FINAL TASK REPORT STREAM GAUGING · 2021. 1. 31. · Stream gauging was conducted on November 19, 1987 (Round 1), and on March 30, 1988 (Round 2). Stream discharge data were acquired

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C-583-1-9-123 January 27,1989

SDMS DocID

Final Task Report TDD No. F1-8707-06 Stream Gauging Reference No. $375RI10EI12 Rose Hill Regional Landfill CERCLIS No. RID980521025 South Kingstown, Rhode Island

1.0 INTRODUCTION

The NUS Corporation Field Investigation Team (NUS/FIT) was directed by the Waste Management Division of the Region I U.S. Environmental Protection Agency (EPA) to conduct an Expanded Site Inspection (ESI) of the Rose Hill Regional Landfill. A Task Work Plan for stream gauging (TWP No. D583-10-7-4) (NUS/FIT, 1987) was developed under TDD No. Fl-8707-06 in November, 1987. Other tasks completed for this ESI are detailed in the following reports:

• Final Task Report for Surface Water and Sediment Sampling • Final Task Report for Geophysical Survey • Final Task Report for Soil Sampling • Final Task Report for Leachate Sampling • Final Summary Report

The purpose of the stream gauging study was to determine whether the Saugatucket River and the Mitchell Brook were gaining or losing streams in the area near the Rose Hill Regional Landfill. This information was used to assess the groundwater - surface water relationship and test the hypothesis that the Saugatucket River was not a hydrologic barrier to contaminant migration in groundwater. The Saugatucket River is located to the east of Rose Hill Regional Landfill and flows south toward the Atlantic Ocean. The Mitchell Brook flows south over the landfill between the solid waste landfill and bulky waste disposal area (Figures IA and IB). Gaining streams receive groundwater discharge from the aquifer, and can potentially act as hydrologic barriers to groundwater flow. Losing streams recharge the aquifer and do not act as barriers to regional groundwater flow. If the Saugatucket River were determined to be a losing stream, then a contaminant plume potentially originating at the Rose Hill Regional Landfill could bypass the river, given that regional flow was to the east or southeast. If the Saugatucket were a gaining stream, then potentially contaminated groundwater could be discharging to the river. In this case, however, an extensive hydrologeologic study would be necessary to determine if the river acted as a complete hydrologic barrier.

Originally, a piezometer study was to be used to determine if groundwater beneath the site discharges into the Saugatucket River or if the river recharges groundwater. However, due to difficulties with accessing the proposed piezometer locations, two rounds of stream gauging were completed as an alternative to ascertain groundwater flow relative to the Saugatucket River and Mitchell Brook. The data collected is summarized in the following report, and interpretations are based on this data alone. Interpretations may change if additional gauging rounds are conducted or more extensive groundwater studies are completed.

2.0 TECHNICAL APPROACH

Stream gauging was conducted on November 19, 1987 (Round 1), and on March 30, 1988 (Round 2). Stream discharge data were acquired during the late fall and early spring in order to determine seasonal variations in stream flow. Trip reports for both gauging rounds are presented in

BASE MAP IS A PORTION OF THE U.S.G.S. NARRAGANSETT PIER AND KINGSTON,<tHOOE ISLAND QUADRANGLE 17.5'SERIES. 1957/PHOTOREVISEO 1070 ANO 18751

1 MILE i

1000 1000 2000 3000 4000 MOO 6000 7000 FEET •—• •—' •—' 3

SCALE 1:14000

STREAM GAUGING LOCATIONS ffl ROSE HILL REGIONAL LANDFILL CORPORATION

SOUTH KINGSTOWN RI

FIGURE 1 A

FROM: ENGINEERING 6 HYDROGEOLOGICAL ASSESSMENT OP THE ROSE HILL LANDFILL, YORK WASTEWATER CONSULTANTS, INC.. FEBRUARY 17, 1984.

STREAM GAUGING LOCATION MAP IN DETAIL

ROSE HILL REGIONAL LANDFLL SOUTH KINGSTOWN RI

CORPORATION

FIGURE I B

C-583-1-9-123 January 27, 1989

Attachment 3. Field data and calculations are shown in Tables 1-5 in Attachment 1 (November 19, 1987) and Tables 1-5 in Attachment 2 (March 30, 1988).

In order to determine if the Saugatucket River was a gaining or a losing stream in the area adjacent to the Rose Hill Regional Landfill, total stream discharge values from a location downstream of the site were compared to total discharge from a location upstream of the site after contributions from the two local tributaries were subtracted out.

