WOONASQUATUCKET RIVER STUDY
BRYANT COLLEGE ADVANCED WASTEWATER TREATMENT FACILITY AND
STILLWATER, CAPRON, AND GEORCIAVILLE PONDS
OCTOBER, 1974
MAY, 1975
REPORT OF DATA
U.S. ENVIRONMENTAL PROTECTION AGENCY
REGION I
SURVEILLANCE AND ANALYSIS DIVISION
NEEDHAM HEIGHTS, MASSACHUSETTS 02194
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TABLE OF CONTENTS
OVERVIEW
SUMMARY
CONCLUS IONS
RECOMMENDATIONS
APPROACH
BRYANT COLLEGE AWWTF AND THE “POLISHING POND”
Bryant College AWWTF
“Polishing Pond”
THE IMPOUNDMENTS
RESULTS
DISCUSSION OF RESULTS
Bryant College AWWTF
“Polishing Pond”
Impoundments
Water Quality Stations
Sediment Stations
Chemical Analyses
Sediment Oxygen Demand (SOD)
Biology Stations

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LIST OF FIGURES
Figure
1 Study Area Showing Sampling Stations
2 Bryant College Advanced Wastewater Treatment Facility,
Smithville, Rhode Island and “Polishing Pond”
3 SunlIght Intensity and Dissolved Oxygen Measurements Versus
Time at Station CRDOO1
4 Sunlight Intensity and Oxygen Saturation Versus Time at
Station CRDOO1
5 Sunlight Intensity and Dissolved Oxygen Measurements Versus
Time at Station CRDOO2
6 SunlIght Intensity and Oxygen Saturation Versus Time at
Station CRDOO2

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LIST OF TABLES
Table
1 AWWTF and Continuous Recording DO — Stations, Dates Sampled,
Numbers and Types of Samples Collected and Analyzing Laboratory
2 Water Quality and “Polishing Pond” — Stations, Dates Sampled,
Numbers and Types of Samples Collected and Analyzing Laboratory
3 SedIment Stations, Dates Sampled, Numbers and Types of Samples
Collected and Analyzing Laboratory
4 AbbrevIations Used In the Report
5- Station Location and Description
6 Bryant College WWTF Influent and Effluent Analyses, Smithville,
Rhode Island
7 “Polishing Pond” and Impoundment Water Quality Analyses —
Woonasquatucket River Study, Rhode Island
8 Chemical Sediment Analyses — Woonasquatucket River Study,
Rhode Island
9 Qualitative Benthic Survey

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LIST OF APPENDIXES
Appendix
I NPDES Permit No. R10100285 Bryant College
It State of Rhode Island Water Quality Standards

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WOONASQUATUCKET RIVER STUDY
BRYANT COLLEGE ADVANCED WASTEWATER TREATMENT FACILITY AND
STILLWATER, CAPRON, AND CEORGIAVILLE PONDS
TOBER, 1974
OVERVIEW
During October, 1974, the United States Environmental Protection
Agency (EPA) Region I, Surveillance and Analysis Division’s (S & A)
personnel conducted a study of the advanced wastewater treatment facility
(ANWTF) at Bryant College, Smithfield, Rhode Island, and three impoundments
on the Woonasquatucket River at and below the point of discharge of the
AWWTF effluent. The study area is shown in Figure 1.
The purpose of the study was twofold: 1) evaluate the AWWTF
in terms of five—day biochemical oxygen demand (BOD 5 ), ammonia—nitrogen,
and total phosphorus removal efficiencies; and 2) determine if
the waters receiving the discharge from the AWWTF are being measurably
affected by the discharge in terms of oxygen depletion by oxygen demanding
material and nutrient enrichment from the phosphorus in the waste.
SU1IMARY
The AWWTF is operated in the extended aeration mode of the activated
sludge process with facilities for phosphorus removal. The facility
has a laboratory but does not perform all the testing normally considered
routine for running an activated sludge unit.
During the study, the AWWTF was experiencing operational problems,
such as a t downet clarifier, heavy foaming in the aeration tanks, and
no dissolved oxygen in the operating clarifiers. Nevertheless, the AWWTF

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was producing an effluent which, with the exception of total phosphorus
concentrations, was well within the NPDES requirements.
The small impoundment on the college property receiving the AWWTF
discharge, referred to in the study as the “polishing pond”, was in an
advanced stage of eutrophication, reflected by high DO concentrations and
plankton algal count. The “polishing pond” was green during the study.
The water quality in the Woonasquatucket River impoundments below the
IIWWTF discharge does not appear to be adversley affected by the discharge.
The only exception is higher phosphorus concentrations in the downstream
sediments. The college is relatively new, however, and the long—term
effects of this discharge, if any, cannot be predicted at this time.
CONCLUSIONS
1. The AM4TF effluent (WQTTO2), with the exception of total
phosphorus, is meeting NPDES permit limitations.
2. The “polishing pond”, if not considered a part of the AWWTF, is
in an advanced stage of eutrophication. If the “polishing pond”
is considered a part of the AWWTF, the total phosphorus limitation
established in the permit is being exceeded.
3. The IiWWTF laboratory is not running routine “operating analyses”
necessary to properly monitor and operate the activated sludge
process.
4. The AWWTF was experiencing operational problems during the study
such as low DO in the final clarifiers, and heavy foaming in the
aeration basins.

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5. The MJWTF discharge haq no adverse effects on water quality of the
Woonasquatucket River impoundments at this time. The sediments
at some sampling sites below the discharge did indicate higher
total phosphorus values than found in the sediment at the sampling
site upstream of the discharge.
6. The college is relatively new, and the effects, if any, of long—
term discharge cannot be predicted from the results of this study.
7. The water .quallty of the Woonasquatucket River impoundment
influenced by the AWWTF discharge meets the State of Rhode
Island’s Class “B” requirements, with the exception of total
coliform concentrations. The AWWTF does not appear to be the
cause of this violation as evidenced by the low counts in the
AWWTF and “polishing pond” discharges. Also, the upstream
impoundment station has total coliform counts in violation of
Class “B” waters.
RECONMENDATIONS
1. The operation of the unit process for phosphorus removal should
be evaluated and steps taken to produce an effluent which meets
permit conditions. Perhaps EPA, Region I, Operation and
Maintenance Section personnel could offer assistance in this as
well as with other operational problems, such as heavy foaming
in the aeration basins, DO problems in the final clarifiers,
sludge wasting practices, etc.
2. Clean up the “polishing pond” if it is nota part of the treatment
process.

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3. A long—term monitoring program on the Woonasquatucket River
impoundments with regard to phosphorus, chlorophyll a, plankton,
and any other indication of eutrophication should be initiated.
This study together with the relative newness of the AWWTF
discharge should give us an excellent handle on any eutrophication
trends directly attributable to the discharge.
APPROACH
The sampling was divided into two parts: 1) the AWWTF (Stations
WQTTO1 and WQTTO2) and the discharge from a small natural pond (WQTEO1)
which receives the A JWTF effluent. This small pond, for the sake of this
report, will be referred to as a “polishing pond”; and 2) The receiving
vaters (three impoundments known as Stiliwater, Capron, and Georgiaville
Ponds). The report shall refer to these three ponds collectively as
“the impoundments”.
All samples, with the exception of those at the AWWTF were collected
manually. All the composite samples collected at the AWWTF were time
composited using automatic samplers. All samples, with the exception
of those.taken for field measurements, such as temperature, pH, and
chlorine residual, were hand delivered by field personnel to EPA’s,
Region I, Needham Heights Laboratory (NERL). Some of the samples were
analyzed at NERL while others were shipped to EPA’s Cincinnati Laboratory
(NFIC). Tables 1 — 3 describe the analyses and analyzing laboratory.
Standard EPA, Region I, chain of custody procedures were in effect
at all times.

