U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
ROCHDAlf POND
WORCESTER COUNT/
MASSACHUSETTS
EPA REGION I
WORKING PAPER No, 222
PACIFIC NORTHWEST ENVIRONMENTAL RESEARCH LABORATORY
An Associate Laboratory of the
NATIONAL ENVIRONMENTAL RESEARCH CENTER - CORVALLIS, OREGON
and
NATIONAL ENVIRONMENTAL RESEARCH CENTER - LAS VEGAS, NEVADA
VTGPO 697-032
-------
REPORT
ON
ROCHDALE POND
WORCESTER COUNTY
MASSACHUSETTS
EPA REGION I
WORKING PAPER No, 222
WITH THE COOPERATION OF THE
MASSACHUSETTS DIVISION OF WATER POLUUTION CONTROL
AND THE
MASSACHUSETTS NATIONAL GUARD
MARCH, 1975
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CONTENTS
Page
Foreword i i
List of Massachusetts Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 4
III. Lake Water Quality Summary 5
IV. Nutrient Loadings 10
V. Literature Reviewed 15
VI. Appendices 16
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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)L 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.
-------
m
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 Massachusetts Division of
Water Pollution Control for professional involvement and to the
Massachusetts National Guard for conducting the tributary samp-
ling phase of the Survey.
Thomas C. McMahon, Director, John R. Elwood, Supervisory
Sanitary Engineer, Eben Chesebrough, Senior Chemist, and Peter A.
Tennant, Senior Sanitary Engineer of the Massachusetts Division
of Water Pollution Control provided invaluable lake documentation
and counsel during the course of the Survey.
Major General Vahan Vartanian, the Adjutant General of Massa-
chusetts, and Project Officer Major William Flaherty, who directed
the volunteer efforts of the Massachusetts National Guardsmen, are
also gratefully acknowledged for their assistance to the Survey.
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IV
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF MASSACHUSETTS
LAKE NAME
Assabet-Concord River Impoundments
Northboro
Hudson
Maynard
Bill erica
Hager Pond
Matfield Impoundment
Rochdale Pond
Woods Pond
COUNTY
Worcester
Middlesex
Middlesex
Middlesex
Middlesex
Plymouth
Worcester
Berkshire
-------
ROCHDALE
POND
Tributary Sampling
Site
X Lake Sampling Site
Direct Drainage Area
Limits
f Sewage Treatment
Facility
Mi .
Scale
-------
ROCHDALE POND
STORE! NO. 2509
I. CONCLUSIONS
A. Trophic Condition:
Rochdale Pond, one of several small impoundments in the
headwaters of the French River system, is characterized by
slightly acid, brownish colored waters with low transparency
and low to moderate productivity. Rooted aquatic plants are
scarce, and the relatively low phytoplankton crops are repre-
sented primarily by diatoms and Chlorococcales of the types
commonly associated with eutrophic water bodies. The high
humic content and acid nature of the water are suggestive of
dystrophic conditions.
B. Rate-Limiting Nutrient:
From a nutrient standpoint, the results of the algal assay
indicate that Rochdale Pond was nitrogen limited at the time
the sample was collected (10/06/72). The pond data also indi-
cate nitrogen limitation; i.e., the inorganic nitrogen/dissolved
phosphorus ratios ranged from 4/1 to 8/1, and nitrogen limitation
would be expected.
However, the humic colored water, the composition and quantity
of phytoplankton associated with relatively high nutrient levels,
and the Secchi disc transparency, indicate that the primary
productivity of the pond more likely was light-limited.
-------
C. Nutrient Controllability:
1. Point sources—During the sampling year, Rochdale Pond
received a total phosphorus load at a rate over three times
that proposed by Vollenweider (in press) as "dangerous"; i.e.,
a eutrophic rate (see page 14). Now, Vollenweider's model
probably does not apply to water bodies with short hydraulic
retention times, and the mean hydraulic retention time of
Rochdale Pond is a short 4^ days. Nonetheless, the existing
trophic condition of the pond is evidence of excessive nutrient
loads.
