VJLDt KNOWN TO HE
-------
STORE! RETRIEVAL DATE 74/11/26
363403
43 49 54.0 073 47 00.0
SCHROON LAKE
3S NEW YORK
00010
DATE TIME DEPTH WATER
FROM OF TF"P
TO DAY FEET CENT
72/06/01 18 ?0 0000 17.7
Ifl 20 0010 16.0
IS 20 0032 5.4
72/07/2S 17 15 0000
17 15 0004 25.6
17 15 0014 21.0
72/10/10 16 00 0000
16 oo 0004 n.a
16 00 0015 13.7
16 00 0024 13.3
00300
DO
Mfi/L
9.
10.
11.
«.
P.
9.
9.
9.
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
5 132
0
2
144
4
«
168
1
1
1
30
30
20
55
55
55
59
58
58
59
HEPALES 2111202
3 0040 FEET DEPTH
00400 00410 00630 00610 00665 00666
PH T ALK N02&N03 NH3-N PHOS-TOT PHOS-DIS
CAC03 N-TOTAL TOTAL
SU
6
6
6
7
7
7
7
7
7
7
MG/L
.60
.60
.90
.50
.50
.50
.20
.15
.10
.10
10K
10K
to
10K
15
14
10
11
10K
10
MG/L
U
0
0
0
0
0
0
0
0
0
.160
.160
.180
.090
.080
.110
.090
.080
.140
.080
MG/L
0.020
0.030
0.010
0.060
0.030
0.060
0.050
0.040
0.040
0.050
MG/L P
0
0
0
0
0
0
0
0
0
0
.002
.004
.002
.006
.006
.007
.006
.003
.003
.003
MG/L P
0.002K
0.002K
0.002
0.005
0.005
0.004
0.005
0.001
0.001
0.003
3" 17
DATE TIME DEPTH CHLkPHYL
FROM OF fl
TO DAY FEET U'i/L
72/Ob/Ol 18 20 0000 1.9J
72/07/25 17 15 0000 2.9J
72/10/10 16 00 0000 1.9J
K v^LUf KNOWN TO d£
THAN INDICATE')
J VALUF K\'0'VN TO HE M
-------
APPENDIX C
TRIBUTARY DATA
-------
STORE! RETRIEVAL OATF 74/11/26
3634A1 LS3634A1
43 52 30.0 073 44 30.0
SCHROON RIVER
36 15 PARADOX LAKE
I/SCHROON LAKE
ST HWY 73 CULVERT
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/1 1/05
72/12/03
71/01/07
73/02/25
73/04/OR
73/0-+/23
71/05/06
73/05/26
73/06/04
73/07/10
73/08/03
73/08/31
73/09/29
00630
TIME DEPTH NO?^N03
OF N-TOTAL
DAY FEET MG/L
11 45 0.030
0.033
0.231
C.02R
C.100
0.056
0.031
0.0^*4
0.069
0.010K
0.134
0.016
0.021
00625
TOT KJEL
N
MG/L
0.230
0.210
0.170
1.320
2.100
1.200
1.400
2.600
0.300
O.R30
O.RIO
2.400
0.100K
00610
NH.l-N
TOTAL
MG/L
0.039
0.011
0.026
0.110
0.200
0.040
0.0. IP
0.024
0.018
0.033
O.OOP
0.069
0.036
00671
PHOS-DIS
ORTHO
MG/L P
0.005K
0.005K
0.005K
0.007
0.005K
0.005K
0.010
0.008
0.005K
0.005K
0.005K
0.005K
00665
PHOS-TOT
MG/L P
0.006
0.005K
O.OOS*
0.020
0.005K
O.OOSK
0.015
0.015
0.015
0.005K
0.020
O.OOSK
0.010
HNCHN TO dt LESS
-------
STORET RETRIEVAL DATE 74/11/26
3634A? LS3634A2
43 43 00.0 073 48 30.0
5CHROON ^IVER
36 15 NORTH CREEK
0/SCHWOON LAKE
ALONG RANK FROM LOT DUTY RO
11EPALES 2111204
4 0000 FEET
DATE
FPOM
TO
7P/1 1/05
73/02/25
73/04/08
73/04/23
73/C5/06
73/05/26
71/06/0^
71/07/10
71/08/03
73/OW/31
73/OV/PQ
00630
TIME DEPTH NO?\N03
OF N-TOTAL
DAY FEET MG/L
10 30 0.140
O.Olrt
0.210
0.074
0.060
1.056
0.067
0.018
0.063
O.P-54
0.019
0062S
TOT KJEL
N
MG/I
0.600
0.540
4.000
0.910
0.9PO
1.H90
0.460
l.OSO
0.400
P.OOO
0.340
00610
NH3-N
TOTAL
MG/L
0.160
0.026
0.160
o.n?i
0.157
0.06R
0.031
0.07S
0.032
0.10C
0.05*
00671
pHOs-nis
ORTHO
MG/L P
0.006
0.005K
0.005K
0.005K
0.012
0.005K
0.020
O.OOR
0.005K
0.005K
0066S
PHOb-TOT
MG/L P
0.039
0.005K
0.010
0.015
0.030
0.055
0.035
0.025
0.025
0.015
DEPTH
TO Sc.