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Table 4 lists all abbreviations and/or symbols used throughout the
report.
BRYANT COLLEGE AWWTF AND THE “POLISHING POND”
Bryant College AWWTF
The AWWTF is designed for a 651 cmd or a 0.172 mgd hydraulic load.
The process flow diagram is shown in Figure 2. The AWWTF was issued a
final NPDES permit on August 20, 1974, (Permit No. RI 0100285). A copy
of the issued permit is contained in Appendix I.
The facility is a complete mix modification of the activated sludge
process operated in the extended aeration (EA) mode. In addition, the
facility used chemical coagulation with alum and flocculant aid, inclined
tray settlers, and multi-media filters for phosphorus removal. The
influent to and effluent from the AWWTF were sampled during the study.
These locations are shown on Figures 1 and 2 and described in Table 5.
During the study, EPA personnel found the plant was experiencing
operational problems. Some of these were readily discernible, while
others were learned from talking with the AWWTF operator. The operator
supplied al1 historical, operation, and maintenance information discussed
below.
1. Lack of DO in the aeration tanks. There was no measurable DO in
the aeration tanks despite the recent installation of an aerated
equilization basin at the headworks of the AWWTF. One reason
for the lack of DO during the study was that the DO diffusers
in the equilization basin had been shut do in over the weekend
in an attempt to keep oil and grease from reaching the aeration

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6
basins. The equalization basin doubles as a grease trap and
the aeration prevented proper baffling of the grease and other
skimmings. The lack of oxygen and the low weekend flows which
produced long detention times in the basin resulted in septic
or nearly septic wastewater being pumped into the aeration tanks.
Since the aeration capacity appears marginal with normal waste—
water, this septic waste really caused problems in the aeration tanks.
2. One of the smaller parallel treatment units was Out of order.
This was caused by breakage of the sludge collection mechanism
in the secondary clarifier causing sludge buildup resulting in
septicity and sludge bulking. This unit was taken off line and
was still not operating properly by the end of the study.
3. Excessive foaming was visible on the two larger aeration tanks,
and with the exception of one day, heavy brown foam covered these
tanks. Usually this type of foam indicates too long a sludge age.
Increased sludge wasting is usually a stock solution to this
problem. The operator indicated that sludge was not wasted
regularly. Sludge is only wasted when a rising sludge blanket
•is visible in the final clarifier. The last wasting had been
several months before our visit and was approximately 10,000 gallons.
4. High water alarms, signalling hydraulic surges, sounded several
times during the study.
Polishing Pond
The discharge from the AWWTF enters a small pond on the college
property. The discharge (Station WQTEO1) from this pond enters StiJ.lwater

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Pond and is shown on Figures 1 and 2 and described in Table 5. The
polishing pond was green with phytoplankton during the entire study
period.
LT}IE IMPOUNDMENTS
Stillwater, Capron, and Georgiaville Ponds are the downstream
impoundments immediately below Stilivater Reservoir. Stiliwater Pond is
approximately 1.45 .kilometers (0.9 miles) long; Capron Pond, 0.56 kilometers
(0.35 miles) long; and Georgiaville Pond, 1.61 kilometers (1.0 mile) long.
The discharge from the AWWTF enters Stiliwater Pond via a small tributary
just downstream of the Route 104 bridge in Smithfield, Rhode Island. Water
quality and Benthic samples were collected at selected stations. Figure 1
shows these stations. Table 5 describes the sampling locations. Tables 2 and 3
give the number of samples collected at each station and the type of analyses
performed. The flow during the survey period as measured at the Centerdale
U.S. Geological Survey Station averaged 1.05 cubic meters per second (cms)
or 37.0 cubic feet per second (cfs). The seven consecutive day low flow with
a recurrence interval of ten years for this gage is 0.24 cms or 8.3 cfs. This
gage is approximately 4.5 kilometers (2.8 miles) below the Georgiaville Pond
outlet.
In addition to the water and benthic samples collected, two recording
dissolved oxygen (DO) — temperature meters were installed: one in Stillwater
Pond at the Route 116 bridge and one in Georgiaville Pond just above the outlet.
Figure 1 and Table 5 show and describe the installation locations, respectively.
A recording pyrheliometer, an instrument for measuring sunlight intensity, was
set up on the roof of the AWWTF Control Building to aid in interpreting the DO

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results. Theoretically, the higher the sunlight intensity, the more algal
activity and, hence, the greater the DO production during daylight hours.
Therefore, if algae is present in large numbers, a diurnal DO variation
should occur.
RESULTS
Table 4 lists all abbreviations and/or symbols used in the results tables.
The results of the AWWTF, polishing pond, and impoundment samplings are
given in Tables 6 — 8. The results of the recording dissolved oxygen and
pyrheilometer measurements are shown in Figures 3 — 6.
DISCUSSION OF RESULTS
Bryant College AWWTF
As previously mentioned, the AWWTF appeared to be having operational
problems during the study. Nevertheless, the results of the effluent samples
analyses showed a discharge with an average BOD 5 of less that 5 mg/i and total
suspended solids (nonfilterable residue) of 18 mg/i. These values are well
within the maximum day permit limitations of 25 mg/i. The BOD 5 and total
suspended solids removal efficiency through the AWWTF during the survey
averaged better than 97 percent and 98 percent, respectively. The influent
total suspended solids concentrations varied greatly during the survey:
1800 mg/i, 270 mg/i, and 2300 mg/i. There are several possible explanations
for this:
1. Collection of a homogeneous sample for analysis. This was
compounded by the fact that the influent samples had a great deal
of floating solids.

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2. The sampling station was immediately down line from the comminuter.
3. Backwash from the phosphorus removal unit processes was returned
into the waste stream just prior to the comminuter.
The effluent pH was within the permit limitations.
Chlorine residual, using the amperometric titration technique, varied
from a high of 3.1 mg/l to a low of 1 54 mg/i. The large variance in
residual concentrations is the result of decreasing the chlorine dosage
after EPA field personnel recorded a high of 3.1 ing/l on the first day.
The high average effluent chlorine residual of 2.0 mg/i was reflected by
the low coliform counts found. The coliform counts were well below the
permitted values of 400 fecal coliform per 100 ml.
TKN decreased as it passed through the AWWTF. Nitrite — nitrate
nitrogen increased while ammonia nitrogen remained fairly constant.
A portion of the AWWTF was designed specifically to remove phosphorus
by the use of chemical coagulation, settling, and filtration. The
phosphorus removal efficiency averaged 47 percent throughout the duration
of the study. Also, the concentrations of phosphorus discharged are all
in violation of the permit limitation of 1.0 mg/i.
Part of the phosphorus problem could be attributable to the operation
of the phosphorus removal unit operation. The operation, as related to
S & A personnel, is described below:
1. A five percent alum solution is dosed into the secondary clarifier
effluent to coagulate and settle out phosphorus. The usual dosage
is about ten pounds of alum into an average flow of 0.18 cubic
feet per second, cfs, 0.125 mgd. The phosphorus removal efficiency
to meet the 1.0 mg/i permit limitation should be around 85 to 90

