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& MILLER, INC. Environmental Services Ground Water Engineering Hydrocarbon Remediaiiim Eilucarmn December 20, 1993 Caroline Kwan Project Manager U.S. Environmental Protection Agency - Region n 26 Federal Plaza, Room 737 New York, New York 10278 Re: Phase n Remedial Investigation Work Plan, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. Dear Ms. Kwan: On behalf of Ana Gloria Ramos, Designated Coordinator of the Tutu Environmental Investigation Committee (TEIC), Geraghty & Miller, Inc. is submitting three copies of the two- volume Phase II Remedial Investigation (RI) Work Plan Tutu Wells Site for your review. We understand you will forward one of these copies to CDM Federal Programs. This wor': plan has been reviewed by the members of the newly formed Tutu Potentially Responsible Party (PRP) Committee prior to submittal to the U.S. Environmental Protection Agency (USEPA). Additional copies of this work plan have been shipped directly to the U.S. Virgin Islands Department of Planning and Natural Resources (DPNR) and USEPA personnel in Puerto Rico as indicated in the copy list below. Members of the Tutu PRP Committee will also be receiving copies of this work plan. TUT 005 O23O 201 West Passaic Street, 3rd Floor • Rochelle Park, New Jersey 07662'(201) 909-0700* FAX (201) 909-0567/0568 *64546* 64546 GERAGHTY & MILLER. INC. 2 We hope this Phase n RI Work Plan addresses the USEPA's concerns. If you have any questions, please contact Ana Gloria Ramos at (809) 749-8943. Sincerely, GERAGHTY & MILLER, INC. Marie F. McDonnell Project Scientist ( Thomas V. Danahy SeniorScientist/Proiect Manager Daniel A. Nachman Vice President/Project Officer Enclosures c: Andrew Prashak, Esq. - USEPA (PR office) Jose Font - USEPA (PR office) Leonard Reed - DPNR (2 copies) Clifford Crooke - DPNR • Ana Gloria Ramos - Tutu Environmental Investigation Committee Paul Ryan - Texaco, Inc. DAN:nr PR0013."'-WPl/122093.llr TUT OO5 O231 PHASE n REMEDIAL INVESTIGATION WORK PLAN TUTU WELLS SITE ST. THOMAS, U.S. VIRGIN ISLANDS VOLUME 2 OF 2 December 1993 Prepared for Tutu Environmental Investigation Committee Prepared by Geraghty & Miller, Inc. 201 West Passaic Street Rochelle Park, New Jersey 07662 (201) 909-0700 GERAGHTY & MILLER. INC. TUT CONTENTS Page 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2.0 BACKGROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1 3.0 DATA REVIEW PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.1 TASK 1: DATA COMPILATION AND BIBLIOGRAPHY PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 3.2 TASK 2: DATABASE DESIGN AND DATA INPUT . . . . . . . . . . . . . 3-3 3.3 TASK 3: EXTENSION OF AREA BASE MAP . . . . . . . . . . . . . . . . 3-4 3.4 TASK 4: WELL INVENTORY REVISION . . . . . . . . . . . . . . . . . . . 3-4 3.5 TASK 5: GEOLOGIC LOG COMPILATION AND CROSS SECTION PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5 3.6 TASK 6: PUMPING TEST DATA EVALUATION . . . . . . . . . . . . . . 3-5 3.7 TASK 7: DATA ANALYSIS AND DEVELOPMENT OF SCOPE OF WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5 3.8 TASK 8: PHASE H RI WORK PLAN PREPARATION . . . . . . . . . . . 3-6 4.0 DATA ASSESSMENT AND DATA GAPS . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4.1 HISTORICAL OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4.1.1 VfflA (Former Tropical Motors) . . . . . . . . . . . . . . . . . . . . . 4-2 4.1.2 Curriculum Center (Former LAGA Facility) . . . . . . . . . . . . . . 4-3 4.1.3 Ramsay Motor Company . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 4.1.4 Antilles Auto Parts (Former Gassett Auto Parts and Former Consolidated Auto Parts) . . . . . . . . . . . . . . . . . . . . 4-4 4.1.5 Tutu Texaco Service Station . . . . . . . . . . . . . . . . . . . . . . . . 4-5 4.1.6 Old Tutu Wastewater Treatment Plant . . . . . . . . . . . . . . . . . . 4-6 4.1.7 Fellowship Church (Former Storage Facilities, Inc. and Former West Indies Enterprises, Inc.) . . . . . . . . . . . . . . . 4-7 4.1.8 Four Winds Plaza . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 4.1.9 Tillett, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8 4.1.10 Western Auto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9 4.1.11 Overseas Steel Fabrication . . . . . . . . . . . . . . . . . . . . . . . . 4-10 4.1.12 Tracy Dodd Used Car Lot . . . . . . . . . . . . . . . . . . . . . . . . 4-10 4.1.13 Tutu Esso Service Station . . . . . . . . . . . . . . . . . . . . . . . . . 4-10 4.1.14 Classic Printers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11 4.1.15 A Property of Unknown Ownership (Southeast of Classic Printers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11 4.1.16 Archies Welding & Auto Body Repair . . . . . . . . . . . . . . . . . 4-12 4.1.17 O'Henry Cleaners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12 TUT O05 0233 GERAGHTY & MILLER, INC. Q 11 CONTENTS (Continued) Page 4.1.18 Rodriguez Esso Service Station (Former Shell Oil) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13 4.1.19 Kentucky Fried Chicken (Former Home Petroleum, Inc. and Former Caribbean Gas Corporation) . . . . . . . . . . . . . . 4-13 4.1.20 Former Fort Mylner Coin-Op Laundry and Drycleaners, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14 4.2 CONCEPTUAL HYDROGEOLOGIC MODEL . . . . . . . . . . . . . . . . 