Five gauging stations (Figures IA and 1B) were established to record total stream discharge. Total discharge was determined by calculating the cross-sectional area of the stream in the stream bed or culvert and multiplying it by the stream velocity as measured by a Marsh McBirney electronic flow meter model 201D. Culverts were used to determine discharge at stations 2, 3 and 5. The cross-sectional area of water in the culvert was determined by measuring the diameter of the culvert, and the depth of the water in the center of the culvert and then applying the equation given in the Task Work Plan (NUS/FIT, 1987) and in Tables 2, 3 and 5 (Attachments 1 and 2). Measurements were conducted in accordance with the Task Work Plan (NUS/FIT, 1987); minor deviations to the work plan are described in the trip reports for both rounds (Attachment 3). Velocity measurements were taken twice at each location to ensure an accurate reading. Each velocity reading was the average velocity of the stream over 100 seconds by using a built-in time-constant feature on the flow meter. Stations were chosen to determine total discharges of the Saugatucket River and Mitchell Brook upstream and downstream of the site (Figure 1 A).

Measurements from station 1 provided data to calculate discharge upstream of the site. Measurements were conducted in the river bed as described in the trip reports (Attachment 3) and the Task Work Plan (NUS/FIT, 1987). Since the river depth varies across its width, a section of the river was divided into 1.5 foot wide sections in order to calculate cross-sectional area of the water in the river bed. During the round 1 stream gauging the river depth was measured at each end of each section and the two depth measurements were averaged. Velocity measurements were taken in the middle of each section at six tenths of the average depth. Discharge was calculated for each section and values for all sections were summed to obtain the total discharge for the river at station 1. During stream gauging round 2, depth and velocity were measured at the middle of each section, instead of at the ends. This eliminated the need to average the depth measurements. Both methods assume that the area of the sections is a rectangle; therefore, only a small amount of error is introduced in calculating the cross-sectional area of the river (Attachments 1 and 2, Tables IA and IB).

Station 2 measurements provided data to calculate discharge for the Saugatucket River downstream of the landfill (Figures IA and 1B). This station location was chosen to be as close to the southern edge of the site as possible. The discharge value for this point represents the total discharge of the Saugatucket River and the Mitchell Brook and the unnamed brook which both contribute to the Saugatucket River, approximately 500 feet upstream of this point. Thick brush growth along the river prevented access for stream gauging activities any nearer to the southern edge of the site. Measurements were taken in two parallel culverts under Saugatucket Road. All the river water flows southward through these two culverts; therefore total discharge for the river can be calculated by determining discharge through each of the culverts, and adding the values. Water depth and diameter of the culverts was measured with a gauging staff. Velocity readings were taken in the center and on the sides of the culvert during stream gauging round 1. The average of these three readings was used in the calculation of total discharge. Since the average of these three readings was so near the velocity value for the center of the culvert, only one velocity reading in the center of the culvert was taken during stream gauging round 2. Discharge values were calculated for both culverts and added together to determine total discharge for the river at this location (Attachments 1 and 2, and Table 2).

Station 3 is located southwest of the landfill at a culvert for an unnamed brook under Rose Hill Road (Figures IA and IB). This brook flows into the Saugatucket River downstream of the site but

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C-583-1-9-123 January 27, 1989

upstream of Station 2. The station was established to determine the contribution of total surface water discharge to the Saugatucket River from the unnamed brook. Station 3 was established at the accessible location nearest to the intersection of the unnamed brook and the Saugatucket River in order to acquire accurate flow readings to calculate the brook's contribution to the Saugatucket River. Total discharge was determined through the culvert (Attachments 1 and 3, Table 3). • The depth of the water and diameter of the culvert were measured with a carpenter's ruler for both gauging rounds (Attachment 3). Velocities were measured in the center of the culvert.

Station 4 is located on the Mitchell Brook at the transfer station access road. This station was set up to determine the contribution of The Mitchell Brook to the Saugatucket River and as a downstream data point to determine if the Mitchell Brook is a gaining or losing stream. Station 4, was established at the accessible location nearest to the Mitchell Brook-Saugatucket River intersection in order to calculate the discharge contribution to the Saugatucket River. For round 1, measurements were taken in the stream bed. Velocity readings could not be obtained in the culvert located under the transfer station access road, (Figures IA and 1B) because the water level was too low. The cross sectional area of the stream was determined by calculating the area of a trapezoidal shaped section of the stream located a few feet upstream of the culvert (Attachment 3). The stream cross section was divided into two trapezoidal shape sections. Velocity readings were taken from both sections. Total discharge was calculated for both sections were added to obtain total discharge for the brook (Attachment 1, Table 4).

For round 2, increased flow at station 4 allowed measurements to be completed in the rectangular shaped culvert. The culvert has a trapezoidal shape near the bottom. The bottom cross section of the culvert was divided into three sections-two trapezoidal sections on the end and one rectangular section in the center. Depth was measured in the center with the gauging staff, and the width of the culvert was measured with a tape measure. Discharges were calculated for each section and were added together to obtain the total discharge for the Mitchell Brook at station 4 (Attachment 2, Table 4).

