U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LONG LAKE
AROOSTQOK COUNIY
MAINE
EPA REGION I
WORKING PAPER No, 7
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—697.032
-------
REPORT
ON
LONG LAKE
AROOSTOOK COUN1Y
MAINE
EPA REGION I
WORKING PAPER No, 7
WITH THE COOPERATION OF THE
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION
AND THE
MAINE NATIONAL GUARD
MAY, 1974
-------
•1
CONTENTS
Page
Foreword ii
List of Maine Study Lakes iv
Lake and Drainage Area Map V
Sections
I. Conclusions 1
II. Introduction 2
III. Lake and Drainage Basin Characteristics 3
IV. Lake Water Quality Summary 4
V. Nutrient Loadings 9
VI. Literature Reviewed 14
VII. Appendices 15
-------
11
FOREWORD
The National Eutrophication Survey was initiated in 1972 as a
research project in response to an Administration commitment to
investigate the nationwide threat of accelerated eutrophication to
fresh water lakes and reservoirs.
OBJECT I VES
The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations
and impact on selected fresh water 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, in fact, 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
This report documents the first stage of evaluation of lake and
watershed data collected from the study lake and its drainage basin.
It is formatted to provide state environmental agencies with specific
information for basin planning [ 3O3(e)], water quality criteria!
standards review [ 3O3(c)}, clean lakes [ 3l4(a,b)], and water quality
monitoring [ 5106 and §305(b)] activities mandated by the Federal Water
Pollution Control Act Amendments of 1972.
-------
111
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic
condition 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 Maine Department of
Environmental Protection for professional involvement and to the
Maine National Guard for conduct of the tributary sampling phase
of the Survey.
William R. Adams, Commissioner of the Department of Environmental
Protection, and William P. Hinckley and Matthew Scott of the Division
of Lakes and Biological Studies, provided invaluable lake documentation
and counsel during the course of the study.
Major General Edwin W. Heywood (Retired), then the Adjutant
General of Maine, and Project Officer Lieutenant Colonel Earl B. Adams
who directed the volunteer efforts of the forty-one participating Maine
National Guardsmen are also gratefully acknowledged for their assistance
to the Survey.
-------
iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF MAINE
LAKE NAME COUNTY
Moosehead Lake Piscataquis, Somerset
Estes Lake York
Long Lake Cumberland
Bay of Naples & Sebago Lake Cumberland
Rangeley Lake Franklin
Long Lake Aroostook
Mattawamkeag Lake Aroostook
Sebasticook Lake Penobscot
-------
V
I
Maine
LONG LAKE
0 Tributary Sampling Site
x Lake Sampling Site
Sewage Treatment
Facility
./ Direct Drainage Area
9 1 2
Scale
-------
LONG LAKE, AROOSTOOK COUNTY
STORET NO. 2313
I. CONCLUSIONS
A. Trophic Condition:
The low levels of primary nutrients and low control yield
of the algal assay as observed during the Survey and deep water
oxygen depression reported by Maine agencies indicate that
Long Lake is mesotrophic.
B. Rate-Limiting Nutrient:
The results of the algal assay indicate that Long Lake was
phosphorus limited at the time the sample was collected. Field
data also indicate phosphorus limitation.
C. Nutrient Sources; Controllability:
1. Point Sources — Other than septic tanks, the only point
source of nutrients to Long Lake is the St. Agatha Sanitary
District waste treatment facility. Phosphorus removal at this
source would not be expected to result in any observable change
in the trophic condition of Long Lake.
2. Non-Point Sources - Export of nutrients from diffuse
sources represent over 85% of calculated total nitrogen and
phosphorus loadings. In view of the proximity of present
phosphorus loading rates to the predicted “permissible” limits,
continued assessment of cultural practices within the Long Lake
watershed should be maintained.
-------
2
II. INTRODUCTION
Long Lake, Aroostook County, is the uppermost and deepest major lake
in the Fish River chain of lakes which are tributary to the St. John River.