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10
percent. EPA’s process design manual for phosphorus (P) removal
suggests an alum to phosphorus weight ratio of 16:1 and 19:1,
respectively. Thus, to achieve 85 percent P removal from a
wastewater containing 7.5 mg/i P, the alum dosage needed would
be (16) (7.5) 120 mg/i or 1718 kilograms per million liters
(1000 pounds per million gallons). With an average flow of 0.18
cfs (0.12 mgd), the Total P quantity should be 54.4 kilograms
(120 pounds) per day. At a 90 percent removal rate, the total
daily amount of alum added should be 64.4 kilograms (142 pounds).
Those are theoretical dosages, but they seem to indicate the
actual dosage at the AWWTF might be inadequate for the required
removal efficiencies. There is presently no pH control for
optimum alum removal.
2. The operation described for backwashing the multi—media filters
and settling tanks used for phosphorus removal consists of sending
the backwashings to a chamber from where it is pumped back to the
head of the plant. This, combined with no regular sludge wasting,
could be a major reason for poor phosphorus removal efficiencies;
i.e. the phosphorus is settled out and then put back into the
system. This could lead to a phosphorus build up in the system.
“ Polishing Pond ”
The “polishing pond” is not a designed part of the AWWTF.
During the survey period, this pond was green in color, indicating
excessive algal growth due to high nutrient concentrations (Total P and N)

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11
being discharged into it via the AWWTF effluent. The pond effluent
analyses (WQTEO1) reflect this highly eutrophic state with a plankton
algal count of 313,600 per milliliter of sample and chlorophyll a
concentration of 48.9...qg/l. This condition easily fits Shindler’s
description of an eutrophic lake of “algal blooms with more than 30 mg
of chlorophyll a per liter”) In addition to the high plankton count and
chlorophyll a concentration, the average total phosphorus and various
forms of nitrogen concentrations were very high. All the above, plankton,
chlorophyll a, total phosphorus, and nitrogen concentrations show that
the “polishing pond” is in a highly eutrophic state, with the AWWTF
being responsible.
The BOD 5 at this station was low as is the BOD 5 in the AWWTF effluent
(less than 5 mg/i). The dissolved oxygen concentrations were extremely
high (12.1 — 14.4 mg/i) indicating supersaturated conditions due to
massive DO production.
The coliform counts were also very low and pose no health problems.
It should be noted that a chlorine residual was present in all the grab
samples from this station and varied from 2.0 to 2.8 mg/i. This is high
for a WWTF effluent let alone a “polishing pond” discharge. This high
chlorine residual did not appear to adversely affect the phytoplankton in
the pond as evidenced by the very high plankton count. There were no
traces of chlorine in the Woonasquatucket River (Station WQTEO3) immediately
below its confluence with the polishing pond effluent.
1 D. V. Shindler, “Eutrophication and Recovery in Experiment Lakes
Implications for Lake Management”, Science , Volume 184, May 24, 1974,
Pages 897 — 899.

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Impoundments
Water Quality Stations
The water quality of the downstream water quality stations
(WQTEO3 — WQTEO7) does not measurably vary from the upstream or control
station (WQTEO2). The terms downstream and upstream refer to the station
positions relative to the confluence of the tributary carrying the AWWTF
effluent with the Woonasquatucket River in Stillwater Pond.
The BOD 5 , DO, and pH data from all impoundment stations present a
picture of good water quality, easily within the State Class “B” water
quality limitations. See Appendix II.
The total coliform counts at all stations below the waste confluence
are higher than the 1000 per 100 milliliters the Class “B” criteria call
for. This limitation was also exceeded at the upstream station (WQTEO2).
The “polishing pond” discharge (WQTEO1) did not violate this colifonn
standard, and due to the high chlorine residual in the “polishing pond”
effluent “after growth” of coliforms does not seem feasible. Thus, it
seems unlikely the high coliform counts can be attributed to the college
AWWTF.
The continuous dissolved oxygen (DO) meters showed a small diurnal
variation at Station CRDOO1 and a larger one at Station CRDOO2. See
Figures 3 — 6. These diurnal variations indicate algae are present in
significant numbers at both stations. This is borne Out by noting the
plankton algal count at the stations nearest the DO monitors. Station
WQTEO3, nearest CRDOO1, showed a count of 2500 per milliliter, and
Station WQTEO6, nearest CRDOO2, had a count of 2090 per milliliter.
The high concentrations of total phosphorus and various nitrogen
forms, NH 3 , NO 2 + NO 3 , TKN (hereafter referred to as N) in the “polishing

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pond” effluent have no measurable effect on the concentration of these
nutrients in the downstream impoundment stations when compared to the
upstream concentrations. The total phosphorus concentration of the
upstream station (WQTEO2) and two downstream stations (WQTEO4 and WQTEO7)
does exceed 0.05 mg/i in one of the three samples collected at each
station. A total phosphorus concentration above 0.05 mg/i is generally
considered an amount having the potential to accelerate the natural life
cycle of a body of water or eutrophication. Some states, such as Massachusetts,
limits total phosphate to 0.05 rng/l as P in Class “B” waters. Rhode Island,
however, has no limitation on total phosphorus.
The plankton algal count and the chlorophyll a concentration do not
show any marked difference between the control and downstream stations.
The algal counts, with the exception of these at Station WQTEO7, were
all above 2,000 per milleliter. The chlorophyll a concentrations in
the impoundments, ranging from 3.64 to 6.08 micrograms per liter (‘-4g11),
rose steadily as you preceeded downstream with the exception of a decrease
at Station WQTEO6 which is in a dead—ended portion of Ceorgiaville Pond.
Sediment Stations
Chemical Analyses
The downstream impoundment sediment stations show no significant
difference in the chemical constituents from the upstream sediment station.
The first station below the discharge (WSOO2) shows a marked decrease from
the upstream control station (WSOO1). After this initial decrease, the
sediment total phosphorus concentrations increase by approximately 100
percent over the upstream control station. The literature is divided as

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14
to the effect, if any, of sediment phosphorus on the quality of the overlying
water. Thus, no conclusions regarding the problem can be made at this time.
Sediment Oxygen Demand (SOD )
EPA’s Region I biology personnel collected three sediment samples
from the study area for determining the SOD. These stations are shown and
described in Figure 1 and Table 5, respectively. The apparatus used was a
bench model benthic respirometer. The following equation was used to
determine the SOD measured in grams oxygen per square meter per day
(gmO2/m 2 /day):
SOD (gins O 2 /m 2 /day) = ( Oi—0 7
Where: Oi Initial DO (mg/i)
Of = Final DO (mg/i)
V Volume of confined water (in 3 )
Sa Surface area of the sediment (m 2 )
t = Time in days
The data listed in Table 8 show that the sediments had low SOD values
representative of sediments not subjected to any demonstrable untreated
domestic of industrial waste accumulations. No attempt was made to determine
the areal extent of these sediments.
Biology Stations
Table 9 lists the organisms found in the sediments at four locations.
These locations are shown in Figure 1 and described it Table 5.