4-14 4.2.1 Geology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14 4.2.2 Hydrogeology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15 4.2.3 Contaminant Movement . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17 4.2.4 Aquifer Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18 4.3 HYDROGEOLOGIC DATA GAPS . . . . . . . . . . . . . . . . . . . . . . . 4-21 4.4 CHEMISTRY DATA ASSESSMENT . . . . . . . . . . . . . . . . . . . . . . 4-22 4.4.1 Soil Sampling Results . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 4.4.1.1 VIHA (Former Tropical Motors) Soil Sampling Results . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 4.4.1.2 Curriculum Center (Former LAGA Facility) Soil Sampling Results . . . . . . . . . . . . 4-23 4.4.1.3 Ramsay Motors Soil Sampling Results . . . . . . . . 4-26 4.4.1.4 Antilles Auto Parts (Former Gassett Auto Parts and Former Consolidated Auto Parts) Soil Sampling Results . . . . . . . . . . . . . . . . . . . . 4-28 4.4.1.5 Texaco Service Station Soil Sampling Results . . . . 4-29 4.4.1.6 Four Winds Plaza Soil Sampling Results . . . . . . . 4-31 4.4.1.7 Tillett, Inc. Soil Sampling Results . . . . . . . . . . . 4-32 4.4.1.8 Western Auto Soil Sampling Results . . . . . . . . . 4-34 4.4.1.9 Esso Service Station Soil Sampling Results . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35 4.4.1.10 O'Henry Cleaners Soil Sampling Results . . . . . . . 4-37 4.4.1.11 Rodriguez Esso Service Station (Former Shell Oil) Soil Sampling Results . . . . . . . . . . . . . . . . . 4-39 4.4.2 Results of Gas Chromatograph Field Analysis of Soil Samples . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39 4.4.3 Groundwater Sampling Results . . . . . . . . . . . . . . . . . . . . . . 4-40 TUT 005 O234 GERAGHTY & MILLER. INC. Ill CONTENTS (Continued) Page 4.4.3.1 Chlorinated Organic Compounds . . . . . . . . . . . . 4-41 4.4.3.2 Petroleum Hydrocarbons . . . . . . . . . . . . . . . . 4-43 4.5 CHEMISTRY DATA GAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44 4.5.1 Source-Related Chemistry Data Gaps . . . . . . . . . . . . . . . . . . 4-44 4.5.2 Groundwater Chemistry Data Gaps . . . . . . . . . . . . . . . . . . . 4-45 5.0 SUMMARY OF DATA GAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1 6.0 DATA QUALITY OBJECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 7.0 PROPOSED PHASE H REMEDIAL INVESTIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1 7.1 SOURCE INVESTIGATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 7.1.1 Task 1: Site Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 7.1.2 Site Inspection Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4 7.1.3 Task 3: Soil-Gas Surveys . . . . . . . . . . . . . . . . . . . . . . . . . .7-5 7.1.4 Soil-Gas Survey Report . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6 7.2 SITE-WIDE HYDROGEOLOGY AND GROUNDWATER QUALITY INVESTIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6 7.2.1 Task 5: Monitoring Well and Supply Well Surveying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7 7.2.2 Task 6: Supply Well Inspection . . . . . . . . . . . . . . . . . . . . . . 7-7 7.2.3 Task 7: Pumpage Impact Monitoring . . . . . . . . . . . . . . . . . . . 7-8 7.2.4 Task 8: Monitoring Well Installation and Storm Sewer Investigation . . . . . . . . . . . . . . . . . . . . . . . . 7-9 7.2.5 Task 9: Water-Level Measurements . . . . . . . . . . . . . . . . . . . 7-13 7.2.6 Task 10: Comprehensive Groundwater Sampling Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13 7.3 QUALITY ASSURANCE/QUALITY CONTROL AND REPORTING . 7-14 7.3.1 Quality Assurance/Quality Control . . . . . . . . . . . . . . . . . . . 7-14 7.3.2 Monthly Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15 7.3.3 Draft Remedial Investigation Report . . . . . . . . . . . . . . . . . . 7-15 TUT OO5 O235 GERAGHTY & MILLER. INC. IV CONTENTS (Continued) Page 7.3.4 Final Remedial Investigation Report . . . . . . . . . . . . . . . . . . 7-15 7.3.5 Analysis of Remedial Alternatives . . . . . . . . . . . . . . . . . . . . 7-15 7.3.6 Draft Feasibility Study Report . . . . . . . . . . . . . . . . . . . . . . 7-16 8.0 BIBLIOGRAPHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1 TABT.KS 3-1. Summary of Recent Data Received from the Members of the PRP Technical Committee, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-1. Summary of Work Performed to Date at the Various Potential Source Facilities in the Tutu Area, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-2. Concentrations of Volatile Organic Compounds in an Oil Sample Collected on August 17, 1987 at the VfflA Building, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-3. Summary of Preliminary Assessment Report for Curriculum Center (Former LAGA Facility), Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-4. Summary of Analytical Results for Samples Collected June 5 to 10, 1989 at the Curriculum Center (Former LAGA Facility), Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-5. Concentrations of Volatile Organic Compounds in an Oil Sample Collected August 17, 1987 at Ramsay Motors, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-6. Concentrations of Volatile Organic Compounds for Soil and Water Samples Collected on September 8, 1988 at Ramsay Motors, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-7. Summary of Preliminary Assessment Report of Ramsay