Measurements from station 5 provided discharge data for the northern part of the landfill to compare with the data for station 4 in order to determine if the Mitchell Brook is a gaining or losing stream. Measurements were taken in two culverts for both gauging rounds. Discharge was determined for each culvert and the figures were added to obtain the total (Attachments 1 and 2, Table 5). The depth of water and diameter of culverts were measured with a ruler.

3.0 RESULTS

In order to determine if the Saugatucket River was a gaining or losing stream in the area adjacent to the Rose Hill Regional Landfill, total stream discharge values at station 2 (the location downstream of the site) were compared to total discharge at station 1 ( the location upstream of the site) after contributions from station 3 (the unnamed brook) and station 4 (the Mitchell Brook) were subtracted out.

The Task Work Plan stated that the total surface water discharge for the Saugatucket River upstream of the site is equal to the sum of the discharge figures at stations 1, 3 and 4 (Attachments 1 and 2, Tables IA, IB, 3, 4,). However, the methodology for determining if the Saugatucket River is a gaining or losing stream was simplified by subtracting the total surface water contributions from the Mitchell Brook and the unnamed brook from the discharge figure for station 2, located downstream of the site. An increase in discharge downstream was considered to be indicative of gaining conditions, and a decrease was interpreted as losing conditions. The method assumed that the contribution by or loss to groundwater in the area between stations 2, 3, and 4 was very small compared to the loss or gain between stations 1 and 2.

Values for both rounds 1 and 2 indicate that the groundwater is discharging to the river between stations 1 and 2, and therefore the Saugatucket River is gaining in this area. After subtracting

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C-583-1-9-123 January 27, 1989

average discharge values for stations 3 and 4, discharge at station 2 was 15.2% greater than the average discharge for station 1 during round 1. Data for round 2 indicate an average discharge gain of 17.5% (Table 1). According to the Task Work Plan, this gain is considered greater than any error potentially introduced through stream gauging measurements, which was 5% (NUS/FIT, 1987).

Similiar calculations performed on discharge data from round 2 for the Mitchell Brook indicated that the brook is a losing stream in the area west of the solid waste landfill portion of Rose Hill Regional Landfill. Average discharge for station 5, located in the northern part of the landfill, is 5.03 cubic feet per second. Average discharge for station 4, located in the southern part of the landfill, is 3.87 cubic feet per second ( Attachment 2, Table 4). The brook loses 23% of its flow between stations 5 and 4.

Average discharge values from round 1 for stations 4 and 5 are the same. The brook was neither a gaining nor a losing stream at the t ime measurements were recorded in November 1987 (Attachment 1, Table 4). Also see Table 1.

An earlier gauging study of the Mitchell Brook was conducted in November and December 1981, and March and April 1982, by M. Brickell. Weirs were set up near present stations 4 and 5 and where the brook crosses Rose Hill Road north of the solid waste landfill (Figures 1A and 1B) and discharge data were gathered regularly. Results from this study indicated that the brook was a gaining stream between stations 4 and 5 but a losing steam further upstream of this section. However, the study stated the net result is that the brook loses water overall between the gauging station at Rose Hill Road and station 4 in November and December 1981, and gains water overall in late December 1981 and March and April 1982. (Brickell, 1982).

4.0 CONCLUSION

The Mitchell Brook was determined to be a losing stream between stations 4 and 5 in round 2. The status of the brook as a gaining or losing stream appears to vary with season as shown by the differences between discharge values from rounds 1 and 2. Data from the 1981 gauging study by M. Brickell also confirms this (Brickell, 1982).

Data from the two NUS/FIT stream gauging rounds indicate that the Saugatucket River acts as a discharge area for groundwater in the region directly east and southeast of the Rose Hill Regional Landfill. Potentially, contaminants originating at the site are likely to migrate to surface water via groundwater discharge to the river. However, the river may not act as a complete barrier to contaminants, since a component of deeper groundwater flow may bypass the river. An extensive hydrogeologic study would be required to determine if the river acted as a complete barrier.

Submitted By:

/yp</lr***j fasfa*r*~ KiirpaskAnthonAnthonyy Kurpaskaa 7

Task Manager

Approval: W l J ) _ [ ̂ ft/——^ 'Joanne O. Morin FIT Office Manager

AK/kk

NUS CORPORATION

TABLE 1 ROSE HILL REGIONAL LANDFILL

NOVEMBER 19,1987, MARCH 30,1988 STREAM GAUGING DATA SUMMARY

Saugatucket River Round I Round II

First Second First Second Read! no. Reading Readinq Keadinq ft.3/$ec. ft.3/sec. ft.3/sec. ft.3/sec

Discharge for Station 1 6.13 6.26 24.8 24.5 Upstream of the site

Average of first and second reading 6.19 24.65

Total discharge south of the landfill Station 2 8.85 8.85 34.20 34.10

Station 3 0.29 0.40 1.35 1.29 Station 4 0.34 1.41 3.68 4.06

Subtracting the Contribution of (station 4) Mitchell Brook and Unnamed Brook (station 3) 7.22 7.04 29.17 1.29

Average of first and second reading 7.13 28.96

Average gain at Station 2 0.94 4.31

REFERENCES

Brickell, M., 1982. "Assessment of Groundwater Contamination from a Municipal Landfill and Evaluation of Remedial Measures", Thesis submittal in partial fulfillment of the requirements for a Master of Science Degree in Civil and Environmental Engineering, University of Rhode Island.