THAN P'OICATFO
-------
STORET RETRIEVAL. DATE 7<«/ll/26
3634B1 LS3634R1
43 52 30.0 073 44 00.0
UNNAMED BROOK
36 15 PARADOX LAKE
T/SCHROON LAKE
ST HWY 73 BPOG
11E»ALFS 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/11/05
72/12/03
73/01/07
73/01/27
73/02/25
73/04/08
73/04/23
73/05/06
73/05/2*
73/06/0^
71/07/10
73/0 H/0 3
73/OB/3I
73/09/29
00630
TIME DEPTH NO?f>N03
OF NI-TOT4L
DAY FEET MG/L
11 35 C.240
0.176
0.05*
0.240
0.010K
0.231
0.340
0.230
0.046
0.066
0.115
0.1 3H
0.130
0.115
00625
TOT KJFL
N1
MG/I
0.240
0.230
0.170
0.250
0.160
6.100
1.150
0.450
0.560
0.320
0.750
1.100
1.760
0.500
00610
NH3-N
TOTAL
MG/L
0.035
«.016
0.019
D.040
0.016
0.230
0.027
0.020
0.013
0.013
0.029
0.340
0.052
0.115
00671
PHOS-DIS
ORTHO
MG/L P
0.005K
0.005K
0.005K
0.011
0.005K
0.005K
0.005K
0.005K
0.005K
0.006
0.005K
0.005K
0.007
O.OOSK
00665
PHOS-TOT
MG/L P
0.007
0.005K
0.010
0.011
0.005K
0.015
O.OOSK
0.015
0.090
0.015
0.010
0.01Q
0.01=;
O.Olb
-JO
TO
-------
STORE! RETRIEVAL DATE 74/1 l/?6
3634C1 LS3634C1
43 51 30.0 073 43 30.0
ALOER CREEK
36 is PARADOX LAKE
T/SCHROON LAKE
BWOG S OF OWLS HEAD MTN
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/1 I/OS
72/12/03
73/01/27
73/04/OH
73/04/23
73/05/0*
73/05/26
73/06/09
73/07/10
73/08/03
73/09/31
73/09/24
00630
TIMF DF»TH N026.N03
OF N-TOTAL
DAY FEET MG/L
11 30 0.05?
0.048
0.0*5
0.054
0.0?0
0.030
0.048
0.066
0.031
0.080
0.0^5
0.021
00625
TOT KJFL
N
MG/L.
0.310
0.210
0.190
2.200
0.660
0.600
1.400
0.420
0.560
0.630
0.230
0.295
00610
NHJ-N
TOTtL
Mr,/L
0.04P
0.005K
0.020
0.176
0.021
0.021
0.020
0.022
0.022
o.oeo
0.03B
0.033
00671
PHOS-DIS
OPTHO
MG/L o
0.005K
0.005K
0.006
0.005K
0.005K
0.005K
0.005K
0.006
0.006
0.005K
0.006
0.005K
00665
DHOS-TOT
MG/L P
0.012
0.005K
0.006
0.005K
0.005K
0.015
0.01S
0.015
0.017
0.030
0.015
0.010
K \/ .\LtJr
TO Rt
-------
STORET RETRIEVAL DATE 74/11/26
363401 LS3634D1
43 SO 00.0 073 45 30.0
ROGERS BROOK
36 15 SCHROON LAKE
T/SCHROON LAKE
MOM SANK IN SCHROON LAKE HELO STP
HE^ALES 2111204
4 0000 FEET DEPTH
DATE TIMF
FROM OF
TO DAY
72/ll/OS
72/12/03
73/01/07
73/01/27
73/02/25
73/04/OH
73/04/23
73/05/06
73/05/26
73/06/09
73/07/10
73/09/03
73/03/31
73/09/29
00630
DEPTH MO?«wN03
N-TOTAL
FEET MG/L
0.085
0.140
0.19H
0.290
0.010*
0.198
0.138
0 .06b
0.05H
0.066
0.130
0.052
0.320
0.110
00625
TOT KJFL
M
MG/L.