Motors, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-8. Concentrations of Volatile Organic Compounds in an Oil Sample Collected June 8, 1989 at Ramsay Motors Center, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. TUT 005 O236 GERAGHTY & MILLER. INC. TABLES (Continued) 4-9. Summary of Analytical Results for a Soil Sample Collected June 5 to 10,1989 at Ramsay Motors, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-10. Concentrations of Volatile Organic Compounds in Water Samples Collected August 17, 1987 at Gassett (Former Consolidated Auto Parts), Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-11. Concentrations of Volatile Organic Compounds in Soil and Surface-Water Samples Collected on September 12, 1988 at Gassett (Former Consolidated Auto Parts), Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-12. Summary of Preliminary Assessment Reports for Gassett, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-13. Concentrations of Volatile Organic Compounds in Oil Samples Collected on June 8,1989 at Gassett (Former Consolidated Auto Parts), Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-14. Concentrations of Volatile Organic Compounds in Oil and Water Samples Collected August 17, 1987 at the Texaco Service Station, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-IS. Concentrations of Volatile Organic Compounds in Soil, Oil, and Water Samples Collected from September 12 to 15, 1988 at the Texaco Service Station, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-16. Summary of Preliminary Assessment Report for Texaco Service Station, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-17. Summary of Tank Excavation Procedures September 7 to September 16, 1988 at Texaco Service Station, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-18. Concentrations of Volatile Organic Compounds in Split Soil Samples Collected from September 12 to 15, 1988 During Texaco Tank Excavation, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-19. Concentrations of Volatile Organic Compounds in Water Samples Collected by Camp, Dresser & McKee Corporation from September 12 to 15, 1988 During Texaco Service Station Tank Excavation, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. TUT 005 0237 GERAGHTY & MILLER. INC. VI TARTJES (Continued) 4-20. Concentrations of Volatile Organic Compounds in QA/QC Samples Collected from September 12 to IS, 1988 During Texaco Service Station Tank Excavation, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-21. Concentrations of Volatile Organic Compounds in Oil Samples Collected on June 8, 1989 at the Texaco Service Station, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-22. Summary of Analytical Results for Split Soil Samples Collected from June 5 to 10, 1989 from Texaco Soil Pile, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-23. Concentrations of Volatile Organic Compounds and Tentatively Identified Compounds in Soil Samples Collected on September 13, 1988 at Tillett Gardens, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-24. Concentrations of Volatile Organic Compounds in Oil Samples Collected on August 17, 1987 at Esso Service Station, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-25. Concentrations of Volatile Organic Compounds in Oil Samples Collected on September 12, 1988 at Esso Service Station, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-26. Summary of Preliminary Assessment Report for Esso Service Station, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-27. Concentrations of Volatile Organic Compounds and Tentatively Identified Compounds in Oil Samples Collected on June 8, 1989 at Esso Service Station, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-28. Concentrations of Volatile Organic Compounds in Soil Samples Collected by Soil Tech in June 1989 from the Esso Tank Excavation Pit Area, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-29. Concentrations of Base Neutral and Acid Extractable Organic Compounds in Soil Samples Collected by Soil Tech in June 1989 from the Esso Tank Excavation Pit Area, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-30. Concentrations of Total Petroleum Hydrocarbons in Soil Samples Collected in June 1989 from the Esso Tank Excavation Pit Area, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-31. Concentrations of Metals in Soil Samples Collected from June 5 to 10, 1989 from the Esso Tank Excavation Pit Area, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. TUT 005 O238 GERAGHTY & MILLER. INC. vu TABLES (Continued) 4-32. Concentrations of Volatile Organic Compounds in Soil Samples Collected from June 5 to 10,1989 from the Esso Tank Excavation Soil Pile, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-33. Concentrations of Base Neutral and Acid Extractable Compounds in Soil Samples Collected from June 5 to 10, 1989 from the Esso Tank Excavation Soil Pile, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-34. Concentrations of Total Petroleum Hydrocarbons in Soil Samples Collected from June 5 to 10, 1989 from the Esso Tank Excavation Soil Pile, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-35. Concentrations of Metals in Soil Samples Collected from June 5 to 10, 1989 from the Esso Tank Excavation Soil Pile, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-36. Results of Ignitability Analyses in Soil Samples Collected from June 5 to 10, 