It is calculated that the Village of Leicester contributed
9% of the total phosphorus load to the pond during the sampling
year. Even complete removal of phosphorus at this source would
only reduce the total phosphorus load to the pond to 61.5 Ibs/
2
acre/yr (6.9 g/m /yr); and it does not appear likely that phos-
phorus control at the Leicester wastewater treatment plant at
this time would result in a significant improvement in the
trophic condition of Rochdale Pond. However, if the phosphorus
contribution of the plant is increased in the future, the need
for phosphorus removal should be re-evaluated.
It is noted that there was an apparent loss of phosphorus
from the pond during the sampling year. It is believed that
the "loss" is the result of underestimation of phosphorus loads
in the process wastewater of the Carleton Woolen Company which
-------
is discharged to the French River below the outlet of Rochdale
Pond but upstream from the Survey outlet sampling station. The
loads from this source (subtracted from Survey outlet loads)
were calculated on the basis of a 12-hour-day operation (Anony-
mous, 1973); however, the mill more commonly operates 24 hours
a day (Chesebrough, 1975).
2. Non-point sources—During the sampling year, the phos-
phorus export rates of the French River and the unnamed tribu-
tary (E-l) were appreciably greater than the export rate of
Grindstone Brook (see page 14). The higher export rate of the
French River may be due to underestimation of the Leicester
load, but the much higher export rate of the unnamed stream
may be due to urban drainage in the community of Rochdale.
It is calculated that the non-point phosphorus exports of
the measured tributaries total about 86% of the total phosphorus
load, to the pond during the sampling year.
-------
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometry :
1. Surface area: 41 acres.
2. Mean depth: 5.9 feet.
3. Maximum depth: 16 feet.
4. Volume: 242 acre-feet.
5. Mean hydraulic retention time: 4% days.
B. Tributary and Outlet:
(See Appendix A for flow data)
1. Tributaries -
Name Drainage area* Mean flow*
2
French River 14.0 mi2 19.7 cfs
Grindstone Brook 2.5 mip 3.5 cfs
Unnamed tributary (E-l) 0.7 mi 1.0 cfs
Minor tributaries & 2
immediate drainage - 1.6 mi 2.4 cfs
Totals 18.8 mi2 26.6 cfs
2. Outlet -
French River 18.9 mi2** 26.6 cfs
C. Precipitation***:
1. Year of sampling: 71.7 inches.
2. Mean annual: 45.2 inches.
t Chesebrough, 1975; mean depth by random-dot method.
* Drainage areas are accurate within ±1%; gaged mean daily, monthly, and
normalized monthly flows are accurate within ±15%; and ungaged mean
daily, monthly, and normalized flows are accurate within ±20%.
** Includes area of lake.
*** See Working Paper No. 1, "Survey Methods, 1972".
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III. LAKE WATER QUALITY SUMMARY
Rochdale Pond was sampled three times during the open-water season
of 1972 by means of a pontoon-equipped Huey helicopter. Each time, sam-
ples for physical and chemical parameters were collected from two stations
on the pond and from a number of depths at each station (see map, page v).
During each visit, a single depth-integrated (near bottom to surface) sam-
ple was composited from the two 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, a
depth-integrated sample was collected from each of the stations for chloro-
phyll a^ analysis. The maximum depths sampled were 10 feet at station 1
and 8 feet at station 2.