NUS/FIT, 1987. Task Work Plan for Stream Gauging at Rose Hill Regional Landfill, Anthony Kurpaska/Task Manager. Rose Hill Regional Landfill Expanded Site Inspection (ESI), TDD No. F1-8707-06. Novembers.

Attachment 1 Data Tables

November 19,1987 Stream Gauging Round 1

TABLE IA ROSE HILL REGIONAL LANDFILL

NOVEMBER 19,1987 STREAM GAUGING DATA

STATION 1

Station 1 - Saugatucket River upstream of the Rose Hill Regional Landfill

FIELD MEASUREMENTS

Velocity Water Measurement Gauging (1>

Width ot (ft) depth (in) Interval (ft) Location (ft) Depth (ft)

0 13.88 0-1.5 0.75 0.75

1.5 16.25 1.5-3.0 2.25 0.83

3.0 17 3.0-4.5 3.75 0.89

4.5 18.75 4.5-6.0 5.25 0.97

6.0 20 6.0-7.5 6.75 1.01

7.5 20.75 7.5-9.0 8.25 1.00

9.0 19.56 9.0-10.5 9.75 0.94

. 10.5 18.19 10.5-12.0 11.25 0.85

12.0 16 12.0-13.5 12.75 0.58

13.5 7.44 13.5-15 14.25 0.18

15 0

Notes:

First Velocity Readinq (ft/sec)

0

0.29

0.14

0.31

0.55

0.51

0.39

0.35

0.07

0

Second Velocity Readinq(ft/sec)

0

0.27

0.15

0.34

0.59

0.51

0.40

0.35

0.04

0

1. The gauging depth was calculated by multiplying the average depth by 0.6. Measurements were recorded at the middle of each interval (velocity measurement location) at the gauging depth indicated.

ATTACHMENT I

TABLE 1B ROSE HILL REGIONAL LANDFILL


STATION 1

Station 1 -Saugatucket River upstream of the Rose Hill Regional Landfill

DISCHARGE CALCUALTIONS

Discharge(ft3/sec) Discharge(ft3/sec) Average First Velocity Second Velocity First Velocity Second Velocity

Interval DeDth(ft)(1)Area(fti) (2) Readino(ft/sec) Readinq(ftZsec) Readinq(3) Readinq (3)

0-1.5 1.26 1.89 0 0 0 0

1.5-3-0 1.39 2.09 0.29 0.27 0.61 0.56

3.f>4.5 1.49 2.24 0.14 0.15 0.31 0.34

4.5-6.0 1.61 2.42 0.31 0.34 0.75 0.82

6.0-7.5 1.70 2.55 0.55 0.59 1.40 1.50

7.5-9.0 1.68 2.52 0.51 0.51 129 1.29

9.0-10.5 1.57 2.36 0.39 0.40 0.92 0.94

10.5-12.0 1.42 2.13 0.35 0.35 0.75 0.75

"12.0-13.5 0.98 1.47 0.07 0.04 0.10 0.06

13.5-15.0 0.31 0.47 0 0 0 0

Total Discharge at Station 1 (ft3/sec)(4) 6.13 ' 6.26

Notes:

1. Average depth calculated by averaging the depth measurement at each end point of the interval (Table 1).

2. Area calculated by multiplying the average depth by 1.5 ft. (the width of each section)

3. Discharge = Area x Velocity for each section

4. Total Discharge = Sum of the discharge for each section.

ATTACHMENT I



STATION 2

Station 2-Saugatucket River downstream of the Rose Hill Regional Landfill

FIELD MEASUREMENTS

Location of Water Corrected(l) Gauging(2) First Velocity Second Velocity Measurement Deoth(ft) Depth (ft) Depth (ft) Readinq (ft/sec) Readinq (ft/sec)

Culvert 1 1 ft W of center 1.70 1.6 1.02 0.70 0.65 Center 2.23 2.13 1.34 0.68 0.67 1 ft. E of center 1.70 1.6 1.02 0.70 0.70

Measured diameter 5.1ft Corrected diameter (1) 5.0 ft

Culvert 2 1 ft. W of center 1.7 1.6 1.02 0.41 0.41 Center 2.23 2.13 1.34 0.44 0.44 1 ft. E of center 1.7 1.6 1.02 0.42 0.47