1989 from the Esso Tank Excavation Soil Pile, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-37. Concentrations of Volatile Organic Compounds in Water Samples Collected from June 5 to 10, 1989 During Esso Tank Excavation, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-38. Concentrations of Base Neutral and Acid Extractable Compounds in Water Samples Collected from June S to 10, 1989 During Esso Tank Excavation, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-39. Concentrations of Petroleum Hydrocarbons in Water Samples Collected from June 5 to 10, 1989 During Esso Tank Excavation, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-40. Results of Ignitability Analyses in Water Samples Collected from June 5 to 10, 1989 During Esso Tank Excavation, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-41. Summary of Analytical Results for Split Soil Samples Collected from June 5 to 10, 1989 from Esso Tank Excavation Pit, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-42. Summary of Analytical Results for Split Soil Samples Collected June 5 to 10, 1989 from Esso Soil Pile, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. TUT 005 0239 GERAGHTY & MILLER, INC. Vlll TABLES (Continued) 4-43. Concentrations of Volatile Organic Compounds in Soil Samples Collected on September 8, 1988 and June 5, 1989 at O'Henry Cleaners, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-44. Summary of Preliminary Assessment Report for O'Henry Cleaners, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-45. Concentration of Benzene, Toluene, Ethylbenzene, and Xylenes in Soil Samples Collected from the Rodriguez Esso Service Station from May 22 to 24, 1990, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-46. Concentrations of Benzene, Toluene, Ethylbenzene, and Xylenes in Water Samples Collected from the Rodriguez Esso Service Station on July 9, 1990, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-47. Supply Well Construction Details and Estimated Pumping Rates, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-48. Monitoring Well Construction Details, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-49. Geraghty & Miller and Alternate Well Designations, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-50. Summary of Aquifer Testing Conducted at the Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-51. Field Gas Chromatograph-Detected Results for Soil Samples Collected by Geraghty & Miller, Inc. from June through August 1992, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 6-1. Appropriate Analytical Levels for Analyses of Samples Collected During Phase n Remedial Investigation of the Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 7-1. Summary of Criteria for Recommending Further Source Investigation Tasks at Potential Source Facilities, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 7-2. Supply Wells to be Included in the Proposed Comprehensive Groundwater Sampling Event, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. TUT OO5 O24O GERAGHTY # MILLER, INC. IX FIGURES 2-1. Site Location, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 2-2. Base Map, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 2-3. Bedrock Surficial Map with the Locations of Monitoring Wells, Supply Wells, and Line of Cross Section, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-1. Locations of Potential Source Facilities, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-2. Curriculum Center (Former LAG A Facility) Soil and Ground water Analytical Results for Samples Collected by Arthur D. Little, Inc. in October 1993, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-3. Ramsay Motor Company Soil and Groundwater Analytical Results for Samples Collected by Cooper Environmental, Inc. in April and July 1993, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-4. Site Plan of Tutu Texaco Service Station, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-5. Western Auto Facility Soil Analytical Results for Samples Collected in November and December 1992, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-6. Tutu Esso Service Station Soil Analytical Results for Samples Collected by Soil Tech Corporation in December 1989, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-7. O'Henry Cleaners Facility Soil Analytical Results for Samples Collected in September 1988, June 1989, June 1990, and August 1992, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-8. O'Henry Cleaners Facility Groundwater Analytical Results for Samples Collected in August, September, and October 1990 and February 1991, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-9. Hydrogeologic Cross Section A-A', Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-10. Fracture Lineaments and Distribution of Transmissivity Values, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. TUT 005 0241 GERAGHTY & MILLER, INC. ffCTTRFS (Continued) 4-11. Petroleum-Related Compounds in Groundwater, February 1992 to March 1993, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 4-12. Chlorinated Organic Compounds in Groundwater, February 1992 to March 1993, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 7-1. Proposed Phase n Remedial Investigation Monitoring Well, Site Inspection, and Soil-Gas Survey Locations, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. 