The St. John River forms the major portion of the Maine-New Brunswick,
Canada, border.
Long Lake is considered one of the best cold-water lakes in northern
Maine from a fish management point of view, and water quality is said to
be ideal for landlocked Atlantic salmon, Salnio salar (introduced), and
brook trout, Salvelinus fontinalis . Both of these species are relatively
intolerant of environmental extremes.
In addition to excellent fishing, other recreational uses of the lake
include aesthetics, camping, swimming, and boating. The State of Maine
maintains a public boat-launching site near the village of St. Agatha.
Although the lake is not utilized as a public water supply, use is
made of the water for irrigation of potatoes. Aroostook County is re-
nowned as a potato-producing area.
Much of the 90-square-mile drainage is forested and provides a pleasing
setting for the lake.
-------
3
III. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometry:
1. Surface area: 6,000 acres.
2. Mean depth: 44 feet.
3. Maximum depth: 163 feet.
4. Volume: 264,000 acre/feet.
5. Mean hydraulic retention time: 3.2 years.
B. Tributary and Outlet:
(See Appendix A for flow data)
1. Tributaries -
Name Drainage areat Mean flow 1
McLean Brook 15.4 mi 2 23.3 cfs
Little River 12.5 mi 2 16.0 cfs
Minor tributaries & 2
immediate drainage - 53.1 ml 73.6 cfs
Totals 81.0 mi 2 112.9 cfs
2. Outlet -
Long Lake outlet 90.4 mi 2 * 112.9* cfs
C. Precipitation**:
1. Year of sampling: 45.8 inches.
2. Mean annual : 36.3 inches.
* Includes area of lake; outflow adjusted to equal sum of inflows.
** See Working Paper No. 1, “Survey Methods”.
t Drainage areas are accurate within ±1% and mean annual flows within ±5%.
-------
4
IV. LAKE WATER QUALITY SUMMARY
Long 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 three stations
on the lake and from a number of depths at each station (see map, pagev ).
During each visit, a single depth-integrated (15 feet or near bottom to
surface) sample was composited from the three stations for phytoplankton
identification and enumeration; and during the last visit, a single five-
gallon depth-integrated sample was composited for algal assays. Also,
each time depth-integrated samples were collected at the stations for
chlorophyll a analyses. Maximum depths sampled were 15 feet at station
1, 14 feet at station 2, and 73 feet at station 3.
It should be noted that the Survey Secchi disc values are con-
sistently less than those observed by the Maine Department of
Environmental Protection. Such variations could be attributed to
fluctuations in cloud cover or sun angle (ambient light conditions),
observer technique, water surface disturbance, or may, in fact, be the
result of short—term water clarity differences.
It should also be noted that Survey sampling to 40 feet at station 3
in August did not reveal oxygen depression. However, Matthew Scott of the
Maine Department of Environmental Protection advises that the thermocline
in this lake ordinarily is quite deep by August. The water temperatures
show that none of the Survey samples were collected even as deep as the
-------
5
thermocline, and thus the oxygen depression with depth observed by Maine
agencies was not detected.
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
are summarized below. Note, however, the Secchi disc summary is based on
all samples.
For differences in the various parameters at the other sampling times,
refer to Appendix B.