The results obtained are presented in full in Appendix B, and the
data for the fall sampling period, when the pond essentially was 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.) 14.2
Dissolved oxygen (mg/1) 6.0
Conductivity (ymhos) 80
pH (units) 6.6
Alkalinity (mg/1) 10
Total P (mg/1) 0.045
Dissolved P (mg/1) 0.021
N0? + NO., (mg/1) 0.030
Ammonia fmg/1) 0.070
Secchi disc (inches) 36
FALL VALUES
(10/06/72)
Mean
14.7
7.4
124
6.7
12
0.059
0.027
0.040
0.075
ALL VALUES
43
Median
14.8
7.4
135
6.7
10
0.063
0.026
0.040
0.070
38
Maximum
15.0
8.6
155
6.9
16
0.072
0.033
0.050
0.090
57
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B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
06/04/72
08/04/72
'10/06/72
Domi
nant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Scenedesmus
Asterionella
Synedra
Fragilaria
Nitzschia
Other genera
Total
Dictyosphaerium
Dinobryon
Gloeocapsa
Scenedesmus
Cyclotella
Other genera
Total
Scenedesmus
Flagellates
Dinobryon
Fragilaria
Asterionella
Other genera
Number
per ml
226
226
93
75
69
218
907
831
470
145
136
118
316
2,016
1,175
331
316
271
151
1,084
Total
3,328
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8
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
06/04/72
08/04/72
10/06/72
Limiting Nutrient
1 . Autoclaved, fi
Spike (mg/1)
Control
0.010 P
0.020 P
0.050 P
0.050 P + 5.0
0.050 P + 10.
10.0 N
2. Discussion -
Station
Number
01
02
01
02
01
02
Study :
Itered, and nutrient
Ortho P
Cone, (mg/1)
0.033
0.043
0.053
0.083
N 0.083
0 N 0.083
0.033
The control yield of the assay
cornutum, indi
spiked -
Inorganic N
Cone, (mg/1
0.248
0.248
0.248
0.248
5.248
10.248
10.248
Chlorophyll a
(yq/1 )
(not done)
5.0
19.8
23.7
12.1
11.3
Maximum yield
) (mg/1 -dry wt.)
5.5
5.3
5.2
5.3
27.2
27.4
11.1
alga, Selenastrum capri-
cates that the potential primary productivity
of Rochdale Pond was moderately high at the time the assay
sample was collected (10/06/72).
Also,' the results indicate the pond was nitrogen limited.
Note that spikes of phosphorus alone did not stimulate a
-------
growth response, but the addition of nitrogen alone resulted
in a yield significantly greater than the control yield.
The pond data indicate nitrogen limitation in August as
well (the N/P ratio was 6/1) but phosphorus limitation in
June (the N/P ratio was 30/1).
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10
IV. NUTRIENT LOADINGS
(See Appendix C for data)
For the determination of nutrient loadings, the Massachusetts
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 March and April when two samples were collected
at most stations. Sampling was begun in September, 1972, and was
completed in September, 1973.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the New England 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 loadings for
unsampled "minor tributaries and immediate drainage" ("II" of U.S.G.S.)
2
were estimated by using the nutrient loads, in Ibs/mi /yr, in Grind-
2
stone Brook at station C-l and multiplying by the II area in mi .
The community of Leicester did not participate in the Survey, and
nutrient loads were determined using nutrient and flow data obtained
by the Massachusetts Division of Water Pollution Control**.
* See Working Paper No. 1.
** Anonymous, 1973.
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11
Also, Carleton Woolen Company discharges untreated process waste-
\
water to the French River below the outlet of Rochdale Pond but up-
stream from the Survey pond outlet sampling station (D-l). Nutrient
loads from this source also were calculated using nutrient and flow
data obtained by the Massachusetts Division of Water Pollution Control*,
and these loads (1,760 Ibs P and 54,950 Ibs N) were subtracted from the
Survey outlet nutrient loads measured at station D-l.
A. Waste Sources*:
1. Known municipal -
Name
Pop.
Served
Mean Receiving
Treatment Flow (mgd) Water
Leicester 100** sand filter 0.025
2. Known industrial -
Name Product Treatment
Trib. to Town
Meadow Brook
Mean Receiving
Flow (mgd) Water
Carleton woolens none
Woolen
Mills
0.743
(12-hour
day)
French River
(upstream from
Survey site D-l )
* Anonymous, 1973.