7-2. Phase n Remedial Investigation Implementation Schedule, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. APPENDIX A. Soil-Gas Survey Procedures, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. TUT OO5 0242 GERAGHTY & MILLER. INC. I DWG DATE: 12-17-93 I PRJCT NO.: PR00801 I FILE: I DRAWING: NDN-CAD I CHECKED: I APPROVED: I DRAFTER: V. CARUNCHO OS'00' 18-25' 05'06' 04'56' 04'50' I N o TUTU WELLS SITE GUEAT BAY 9 ' Qrqnl SI. Jumoa I GERAGHTY & MILLER, INC. Environmental Services SITE LOCATION TUTU WELLS SITE ST. THOMAS, U.S. VIRGIN ISLANDS FIGURE 2-1 EPA REGION II SCANNING TRACKING SHEET DOC ID # 64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 2-2 BASE MAP THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 EPA REGION II SCANNING TRACKING SHEET DOC ID # 64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 2-3 BEDROCK SURFICIAL MAP WITH LOCATION OF MONITORING WELLS, SUPPLY WELLS, AND LINE OF CROSS SECTION THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 -···--·-··--· ··--~--·----·---·---- ------·-'--·----'·--· -~---; ...... ·• --- -·· . HB-8 CHLORINATED COMPOUNDS• (ug/kg) Met.n)4ene chlorld9 2 J Acetone 3 BJ BTEX AND BNA COMPOUNDSn (u2/kg) FluoraOthene 180 J P}'rtne 180 J Benzo (o) onthrocene 120 J Ch rysene. 150 J bis (2-Eth)'thex)'I) phtholate 84 J Benzo (b) fluoronthene 200 J Benzo (k) fluoranthene 70 J Benzo (o) pyrene 110 J lnd«lo (1,2,3-cd) p)l"ene 58 J Benzo (9,h,i) perylene n J 24 ,,,.~-.." / ,,.---.,..( f ' /- ~~ • / ----·"., !, ....... . '""~- - - ) ''\ • · ~'" • '¢- POLE POLE \ UNPAVED P/A '\ • i ! I / ''I HB-7 (1.25') CH LORINA TED COMPOUNDS• (u2~g) Meth)4cn9 chloride 8 BOJ Acetone 370 B!) 2-Butonone 58 Bu 1,1,1 Trichloroethane 4 BDJ tert-But)t moth~ ether 29 BTEX AND BNA COMPOUNDS" (ug/kg) Pentochlorophenol 51 J TOTAL PETROLEUM HYDROCARBONS (m2l'.i'.2) 67 SB-· 10 (SOIL) CHLORINATED COMPOUNDS• (ug/kg) ND ~ BTEX AND BNA COM POU NOS" ( ug/kg) But)'i benz}'I phtt1olate 1,000 bis (2-Ethylhe•yl) phthalate 130 TOTAL PETROLEUM HYDROCARBONS (mg/kg) 230 RAMSAY I I I I /;·' /+-- ~~~-­ ?' I ( POLE '"--... "', IT--~· - HB-6 (1.5') CHLORINATED C0'-4POUNDS• (ug/kg) Methylene chloride 3 J Acetone 75 B 2-Butanone 11 BJ BTEX AND BNA COMPOUNDS•• (ug(kg) Chrysene 230 J Phenanthrene 320 J Anthrocene 72 J Fluoranthene 390 J Pyrene 430 Benzo (a) onthracene 250 J bi1 (2-Eth)'lhe•)'i) phthalote 51 J 6•nio (b) flyoronth•n• ~JO J Benzo (k) fluoranthene ~7 J Benzo (a) p~ene 200 J lndono (1,2.3-cd) pyrene 120 J Benzo (9,h,i} per)iene 130 J TOTAL PETRDUUM HYDROCARBONS (mg/kg) 170 /---..... \ )...., • 1 .. ,\ ' ,,, ~ , \ . . ...-~~~~~~~~~~~~~~ ~. ,--- / 'V HB-6 RAMSAY MOTOR COM PAN HB-10 CHLORINATED COMPOUNDS• (ug/kg) Meth)'iene chloride 3 J Acetone 7 BJ BTEX AND BNA COMPOUNDS•• (ug/kg) Di-n-butyl phtholote - - 97 J But)i benzyl phtholote 970 bis (2-Eth)'ihex)i) phthalote 190 J benzo (g,h,i) per}'lene 340 J TOTAL PETROLEUM HYDROCARBONS (mg/kg) 73 HB-3 (WATER) CHLORINATED COMPOUNDS• (ug/L) Acetone 250 BJ 2-Butanone 74 J lert-Butyl methyl ether 6,200 BTEX AND BNA COMPOUNDS" (ug/L) Benzene Ethylbenzene Xylene (total) Naphthalene 2-Methylnophtholene Fluorene Phenonthrene Py~ne blo (2 • Eth~o,.~) phthalat1 benzo (g,h,l) pery{ene: n-Prop:rlbenzene 360 J 150 J 230 J 2,900 3,100 530 J 790 J 41 0 J 1,100 J 220 J 86 TOTAL PETROLEUM HYDROCARBONS (mg/L) 1,900 HB-2 (4.5') CHLORINATED COMPOUNDS• (uo/kg) Meth:rlene chloride 11 J 2-Butonone 39 BJ Acfltone 500 B tert-Butyl methyl ether 880 BTEX AND BNA COMPOUNDS*" (ug/kg) Ben?:ene 17 J Eth;tbenzene 290 Xylene (total) 7 J bis (2-Ethylhex}'t) phtholote 82 J Fluorene 75 J Naphthalene 110 J 2-Methylnophlholene 140 J n-Prop'.'llbenzene 480 TOTAL PETROLEUM HYDROCARBONS (mg/kg) 670 0~c~, ,- • • / --~~·~ .. ... SB- 5 (SOIL) CHLORINA TEO COMPOUNDS• (ug/kg) ND BTEX AND BNA COMPOUNDS•• (ug/kg) Butyt benzyl phtholote 680 bis (2-Ethylhe•yt) phthalote 100 HB-3 (3.0') CHLORINATED COMPOUNDS• ( ug/kg) Acetone 1,000 BJ tert-But}'i meth)4 ether 410 BTEX AND BNA COMPOUNDS*" (u9/kg) 1---t 2-Methytnaphtholene 47 J bis (2-Ethythex;t) phtholote 49 J n ~ Prop~oonzono 210 TOTAL PETROLEUM HYDROCARBONS (m2/kg) ND HB-3 HB-2 t---1----.: .. _,_ 'V 'V UNDERGROUND STORAGE TANK l ~--'-/ HB-1 'V HB-4'9 HB-5 / HB-3 (OIL) CHLORINATED CCMPOUNDS• (ug/kg) Acetone 480,000 BO BTEX AND BNA. COUPOUNDS•• (ug/k~!L Benzene 290,')00 D Ethylbenzene 1,700,000 Xylene (totol) 2,000,C>OO D 2-Butonone 250,1)00 D n-Propylbenzene 89,900 Nephthalene 680.000 2-Meth}'lnophtholene 810,000 · Fluorene 110,000 Phenonthrene 180,000 Anthrocene 29,000 Fluroronthene 41,000 Pyrene 89,000 Benzo (o) onthracene 45,000 bl• (Z~ Eth~hox~) ph\holot• 2eo,ooo Chr~9ne 46.000 01-n-octyl phtholote 28,000 Senzo (b) fluoronthene Ji0,000 Benzo (o) p)'rene 28,000 Benzo (g,h,I) perylene 33,000 TOTAL PETROLEUM HYDROCARBONS (mg/kg) 1,200,000 HB- 5 (2.3') CHLORINATED COMPOUNDS• (ug/kg) Acetone 800 BJ 2-Butanone 1,000 .J tert-But}'I methyl ether 490 BTEX AND BNA COMPOUNDS.,• (u9/k() Nophtholene 61 O - 2-Meth)'lnophlhalene 920 Phenonthrene 470 DJ bis (2-Elh)'lhexyl) phtholote 470 o.; Ethylbenzene 190 J n-Prop~benzene 380 Fluorene 170 .J Fluoronthene 51 J Pyrene 210 J Chrysene 100 J Benzo (b) fluoranthene 49 J Benzo (g,h,I) per)'lene 67 J TOTAL PETROLEUM HYDROCARBONS (m9/k2) 1,800 HB-4 (2.5') CHLORINATED COMPOUNDS• (ug/kg) Acetone 1,500 BD 2-Butonone 1,900 0 Meth)4ene chloride 10 J terl-Butyl meth)4 ether 250 BTEX AND BNA COMPOUNDS" ( u9/k9) 2-Meth}'lnophthOlene 