0.360
0.290
O.P40
0.250
0.130
1.760
1.260
1.100
I.fl90
0.460
0.5.?0
0.500
1.320
0.520
00610
NH3-N
TOTAL
MG/L
0.096
0.016
3.0?5
0.035
0.01H
0.147
0.029
0.026
0.037
0.030
0.022
0.154
0.555
0.053
00671
PHOS-DIS
ORTHO
MG/L P
0.005K
0.006
0.005K
0.007
0.005K
0.005K
0.007
0.006
0.012
0.006
0.006
0.005K
Oo006
0.005K
00665
PHOS-TOT
MG/L P
0.013
0.006
0.010
0.015
0.007
0.010
Oo025
0.025
OoOSO
0.015
0.020
0.010
Oo055
OoOlO
VALU-" KMOlvM TO
THIN
-------
STORET RETRIEVAL DATE 74/11/26
363402 LS3634D2
43 50 00.0 073 46 30.0
P.OGERS BROOK
36 15 SCHROON LAKE
T/SCHROON LAKE
BROG .5 MI W OF SCHROON LAKE ABOV STP
IIE^ALES 2111204
4 0000 FEET DEPTH
OATE TIME
FROM OF
TO DAY
72/1 1/05
73/01/07
73/02/25
73/04/.08
73/04/23
73/05/06
73/05/26
73/06/09
73/07/10
73/08/03
73/08/31
73/09/29
00630
DEPTH NOP6.N03
N-TOTAL
FEET MG/L
0.05?
0.170
0.0)6
H.198
0.13H
0.054
0.05?
0.066
0.110
0.028
0.378;
O.OS8.
006?"=;
TOT KJTL
N
MG/L
0.390
o.??o
0.110
2.900
1.540
1 . 3?0
2.400
0.400
0.680
0.600
0.580
0.860
00610
NH3-N
TOTAL
MG/L
0.044
0.028
0.021
0.160
0.034
0.054
0.033
0.015
0.026
0.032
0.046
0.067.
00671
PHOS-DIS
ORTHO
MG/L P
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.010
0.005K
0.006
0.005K
0.010
0.005K
00665
PHOS-TOt
MG/L *'
0.011
0.010
O.OOSK
0.005K
0.005K
0.010 .
0.015
0.015
0.030
0.050
0.010
THAN
KNOWN TO H*-" Lh SS
-------
STORE! RETRIEVAL DATE 74/11/26
3634E1 LS3634E1
43 50 00.0 073 46 30.0
HORSESHOE POMD BWOOK
36 15 SCHROON LAKH
T/SCHROON LAKE
US HWY 9 BROG IN SCHROON LAKE
HEPALFS 2111204
4 0000 FEET DEPTH
DATE TIWE DEPTH
FROM OF
TO DAY FFET
72/11/05 11 15
7?/l2/03
7.1/01/07
73/01/27
73/02/25
73/04/OH
73/04/23
73/05/Oft
71/05/26
71/06/09
73/07/10
73/08/03
73/08/31
73/09/29
00630
NG2S.N03
N-TOTAL
MG/L
0.110
0.147
0.09^
0.110
0.017
0.042
0.034
0.032
0.044
0.06<»
0.11S
0.088
0.2PO
0.080
00625
TOT KJEL
N
MG/L
0.360
0.280
0 . 1 80
O.P10
3.400
P.400
0.700
0.630
0.5?0
0.180
0.570
C.750
P.600
0.920
00610
NH3-N
TOTAL
MG/L
0.065
0.013
0.018
0.025
0.029
0.200
0.019
0.037
0.035
O.P16
0.056
0.110
0.900
0.790
00671
PHOS-DIS
OSTHO
MG/L P
0.005K
0.006
0.005K
0.007
0.009
0.005K
0.005K
0.005K
0.006
0.007
0.005K
0.005K
0.006
0.005K
00665
PHOS-TOT
MG/L P
0.017
0.009
0.005K
0.007
0.005K
0.005K
0.010
0.020
0.010
0.015
0.035
0.005K
VALUE «NOftN TO HE LESS
THAN IMDICATEU
-------
STORET RETRIEVAL DATE 74/11/26
3634F1 LS3634F1
43 46 30.0 073 47 30.0
UNNAMED RKOOK
36 15 SCHROON LAKE
T/SCHROON LAKE
RO BRDG JOINING US HWY 9
11F.PALFS 2111204
4 0000 FEET DEPTH