** Estimated from measured total phosphorus load (2.5 Ibs/capita/year).
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12
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
Ibs P/ % of
Source y_r total
a. Tributaries (non-point load) -
French River 1,980 71.5
Grindstone Brook 200 7.2
Unnamed tributary (E-l) 200 7.2
b. Minor tributaries & immediate
drainage (non-point load) - 130 4.7
c. Known municipal STP's -
Leicester 250 9.0
d. Septic tanks - Unknown
e. Known industrial - None
f. Direct precipitation* - 10 0.4
Total 2,770 100.0
2. Outputs -
Pond outlet - French River 3,460
3. Net annual P loss - 690 pounds
* See Working Paper No. 1.
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13
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
Ibs N/ % of
Source y_r total
a. Tributaries (non-point load) -
French River 41,160 60.4
Grindstone Brook 13,370 19.6
Unnamed tributary (E-l) 3,290 4.8
b. Minor tributaries & immediate
drainage (non-point load) - 8,560 12.6
c. Known municipal STP's -
Leicester 1,400 2.0
d. Septic tanks - Unknown
e. Known industrial - None
f. Direct precipitation* - 390 0.6
Total 68,170 100.0
2. Outputs -
Pond outlet - French River 55,950
3. Net annual N accumulation - 12,220 pounds
* See Working Paper No. 175.
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14
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
2 ?
Tributary Ibs P/mi /yr Ibs N/mi /yr
French River 141 2,940
Grindstone Brook 80 5,348
Unnamed tributary (E-l) 286 4,700
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 water 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".
Note that Vollenweider's model may not be applicable to
water bodies with very short hydraulic retention times.
Total Phosphorus Total Nitrogen
Units Total Accumulated Total Accumulated
Ibs/acre/yr 67.7 loss* 1,662.7 298.0
grams/m2/yr 7.57 - 186.4 33.4
Vollenweider loading rates for phosphorus
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Rochdale Pond:
"Dangerous" (eutrophic rate) 2.26
"Permissible" (oligotrophic rate) 1.13
* See discussion, page 2.
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15
V. LITERATURE REVIEWED
Anonymous, 1973. French and Quinebaug rivers, 1972: Part B.
List of wastewater discharges. MA Div. of Water Poll. Contr.,
Boston.
Chesebrough, Eben W., 1975. Personal communication (review of
preliminary report; pond morphometry; Carleton Woolen Company
discharge). MA Div. of Water Poll. Contr., Westboro.
Vollenweider, Richard A. (in press). Input-output models. Scheiwz,
Z. Hydrol.
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VI. APPENDICES
APPENDIX A
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR MASSACHUSETTS
11/26/74
LAKE CODE 2509
ROCHDALE POND
TOTAL DRAINAGE AREA OF LAKE
18.90
SUB-DRAINAGE
TRIBUTARY AREA
JAN
FEB
MAR
APR
MAY
NORMALIZED FLOWS
JUN JUL AUG
SEP
OCT
NOV
DEC
MEAN
2509A1
2509C1
2509D1
2509E1
2509ZZ
14.00
2.47
18.90
0.72
1.71
21.40
3.78
28.90
1.10
2.62
21.60
3.80
29.10
1.11
2.63
40.70
7.18
55.00
2.10
4.98
41.20
7.26
55.60
2.12
5.03
22.50
3.98
30.40
1.16
2.75
14.10
2.49
19.10
0.73
1.73
9.14
1.62
12.40
0.47
1.12
9.88
1.74
13.30
0.51
1.21
11.20
1.98
15.10
0.58
1.37
10.70
1.89
14.50
0.55
1.31
16.40
2.89
22.10
0.84
2.00
18.20
3.21
24.60
0.94
2.22
19.73
3.48
26.64
1.02
2.41
TOTAL DRAINAGE AREA OF LAKE =
SUM OF SUB-DRAINAGE AREAS =
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR MEAN FLOW DAf
2S09A1
2509C1
9
10
11
12
1
2
3
4
5
6
7
ft
9
9
10
11
12
1
2
3
4
5
6
7
8
q
72
72
72
72
73
73
73
73
73
73
73
73
73
7?