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Shallow fast flowing water over rubble (2 1/2 — 10” in diameter)
downstream of Stiliwater Pond Dam (Station WSOO2) and Capron Pond Dam
(Station WSOO3) supported several major taxonomic groups including insects,
planarians, molluscs, crustaceans, coelenterates, porif era, and bryozoans.
The dominant specie at these two stations was the caddisfly larvae,
Hydropsyche simulans , an insect that is sensitive to pollution.
Ten of the twelve animals collected at Station WS002 are classified
as inhabitants of environments of intermediate water quality. Only one
pollution tolerant snail, Physa integra , was collected compared to hundreds
of dominant clean water caddisfly larvae indicating water of good quality
at this station.
Eight of the nine bottom—dwellers comprising the benthic community
of Station WSO3B are indicators of intermediate water quality. The
dominant pollution sensitive caddisfly larvae, Hydropsyche simulans ,
however, indicates water of good biological quality at this station.
Station WSOO4 located at the inlet to Georgiaville Pond was shallow
with slow water velocity, and the rubble was overlaid with an accumulation
of wood, sticks, and other undecayed coarse plant material. Nine of ten
benthos living on this substrate (Station WS004) are classified as inter-
mediate water quality inhabitants and the dominant form was a crustacean,
the sowbug, Asellus militaris . A single specimen of the sensitive water
mite was collected at this station of fair water quality.
A Peterson—dredge grab sample of the bottom sediment of Georgiaville
Pond (Station WSO4B) consisted of black muck with no detectable odor of
decomposition and a low sediment oxygen demand rate of 0.61 grams 0 2 /square
meter/day. This finely divided organic matter, completely decomposed and

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16
nutrient deficient, supported a few aquatic earthworms, Lumbricus variegatus ,
and midgefly larvae, Chironomous sp . The low SOD rate and low diversity
and paucity of numbers of invertebrates indicate nutrient deficient sediments
and little fertilization from overlying waters. One might question the
conclusion concerning nutrient deficient sediments when the Ceorgiaville
sediments had the highest average total phosphorus concentrations of the
sediments sampled. The limiting nutrient in these sediments appears to be
other than phosphorus or nitrogen. This could explain the lack of organisms
with relatively high total P values. The overlying waters had low ammonia
nitrogen concentrations and, with the exception of one value, had phosphorus
concentrations below 0.05 mg/i. This is the “rule of thumb” concentration
which, if in excess of, could contribute to eutrophication. Chlorophyll a
values were also low (4.86 mg/l average).

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-p
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JIGURE 1 -
STUDY AREA SHOWING SAMPLING STATIONS
WQTE Water Quality Stations
WO TT — Wastewater Stations
WSOO — Sediment Stations
CRDO — Continuous Recording D.O. Stations
L i ,
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Bryant College Advanced Wastewater
Treatment Facility, Smithville, Rhode Island
and ”Polishing Pond”
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irs.’) j . ‘ 1 __________

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FIG4 5
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:1100 1400 1700 2000 2300 0200 0500 0800 1100 1400 1700 2000 2300 0200 0500 0800
• 10/02/74 . . . 10/03/74 . - - - 10/04/74 . ii
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- .- S-,. / -

-------
-—
-
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Stin1ighi
TIG1J RE T
Intensity ’ nd Oxygen
— t ti n —CR OO2
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I ‘I’’ 1*Q3114 ’ I - ‘--‘ ‘ - - . . -i - - . 1 /04/7 -
TIME (hrs.’)

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TABLE 1
AWWTF AND CONTINUOUS RECORDING DO
STATIONS, DATES SAMPLED, NUMBERS AND TYPES OF SAMPLES COLLECTED AND ANALYZING LABORATORY
Number of Samples Collected — Grab/Composite — Analyzing Facility
Field NERL NFIC
Station Total
Number Date Temp pH DO Cl BOD Residue P Bacti NH —N NO2—NO 3 TKN
WQTTO1 10/01/74 0 0 0 0 0 0 2/0 0 0 0
10/02/74 0 0 0 0/1 0/1 0/1 2/0 0/1 O/l 0/1
10/03/74 1/0 0 0 0/1 0/1 0/1 2/0 0/1 0/1 0/1
10/04/74 1/0 0 0 0/1 0/1 0/1 0 0 0 0
WQTTO2 10/01/74 0 0 0 0 0 0 2/0 0 0 0
10/02/74 0 0 0/1 0/1 0/1 0/1 2/0 0/1 0/1 0/1
10/03/74 1/0 0 0/1 0/1 0/1 0/1 2/0 0/1 0/1 0/1
10/04/74 1/0 0 0/1 0/1 0/1 0/1 0 0 0 0/1
CRDOO1 10/02/74 continuous —— continuous
10/03/74 continuous —— continuous
10/04/74 continuous —— continuous
CRDOO2 10/02/74 continuous —— continuous
10/03/74 continuous —— continuous
10/04/74 continuous —— continuous

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TABLE 2
WATER QUALITY AND “POLISHING POND”
STATIONS, DATES SAMPLED, NUMBERS AND TYPES OF SAMPLES COLLECTED AND ANALYZING LABORATORY
Number of Samples Collected — Grab/Composite — Analyzing Facility
Field NERL NFIC
Station Chlor Total
Number Date Temp pH DO Cl BOD Residue Plankton a P Bacti N}1 3 —N NO 2 —NO3
WQTEO1 10/01/74 2/0 1/0 2/0 2/0 0/1 0 1/0 1/0 0/1 2/0 0/1 0/1 0/1
10/02/74 2/0 0/0 2/0 2/0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
10/03/74 2/0 1/0 2/0 2/0 0/1 0 0 0 O/l 2/0 0/1 O/l 0/1
WQTEO2 10/01/74 2/0 2/0 2/0 0 0/1 0 1/0 1/0 0/1 2/0 0/1 0/1 0/1
10/02/74 2/0 2/0 2/0 0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
10/03/74 2/0 2/0 2/0 0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
WQTEO3 10/01/74 1/0 1/0 2/0 0 0/1 0 1/0 1/0 0/1 2/0 0/1 0/1 0/1
10/02174 2/0 2/0 2/0 1/0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
10/03/74 2/0 2/0 2/0 i/O O/l 0 0 0 0/1 2/0 0/1 0/1 0/1
WQTEO4 10/01/74 2/0 2/0 2/0 0 0/1 0 1/0 1/0 0/1 2/0 0/1 0/1 0/1
10/02/74 2/0 2/0 2/0 0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
10/03/74 2/0 2/0 2/0 0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
WQTEO5 10/01/74 2/0 2/0 2/0 0 0/1 0 1/0 i/O 0/1 2/0 0/1 0/1 0/1
10/02/74 2/0 2/0 2/0 0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
10/03/74 2/0 2/0 2/0 0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
WQTEO6 10/01/74 2/0 2/0 2/0 0 0/1 0 1/0 1/0 0/1 2/0 0/1 0/1 0/1
10/02/74 2/0 2/0 2/0 0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
10/03/74 2/0 2/0 2/0 0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
WQTEO7 10/01/74 2/0 2/0 2/0 0 0/1 0 1/0 1/0 0/1 2/0 0/1 0/1 0/1
10/02/74 2/0 2/0 2/0 0 0/1 0 0 0 0/1 2/0 0/1 0/1 0/1
10/03/74 2/0 2/0 2/0 0 0/1 0 0 0 0/1 2/0 0/1 0/1