A. Physical and chemical characteristics:
FALL VALUES
(09/28/72)
Parameter Minimum Mean Median Maximum
Temperature (Cent.) 12.9 13.2 13.2 13.6
Dissolved oxygen (mg/i) 7.2 8.9 9.2 9.6
Conductivity (pmhos) 80 81 80 85
pH (units) 7.3 7.4 7.4 7.4
Alkalinity (mg/i) 26 28 28 29
Total P (mg/i) 0.010 0.012 0.012 0.012
Dissolved P (mg/i) 0.006 0.007 0.007 0.008
NO + NO (mg/i) 0.080 0.089 0.090 0.100
Am onia ?mg/l) 0.060 0.069 0.070 0.070
ALL SAMPLES
Secchi disc (inches) 76 104 109 132
-------
6
B. Biological characteristics:
1. Phytoplankton* -
Sampling Dominant Number
Date Genera per ml
06/06/72 1. Asterionella 172
2. Flagellates 169
3. Dinobryon 130
4. Anabaena 75
5. Melosira 57
Other genera 181
Total 784
09/28/72 1 . Polycystis 3,585
2. Chroococcus 2,642
3. Anabaena 2,113
4. Flagellates 943
5. Synedra 717
Other genera 2,453
Total 12,453
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 Station Chlorophyll a
Date Number ( pg/l )
06/06/72 01 3.3
02 5.3
03 3.8
08/08/72 01 4.3
02 4.4
03 4.2
09/28/72 01 8.6
02 13.7
03 14.6
* The August phytoplankton sample was lost in transit.
-------
7
Maximum yield
( mg/i-dry wt. )
0.1
5.0
-*
4.9
4.5
16.2
0.1
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
Ortho P Inorganic N
Spike (mg/i) Conc. (m9Il) Conc. (mg/i ) ____________
Control 0.002 0.154
0.006 p 0.008 0.154
0.012 P 0.014 0.154
0.024 P 0.026 0.154
0.060 P 0.062 0.154
0.060 P + 10.0 N 0.062 10.154
10.0 N 0.002 10.154
2. Discussion -
The control yield of the assay alga, Selenastrum capri-
cornutum , shows that the potential primary productivity in
Long Lake was quite low at the time the sample was collected.
Also, the increased yield resulting from the first increment
of orthophosphorus shows the lake was phosphorus limited (note
that the addition of only nitrogen did not produce a greater
yield than the control). The field data obtained also indicate
phosphorus limitation at all sampling times; nitrogen/phosphorus
ratios ranged from 23/1 to 64/1 (i.e., phosphorus limitation
would be expected).
The assay results also indicate that only a relatively small
increase in phosphorus concentration in Long Lake would result
* The yields resulting from this spike were so low in each of the three
replicates that the data cannot be considered reliable; this may have
resulted from an inadvertent omission of the spike.
-------
8
in nitrogen limitation. Note that after the first
phosphorus spike, succeeding increments of phosphorus
did not result in increased yields, but that when both
nitrogen and phosphorus were added, the yield increased
markedly.
The algal assay results, then, indicate a slight
phosphorus limitation at the time the sample was taken
despite the field N/P ratio of 23 to 1. This reflects
such a low level of primary nutrients in the lake that only
a minor change in the level of phosphorus would cause a
shift to nitrogen limitation.
D. Trophic Condition:
Though the algal assay control yield was quite low as
were the levels of primary nutrients, Survey sampling in the
lake waters was insufficient to reveal the oxygen depression
apparent at depth reported by Maine biologists.* Including
those data, it is concluded that Long Lake is mesotrophic.
*See discussion on pages 4 & 5; Data in Appendix B
-------
9
V. NUTRIENT LOADINGS*
(See Appendix B for data)
For the determination of nutrient loadings, from September 1972
through July 1973, the Maine 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 April and May, when two samples were
collected, and the colder months of the year when one or more samples were
omitted.
Through an interagency agreement, estimated flows for the year of
sampling and a “normalized” or average year were provided by the Maine
District Office of the U. S. Geological Survey for the tributary sites
nearest the lake.
In this report, tributary nutrient loads were calculated using mean
concentrations and mean flows. Nutrient loadings for unsanipled “minor
tributaries and immediate drainage” (“ZZ” of U.S.G.S.) were calculated
using the mean concentrations in McLean Brook at station B-i and mean
ZZ flows.
The operator of the St. Agatha Sanitary District wastewater treatment
plant provided composited effluent samples and flow data on a monthly basis.