DATE TIME DFPTH
FROM OF
TO. DAY FEET
72/11/05 11 25
72/12/03
73/01/07
73/01/27
73/02/25
73/04/08
73/04/23
73/05/06
73/05/26
73/06/09
73/07/10
73/08/03
73/08/31
73/09/29
00630
N02S.N03
N-TOTAL
MG/L
0.067
0.069
0.077
0.069
0.015
0.036
0.074
0.039
0.0*8
0.063
0.138
0.078
0.198
O.OH3
006?5
TOT KJEL
M
MG/L
0.240
0.250
0.270
1.500
0.560
1.760
1.200
0.260
0.360
0.770
1.050
1.095
0.520
00610
NH3-N
TOTAL
MG/L
0.04P
0.022
0.058
0.150
0.042
0.105
0.072
0.027
0.008
0.018
0.046
0.330
0.126
0.115
00671
PHOS-DIS
ORTHO
MG/L P
0.005K
0.005K
0.005K
0.006
0.005K
0.005K
0.005K
0.005K
0.006
0.005K
0.006
0.005K
0.005K
0.005K
00665
PHOS-TOT
MG/L P
0.011
0.005K
0.005K
0.010
0.005K
0.010
0.010
0.020
0.010
0.015
0.013
0.015
0.010
0.005K
THiN
TO Ht LESS
-------
STOPET RETRIEVAL DATE 74/11/26
3634G1 LS3634G1
43 46 00.0 073 45 30.0
MILL BROOK
36 15 SCHROON LAKE
T/SCHROON LAKE
BROG IN ADIRONDACK
11EPALES £111204
4 0000 FEET
DATE TIME DEPTH
FROM OF
TO DAY FEET
72/11/05 10 <*S
7?/l?/03
73/01/07
73/0 l/?7
73/04/0«
73/04/23
73/05/06
73/05/26
73/06/09
73/07/10
73/03/03
73/08/31
73/09/29
00630
N02&N01
N-TOTAL
MG/L
0.060
J.048
O.OH4
0.078
0.052
0.052
O.il5
3.052
0.063
0.078
0.078
0.054
0.050
00625
TOT KJEL
M
MG/L
0.440
0.150
0.240
0.180
4.100
3.500
1.000
l.ROO
0.430
1.050
1.700
0.260
1.100
00610
NH3-N
TOTAL
MG/L
0.063
0.009
0.037
0.02fl
0.252
0.132
0.020
0.037
0.012
0.044
0.330
0.009
0.027
00671
PHOS-OIS
ORTHO
MG/L P
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.006
0.005K
0.005K
0.005K
0.005K
0.005K
00665
PHOS-TOT
MG/L P
0.010
0.015
0.005K
0.010
0.015
0.005K
0.010
0.015
0.020
0.030
0.015
0.005K
DEPTH
f.NO'i/N 10
I'\OICATFn
LESS
-------
STORET RETRIEVAL DATE 74/11/26
3634H1 LS3634H1
43 43 30.0 073 49 30.0
TROUT BROOK
36 15 NORTH CHEEK
T/SCHROON LAKE
US HWY 9 HROG
11EPALES 2111204
4 0000 FEET
DEPTH
DATE
FRO*
TO
72/11/05
72/12/03
73/01/07
73/04/08
73/04/23
73/05/06
73/05/26
73/06/0'->
73/07/10
7V08/31
73/0-^/29
00630
TI^E DEPTH NOP&N03
OF N-TOTAL
DAY FEET MG/L
10 35 0.211
0.190
0.189
O.?60
0.210
0.126
0.052
0.0 6rt
0.066
0.1HO
0.075
00625
TOT KJEL
M
MG/L
0.340
0.240
0.300
3.020
1.050
1.150
0.940
1.470
o.eoo
1.260
0.460
00610
NH3-N
TOTAL
MG/L
0.05P
0.008
0.058
0.430
0.030
0.03*
0.017
0.031
0.044
0.280
0.024
00671
PHOS-OIS
OPTHO
MG/L P
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
00665
PHOS-TOT
MG/L P
0.007
0.006
0.010
0.010
0.010
0.015
0.025
0.020
0.015
0.015
0.025
E r.NOWN TO Rn LESS
THAN IMQICATFi)
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