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TABLE 3
SEDIMENT STATIONS, DATES SAMPLED, NUMBERS AND TYPES OF SAMPLES COLLECTED AND ANALYZING LABORATORY
Number of Grab Samples Analyzed at NERL
Percent Total
Station Date Moisture P TKN SOD Metals Biology
WSOO1 10/23/74 1 1 1 0 1 0
WSOO2 10/23/74 1 1 1 1 1
WSOO3 10/23/74 1 1 1 1 1 1
WSOO4 10/24/74 1 1 1 1 1 1
WSOO4B 10/24/74 0 0 0 0 0 1
W 5005 10/24/74 1 1 1 0 1 0

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TABLE 4
ABBREVIATIONS USED IN THE REPORT
Abbreviation
Temp
pH
DO
Couip
Grab
MGD
CHS
CMD
BOD
BOD 5
Total P
NH 3
N0 2 -N0 3
TKN
TKN (dry weight)
Residue
Nonfilterable
Filterable
Description
temperature of sample
field pH
dissolved oxygen
composite sample
grab sample
million gallons per day
cubic meters per second
cubic meters per day
biochemical oxygen demand
incubated at 20°C
five—day. BOD
total phosphorus in water
total phosphorus in sediments
on a wet weight basis
ammonia nitrogen
combined nitrite—nitrate
nitrogen
total Kjeldahl nitrogen
amount of TKN present in
the sediment on dry weight
basis
solids
suspended solids
dissolved solids
Units of Measure
degrees centigrade (°C)
stand.ard units (SU)
milligrams per liter (mg/i)
million gallons per day
cubic meters per second
cubic meters per day
mg/i
mg/i
mg/i as phosphorus
microgram per gram (mg/gm)
mg/i as nitrogen (N)
mg/i as N
mg/i as N
milligram per kilogram
mg/i
mg/i
mg/i
(mgd)
(cms)
(cmd)

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TABLE 4 (CONT.)
ABBREVIATIONS USED IN THE REPORT
Abbreviation Description Units of Measure
Total total solids mg/i
Volatile organic solids (loss on
ignition at 6000C) mg/i
Fixed inorganic solids (remaining mg/i
after ignition at 600°C)
Metals total amount of a particular parts per million (ppm)
metal present by weight
Cr chromium ppm
Ni nickle ppm
Fe iron ppm
Cu copper ppm
Pb lead ppm
Zn zinc ppm
Sn tin ppm
Coliform Bacteria coliform bacteria number per one hundred
milliliters of sample
Total total coliform bacteria number per one hundred
milliliters of sample
Fecal fecai coliform bacteria number per one hundred
milliliters of sample
Sunlight intensity sunlight intensity gram calories per square
centimeter per minute
(gm—cal/cm 2 /min)
Cl total chlorine residual mg/i
Plankton total number of Plankton number per ml
algal present
Chior a chlorophyll a micrograms per liter (4lg/l)

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TABLE 4 (CONT.)
ABBREVIATIONS USED IN THE REPORT
Abbreviation Description Units of Measure
Percent moisture percent by weight of percent (%)
moisture present In tne
sedIment sample
SOD sediment oxygen demand grams of oxygen utilized per
square meter of sediment
surface per day
(grams 02/m 2 /day)
9999 composite sample
Symbols preceding a report value demote the following:
3 = estimated, value not accurate
K = less than
L = greater thani
R = results not reported
= no sample collected
S not present in measureable amounts
NERL — EPA’s Region I Laboratory at Needham, Massachusetts
NFIC — EPA’s National Field Investigations Center, Cincinnati, Ohio

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River
Kilometer
(mile)
18.66—0.92+
(11.59—0.57+)
18.66—0.92+
(11.59—0.57+)
18.28
(11.4)
15.09
(9.38)
18.80
(11.65)
17.47
(10.86)
16.83
(10.46)
16.44
(10.22)
15.96
(9.92)
15.06
(9.36)
TABLE 5
STATION LOCATION AND DESCRIPTION
Station
WQTTO1
WQTTO2
CRDOO1
CRDOO2
wS001
WSOO2
WSOO3
WSOO4
WSOO4B
WSOO5
Location
Latitude Longitude
o ‘ “ o ‘ ‘ - Description
41 55 04 71 32 30 Influent to the Bryant College Advanced Wastewater .Treatment
Facility (AWWTF), Smithfield, Rhode Island.
41 55 04 71 32 26 Effluent, after chlorination, from the Bryant College AWWTF,
Smithfield, Rhode Island.
41 54 30 71 32 05 Continuous recording dissolved oxygen station at the Route 116
Bridge over Stiliwater Pond, Smithfield, Rhode Island. Same
location as WQTEO3.
41 53 38 71 30 28 Continuous recording dissolved oxygen station just above the
Georgiaville Pond outlet (WQTEO6), Smithfield, Rhode Island.
41 54 31 71 32 30 Sediment station in Stiliwater Pond upstream of the unnamed
tributary carrying the AWWTF effluent and downstream of the
Stillwater Reservoir outlet, Smithfield, Rhode Island.
41 54 26 71 30 30 Sediment station immediately below the outlet from Stiliwater
Pond, Smithfield, Rhode Island.
41 54 10 71 31 19 Sediment station immediately below the outlet from Capron Pond,
Smithfield, Rhode Island.
41 54 05 71 31 05 Sediment station in Georgiaville Pond, Smithfield, Rhode Island,
approximately 1.43 kilometers north—northwest of the outlet.
41 53 50 71 30 57 Sediment station in Georgiaville Pond, Smithfield, Rhode Island,
approximately 0.95 kilometers north—northwest of the outlet.
41. 53 35 71 30 29 Sediment station in Gιorgiaville Pond, Smithfield, Rhode Island.
approximately 0.05 kilometers south’.southwest of the outlet

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TABLE 5 (CONT.)
STATION LOCATION AND DESCRIPTION
River Location
Kilometer Latitude Longitude
Station ( mile ) O ‘ “ 0 “ Description
WQTEO1 18.66—0.92 41 55 01 71 32 36 Outlet from the “polishing pond”, Bryant College, S iithfield,
(11.59—0.57) Rhode Island.
UQTEO2 • 18.66 41 54 32 71 32 27 Upstream side of Route 104 Bridge, Smithfield, Rhode Island.
(11.60) Station is upstream of the tributary carrying the Bryant College
AWWTF discharge.
WQTEO3 18.28 41 54 30 71 32 05 Upstream side of the Route 116 Bridge, Smithfield, Rhode Island.
(11.36) This is the same location as Station CRDOO1,.
WQTEO4 17.38 41 54 27 71 31 35 Immediately behind the dam at the outlet from Stiliwater Pond,
(10.80) Smithfield, Rhode Island.
WQTEO5 16.73 41 54 10 71 31 21 Immediately behind the dam at the outlet from Capron Pond,
(10.40) Smithfield, Rhode Island.
WQTEO6 15.01—0.35 41 53 26 71 30 33 The southeast end of Georgiaville Pond, approximately 0.25
(9.30—0.25) kilometers south—southeast of the Georgiaville Pond outlet,
Smithfield, Rhode Island.
WQTEO7 15.01 41 53 35 71 30 26 Immediately behind the dam at the outlet from Georgiaville Pond,
(9.33) Smithfield, Rhode Island.