A. Waste Sources:
1. Municipal -
Pop. Mean Receiving
Name Served Treatment Flow (mgd) Water
St. Agatha 450 Act. sludge 0.040 Long Lake
S.D.
* Based on sampling frequency and variations in concentrations, single
tributary loadings for gaged sites are believed to be within ±16% of
the true value 67% of the time and ,ithin ±32% of the true value 95%
of the time.
-------
10
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
lbsP/ %of
Source yr total
a. Tributaries (non-point load) -
McLean Brook 870 13.2
Little River 940 14.2
b. Minor tributaries & immediate
drainage (non-point load)* - 2,750 41.7
c. Municipal STP’s -
St. Agatha S.D. 640 9.7
d. Septic tanks** - 460 7.0
e. Industrial -
Unknown - -
f. Direct Precipitation* - 940 14.2
Total 6,600 100.0
2. Outputs -
Long Lake outlet 2,890
3. Net annual P accumulation - 3,710 lbs.
* Estimated; see Working Paper No. 1, “Survey Methods”.
** Estimated 735 residences within 100 yards of lake, including camps.
-------
11
C. Annual Total Nitrogen Loading - Average Year:
1 . Inputs -
lbsN/ %of
Source ______ total
a. Tributaries (non-point load -
McLean Brook 65,410 16.6
Little River 45,100 11.4
b. Minor tributaries & immediate
drainage (non-point load)* - 206,620 52.4
c. Municipal STP’s -
St. Agatha S.D. 1,930 0.5
d. Septic tanks** - 17,270 4.4
e. Industrial -
Unknown -
f. Direct precipitation* - 57,800 14.7
Total 394,130 100.0
2. Outputs -
Long Lake outlet 155,140
3. Net annual N accumulation - 238,990 lbs.
* Estimated; see Working Paper No. 1, “Survey Methods”.
** Estimated 735 residences within 100 yards of lake, including camps.
-------
12
0. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary lbs P/mi 2 /yr lbs N/mi 2 /yr
McLean Brook 56 4,247
Little River 75 3,608
E. Yearly Loading Rates:
In the following table, the existing phosphorus loading
rates are compared to those proposed by Vollenweider (1973).
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 oligo-
trophic if morphometry permitted. A mesotrophic rate would
be considered one between “dangerous” and “permissible”.
Total Phosphorus Total Nitrogen
Units Total Accumulated Total Accumulated
1bs/acr /yr 1.1 0.6 65.7 39.8
grams/m /yr 0.12 0.07 7.4 4.5
Volle weider loading rates for phosphorus
(g/m /yr) based on the mean depth and mean
hydraulic retention time of Long Lake:
“Dangerous” (eutrophic rate) 0.40
“Permissible” (oligotrophic rate) 0.20
F. Controllability of Nutrients:
1. Discussion —
During the sampling year, Long Lake was receiving a phos-
phorus loading at a rate less than that proposed as permissible
by Vollenweider (1973). However, if the loading rate is in-
-------
13
creased by only 0.7 ibs/acre/yr, or 4,200 lbs/yr for the entire
lake, the permissible limit would be reached. This points to
the need for continued assessment of cultural practices within
the Long Lake drainage to insure that the existing trophic con-
dition of the lake is maintained.
It is noted that the non-point nutrient export loads to
Long Lake (see page 12) were somewhat greater than those to
the other natural Maine lakes studied (all within the same time
frame). It is not known whether this is due to the intensive
potato production in the drainage, but it would seem desirable
to study the possibility in greater depth than was possible
during the Survey.
At this time, the only point source of phosphorus, other
than septic tanks, is the St. Agatha Sanitary District waste
treatment facility which contributed a little less than 10
percent of the phosphorus load to Long Lake during the sampling
year. While the institution of 80% phosphrus removal at St.