72
7?
7?
73
73
73
73
73
73
73
73
73
10.10
12.50
40.50
54.10
31.50
11.00
31.80
44.50
31.70
21.30
25.20
14.10
12.50
1.60
2.?0
7.10
9.50
5.60
1.90
5.60
7.80
5.60
3.80
4.50
2.50
2.20
9
14
11
9
13
10
10
14
12
9
14
8
9
14
11
9
13
10
10
14
12
9
14
11
6
18.90
18.90
FLOW DAY
9.40
15.30
46.10
80.90
22.80
10.30
60.30
40.70
43.80
10.70
16.50
9.40
1.70
2.70
8.10
14.30
4.00
1.80
10.60
7.20
7.70
1.90
2.90
2.40
1.70
24
28
24
28
SUMMARY
TOTAL FLOW IN
TOTAL FLOW OUT
320.01
320.10
FLOW DAY
FLOW
24.10
70.70
4.20
12.50
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TRIBUTARY FLOrf INFORMATION FOR MASSACHUSETTS
11/26/74
LAKE CODE 2509
ROCHDALE POND
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR
250901
2509E1
2509ZZ
9
10
11
12
1
2
3
4
5
6
7
8
9
9
10
11
12
1
2
3
4
5
6
7
8
9
9
10
11
12
1
2
3
4
5
6
7
8
9
72
72
72
72
73
73
73
73
73
73
73
73
73
72
72
72
72
73
73
73
73
73
73
73
73
73
72
72
72
72
73
73
73
73
73
73
73
73
73
MEAN FLOW DAY
FLOW DAY
FLOW DAY
FLOW
13.60
17.00
54.60
73.10
42.50
14.90
43.00
60.00
42.90
28.80
34.20
19.00
16.90
0.50
0.60
2.10
2.80
1.60
0.60
1.60
2.30
1.60
1.10
1.30
0.70
0.60
1.20
1.50
4.90
6.60
3.90
1.30
3.90
5.40
3.90
2.60
3.10
1.70
1.50
9
14
11
9
13
10
10
14
12
9
14
26
8
9
14
11
9
13
10
10
14
12
9
14
26
8
12.70
20.60
62.20
109.00
30.80
13.90
81.50
55.00
59.20
14.50
22.30
12.70
12.70
0.50
0.80
2.40
4.20
1.20
0.50
3.10
2.10
2.30
0.55
0.85
0.48
0.48
24
28
24
28
32.50
95.40
1.20
3.60
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APPENDIX B
PHYSICAL and CHEMICAL DATA
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STORET RETRIEVAL DATE 74/11/26
250901
42 11 45.0 071 54 17.0
ROCHDALE POND
25 MASSACHUSETTS
00010
DATE TIME DEPTH WATER
FROM OF TEMP
TO DAY FEET CENT
72/06/04
72/08/04
72/10/06
12
12
30 0000
30 0010
13 05 0000
13 05 0004
12 45 0000
12 45 0004
12 45 0007
20.5
14.6
23.8
15.0
14.7
11EPALES
00300
DO
MG/L
8.8
6.0
6.0
H.6
8.2
00077
TRANSP
SECCHI
INCHES
38
36
57
00094
CNDUCTVY
FIELD
MICROMHO
70
950
199
248
80
90
120
3
00400
PH
su
6.60
6.20
6.55
6.55
6.80
6.90
6.75
00410
T ALK
CAC03
MG/L
10K
10K
12
12
10K
16
14
2111202
0008
00630
N02&N03
N-TOTAL
MG/L
0.090
0.730
0.100
0.240
0.040
0.040
0.050
FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.040
0.960
0.240
0.450
0.070
0.070
0.090
00665
PHOS-TOT
MG/L P
0.063
0.062
0.109
0.094
0.072
0.065
0.064
00666
PHOS-OIS
MG/L P
0.027
0.028
0.071
0.064
0.033
0.027
0.030
32217
DATE TIME DEPTH CHLRPHYL
FROM OF A
TO DAY FEET UG/L
72/08/04 13 05 0000
7P/10/06 1? 45 0000
19.8J
12.U
VALUE KNOWN TO tjE LESS
TH4N INDICATED
J VALUE KNOWN TO BE IN ERROR
-------
STORET RETRIEVAL DATE 74/11/26
250902
42 11 51.0 071 54 33.0