Measured diameter 5.1 Corrected diameter (1) 5.0

DISCHARGE CALCULATIONS

Area (ft2)(3) Discharge (ft3/sec) Discharge (ft3/sec) Average Velocity Average velocity First Velocity Second Velocity First Readinq Second Readinq Readinq (4) Readinq(4)

Culvert 1 0.69 0.67 7.97 5.50 5.34 Culvert 2 0.42 0.44 7.97 3.35 3.51

Total Discharge at Station 2 (ft3/sec)(5) 8.85 8.85

Notes: 1. Due to an error in the construction of the gauging staff, measurements were recorded as 0.1 f t . toohigh. At

locations where the gauging staff was used, this amount was subtracted from the measured readings to get the corrected (actual) value.

2. The gauging depth was calculated by multiplying the measured depth by 0.6.

3. Cross sectional area of the water in culverts was calculated using the following equation: Area = Arccos ( r -h) r2 - (r - h) V2rh - h*

r where r = radius of culvert

h = height (depth of water at center of culvert)

4. Discharge = Area x Velocity

5. Total discharge = Sum of the discharge for culverts 1 and 2.

ATTACHMENT!


NOVEMBER 19, 1987 STREAM GAUGING DATA

STATION 3

Station 3 - Unnamed brook

FIELD MEASUREMENTS

Location of Water Gauging First Velocity Second Velocity Measurement Depth (ft) Depth (ft) (1) Readinq(ft/sec) Readinq(ft/sec)

Center 1.22 0.73 0.08 0.11

Measured Diameter = 2.45 ft


Discharge (ft3/sec) Discharge (ftJ/sec) Area (fti)(2) First Velocity Readinq(3) Second Velocity Readinq (3)

3.67 0.29 0.40

Notes:


2. Cross sectional area of the water in the culvert was calculated using the following equation: Area = Arccos ( r -h l r2 - (r - h) V2rh - h2

where r = radius of culvert h = height (depth of water at center of culvert)


ATTACHMENT!



STATION 4

Station 4 -Mitchell Brook at Transfer Station access road

FIELD MEASUREMENTS

Measured Corrected (1) First Velocity Second Velocity Depth (ft) Depth (ft) Readinq (ft/sec) Readinq (ft/sec)

Point A 0.6 0.50 0.89 0.95

Point B ff.58 0.48 1.02 1.04


Discharge (ft3/sec) (3) Discharge (ft3/sec) (3) Area (2) First Velocity Readinq Second Velocity Readinq

Section A 0.69 0.61 0.66 Section B 0.72 0.73 0.75

Total Discharge at station 4 (4) 1.34 1.41

Notes:

Due to an error in the construction of the gauging staff, measurements were recorded as 0.1 ft. too high. At locations where the gauging staff was used, this amount was subtracted from the measured readings to get the corrected (actual) value.

Cross sectional area of the stream bed was calculated using the following equations, (area of a trapezoid), based upon field measurements:

Area A = $ (0.775 + 1.975) (0.5) = 0.6875 ft2

Area B - +(1.025 + 1.975) (0.48) = 0.72 ft2


4. Total Discharge = Sum of the discharge for Sections A and B.

ATTACHMENT!



STATION 5

Station 5 - Mitchell Brook at the Solid Waste Landfill access road

FIELD MEASUREMENTS

Water Gauging(2) First Velocity Second Velocity Diameter (ft) Depth(ft) Depth Readinq(ft/sec) Readinq(ft/sec)

Culvert A 3.02 0.75 0.45 0.54 0.54

Culvert B 3.00 Measured 1.1 0.66 0.30 0.30 Corrected (1) 1.0


Discharge (ft3/sec) Discharge (ft3/sec) AreaO) First Velocity Readinq (4) Second Velocity Readinq (4)

Culvert A 1.39 0.75 0.75 CulvertB 2.06 0.62 0.62

Total Discharge at Station 5(ft3/sec)(5) 1.37 1.37

Notes:

1. Due to an error in the constrution of the gauging staff, measurements were recorded as 0.1 ft. too high. At locations where the gauging staff was used, this amount was subtracted from the measured readings to get the corrected (actual) value.