Agatha would reduce the total phosphorus loading to the lake
by about 0.09 lbs/acre/yr (0.01 g/m 2 /yr), and thus provide an
additional margin of safety, it is not likely that such removal
would result in any observable change in the present trophic
condition of Long Lake.
-------
14
VI. LITERATURE REVIEWED
Anonymous, 1953. Long Lake survey report. Dept. Inland Fisheries &
Game, Augusta.
Hinckley, William p., 1973. Personal communication (St. Agatha S.D.
facility; Long Lake drainage characteristics). Dept. of Environ-
mental Protection, Augusta.
Scott, Matthew, 1974. Personal communication (Long Lake shoreline
survey; stratification and trophic state of lake). Dept. of
Environmental Protection, Augusta.
Vollenweider, Richard A., 1973. Input-output models. MS, Canada Centre
for Inland Waters, Burlington, Ontario.
-------
15
VII. APPENDICES
APPENDIX A
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR MAINE 6/25/74
LA(E COOE 2313 LON& LAKE (AROOSTOOX CO.)
TOTAL ORATNAGE AREA OF LAKE 90.40
SUB—ORA INACnE NORMALIZED FLOWS
TRIBUTARY AREA JAN FEB MAR APN MAY JIJN JUL AUG SEP OCT NOV DEC MEAN
231381 90.40 82.00 74.00 201.00 379.00 187.00 68.00 24.00 19.00 25.00 38.00 145.00 110.00 112.53
2111R1 15.40 12.00 8.50 18.00 84.00 50.00 15.00 7.30 6.30 8.30 13.00 34.00 23.00 23.27
2113C1 12.50 9.70 9.90 35.00 61.00 20.00 7.20 2.20 1.70 3.30 4.90 24.00 14.00 16.04
2113 17 62.50 61.00 56.00 148.00 234.00 118.00 45.00 15.00 11.00 14.00 21.00 88.00 73.00 73.58
SUMMARY
TOTAL DRAINAGE AREA OF LAKE = 90.40 TOTAL FLOW IN = 1356.30
SUM OF SUB—DRAINAGE AREAS = 90.40 TOTAL FLOW OUT = 1352.00
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONT 1 YEAR MEAN FLOW OA FLOW DAY FLOW DAY FLOW
2313A1 9 72 64.00 16 47.00
10 72 74.00 14 72.00
11 72 166.00 4 241.00
12 72 133.00 4 128.00
1 73 133.00 5 118.00
2 73 292.00 3 324.00
3 73 1010.00 2 454.00
4 73 750.00 7 285.00 21 1520.00
5 73 243.00 4 386.00 19 136.00
6 73 73.00 10 70.00
7 73 19.00 14 17.00 31 12.00
8 73 28.00
?313 8 1 9 72 21.00 16 16.00
10 72 25.00 14 24.00
1) 72 38.00 4 56.00
1? 72 28.00 4 27.00
1 73 10.00 5 17.00
2 73 33.00 3 37.00
3 73 91.00 2 41.00
4 73 166.00 7 63.00 21 335.00
5 73 65.00 4 103.00 19 36.00
6 73 16.00 10 15.00
7 73 5.70 14 5.20 31 3.50
8 73 9.40
-------
TRIBUTARY FLOW INFORMATION FOP MAINE 6/25/74
LA
-------
APPENDIX B
PHYSICAL AND CHEMICAL DATA
K - Value is less than indicated