1 JO J Fluorene 93 J Phenonthrene 160 J Chrysene 43 J bis (2-Ethylhex)'i) phtholote 51 J n-Prop)'lbenzene 9.10 .RAMSAY+ HB-8 'V B·-2 0 atB HB-7 'V TOTAL PETROLEUM HYDROCARBONS (m2/kg) 81 TOTAL PETROLEUM HYDROCARBONS (mg/kg) 200 SB-10 0 - -------- B-2 0sB 5 ~ \ •MH BTEX 8-2 (0-2.0') .ct:iLQBINAIFQ COMfO\JNQfi• Cqg /kgl BNA Methylene chloride 17 J Acetone 14 .BJ:EX.._ANQ BNA COMfOl!NOS** (qg /kg) MTBE ·; ··~ ' '; LEGEND PROPOSED SHALLOW MONITORING WELL LOCATION EXISTING SUPPLY WELL LOCATION HAND AUGER LOCATION SOIL BORING LOCATION CATCH BASIN MANHOLE BENZENE, TOLUENE, ETHYLBENZENE, AND XYL£NES BASE NEUTRAL/ACID EXTRACTABLE COMPOUNDS TERT-BUTYL METHYL ETHER /0 0 / SB-13 MH SB-9 0 'V HB-8 SB-7 "' \ Benzo(o)pyrene 270 J ) ~enzo(g,h,j)pcr}'lene 290 J j SB-12 (SOIL) CHLORINATED COMPOUNDS• (u2/k9) NO BTEX AND BNA COMPOUNDS" (ug/kg) Butyt benz;i phthalate bis (2-Ethylhexyl) phthclote Benzo (b) fluoronttiene 1,200 91 48 TOTAL PETROLEUM HYDROCARBONS (mg/kg) 150 B-3 (2.0-4.0') CHLQBINAJEQ COMPOLJNQS• '""/kg) Methylene chloride 26 J Acetone 6 J Tetrochloroethene 6 J 81£X ANQ RNA COMpOllNDS•• (qg /!sgl ND TOTAL PETROLEUM HYDROCARBONS (mg/kg) ND SB-11 (SOIL) CHLORINATED COMPOUNDS• (ug&g) NO \ \ \ BTEX A.ND BNA COMPOUNDS•• (ug/kg) Fluoronthene 43 Pyrene 61 But)'( benzyl phthalote 140 bis (2-Eth}'lhexyl) phtholote 70 Di-11-0ct)t Phtholote 49 Benzo {b) fluoronthene 87 Benzo ( g,h,I) per}'lene 87 \ \ TOTAL PETROLEUM HYDROCARBONS (mg/kg) 230 I I PAVED PIA SB-9 (SOIL) CHLORINATED COMPOUNDS• (ug/kg) Methytene chloride 2.3 Acetone 160 ANTILLES AUTO PARTS BTEX AND BNA COMPOUNDS•• (ug(kg) But)'! benzyt phtholote 110 bis (2-Eth}'lhex}'I) phtholote 48 TOTAL PETROLEUM HYDROCARBONS Jmg/kg) 35 SB- 8 0 0 SB-4 'j / Pyrene 220 J ~=1 {SOIL) ~ , ,, ;' TOTAL PETROl..EUM HYDROCARBONS (mg/kg) CHLORINATED COMPOUNDS• (ug/kg) i ' 110 "·c SB-1 '<.) ND 0 SB-6 180 200 110 120 170 340 SB-3 (0--------~' BTEX AND BNA COMPOUNDS•* (u ~ /kg) --===-"'\( ~ -.. rs2>L . ~---_ _J ~r,::n. -~'-. \ \ 1 • ; b!s (2-Eth~hex)'I) phthol1Jte \ ' 1 Di-n-oct)i phtholote SB-4 (SOIL) CHLORINATED COMPOUNDS. (ug/kg) NO BTEX AND BNA COMPOUNDS" (ug(kg) But)'1 benzyl phthalate 44 TOTAL PETROLEUM HYDROCARBONS (mg/kg) 27 '""""~:,:,..,_,_ -= ,,._ Benzo (b) fluoronthene S8- 3 (SOIL) Benzo (g,h,I) perylene 1.200 I Benzo (o) pyene -.CHLORINATED COMPo;J;.t!)S1~ (ug/kg) ND TOTAL PETROLEUM HYDROCARBONS (mg/kg) 420 BTEX. AND BNA COMPOUNDS•• (ug/kg) Pyrene 780 Chrysene 790 bis (2-Eth)'lhex)'t) phthalate 660 Di-n-oct)'I phtholote 450 Benzo (t•) fluoronthene 1,100 Benzo (o} pyrer1e 420 Benzo (g,h,i) perylene .3,400 TOTAL PETROLEUM HYDROCARBONS (mg/kg) 2,000 0 SCALE 30 60 * ** (0- 2.0') B j .0 mg/kg ug/kg ug/ L INCLUDES NON-CHLORINATED, NON-BTEX VOLATILE ORGANIC COMPOUNDS INCLUDES MOSTLY PETROLEUM-REL.A \'ED COMPOUNDS SOME 8NA COMPOUNDS MAY B'.: LABORATORY ART!F ACTS NOT DETECJED DEr TH OF SAMPLE INW.RVAL iN FEET BELOW LA 1~ D SURFACE ANAL YTE ALSO FOUND IN Fi ELD BLANK R~SU LT WAS D~TECTED BELOW Tlit: REPORT1NG LiMi1 Al.C'/OR IS .'IN ESTIMATED ' '~ONCENTRA Ti ON ANALYTE IDENTIFIED AT A SECONDARY DILUTION MILLIGRAMS PER KILOGRAM MICROGRAMS PER KILOGRAM MILl.ICRAMS ·PER LITER MICROGRAMS PER LITER I I I i t L,_, __ P_/_A __ P_A_R-Kl_N_G_A_R_E_A ________________ _JJ Nrrcc- U , c ..:> -- ~,. -- 1. S01L BORINGS 8-2 AND 3 -3 DRILLED 'N AU8UST 1992 BY GEl"iAGHTY & MIU_ER, 2. SOil BORI NGS SB- 1 THROUGH SB-13 DRILL <"'1 IN JUNE 1993 BY COOPER ENVIRONMENTAL, lNC .. 3. HAND i\.UGER BORING SAMPLES HB-1 THROUGH 1-i8-1 O I ! ·. I ! i ~ I i ! 11 I I FIGURE ~~-----------~~~~~~~~~~-----~~~~~~~~~~~~~~~-~----~~~~-~----~--~--~~~~~~~~-~~~---~--~-~~~~C~O~ECTED IN APRIL 1993 BY COOPER EN~RONMENM~ iNC .. ' DRAWING CONFIDENTIAL: THIS DRA'MNG SCALE VERIFICATION REV. NO. DATE DESCRIPTION BY APPR. PRO.Iler No., ?Roo1;.c1s FlLE ;;o, n;-275 -~---------------~ --T""------! j~ GERAGHTY AND ALL INFORMATION CONTAINED THEREON 1s THIS BAR REPRESENTS i---r-- --t-----------'------!--- 4--4--1~o~RA'!::'M~110;:_: __ _!TU!:;:-E'7~5--.J!PLOT 5'ZE' 1•JO RAMSAY MOTOR COMPANY 4-3 SOURCES: COOPER ENVIRONMENTAL, INC. (1993). GERAGHTY & MILLER, INC. ( 1993a) A., & MILLER, INC. ~N~,~~~~N~EM:~NA:~N~~~~~~ g~ ;~~~~~~ g~~l~HD~W~G~ r----t-- -+---------- ---!-----1-----1----i-:DR:::-A:-::rr=r.o=-a=v,·-D. -LOR_EN_Z ___ DATE-:-;,-_- 1 .,_-~,--- SOIL AND GROUNDWATER ANALYTICAL RESUL'fS E . t l S . SIONAL SER"1CE. THIS INFORMATION SHALL NOT CHECKED BY: " · eENo.,rz o~rEl:;::;t::i3-- · . FOR SAMf;LES COLLECTED BY COOPER nv~ronm,en a erv~ces ~GulJs:~o~LE~~L~N~R ~~1~RA~1~~~~NT;EENT usE ro VERIFY FIGURE ·--r------- ·---- -----+-----+----+---1'-""'~P,::Ro::;""'::::...::"c.:Y:_T~. ~oAN~•~HC!._Y. p•_TE,_1.2.:1_5-_•- 3 -- ENVIRONMENT AL, INC. IN APRIL AND JULY 1993 OF GERAGHTY & MILLER, INC. REPRODUCTION SCALE TUTU WELLS SITE ST. THOMAS, U.S. VIRGIN ISLANDS EPA REGION II SCANNING TRACKING SHEET DOC ID # 64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 4-3 RAMSAY MOTOR COMPANY SOIL AND GROUNDWATER ANALYTICAL RESULTS FOR SAMPLES COLLECTED BY COOPER ENVIRONMENTAL, INC. IN APRIL AND JULY 1993 THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 CONCRETE CULVERT FOUR WINDS PLAZA PARKING LOT , POWER LINE POLE / /// / / / / / / / / / / ,/ / / / / w f- :::> 0 0::: LIGHT POST TEXACO SIGN m er: ::::> 0 VENT PIPES (VERTICAL) A., GERAGHTY Air & MILLER, INC. .. Environmental Services SUPPORT CABLE J_ ANTILLES AUTO PARTS (FORMERLY GASSl~TT AUTO PARTS) POWER LINE POLE 8-4 0 (-· SOIL CONCRETE oM.H. "---CONCRETE RAMP '\ "C SEPTIC TANI< \ \ L r \_ , ~--_,.