3. Cross sectional area of the water in culvert was calculated using the following equation: Area = Arccos (>-h) r2 - (r - h) V2rh - h2

r where r = radius of culvert


4. Discharge = Area x Velocity 5. Total discharge = Sum of the discharge for culverts 1 and 2.

ATTACHMENT I

Attachment 2 Data Tables

March 30,1988 Stream Gauging Round 2

TABLE IA ROSE HILL REGIONAL LANDFILL

MARCH 30, 1988 STREAM GAUGING DATA

STATION 1

Station 1 -Saugatucket River Upstream of the Rose Hill Regional Landfill

FIELD MEASUREMENTS

Water Velocity and Depth Gauging(i) Interval Depth (in) Measurement Location(ft) Deoth(ft)

0-1.5 17.12 0.75 0.86

1.5-3.0 19.56 2.25 0.98

3.0-4.5 20.62 3.75 1.03

4.5-6.0 22.38 5.25 1.12

6.0-7.5 25.06 6.75 1.25

7.5-9.0 26.19 8.25 1.31

9.0-10.5 27.88 9.75 1.39

10.5-12.0 28.94 11.25 1.45

12.0-13.5 27.44 12.75 1.37

13.5-15.0 24.00 14.25 1.20

15.0-16.5 19.75 15.75 0.99

16.5-18.0 17.75 17.25 0.89

18.0-19.5 16.50 18.75 0.82

Notes:

1. Gauging depth calculated by multiplying measured depth by 0.6.

First Velocity Readinq (ft/sec)

0.77

0.73

0.88

0.88

1.05

0.85

0.76

0.64

0.44

0.41

0.51 f .

0.44

0.32

Second Velocity Readinq (ft/sec)

0.75

0.71

0.87

0.84

1.04

0.86

0.77

0.63

0.43

0.40

0.47

0.45

0.32

ATTACHMENT 2

TABLE IB ROSE HILL REGIONAL LANDFILL


STATION 1

Station 1 - Saugatucket River upstream of the Rose Hill Regional Landfill

DISCHARGE CALCUALTIONS

Discharge(ft3/sec) Discharge(ft3/sec) First Velocity Second Velocity First Velocity Second Velocity

Interval Deoth(ft) Areafftl) (1) Readino(ft/sec) Readinq(ftZsec) Readinq (2) Readinq (2)

0-1.5 1.43 2.14 0.77 0.75 1.65 1.60

1.5-3-0 1.63 2.44 0.73 0.71 1.78 1.73

3.0-4.5 1.72 2.58 0.88 0.87 2.27 2.24

4.5-6.0 1.86 2.79 0.88 0.84 2.46 2.34

6.0-7.5 2.09 3.14 1.05 1.04 3.30 3.27

7.5-9.0 2.18 3.27 0.85 0.86 2.78 2.81

9.0-10.5 2.32 3.48 0.76 0.77 2.64 2.68

10.5-12.0 2.41 3.62 0.64 0.63 2.32 2.28

12.0-13.5 2.29 3.44 0.44 0.43 1.51 1.48

13.5-15.0 2.00 3.00 0.41 0.40 1.23 1.20

15.0-16.5 1.65 2.48 0.51 0.47 1.26 1.17

16.5-18.0 1.48 2.22 0.44 0.45 0.98 1.00

18.0-19.5 1.38 2.07 0.32 0.32 0.66 0.66

Total Disch arge at Station 1 (ft3/sec] 1(3) 24.8 24.5

Notes:

1. Area calculated by multiplying depth at middle of each interval by width of each interval 1.5 ft.

2. Di scharge = Area x vel oci ty for each secti on

3. Total Discharge is the sum of the discharge for each section.

ATTACHMENT 2



STATION 2

Station 2 - Saugatucket River downstream of the Rose Hill Regional Landfill

FIELD MEASUREMENTS

Location of Water Gaugingd) First Velocity Second Velocity Measurement Depth(ft) Depth(ft) Readinq(ftZsec) Readinq(ftZsec)

Culvert 1 2.25 1.35 2.34 2.38

Culvert 2 2.30 1.38 1.61 1.55

Diameter of culverts 5.0 ft.


Discharge (ft3/sec) Discharge (ft3/sec) Area(ft2)(2) First Velocity Readinq (3) Second Velocity Readinq (3)

Culvert 1 8.57 20.0 20.4 Culvert 2 8.82 14.2 13.7

Total Discharge at Station 2{ft3/sec)(4) 34.2 34.1

Notes:

1. Gauging depth was calculated by multiplying the measured depth by 0.6.

2. Cross sectional area of culverts was calculated by using the following equation: Area = Arccos tV-h| r2 - (r - h) V2rh - h2

where r= radius of culvert



4. Total Discharge = Sum of the discharge for culverts 1 and 2

ATTACHMENT 2



STATION 3

Station 3 - Unnamed brook

FIELD MEASUREMENTS

Location of Water Gaugingd) First Velocity Second Velocity Measurement Depth(ft) Depth Readinq(ft/sec) Readinq(ft/sec)

Center of

Culvert 1.1 0.66 0.66 0.63

Measured Diameter of culvert = 2.45 ft.