ROCHDALE POND
25 MASSACHUSETTS
DATE
FROM
TO
72/06/04
72/08/04
72/10/06
TIME DEPTH
OF
DAY FEET
12 50 0000
12 50 0008
13 15 0000
13 15 0004
13 00 0000
13 00 0004
13 00 0006
00010
WATER
TEMP
CENT
20.5
12.3
24.3
14.9
14.2
00300 00077 00094
00 TRANSP CNDUCTVY
SECCHI FIELD
MG/L INCHES MICROMHO
9.0
6.2
7.6
6.7
6.0
37
36
55
90
460
190
185
150
150
155
11EPALES
3
00400
PH
SU
6.90
6.50
6.70
6.80
6.70
6.65
6.65
00410
T ALK
CAC03
MG/L
10K
10K
10
11
10K
10K
10K
2111202
OOOB
00630
N02&N03
N-TOTAL
MG/L
0.060
0.360
0.070
0.080
0.030
0.040
0.040
FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.060
0.380
0.140
0.130
0.080
0.070
0.070
00665
PHOS-TOT
MG/L P
0.039
0.042
0.079
0.082
0.062
0.048
0.045
00666
PHOS-DIS
MG/L P
0.009
0.025
0.053
0.055
0.021
0.023
0.026
32217
DATE TIME DEPTH CHLRPHYL
FROM OF A
TO DAY FEET UG/L
72/06/04 1? 50 0000 5.0J
72/08/04 13 15 0000 23.7J
72/10/06 13 00 0000 11.3J
VALUE KNOWN TO HE LESS
THAN INDICATED
J .VftLUE KNOWN TO BE IN ERROR
-------
APPENDIX C
TRIBUTARY DATA
-------
STORET RETRIEVAL DATE 74/11/26
2509A.1 LS2509A1
42 12 00.0 071 55 00.0
OUTLET OF GREENVILLE POND
25 7.5 LEICESTER
I/ROCHDALE POND
PLEASANT ST 8RDG
11EPALES 2111204
4 oooo FEET
DATE
FROM
TO
72/09/09
72/10/1^
72/11/11
72/12/09
73/01/13
73/02/10
73/03/10
73/03/24
73/04/28
73/05/12
73/06/09
73/07/14
73/09/08
00630 00625
TIME DEPTH N02^N03 TOT KJEL
OF N-TOTAl M
DAY FEET
11
17
08
09
08
09
09
09
13
12
30
40
00
00
15
00
00
00
30
00
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
.046
.100
.195
.189
.168
.176
.198
.170
.120
.110
.022
.240
.034
MG/L
0.
0.
1.
0.
0.
0.
1.
3.
0.
0.
1.
0.
0.
500
850
200
400
400
420
200
300
520
560
200
840
960
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL OPTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
076
085
005K
046
048
110
357
088
035
020
066
120
063
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
0
.018
.024
.029
.017
.012
.025
.040
.013
.038
.027
.029
.032
.008
MG/L P
0.068
0.071
0.065
0.037
0.025
0.035
0.065
0.045
0.075
0.065
0.065
0.060
0.060
DEPTH
LESS H< M
-------
STORE! RETRIEVAL DATE 74/11/26
2509H1 LS2509B1
42 12 00.0 071 55 00.0
NO NAME
25 7.5 LEICESTER
T/ROCHOALE POND
UNIMPROVED RD RRDG S EDGE OF GREENVILLE
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/09/09
72/10/14
72/11/11
73/02/10
73/03/10
73/03/24
73/04/14
73/04/23
73/05/12
73/06/09
73/07/14
73/08/11
73/09/08
00630 00625
TIME DEPTH N02S.N03 TOT KJEL
OF N-TOTAL N
DAY FEET
11
07
08
09
09
11
08
12
11
12
40
45
15
15
15
40
30
05
50
15
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
.350
.180
.221
.600
.510
.450
.350
.147
.072
.380
.210
.210
.160
MG/L
1.000
0.