___,___, \ I - -L - .J-1 DRUM \ "- / I STORAGE \ ---- M.H. CATCH BASIN L _ OIL SEPARATOR J DRAINAGE LINE OFFICE COMPLIANCE~ WELLS • • CAR LIFTS r -1r-1 I-IL II I 1 DIESEL 1 rEGU~ 1 PREMIUM 1 I • II • 11 • I l1tll•ll• I NEW TANK LOCATIONS LT_JL 1 JLT_J - .,..., TUTU TEXACO SERVICE STATION I I I / /<.C~~fJ I L -1 I .,..., .,...,,... x_.\.-v r - - - - - - , e MW-40 t-=---=:_ ~ -rl i : v ~:~IOUS --- I I I I I LOCATION w 0 z w LI.. GARBAGE STORA.GE .___ GARBAGE DUMP~;TER \ \ \ \ \ • MW-3 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 8-7 0 TUTU FIRE STATION I I: I I I I I:"' . I CONCRETE \ \ PAD \ \ I I i I ' " I ~ I I I 1 I - ~ ' , I , I I I 1 IL ~ L _____ -__ J IL ----- ~ -- ·----------~ I L _ __:-:_-:_-:_-:_-:_-:_-:_-:_ :..~ ....:-=.-:_ -:_-:_-:_-:_ -:_-:_-=_ .J ---····:F·:--,----= --1. _______ I I -~ ' ·_ % ·~~~~~~~ AIR PUMP -{ DIESEL PUMP . PUMP ISLAND \,£METAL POLE= '., -= .. "·' == =====;;;;~;;---\:A~?PY''. === CURB i . ). * - MW-5 0 . i ·, ,, , - ' ' . t . . ': / .{. TILLETT PROPERTY LIGHT POLE l _, CURB R 0 U T E PROJECT NO.: PR0013.018 FILE NO: TU-262 DRAWING: TU-262 PLOT SIZE: 1 =20' fSc i LE V~RIFICA~ION 1-----------'------- 1 . .- .: \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ====~~ POWER • 1 ' ~' LINE POLE I/I STORM SEWER CATCH BASIN .. . (. -•r : 3 8 i.. ~ . : ' " . I ... ..... , . . ' ' ! MW-1 e MW-6De 8-12 0 M.H. 0 ,· :._ .. L i J.i .·, LEGEND ': EXISTING SHALLOW MONITORING WELL LOCATION EXISTING DEEP MONITORING WELL LOCATION ' ,.. ·~ . SOIL BORING LOCATION ' MANHOLE FOR SANITARY SEWER ;J SCALE 0 ' If 1 20 40 FIGURE - DRAWING CONFIDENTIAL: THIS DRAWING AND ALL INFORMATION CONTAINED THEREON IS ANO SHALL REMAIN THE PROPERTY OF GERAGHTY & MILLER, INC. AS AN INSTRUMENT OF PROFES- SIONAL SERVICE. THIS INFORMATION SHALL NOT BE USED IN WHOLE OR IN PART 'WITHOUT THE FULL KNOWLEDGE AND PRIOR WRITTEN CONSENT OF GERAGHTY & MILLER, INC. ' THIS BAR REPRESENTS i ONE INCH ON THE l d RIGINAL. DRAWIN? : DRAFTED BY: J. DE SOUZA .l DATE: 12- 15- 93 ______ iSITE PLAN OF TUTU TEXACO SERVICE STATION ---·-- · 4-4 CHECKED _BY: R. EVELEIGH DATE: 12-15-93_ APPROVED BY: T. DANAHY DATE: 12- 15- 93 '" -- -'·- ' ' ~ lj - ; _, • I i ~ • - I.. - ' \ ' . ~ 1USE\1 TO VERIFY 'Fl_GURE t REPRODUCTION SCALE 'l ~' -~ ...... ·'' ._, ~- TUTU WELLS SITE ST. THOMAS. U.S. VIRGIN ISLANDS EPA REGION II SCANNING TRACKING SHEET DOC ID #64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 4-4 SITE PLAN OF TUTU TEXACO SERVICE STATION THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 UNDER'GROUND STORAGE · TANK' NO. 3 (RAMP1 TANK) ,'<.:: ·~ · .... , ii; 'TOTAL DEPTH WATER TABLE. .. BLS . BELOW L*:ND S\jRFAGE SOURCE: FOUR WINDS PLAZA PARTNERSHIP (1993). · PIHC ,._ ________________ ..._. ______________ -.i.,i,..._._,,.. ______ .......,......, __ ......,....,....,._...,-..;,,..___~~.-______________ _..._._......, TUTU . WELLS SITE . . ST .. THOMAS, U.S. VIRGIN· !SL.ANDS -- ··· - - ~ 1 - ··- ---'--·· --r-· - - ·--- . ~-----. --- ----·-- - ·-r· EPA REGION II SCANNING TRACKING SHEET DOC ID #64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 4-5 WESTERN AUTO FACILITY SOIL ANALYTICAL RESULTS FOR SAMPLES COLLECTED IN NOVEMBER AND DECEMBER 1992 THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 B-104 NOT DRILLED DUE TO A THICK CONCRETE SLAB 8-101 (0.0-1.5') (4.0'-4.75') (8.0'-10.0') (10.0'-12.0') CHLORINATED COMPOUNDS ( ug /kg) ND BTEX AND BNA COMPOUNDS (ug/kg) Ethytbenzene ND To~ene ND Methylxylene ND o-p Xylene ND ND ND ND ND ND ND ND 27.B 59.6 108.3 ND 303.5 5~ !3 . 3 1,008.5 1,286.4 B-103 (0.0-1.0') (2.0'-2.5') (5.0'-5.5') (7.0'-7.5') CHLORINATED COMPOUNDS (ug/kg) Tetrachloroethene 394.3 85.1 ND ND BTEX AND BNA COMPOUNDS (ug/kg) Benzene NO ND ND 5.5 Ethylbenzene ND ND ND 25.9 o-p Xylene ND ND ND 6.1 0 B-106 (0.5-1.0') (2.5'- 3.0') (4.0'-4.25') CH LORINA TED COMPOUNDS ( ug/kg) ND ND ND BTEX AND BNA COMPOUNDS (ug/kg) SCALE 50 ND ND ND 100 l B-109 (0.0-2.0') (4.0'-6.0') (8.0'-9.5') CHLORINATED COMPOUNDS (ug/k9) Tetrachloroethene ND ND 10.46 BTEX AND BNA COMPOUNDS (ug/~ ND ND ND DRUGSTORE ---- .......... --- i i I I i i ! i i I I . I i J~ ... ---....... ...... 1 __ ·~--·-~-- --.... ~--... -- i ' ! ' i PAVED P/A SOURCE: SOIL-TECH CORPORATION (1990b). B-105 (0.0-1.5') CHLORINATED COMPOUNDS {ug/kg) ND BTEX AND BNA COMPOUNDS (ug/kg) ND CAR WASH PAVED PIA MW-10 •e MW-100 _] B- 107 (0.0-1.5') (4.0'- 5.5') CH LORINA TED COMPOUNDS ( ug/kg) ND ND BTEX AND BNA COMPOUNDS (ug/kg) ND ND VITELCO ----· • B- 1p2 (0.0- 1.5') (4.0'-6.0') (8.0'-10.0') (10.0'-12.0') CHLORINATED COMPOUNDS (ug/kg) ; ND ND ND NJ BTEX AND BNA COMPOUNDS (ug/kg) Benzene ND Eth;ibenzene ND Tolu~ne · ND Melhylx}'lene ND o-p X~ene ND ND 58.2 ND ND ND ND 1,116.9 ' ND 425.6 714.9 ,. 625.0 1,031.o ND 575.0 NA . . B-108 (0.0-1.5') (4.0'-6.0') (7.5'-8.5') CHLORINATED COMPOUNDS ( ug/kg) ND ND ND BTEX AND BNA COMPOUNDS (ug/kg) ND ND ND LEGEND MW-18$ PROPOSED SHALLOW MONITORING WELL LOCATION MW- 1 • EXISTING SHALLOW MONITORING WELL LOCATION MW- 6D. EXISTING DEEP MONITORING WELL LOCATION FOUR WINDS I -tjr EXISTING SUPPLY WELL LOCATION CHT-6D g B- 12 0 ... 