Discharge (ft3/sec) (3) Discharge (ft3/sec) (3) Area(ft2)(2) First Velocity Readinq Second Velocity Readinq

2.05 1.35 1.29

Notes:

1. Gauging depth was calculated by multiplying to measured depth by 0.6.

2. Cross sectional area of culverts was calculated by using the following equation: Area = Arccos ( r -h j r2 - (r - h) V2rh h2

r where r= radius of culvert



ATTACHMENT 2


MARCH 30,1988 STREAM GAUGING DATA

STATION 4

Station 4 - Mitchell Brook at transfer station Access Road

FIELD MEASUREMENTS

First Velocity Second Velocity Measurement Depth(ft) Readinq(ft/sec) Readinq(ft/sec)

Point A 0.4 1.64 1.60 Point B 0.4 1.25 1.40 Point C 0.4 1.00 1.30

Measured Diameter of culvert = 2.45 ft.


Discharge (ft3/sec)(2) Discharge (ft3/sec)<2) Area (ft. 2) (1) First Velocity Readinq Second Velocity Readinq

Section A 0.87 1.43 1.39 Section B 1.1 1.38 1.54 Section C 0.87 0.87 1.13

Total Discharge at Station 4 (3) 3.68 4.06

Notes:

1. Area for sections A and C calculated by using equation for the area of a trapezoid. Area of Section B is equal to area of a rectangle. Based on field measurements the area of sections are as follows:

Area A = ±(2.0 + 2.33)0.4 = 0.87 ft.2

AreaB = (2.75) (0.4) = 1.1 ft2

Area C = #2.0 + 2.33) 0.4 - 0.87 ft2


3. Total Discharge = the sum of the discharge for sections A, B and C.

ATTACHMENT 2



STATION 5

Station 5 - Mitchell Brook at the Solid Waste Landfill access road

FIELD MEASUREMENTS

WateWaterr Gaugingd) First Velocity Second Velocity Diameter (ft) Deoth(ft) Depth Readinq(ft/secl1 Readinq(ft/sec)

Culvert A 3.02 0.92 0.55 2.50 2.48

CulvertB 3.00 1.15 0.69 0.22 0.20


Discharge (ft3/sec) Discharge (ft3/sec) Area(2) First Velocity Readinq (3i Second Velocity Readinq I3i

Culvert A 1.81 4.52 4.49 Culvert B 2.49 0.55 0.50

Total Discharge at Station 5 (ft3/sec) (4) 5.07 4.99

Notes:

1. Gauging depth was calculated by multiplying the measured depth by 0.6.

2. Cross sectional area of the culverts was calculated by using the following equation: Area = Arccosfr- hj r2-(r- h) V2rh - h2

x r ' where r= radius of culvert



4. Total discharge = Sum of the discharge for culverts A and 8

ATTACHMENT 2

Attachment 3 Trip Reports for Rounds 1 and 2 Stream Gauging

NU C O R P O R A T I O N

1 S CRQSSY DPIVE BEDFORD. MASSACHUSETTS 0 1 7 3 0 B17-275-2370

REGION 1 FIT/EPA CORRESPONDENCE C-583-12-7-65

TO: DON SMITH/EPA BOSTON DATE: DECEMBER 17,1987

FROM: JWmONY KURPASKA COPIES: FILE

SUBJECT: TRIP REPORT ROSE HILL REGIONAL LANDFILL STREAM GAUGING TDD No. FI-8707-06 Reference No. S375R110E112 CERCLIS No. RID980521025

On November 20, 1987, NUS/FIT personnel Barbara Felitti, Kenneth Leach and Anthony Kurpaska acquired field stream gauging measurements at a total of five gauging stations (Figure 1). The weather was sunny and warm with temperatures in the upper 50's. Ken Leach and Anthony Kurpaska performed all stream velocity and stream dimension measurements, and Barbara Felitti recorded measurements and monitored the ambient air for readings above background with an HNu. No readings above background were noted. All stream velocity measurements were taken with an electronic flow meter as previously described in the Task Work Plan.

Upon arriving onsite, NUS/FIT staff started gauging measurements at station number 1 (Figure 1). Station number 1 was moved from the original location specified in the Task Work Plan because this eliminated the need to take measurements at both the Fresh Meadow Brook and the Saugatucket River. NUS/FIT sampling personnel discovered access to this location also the river during surface water and sediment sampling conducted on November 17, 1987. Also, since this station is closer to the northern edge of the site, readings taken at this location will provide a more accurate discharge figure for surface water flowing upgradient of the site.

The next three stations numbered 2, 3 and 4 were not relocated, but were renumbered, since the station on Fresh Meadow Brook was eliminated. Because the Mitchell Brook was flowing again, station 5 was added along the landfill access road shown in Figure 2 in the Task Work Plan. This property belongs to Ed Frisella, and prior arrangements were made to attain access to his property (Figure 1). Flow measurements and stream dimension measurements were taken in the strembed in accordance wi th "Guidelines for Stream Gauging" (Attachment A in Task Work Plan), with one exception: the stream width was divided into 1.5 foot sections rather than 1 foot sections as recommended in Attachment A of the Task Work Plan. The wider section of more practical for determining cross sectional areas for large rivers and streams.