J - Value known to be in error
-------
STORET RETRIEVAL DATE 74/06/25
231301
47 14 42.0 068 18 18.0
LONG LAKE
23 MAINE
1 1EPALES
3
21112•2
0013 FEET DEPTH
DATE
FROM
TO
72/06/06
72/08/08
72/09/28
TIME DEPTH
OF
DAY FEET
08 25 0000
15 00 0000
12 12 0000
32217
CHLPPHYL
A
UG h
3.3J
4.3J
8.61
DATE
FROM
TO
TIME DEPTH
OF
DAY FEET
72/06/06 08 25 0000
08 25 0012
72/08/08 15 00 0000
15 00 0004
15 00 0015
72/09/28 12 12 0000
12 12 0004
12 12 0010
00010
00300
00077
00094
00400
00410
00630
00610
00665
00666
WATER
DO
TRANSP
CNDUCTVY
PH
T
ALK
N026N03
NH3—N
PHOS—TOT
PHOS—DIS
TEMP
SECCHI
FIELD
CACO3
N-TOTAL
TOTAL
CENT
MG/L
INCHES
MICRONHO
SU
MG/L
MG/L
MG/L
MG/L P
MG/L P
11.9
11.4
18.4
18.4
13.0
12.9
96
113
10.0
11.0
9.0
9.2
9.2
7.2
80 7.30
90 7.30
92 7.40
90 7.40
90 7.30
85 7.35
83 7.40
83 7.40
23 0.300
24 0.330
26 0.140
27 0.140
27 0.130
29 0.100
28 0.100
29 0.110
0 .050
0.040
0.070
0.060
0.060
0.0 70
0.070
0.070
0.0 12
0.0 10
0.008
0.007
O • 006
0.011
0.011
0.0 12
0.008
0.004
0.005
0.005
0.005
0.008
0.006
0.117
-------
STORET RETRIEVAL DATE 74/06/25
231302
47 10 18.0 068 15 18.0
LONG LAKE
23 MAINE
1 1EPALES
3
2111202
0014 FEET DEPTH
DATE
FROM
TO
72/06/06
72/08/08
72/09/ 28
TIME DEPTH
OF
DAY FEET
08 45 0000
14 45 0000
11 50 0000
32217
C HI R PH V L
A
UG/L
5.3J
4 • 4J
13.7J
DATE
FROM
TO
TIME DEPTH
OF
DAY FEET
72/06/06 08 45 0000
08 45 0014
72/08/08 14 45 0000
14 45 0004
14 45 0012
72/09/28 11 50 0000
11 50 0004
11 50 0010
00010
00300
00077
00094
00400
00410
00630
00610
00665
00666
WATER
DO
TRANSP
CNOUCTVY
PH
T
ALK
N02&N03
NH3-N
PHOS-TOT
PHOS—DIS
TEMP
SECCHI
FIELD
CACO3
N—TOTAL
TOTAL
CENT
MG/L
INCHES
MICROMHO
SI)
MG/L
MG/I
12.8
12.6
18.3
18.2
13.0
12.9
11.2
11.2
9.0
9.0
8.0
9.4
108
109
77
80 7.50
80 7.50
90 7.30
90 7.20
90 7.10
82 7.40
80 7.40
80 7.40
22 0.240
22 0.230
28 0.140
26 0.140
26 0.140
28 0.090
27 0.090
28 0.100
0.040
0.030
0.0 70
0.070
0.060
0.070
0.070
0.070
0.018
0.004
0.00 7
0.009
0.005
0.012
0.011
0.0 10
0.004
0.003
0.007
0.006
0.002
0.008
0.006
0.007
-------
STORET RETRIEVAL DATE 74/06/25
231303
47 10 42.0 068 11 30.0
LONG LAKE
23 MAINE
IIEPALES 2111202
3 0075 FEET DEPTH
00010 00300 00077 00094 00400 00410 00630 00610 00665 00666
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH T ALK NO2 NO3 PIN3-N PHOS—TOT PHOS-DIS
FROM OF TEMP SECCHI FIELD CACO3 N—TOTAL TOTAL
TO DAY FEET CENT MG/L £MCHES MICROMNO SU MG/L MG/I MG/L MG/I P MG/I P