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TABLE 6
BRYANT COLLEGE WWTF INFLUENT AND EFFLUENT ANALYSES, SMITHVILLE, RHODE ISLAND
Flow
During
Sample Composite Field Chlorine Residue (mg/i)
Collection cmd pH Residual Nonfilterabie Filterable
Station Date Time ( nzgd) ( SU) ( mg/i) Total Volatile Fixed Total Volatile Fixed
WQTTO1 10/01/74 0945
1145
10/02/74 0945 —— —— —— ——
1145 — — —— —— ——
9999 502 1800 — — 216
(0.1325)
10/03/74 0945 —— —— —— —— ——
1145 —— 6.9 270 —— 240
9999 453 —— —— —
(0.1197)
lq/04/74 9999 408 8.4 2300 2200 71 260 90 170
(0. 1077)
WQTTO2 10/01/74 0945
1145
10/02/74 0945
1145 —— —— —— —— ——
9999 502 3.1 14 —— —— 194
(0. 1325)
10/03/74 0945
1145 —— 6.7 —— —— ——
9999 453 —— 1,6 22 —— 197
(0.1197)
10/04/74 9999 408 6.9 1.4 17 14 3 210 47 170
(0.1077)

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TABLE 6 (CONT.)
BRYANT COLLEGE WWTF INFLUENT AND EFFLUENT ANAL, SMITHVILLE, R}IODE ISLAND
BOD
(mg/i)
NH3—N
( mg / 1 )
Station
WQTTO1
WQTTO2
N02+N0 3 -N
(mg / 1)
TKN
( mg/i )
130
15
0.27
280
45
28
lO/04/74
10/01/74
0.40
300
51
Sample
Collection
Date
Time
Total
Phosphorus
(mg/i)
Coiiforu
- Counts
Total
Bacteria
Per 100 ml
Fecal_
10/01/74
0945
1145
——
——
49,000,000
41,000,000
2;100,000
2,300,000
10/02/74
0945
1145
9999
——
—
5.07
32,000,000
63,000,000
——
4,200,000
3,800,000
——
10/03/74
0945
1145
9999
——
——
7.79
28,000,000
18,000,000
——
•500,000
650,000
——
9999
7.93
0945
1145
1,900
1Q00
1Q00
1Q00
10/02/74
0945
1145
9999
•——
•——
4.8
——
——
4.00
300
1 (100
—
1(10
1(10
10/03/74
10/04/74
0945
1145
9999
9999
——
——.
R
KS
——
——
- 5.1
——
——
4.21
275
200
1(100
—
1(10
1(10
1 (5
20
18
16
20

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TABLE 7
“POT.TS)I1N(’ POND” ANI) LHPOUNDMF.NT IATER QUALITY ANA1.YSE — UOONASOUATUCKET R1vI:R S l tIDY, RHODE ISI.AND
Col [ form
Total Nitrogen Bacteria Plankton
Sample Field Field DOD P TKN Nil 3 N0 2 —N0 3 Count Per Chlorine Algal Chlorophyll
Collection Temp p 11 flO 5—Day (mg/i (mg/i (mg/i (mg/i 100 ml Residual Count a
Station Date Tine ( SU) ( mg/i) ( mg/i) as P) as N) as N) as N) Total Fecal ( mg/i) per ml ( .i 7i )
WQTEO1 10/01/74 1015 16 6.8 12.3 —— —— —— —— —— 1(100 Fl00 2.1 313,600 48.90
1205 17 —— 12.6 —— —— — — —— —— 1(100 1(100 2.0 —— —
9999 —— —— — — 2 2.57 14 10 4.0 —— ——
10/02/74 1000 17 —— 14.4 — — —— —— —— —— 100 1(10 2.8
1200 17 —— 14.3 —— —— — — —— —— 100 1(10 2.8
9999 —— —— 3 2.28 15 10 3.8 —— —— ——
10/03/74 1000 14 12.1 —— —— —— —— —— 1(100 1(10 2.2
1200 16 6.9 13.2 —— —— —— —— —— 1(100 1(10 2.1
9999 —— — —— 3 4.03 15 14 4.5 —— —— ——
WQTEO2 10/01/74 0820 17 7.5 8.8 —— — — — —— —— 6600 1(100 4,250 4.66
1125 18 7.7 9.0 — — —— —— —— —— 4900 1(1.00 ——
9999 —— —— —— 3 1(0.01 0.8 0.02 0.05 —— -- ——
10/02/74 0825 17 7.0 8.7 — — — — — —— —— 5800 1(10 —— ——
1010 17 7.2 9.0 —— —— —— —— 2700 1(10 —— ——
9999 —— — — — — 3 0.17 0.7 0.06 0.07 — — -— —— —
10/03/74 0810 16 7.5 9.0 —— — — —— —— —— 3600 30 —— ——
0935 15 7.6 9.7 —— — — —— — — — — 3300 10 —— ——
9999 —— — — —— 2 0.02 0.6 0.04 0.05 —— —- — ——
WQTEO3 10/01/74 0900 17 7.2 8.2 — — — — — — —— 5000 1 (100 —— 2,500 5.63.
1145 ft ft 8.9 —— —— —— —— —— 5400 1(100 — — ——
9999 —— —— -— 3 0.02 0.6 0.06 0.10 — — — —
10/02/74 0840 16 7.6 8.9 —— —— —— —— — — 6100 1 .0 —
1020 17 7.1 8.6 —— —— —— —— —— 3203 10
9999 —— —— —— 2 0.04 0.6 0.04 0.07 0.0
10/03/74 0820 15 7.6 8.7 — — — — —— 5100 10 —
0945 14 8.1 9.0 — — — — 4800 30 ——
9999 — — — 2 0.03 0.6 0.06 0.06 —