Readings at station 4 were obtained in accordance with Attachment A in the Task Work Plan. At stations 2, 3 and 5 measurements were taken in culverts. Diameter measurements of the culverts and depth measurements of the water in the culverts were taken with ruler or the gauging staff. Since the culverts at station 2 were large (5 feet), three f low velocity measurements were taken in the culvert - two one foot from the edges and one in the middle. At stations 3 and 5 the culverts were three feet in diameter or less and only one velocity

C-583-12-7-65 December 17, 1987

MEMO TO: DON SMITH

measurement was necessary to acquire accurate velocity readings. These measurements were recorded in the center of the culvert.

At station 5, NUS/FIT personnel noted that all readings taken with the gauging staff were 0.1 feet too high. This error was caused by personnel error when constructing the gauging staff. This dimension, 0.1 feet, will be subtracted from all readings when data from this gauging round is compiled to correct the error resulting from the gauging staff. Gauging data will be compiled and interpreted in an upcoming report.

Approval: L/fnu-t o H*'*.* /oanne O. Morin FIT Office Manager

AK/rlr

cc: B. Felitti J. Connet LChu T. Plant M. Nalipinski/EPA Boston J. Crawford/RIDEM

•ASE MAP IS A PORTION OP THE U.S.G.S. NARRAGANSETT PIER ANO KINGSTON,RHODE ISLAND — QUADRANGLE 17.5'SERIES. 1967/PMOTOREVISED 1970 ANO 19781

1 MILE * 1000 2000 3000 4000 5000 6000 7000 ftET 1000

SCALE I'.MOOO

STREAM GAUGING LOCATIONS

ROSE HILL REGIONAL LANDFILL (JUHPCJRATPN

SOUTH KINGSTOWN RI

FIGURE 1

NU C O R P O R A T I O N

1 9 CROSBY DRIVE BEDFORD. MASSACHUSETTS 0 1 7 3 0 617 -273 -2370 REGION 1 FIT/EPA CORRESPONDENCE

C-583-4-8-56

TO: DON SMITH/EPA DATE: APRIL 19,1988

FROM: COPIES: FILE

SUBJECT: TRIP REPORT ROSE HILL REGIONAL LANDFILL STREAM GAUGING-ROUNDII TDD No. FI-8707-06 Reference No. S375R110E! 12 CERCLISNo. RID980521025

On March 30, 1988 NUS/FIT conducted a second round of stream gauging measurements for streams on or near the Rose Hill Regional Landfill, NUS/FIT personnel Anthony Kurpaska, Sherri Kasten and Kayleen Jalkut acquired field stream gauging measurements at the same five gauging stations as those previously set up for the first round of NUS/FIT stream gauging measurements conducted on November 20, 1987 (Figure 1). Anthony Kurpaska and Sherri Kasten completed all stream velocity and stream dimension measurements and Kayleen Jalkut recorded measurements and monitored ambient air w i th an HNu P1101 Photoionization Detector. No NHu readings above background were noted. All stream velocity measurements were taken with an electronic f low meter as described in the Task Work Plan.

Except for minor variations at stations 2 and 4, stream gauging measurements for each station were taken using the same methods used during the first stream gauging round, as described in the previous trip report and the Task Work Plan. Flow velocity measurements were taken only in the center of the culverts at station 2 instead of near the sides and in the center as done during round I. Measurements at station 4 were obtained in the rectangular culvert under the transfer station access road instead of in the streambed as done for round I, due to higher water level. Width of the culvert was measured wi th a measuring tape.

The gauging staff which was used for several stream depth measurements was repaired since the last stream gauging round. Readings taken using the staff are now correct within 0.5 feet.

Data from this stream gauging round and the previous one wil l be complied and interpreted in an upcoming report.

Approval: Pint O H ̂ Joanne O. Morin FIT Office Manager

AK/jj

B. Felitti cc: T. Plant J. Connet L Chu D. Pernice/EPA Boston M. Nafipinski/EPA Boston J. Crawford/RIDEM A. Good/RIDEM

•ASt MAP IS A PORTION OP THI U.S.G.S. MARRAOAKMTT HER ANO KINGSTON,RHOOI ISLAND — QUADRANGLE 17.9'SIRIBS. 1997/PHOTOMVISIO 1970 ANO 197SI

=4 1000 2000 3000 4000 MOO 4009 7009 FCCT 1000

SCALgnUOOO

STREAM GAUGING LOCATIONS

ROSE HHJL REGIONAL LANDRLL CORPORATION SOUTH KINGSTOWN RI

FIGURE 1

Documents

FINAL TASK REPORT STREAM GAUGING · 2021. 1. 31. · Stream gauging was conducted on November 19, 1987 (Round 1), and on March 30, 1988 (Round 2). Stream discharge data were acquired