0.
0.
1.
1.
0.
0.
0.
0.
1.
0.
2.
350
420
660
150
680
540
880
650
420
760
690
600
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
100
132
005K
030
460
037
031
058
025
006
170
079
147
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
015
005K
005K
007
010
005K
009
006
007
006
012
009
005K
MG/L P
0.189
0.010
0.022
0.010
0.020
0.010
0.015
0.010
0.015
0.020
0.020
0.020
0.04Q
K VALUF Kr-!0'»i'-! T-'J •
-------
STORET RETRIEVAL DATE 74/11/36
2509C1 LS2509C1
42 12 30.0 071 55 00.0
GRINDSTONE BROOK
25 7.5 LEICESTER
T/ROCHDALE POND
ST HWY 56 BRDG
11EPALES 2111204
4 0000 FEET
DATE
FROM
TO
72/09/09
72/10/14
72/11/11
72/12/09
73/01/13
73/02/10
73/03/10
73/03/24
73/04/14
73/04/28
73/05/12
73/06/09
73/07/14
73/08/11
73/09/08
00630 00625
TIME DEPTH NOP&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
1?
08
08
10
07
10
08
11
08
11
1?
10
00
15
20
00
35
00
00
52
15
00
05
30
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.400
.062
.044
.160
.154
.151
.138
.115
.050
.052
.062
.130
.175
.154
.410
MG/L
1.
1.
0.
1.
0.
0.
5.
0.
0.
0.
1.
2.
2.
2.
3.
200
300
630
470
710
880
800
895
690
860
000
300
900
400
700
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
189
115
C05K
031
075
144
200
037
052
039
044
120
200
105
176
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
022
012
005K
006
005K
010
007
005K
005K
008
009
0?5
028
036
010
MG/L P
0.073
C.012
0.017
0.013
0.015
0.010
0.015
0.010
0.005K
0.012
0.025
0.050
0.065
0.070
0.045
DEPTH
L.FSS TM
I--"; 1C
-------
STORE! RETRIEVAL DATE 74/11/26
2509D1 LS250901
42 12 00.0 071 54 30.0
FRENCH RIVER
25 7.5 LEICESTER
0/ROCHOALE POND
BELO MILL DAM AT ROCHDALE
11EPALES 2111204
4 0000 FEET
DEPTH
DATE
FROM
TO
72/09/09
72/10/14
72/11/11
72/12/09
73/01/13
73/02/10
73/03/10
73/03/24
73/04/14
73/04/28
73/05/12
73/06/09
73/07/14
73/08/26
73/09/08
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL M
DAY FEET
11
08
07
10
07
10
08
08
11
09
13
13
11
45
05
30
15
30
30
45
00
50
15
10
45
45
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.042
.150
.230
.168
.189
.260
.210
.160
.132
.079
.060
.330
.046
.0?8
MG/L
1.
0.
0.
0.
1.
1.
3.
0.
0.
3.
2.
150
900
840
560
260
100
900
930
660
200
800
5.400
2.
600
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
1.
0.
120
180
087
052
940
190
090
510
051
017
290
140
800
260
MG/L
0.
0.
0.
9.
0.
0.
0.
0.
0.
0.
0.
0.