72/06/06 09 06 0000 12.0 10.3 120 80 7.50 24 0.260 0.050 0.006 0.005
09 06 0073 4.9 10.2 80 7.00 22 0.270 0.070 0.010 0.004
72/08/08 15 25 0000 132 90 7.40 26 0.120 0.070 0.005 0.007
15 25 0004 18.4 7.8 90 7.40 27 0.140 0.060 0.005 0.005
15 25 0015 18.4 9.0 90 7.40 27 0.140 0.060 0.006 0.004
15 25 0020 18.1 6.0 90 7.20 26 0.130 0.070 0.006 0.005
15 25 0030 17.2 10.8 90 7.20 26 0.130 0.050 0.007 0.004
15 25 0040 17.2 8.2 90 7.00 26 0.180 0.060 0.005 0.004
72/09/28 11 11 0000 76 80 7.40 28 0.080 0.060 0.012 0.007
11 11 0004 13.6 9.3 80 7.35 27 0.080 0.070 0.012 0.007
11 11 0015 13.6 9.0 80 7.30 27 0.080 0.070 0.012 0.006
II 11 0035 13.5 9.2 80 7.30 26 0.080 0.070 0.012 0.007
11 11 0055 13.4 9.6 80 7.30 26 0.080 0.070 0.012 0.007
32217
DATE TIME DEPTH CHLRPHYL
FROM OF A
TO DAY FEET UG/L
72/06/06 09 06 0000 3.8J
72/08/08 15 25 0000 4.2)
72/09/28 11 11 0000 14.6J
-------
APPENDIX C
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
K - Value is less than indicated
J - Value known to be in error
-------
STORET RETRIEVAL DATE 74/06/25
2313A1 LS2313A1
47 10 00.0 068 16 00.0
OUTLET OF LONG LAKE
23 15 SQUARE LAKE
0/LONG LK—AROOSTOCK Co.
BARN BROOK RD BRDG IN SINCLAIR
I IEPALES 2111204
4 0000 FEET DEPT -4
00630 00625 00610 00671 00665
DATE TIME DEPT 1 N0?&N03 TOT KJEL Nt-13—N PP-IOS—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL ORTHO
TO DAY FEET MG/L 4G/L MG/I MC /L P MG/L P
7?/09/16 0’) 05 0.120 0.325 0.054 0.00 5K 0.012
72/10/14 09 05 0.117 0.350 0.058 0.005K 0.011
72/11/04 08 30 0.312 0.820 0.034 0.005K 0.011
72/12/04 10 31 0.176 0.360 0.020 0.005K 0.012
73/02/03 09 15 0.220 0.800 0.050 0.006 0.010
73/03/02 19 30 0.210 0.310 0.015 0.005K 0.010
73/06/07 09 30 0.390 0.550 0.033 0.005K 0.010
73/04/21 09 00 0.500 0.340 0.016 0.005K 0.015
73/05/04 09 30 0.680 0.074 0.005K 0.015
73/05/19 09 00 0.231 0.320 0.007 0.005K 0.015
73/07/14 08 00 0.132 0.270 0.027 0.005K 0.010
73/07/31 18 00 0.042 0.880 0.054 0.005K 0.025
-------
2313B1 LS2313B1
47 10 30.0 068 16 00.0
MCLEAN BROOK
23 15 SQUARE LAKE
T/LONG LK—AROOSTOCK Co
BRDG NNE OF SINCLAIR
I 1EPALES
4
STORET RETRIEVAL DATE 74/06/25
2111204
0000 FEET
00630
00625
00610
00671
00665
DATE
TIME
DEPTH
4O2&NO3
TOT KJEL
NH3—N
PHOS—DIS
PHOS—TOT
FROM
OF
N-TOTAL
N
TOTAL
ORTHO
TO
DAY
FE T
MG/L
MG/L
MG/L
MG/L P
MG/L P
7?/09/16
09 15
0.833
0.650
0.170
0.007
0.020
72/10/14
09 20
0.800
0.600
0.138
0.005K
0.015
72/11/0’.