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TABLE 7 (C0NT.
WATER OUALITY ANALYSES — WOONASQLJATUCKET RIVER STUDY, RHODE ISLAND
Coliform
Bacteria Plankton
Sample Field Field DOD Total Count Per Algal Chlorophyll
Collection Temp pH DO 5—Day P Nitrogen 1OC ml Count a
Station Date Time ( °C) ( SU) ( mg/l) ( mg/i) ( mg/i as P) TKN NH NO 2 —N Total Fecal Per ml ( . ij7i )
WQTEO4 10/01/74 0935 17 6.8 8.1 —— —— —— —— -— 5200 300 2260 5.98
1315 19 7.4 8.6 —— — — —— —— 5300 200 ——
9999 —- —— —— 2 1 (0.01 0.7 0.70 0.03 -- —— —— ——
10/02/74 0900 16 6.9 8.0 —— —— —— — — —— 5400 60 ——
1035 17 6.4 8.2 —— —— — —— —— 3400 40 ——
9999 —— —— —— 2 0.01 0.5 0.02 0.04 —— —— ——
10/03/74 0840 15 7.7 8.5 —— —— —— 2900 40
1000 15 7.8 8.8 —— —— —— —— —— 4100 Kl0
9999 —— —— —— 2 0.21 0.6 0.02 0.05 —- ——
WQTEO5 10/01/74 1005 16 6.8 8.7 —— —— — —— —— 8100 1(100 3060 5.98
1330 17 7.5 8.7 — —— —— —— —— 7300 200 —— ——
9999 —— —— —— 2 0.01 0.5 0.03 0.06 -- —— —— ——
10/02/74 0920 16 7.1 8.4 —— —— —— —— —— 8400 40
1100 17 6.2 8.7 — —— —— —— —— 5800 30
9999 —— —— —— 2 1(0.01 0.5 0.04 0.05 -- ——
10/03/74 0850 15 7.8 8.5 —— —— — — — —— 1100 10
1025 15 7.5 8.4 —— —— —— —— —— 1800 1(10
9999 —— —— —— 2 0.01 0.8 0.03 0.04 —— ——
WQTEO6 10101/74 1100 18 7.3 8.3 —— —— — — — —— 1800 300 2090
1410 19 7.5 8.5 —— — —— —— —— 1300 400 — — — —
9999 —— —— —— 1 0.02 0.7 0.08 0.07 —— —— ——
10/02/74 0950 17 7.4 8.2 — — — — —— —— 1300 100
1135 18 7.4 8.6 — —— —— —— — 800 70
9999 —— — —— 2 1(0.01 0.6 0.06 0.08 —— ——

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TABLE 7 (CONT.
WATER OUALITY ANALYSES — WOONASQUATUCKET RIVER STUDY, RHODE ISLANI1
Coliform
Bacteria Plnnkton
Sample Field Field BOD Total Count Per Algal Chlorophyll
Collection Temp pH DO 5—Day P Nitrogen 100 ml Count a
Station Date Time ( °C) ( SU) ( mg/i) ( mg/i) ( mg/i as P) N11 N0 2 —NO Total Fecal Per ml ( .ugT l )
UQTEO6 10/03/74 0920 16 7.8 8.8 —— —— —— — — — — 500 40 ——
(cont.) 1100 16 7.8 9.2 —— — — —— —— — — 2500 40 ——
—— —— 0.01 0.7 0.06 0.07 —— —— ——
WQTEO7 10/01/74 1030 18 7.5 8.6 —_ —— —— —— — — 2100 100 1360 6.08
1345 19 7.5 8.5 —— —— —— — —— 700 200 —— —
9999 —— —— —— 2 0.04 0.8 0.08 0.07 — - —— —— ——
10/02/76 0935 17 7.2 8.2 —— —— — — — — 1200 70 ——
1120 18 7.3 8.6 — —— —— — — — — 1000 80 —
9999 — —— —— 2 0.16 0.6 0.06 0.07 —— —— —
10/03/74 0900 16 8.1 8.3 —— —— — — — — 600 40
1035 16 7.3 8.9 —— —— —— —— —— 400 10
9999 —— — — —— 1 0.01 0.7 0.10 0.08 — —

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TABLE 8
CHEMIcAL SEDIMENT ANALYSES - WOONASQUATUCKET RIVER STUDY, RHODE ISLAND
Total
P TKN
Sample (wet (dry SOD
Collection Percent weight) weight) Crams Metals (ppm)
Station Date Time Moisture mg/gm mg/gm O m 2 /day Chromium Iron Nickle Copper Zinc .Tirr Lead
WSOO1 10/23/74 1045 75.4 787 820 •—— 0.45 14,500 71 38 98 1300 33
WSOO2 10/23/74 1230 69.1 163 1100 0.62 0.26 20,000 9 22 235 114 77
WSOO3 10/23/74 1400 86.0 1450 1900 0 7O 0.32 22,000 19 57 299 523 77
WSOO4 10/24/74 1030 72.1 1300 940 0.61 0.27 21,000 11 25 209 23 62
WSOO5 10/24/74 1315 85.6 1810 530 —— 0.52 22,500 11 57 260 S 106

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TABLE Q
Woonasquatucket River, R.I.
Qualitative Benthic Survey
Oct. 1974
Organisms S tatioris
Sensitive WSO2B WSO3B WSO4A WSO4B
Caddisfly - Hydropsyche simulans x x c
Water mite - Hydracarina x
Intermediate
Moss animalcules - Cristatella mucedo x
Hydra - Hydra sp. x x
P1.anarian - Planaria sp. x
Clam - Sphaeriuxn sp. x x
Sponge — Spongi].la fragilis x
Scud — Hyallela azeteca x
Sowbug - Asellus militaris x *
Dragonfly - Leucorrhiriia sp. x
Damselflies - Agrion sp. x
- Chromagrion conditum x x
Snails - Helisoma sp. x x
Lymnaea sp. x x
Ferrissia sp. x
Midgefly (without gills) x x
Fishfly - chauliodes sp. x
Blackfly - Simulium uittatum x x
Horsefly - Tabanus atratus x
Beetles - Curculionidae x
Dytiscidae x
Haliplidae x
Tolerant
Aquatic earthworm - Lumbricus variegatus x
Midgefly (with gills) - Chironomous sp. x
Snail - Physa integra x
Total Kinds 12 9 10 2
* Dominant Kind

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APPENDIX I
NPDES PERNIT. NO. R10100285
BRYANT COLLEGE
U. S. ENVIRONMENThL PROTECTION AGENCY
REGION I
JOHN F. KENNEDY FEDERJ L BUILDING
BOSTON, MASSACHUSETTS 02203
Application Number: R10100285
Name of Applicant: Bryant Co1le, e
Expiration Date: January 1. 1979
AUTHORIZATION TO DI CHARCE TT 1DER THE
NATIONAL POLLUTA;:T DISC !AR;E TLflIPATION SYSTEM
In reference to the above application for a permit to discharge in compli-
ance with the provisions of the Federal Water Pollution Control Act, as
amended (hereinafter referred to as the “Act”), ____________________________
Bryant College
(hereinafter referred to as the “permittee”) is authorized by the Regional
Mministrator Region I, U. S. Environmental ProtectIon Agency, Boston,
Massachusetts, to discharge from the B 7ant Co11 e t a. tewatpr T aa .tm rij
Facility {Disch.ar e 002. )
to on un—named tributary of t e oonascn: tucket River
in accordance with the following general and special conditions:

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APPENDIX I (CONT.)
I. SPECIAL CONDITIONS
Page SC 1 of
A. Effluent Linits
1. Until January 1,1 9 , the permittee is authorized to discharge
from discharge 001 the Br ant College Wastewater Treatment Facility
to t4ie an un—named tributary to the 1oonascuatucket River
an effluent whose characteristics shall not exceed the values
listed below.
Discharg
kg/day (lbs/day)
Monthly Weekly Maximum
Average Average Day
** **
Limitations
(specify units)
Monthly Weekly Maximum
Average Average Day
Biochemical Oxygen Demand,
5—day, 20°C
9.7(21.2)
]2.9(2 .4)
15MG/L 2OMG/L
25MG/L
Total Suspended Solids
Settleable Solids
a1 Coliform Bacteria
Total Phosphorus
9 .. 7 j 21 .2) 129 (2 .4) 15MG,/L
20!IG/L
25MG/L
—
0. ]1.IL/L
0 .3ML/L
200/100?i
40O/l0O L
4OO/l0C IL
—
—
1 .0 IG/L
Effluent Characteristic
Flow, cu. !1/day (MCD)
Biochemical Oxygen Demand,
5—day, 20°C
Total Suspended Solids
tleable Solids
Feca]. Coliform Bacteria
Limitations
(specify units)
Nonthly Weekly Maximum
Average Average Day
Effluent Characteristic
Flow, cu. H/day (MCD)
* * 644.0(0.17) * * * *
—- —-I
-i
authorized to discharge from
t he
an e f ucnt whose characteristics
listed b .lo w.
Discharc e
kg/day (lbs/day)
Monthl 1 y Wc ekly Maximum
_______________ Average 4 jtverar. Day
*‘ &
shall not exceed the values
**
** ** **
••• \•_
:.
.
I

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APPENDIX I (CONT.)
Page C of
a. The p11 f the cffl ent shall not be lc s than 6.0 nor
greater than 9.0 at any time.
b • h t th ’ . e&
- C eco
urv1a trs.an t i1 tev The total ch lo rifle
residual of the effluent shall not result in any
demonstrable harm to aquatic life or violate any water
quality standard which has been or may be promulgated.
Upon promulgation of any such standard, this pcrr it
shall be revised or amended in acco’dance with such
standard, and the permittee shall be so notified.
c. :The effluent shall contain neither a visible oil sheen,
foam, nor floating solids at any time.
d. The discharge shall not cause visible discoloration of
the receiving waters.
e. The discharge shall not cause a violation of the water
quality standards of the receiving waters.
f. The monthly average concentrations of BOD and total
suspended solids in the discharge shall not exceed
15 percent of the monthly avcrage concentrations of
BOD and total suspended solids in he influent inco
the permittcc’s wastcwater trcatm nt facilities.
For the purposes of determining whether the permittee
is in compliance with this condition, samples from the
discharge and thc. influent shall be taken with appro-
priate allowance for detentcon times.
g. when the daily average flou for a period of l 0 days
exceeds 0 percent of the per aitted flow limitation,
the permittee shall sutmit to the Regional Administra-
tor and the Director projected flo is and loadings. If
these projected flo . -:s ar.d loadings exceed the cur-
rently permitted flotzs and loadings, the permittee
will subnit to the Regional Administratcr and the
Director a plan insuring that additional treatment.
capacity will be provided in keeping with approved
water qu2lity rn ncgement plans.

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APPENDIX I (CONT.)
Monitoring and Re.porting
Page SC 4 of 5
The permict e
discharge (2)
according to
shall monitor and record the quality and quantity of
001 the Eryent Co1lec e !aot water Treatment Facility
the following scnedule and other provisions:
Parameter
Minimum Frequency
of Analysis
Sample type
Until Jιnuary 1, 1979
Fl nt ’
B3D —5
TSS
Settleabie Solids
Fecal Coliform
Continuon n ’d1
1 X monthly
1 X monthly
1 X daily
1 X monthly
1 X daily
1 X daily
1 X monthly
Daily avg., max., m i i i .
8—hour Comr,osjte
8—hour Commosite
Grab
Grab
Grab
Any grab sac ple or ccw 2osite sar’p]c re uircd to be taken less fre-
quently thin daily sh 11 be taken d’:r .r.c; the pcriod of !1onday
through Friday inclusive. Eight—hoir composites and grab samples
shall beftaken between 6 a.m. and 6 p.ti.
pH
-
Chlorine Residual
Grab
rotal
Phosohorus

, -
“b ...
,:
8—hour
Conoosite
S’b..
.
.-
f
-
“•‘_ ) -
After
N
-
-
—
.
.
r--
‘
—
.
,
.‘
-“
.
% _
4
..

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APPENDIX II
STATE OF RHODE ISLAND
WATER QUALITY STANDARDS
aJ SS B Suitable for bathing, other recreational purposes,
agricultural uses, industrial processes and cooling;
excellent fish and wildlife habitat; good aesthetic
vali ; acceptable for pi.blic water s p1y with
appropriate treatnent.
Standaix]s of Water Quality
Item Water Quality Criteria
1. Dissolved oxygen 75% saturation, 16 hours/day 5 ugh
at any tine
2. Sludge deposits-—solid refuse None alla 1 ’zable
—floating solids, oils, and
grease——scum
3. Color and turbidity None in suth concentrations that would
izrpair any usages specifically assigned
to this Class
4. Coliform bacteria per 100 nil Not to exceed a nedian of 1,000 per 100
ml nor utore than 2,400 in nore than 20%
of sauples collected
5. Taste and odor None in suth concentrations that would
inpair any usages specifically assigned
to this Class nor cause taste and odor
in edible fish
6. pH 6.5 — 8.0
7. AllcMable tenperature increase Only sud increases that will not inpair
any usages specifically assigned to
this Class (See Note 7)
8. themical stit nts (See Note 5)

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APPE&DIX It (coN :)
ES :
1. These Standards do not apply to nditions brought about by natural
causes.
2. Class D waters will be assigned only where a higher water use Class
cannot be attained after all appropriate waste treatmant nethods
are utilized. P ppropriate waste treat]rent shall be secxndary
treatnent with disinfection or the equivalent. Lesser degrees of
treatnent will be permitted only where it can be denxnstrated that
attainnent of the specified water use class standard of qw 1i ty
can be effectuated.
3. All sewage treatirent plant efflt ts shall re ive disinfection
before discharge into a watercourse.
4. Any water falling bela i the standards of quality for a given Class
shall be nsidered satisfactoi:y for the uses indicated for that
Class. 1aters falling belc •z the standards of quality for Class D
shall be Class E and considered to be in a nuisan cx ndition.
5. Waters shall be free fran chemical constituents and radioactive
materials in cona ntrations or cx rbinations which would be harmful
to ht mian, animal, or a uatic life for the appropriate, rest sensi-
tive and governing water class use. In areas where fisheries are
the governing considerations and approved limits have not been
established, bio-assays shall be porforired as required by the
appropriate agencies. For publiα drinking water supplies the
limits prescribed by the United States Pthlic Health Servica will
be used where not st erseded by Irore stringent signatory State
requirextents.
6. Deleted
7. The tcn erature increase shall not raise the tenperature of the
recx iving waters above 68°F for waters supporting cold water
fisheries and 83 0 F for waters supporting a warm water fishery.
In no case shall the terrperature of the recaiving water be raised
nore than 4 0 F.
8. Sludge deposits, floating solids, oils, grease and SCUITt shall not be
allo.icd, exo pt for sudi small arrounts that may result fran the
discharge of appropriately treated sewage or industrial waste
effluents.
9 • The minirrrum average daily flo i for seven consecutive days that can
be expected to occur a in ten years shall be the miniitumi flo. ,
to which the standards apply.
-17-

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•/
10. Class B and C waters shall be sibstantially free of pollutants
that:
a) Unduly affect the cxziposition of bottan fauna,
b) Unduly affect the physical or themical nature of the
bottan,
C) Interfere with the propagation of fish.
11. Class A waters in use for drinking water supply may be sthject to
restricted use by State and local authorities.

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