0.
p
017
036
017
013
Oil
032
013
088
018
068
048
132
021
MG/L P
0.077
0.095
0.058
0.046
0.035
0.063
0.055
0.030
0.125
0.073
0.055
0.220
0.230
0.230
0.090
-------
STORE! RETRIEVAL DATE 74/11/26
2509E1 LS2509E1
42 12 00.0 071 54 30.0
NO NAME
25 7.5 LEICESTER
T/ROCHDALE POND
RIVER ST 8RDG NW EDGE OF ROCHDALE
11F.PALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/09/09
7P/10/14
72/11/11
72/12/09
73/01/13
73/02/10
73/01/10
73/03/24
73/04/1^
73/04/28
73/05/12
73/06/09
73/07/14
73/08/26
73/09/08
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL M
DAY FEET
07
07
12
08
10
08
11
09
1?
12
11
50
00
00
30
30
35
47
30
30
00
20
MG/L
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
.390
.170
.120
.210
.060
.890
.600
.600
.620
.360
.210
.200
.300
.252
.014
MG/L
1.
0.
1.
1.
0.
0.
2.
0.
0.
0.
0.
2.
1.
1.
2.
050
750
700
600
630
170
400
690
820
400
410
100
470
POO
500
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
470
140
005K
099
135
072
140
048
042
027
025
250
060
240
980
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
p
044
022
015
021
007
005K
006
009
Oil
012
012
026
019
054
076
MG/L P
0.300
0.036
0.190
0.044
0.025
0.015
0.025
0.020
0.015
0.020
0.025
0.070
0.060
0.250
0.370
I'HIO
-------
STORET RETRIEVAL DATE 74/11/26
2509F1 LS2509F1
42 12 30.0 071 55 30.0
TOWN MEADOW BROOK
25 7.5 LEICESTER T
/ROCHDALE POND
GREEN ST BRDG 8ELO LEICESTER STP
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/09/09
72/10/14
72/11/11
73/01/13
73/03/10
73/03/29
73/04/28
73/05/1?
73/06/09
73/07/14
73/08/26
73/09/08
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
11
07
07
08
08
08
11
11
12
15
35
15
00
20
15
30
30
15
MG/L
0.470
0.140
0.195
0.390
0.168
0.2?0
0.126
0.160
0.280
0.016
0.189
0.210
MG/L
0.450
0.500
0.790
0.560
1.680
0.780
0.480
0.630
1.600
0.925
0.270
1.570
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL OPTHO
MG/L
0.092
0.085
0.005K
0.168
0.120
0.105
0.056
0.046
0.050
0.100
0.054
0.068
MG/L P
0.210
0.054
0.040
0.084
0.028
0.038
0.060
0.061
0.10ft
0.023
0.154
0.189
MG/L P
0.292
0.079
0.068
0.140
0.050
0.050
0.085
0.100
0.155
0.185
0.210
0.260
K \/fcL'.JE KNOW''1 TO
Lfc'SS THIN IMOIC ^
-------
STORE! RETRIEVAL DATE 74/11/26
2509F2 LS2509F2
42 14 30.0 071 55 00.0
TOWN MEADOW BROOK
25 705 LEICESTER
T/ROCHDALE POND
RT 9 BROG ABOV LEICESTER STP
11EPALES 2111204
4 0000 FEET
DATE
FROM
TO
72/09/09
72/10/14
72/11/11
72/12/09
73/02/10
73/03/10
73/34/28
73/05/12
73/06/09
73/07/14
73/08/26
73/09/08
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
11
07
09
1?
12
08
08
14
11
13
55
30
00
35
00
15
00
05
00
30
MG/L
0
0
0
0
0
0
9
0
0
0
0
0
.530
.082
.100
.115
.090
.110
.026
.023
.010K
.?40
.014
.016
MG/L
0.
0.
2.
0.
1.
0.
0.
0.
2.
0.
1.
950
550
940
290
540
280
440
630
200
935
540
00610 00671 00665
NH3-N PHOS-OIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
152
115
005K
027
033
530
010
019
065
176
072
060
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
.160
.005K
.006
.005K
.005K
.011
.006
.006
.007
.005K
.005K
.007
MG/L P
0.250
0.018
0.019
0.014
0.020
0.020
0.010
0.015
0.012
0.020
0.015
0.025
DEPTH
\/
------- |