08 45
0.793
0.770
0.030
0.005K
0.010
73/04/07
09 35
1.240
0.740
0.042
0.005K
0.010
73/04/21
09 00
0.840
0.480
0.016
0.006
0.020
73/05/04
09 15
0.990
0.620
0.027
0.005K
0.015
73/05/19
08 50
0.510
0.790
0.054
0.011
0.020
73/06/10
08 20
0.470
0.660
0.044
0.005K
0.035
73/07/14
09 15
0.044
1.000
0.071
0.006
0.030
DEPTH
-------
STORET RETRIEVAL DATE 74/06/25
2313C1 LS2313C1
47 15 30.0 068 16 00.0
LITTLE RIVER
23 15 FRENCHVILLE
T/LONG LK-AROOSTOCK Co
BIRCH PT RD B DG SW OF CLEVELAND
11EPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME DEPTH NO2 NO3 TOT KJEL NH3-N PI10S—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL ORTHO
TO DAY FEET MG L MG/L MG/L MG/L P MG/L P
72/09/16 09 40 0.470 0.325 0.064 0.008 0.022
72/10/14 09 55 1.000 0.325 0.120 0.005K 0.014
72/11/04 09 40 0.750 0.520 0.027 0.005K 0.013
72/12/04 11 23 1.220 0.740 0.038 0.007 0.021
73/04/07 09 55 1.520 0.340 0.022 0.005K 0.015
73/04/21 09 30 1.160 0.520 0.022 0.008 0.045
73/05/04 09 00 0.760 0.500 0.018 0.006 0.025
73/05/1Q 08 25 0.720 0.660 0.034 0.011 0.030
73/06/10 09 00 0.780 0.690 0.029 0.008 0.030
73/07/14 08 45 0.690 0.630 0.037 0.008 0.020
73/07/31 18 30 0.750 0.870 0.011 0.090
-------
STORET RETRIEVAL DATE 74/06/25
231350 AS23)35 0 P000900
47 15 00.0 068 18 30.0
ST AGATHA
23 15 SQUARE LAKE
0/LONG LAKE
LONG LAKE
11EPALES 2141204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665 50051 50053
DATE TIME DEPTH NO?&N03 TOT KJEL NH3-N PHOS—DIS PHOS—TOT FLOW CONDUIT
FROM OF N-TOTAL TOTAL OPTHO RATE FLOW-MGD
TO DAY FEET MG/L MG/L MG/I MG/L P MG/I P INST MGD MONTHLY
63/01/25 12 00
CP(T)— 0.630 18.000 3.400 4.225 5.700 0.006
73/01/25 11 00
73/02/2? 11 00
CP(T)— 0.165 26.000 12.800 7.500 8.600 0.017
73/02/2 10 00
73/03/22 11 00
CP(T)— 2.700 9.950 2.400 1.580 2.800 0.076 0.059
73/03/23 10 00
73/04/25 11 00
CP(T)— 3.800 4.200 0.400 0.560 1.250
73/04/26 10 00
73/05/24 10 30
CPU)— 3.400 8.800 0.750 1.890 3.350 0.045 0.050
73/05/25 09 30
73/06/22 11 00 3.500 21.000 1.140 5.600 7.600 0.060 0.060
73/0 /01 10 00 0.210 5.300 0.660 4.400 5.800 0.035 0.039
73/08/2 .4 14 30 0.260 18.000 2.900 6.000 7.900 0.023 0.023
73/10/11 11 45
CP(T)— 0.220 11.000 2.000 3.780 5.200 0.044 0.041
73/10/12 10 45
73/10/31 13 00
CP(T)- 0.350 42.000 14.400 8.600 13.500 0.031 0.041
13/11/01 1? 00
73/12/03 12 00
CP(T)— 0.230 29.000 9.800 6.700 8.900 0.035 0.033
73/12/04 11 00
74/01/04 11 00
CPT— 2.320 15.500 3.680 3.840 5.300 0.049 0.120
74/0 1/OS 10 00
------- |