final llreak: 3^ technical · final technical volume ii -appendices llreak:__3^ 18f woonasquatucket...
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FINALTECHNICAL
VOLUME II -APPENDICES
llreak:__3^18F
WOONASQUATUCKET RIVER SEDIMENTINVESTIGATION
CENTREDALE MANOR RESTORATION PROJECT SITENORTH PROVIDENCE, RHODE ISLAND
RESPONSE ACTION CONTRACT (RAC), REGION I
ForU.S. Environmental Protection Agency
ByTetra Tech NUS, Inc.
EPA Contract No. 68-W6-0045EPA Work Assignment No. 043-TATA-016P
TtNUS Project No. N0400
June 2000
TETRA TECH NUS, INC.V)
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FINAL TECHNICAL MEMORANDUM VOLUME II-APPENDICES
WOONASQUATUCKET RIVER SEDIMENT INVESTIGATION
CENTREDALE MANOR RESTORATION PROJECT SITE NORTH PROVIDENCE, RHODE ISLAND
RESPONSE ACTION CONTRACT (RAG), REGION
For U.S. Environmental Protection Agency
By Tetra Tech NUS, Inc.
EPA Contract No. 68-W6-0045 EPA Work Assignment No. 043-TATA-016P
TtNUS Project No. N0400
June 2000
Stepen S. Parker George rU GafcJner, P.E. Project Manager Program Manager
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TABLE OF CONTENTS FINAL TECHNICAL MEMORANDUM
WOONASQUATUCKET RIVER SEDIMENT SAMPLING CENTREDALE MANOR SITE
NORTH PROVIDENCE, RHODE ISLAND
SECTION PAGE
EXECUTIVE SUMMARY
1.0 PROJECT INTRODUCTION......................................................................................... 1-1
2.0 SITE BACKGROUND INFORMATION......................................................................... 2-1 2.1 Site Location and Description............................................................................ 2-1 2.2 Previous Environmental Investigations.............................................................. 2-4
2.2.1 Woonasquatucket River Sediment/Water Quality Analysis OEME, July 1998................................................................................... 2-4
2.2.2 Expanded Site Inspection Centredale Manor - Weston, March 1999............................................................................................ 2-6
2.2.3 Emergency Response Actions................................................................ 2-7 2.3 Woonasquatucket River Sediment Investigation............................................... 2-8
3.0 SITE MANAGEMENT/FIELD SAMPLING PLAN ......................................................... 3-1 3.1 Residential Soil Sampling.................................................................................. 3-2 3.2 Bank Sediment Sampling.................................................................................. 3-9 3.3 Surface Sediment and Deep Sediment Samples.............................................. 3-9 3.4 Surface Water Sampling ................................................................................. 3-15 3.5 Reference Area Sampling............................................................................... 3-18 3.6 Sample Location Survey.................................................................................. 3-18
4.0 FINDINGS OF THE INVESTIGATION.......................................................................... 4-1 4.1 Site Conditions .................................................................................................. 4-1
4.1.1 Woonasquatucket River........................................................................ 4-1 4.2 Sample Analysis................................................................................................ 4-4 4.3 Contaminant Distribution................................................................................... 4-5
4.3.1 Background Concentrations.................................................................. 4-6 4.3.2 Residential Soil Contaminant Distribution.............................................. 4-7 4.3.3 Bank Sediment Contaminant Distribution.............................................. 4-8 4.3.4 Aquatic (Flooded) and Floodplain Sediment
Contaminant Distribution.....................................................................4-12 4.3.5 Surface Water Contaminant Distribution............................................. 4-14 4.3.6 Data Summary ....................................................................................4-16
5.0 SUMMARY ...................................................................................................................5-1
REFERENCES
RI00518F I Centredale Manor, Rl
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TABLE OF CONTENTS (cont'd) FINAL TECHNICAL MEMORANDUM
WOONASQUATUCKET RIVER SEDIMENT SAMPLING CENTREDALE MANOR SITE
NORTH PROVIDENCE, RHODE ISLAND
TABLES
NUMBER PAGE
3-1 Residential Soil Sampling Summary ............................................................................. 3-3 3-2 Surface Water and Sediment Sampling Summary...................................................... 3-10 3-3 Free Water Determination........................................................................................... 3-16 4-1 Background Sample Data Summary............................................................................. 4-9 4-2 Residential Sample Data Summary............................................................................. 4-10 4-3 Bank Sample Data Summary...................................................................................... 4-11 4-4 Aquatic Sediment Data Summary............................................................................... 4-13 4-5 Floodplain Sediment Data Summary........................................................................... 4-15 4-6 Surface Water Results................................................................................................ 4-17
FIGURES
NUMBER PAGE
1-1 Site Locus ................................................................................................................... 1-2 2-1 Study Area ...................................................................................................................2-3 3-1 Sediment Soil Sample Stations ........................................................................Map Pocket 3-2 Surface Water Sample Status..........................................................................Map Pocket 4-1 Analytical Results, Allendale Areas ..................................................................Map Pocket 4-2 Analytical Results, Lymansville Areas..............................................................Map Pocket
APPENDICES
APPENDIX A Residential Soil Results APPENDIX B Bank Sediment Results APPENDIX C Aquatic and Floodplain Sediment Results APPENDIX D Surface Water Results APPENDIX E Sample Collection Records APPENDIX F Woonasquatucket River Flow Data
RI00518F II Centredale Manor, Rl
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APPENDIX A
RESIDENTIAL SOIL RESULTS
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