175.89 •HH BTEX BNA ND NA (0-2.0') J ug/kg P/A MONITORING WELLS INSTALLED BY CARIBBEAN HYDRO- TECH, INC. (LOCATIONS APPROXIMATE) SOIL BORING LOCATION EXISTING CONTROL MONUMENT (ELEVATION IN FEET ABOVE MEAN SEA LEVEL) LOCATION OF WELL IS APPROXIMATE MANHOLE BENZENE, TOLUENE, ETHYLBENZENE, AND XYLENES BASE NEUTRAL/ACID EXTRACTABLE COMPOUNDS NOT DETECTED NOT ANAL VZED DEPTH OF SAMPLE INTERVAL IN FEET BELOW LAND SURFACE RESULT WAS DETECTED BELOW THE REPORTING LIMIT AND/OR IS AN ESTIMATED CONCENTRATION MICROGRAMS PER KILOGRAM PARKING AREA A~ GERAGHTY · DRAWING CONFIDENTIAL: THIS DRAWING AND ALL INFORMATION CONTAINED THEREON IS AND SHALL REMAIN THE PROPERTY OF GERAGHTY & MILLER, INC. AS AN INSTRUMENT OF PROFES- SIONAL SERVICE. THIS INFORMATION SHALL NOT BE USED IN WHOLE OR IN PART WITHOUT THE FULL KNOWLEDGE AND PRIOR WRITTEN CONSENT OF GERAGHTY & MILLER. INC. PROJECT NO.: PR0013.018 FILE NO: TU-276 ' . SCALE VERIFICATION t-::-:DR~A'.":'::Wl'."'.'"NG- : -------+--P-LO_T_S_IZE-:-1=_5_0_--I TUTU ESSO SERVICE ST;A TION SOIL ANALYTICAL RESULTS FOR SAMPLES COLLECTED BY SOIL TECH CORPORATION FIGURE Ali' & MILLER, INC. ..4if Environmental Services • THIS BP.R REPRESENTS ONE 1NCH ON THE ORIGINAL DRAWING: ~ · I USE TO VERIFY FIGURE REPRODUCTION SCALE DRAFTED BY: E. CALDERON CHECKED BY: N. BENO'MTZ APPR0\/£0 BY: T. DANAHY ] DATE; 12-14-93 .. IN DECEMBER 1989 TtJTU WELLS SITE 4-6 DATE: 12-14-93 DATE: 12-14-93 ST. THOMA.,S, U.S. VIRGIN ISLANDS F EPA REGION II SCANNING TRACKING SHEET DOC ID # 64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 4-6 TUTU ESSO SERVICE STATION SOIL ANALYTICAL RESULTS FOR SAMPLES COLLECTED BY SOIL TECH CORPORATION IN DECEMBER 1989 THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 ' ,. ~ . . "'' :; .. _ ... ". . .. ,,,.--------------------------------------------------------------------------~------------------------------------__,==.._--.,._.._...,.. ______ ~~~: ... _,..._ .... ...., ________________________________________ • __ _. ________ ~·---=~--_,.,.,....._.~~~~a~i__,.,,.. •. -,. . .., .; . i OHSS-1FR (5') USEPA SAMPLE No. TW5 DUP CHLORINATED COMPOUNDS• (ppb) Meth}'l~me Chloride Tetrochloroethene 3,000 BJ 22,000 BTEX AND BNA COMPOUNDS•• (ppb) X~enea 4, 700 BJ (BNAs NOT ANAL YlED) TOTAL PETROLEUM HYDROCARBONS (ppm) NA 0 SCALE 50 100 SS-6FR CHLORINATED CQMeOONPS• (ppb) Meth}'lene chloride 22 BTEX AND BNA COMPOUNDS•• Copb) But}'! benz}'I phtholote 75 J Di-n-but}'I phtholote 62 J TOTAL PETROLEUM HXQROCARBONS fopm) NA SS-6 CHLORiNATEQ COMPQUNPS• (ppb) Meth}'lene chloride 22 Tetrochloroethene 1 J BTEX AND BNA COMPCUNQS•-. (Apb) BTEX ND BNAs R TOTAL PETROLEUM HYDROCARBONS fopm) NA B-1.M.!Q. ... 2.Ql .c.l:iL.QRINATED CQMPO!JND.~--W.bl Tetrochloroethene 15 BIEX AND BNA COMPOUNDS"• (ppl>) ND TOTAL Pe:TROLEUM HYDROCARB9NS (ppm) NA OHSS-1 (2') USEPA ~MPLE No. TW2 CHLORINA 'TED COMPOUNl)S• (ppb) Meth)4ene Chloride 12 SJ · Acetone 310 Tetrochloroethene ~.4-01) D 1llEX AND BNA COMPOUNPS** {J)fl.b) ~y!1me~ 6, f:sJ (BNAs NOT ANAL YlED) TOTAL PETROLEUM HYDROCARBONS (ppm) NA OHSS-1 (5') USEPA SAMPLE No. TW5 CHLORINATED COMPOUNDS• (ppb) Meth}'lene Chloride 450 BJ Acetone 360 Tet.rochloroethene :SS,000 [) 2-Butonone 440 BJ _am ANO BNA COMPOUNDS** (ppl;i) X~enes 670 BJ (BNAs NOT ANAL YlED) TOT.A.L ?ETROLEUM HYDROCARBONS (ppm) NA OHSS-1 (8'~ USEPA SAMPLE No. TWB CHLORINATED COMPOUNDS• (ppb) Meth}'lene Chloride 290 BJ Aceton6 · 1 ,JOO Tetrnch!oroethene 400 J 2-Butc.none 320 BJ mx...At.{Q . ..aliA. . .;.r'a4P.Q',iNDSoi<• { ppb) ND (X)iene RESULTS NOT AVAILABLE) (BNAs NOT ANALYlf:O) .TOTAL PETROLE;,UM H'l'DROCARBONS (ppm) NA OHSS-i 20' IJSEPA SAMP!..£ No. ;w20 CHLORINATED COMPOUNDS• (ppb) Meth}~ene Chloride 1,300 B J2IEt..A!!Ul...e&..~~~ ND (Xylene RESULTS NOT AVAILABLE) (BMAs NOT ANALYlED) TOTAL PETROLEUM HYDROCARBONS (ppm) N.6. r . B-10 (6.0-8.0') CHLORINATED cm.1POUNDS• fopbl ND Sl~X ... MW~l.i COMPOUNDS** (ppb) But}'! benz}'l phthoiote 160 J Di-n-bul}'I phthalote 220 J TOTAL PETROLEUM HYDROCARBONS (ppm) 27 ! ' ' /' ' ' ,/.~-... ' \ .. / '\;' , ... .j ' ( './ . . ,, ~, ----~----.~~~.~~~- i----- e02-02 ) NOTES: '1. SOIL SAMPLES B-10, B-11, B-12, B-13, B-13A, SS-6, AND SS-6FR WERE COLLECTED BY GERAGHTY & MILLER, INC. IN AUGUST 1992 (GERAGHTY & MILLER, INC. 19930); SOIL SAMPLES e-·01, e02-01, e02-02, e02-03 WERE COLLECTED BY CAMP, DRESSER & McKEE ON SEPTEMBER 8, (e-01) AND JUNE 5, 1989 (e02-01, e02-02, e02-03) (COM 1990b); SOIL SAMPLES FROM OHSS-1 WERE COLLECTED BY GEO-CARIBE ON JUNE 27, 1990 (IT CORPORATION 1990). 2. SOIL SAMPLES e02--01, e02-02, AND e02-0.3 WERE ALSO ANALVZED FOR BNAs, PESTICIDES, POLYCHLORINATED, BYPHENYLS (PCBs), TOTAL PETROLEUM HYDROCARBONS, ANO METALS, BUT NO RESULTS WERE AVJJLABLE. . I CHLORJ!:lATf..!liOMP,9_U~!DS• (ppb) 1 ,2-D ich lorn~th ~ne 20 Trichloroeth~ne 75 T11trochlor0Jith~ri® 180,000 •-W".:'l1 ~----r·,~-----....t ~02-03 CH.LORINA TED CC',ilPOUNDS• (ppb) · i'W 1988 HARVEY·ljt· 8- 12 0 SS-8 * OHMW-2 0 BTEX BNA * ** ND NA FR (0- 2.0') 8 J D R ppb ppm ·- ·-----. I L.EGENQ I I EXISTING SUPPLY WELL LOcA·noN I SOIL BORING LOCATION SURF ACE SOIL SAMPLE APPROXIMATE LOCATION O'HENRY MONITORING WELL l_OCATION BENZENE, TOLUENE, ETHYU3E.NZf.NE, AND XYLENES BASE NEUTRAL./ ACID EXTRACTABLE COMPOUNDS lNCLUOES NON- CHLORINATED, NON .. -BTEX VOLATILE ORGANIC COMPOUNDS INCLUDES MOSTLY PETROLEUM- RELATED COMPOUNDS SOME BNA COMPOUNDS MAY BE LABORATORY ARTIFACTS NOT DETECTED NOT ANAL YlED FIELD REPLICA TE DEPTH OF SAMPLE INTERVAL IN FEET BELOW LAND SURFACE ANAL YTE ALSO FOUND IN FIELD BANK RESULT WAS DETECTED BELOW THE REPORTING LIMIT AND / OR IS AN ESTIMATED CONCENTRATION ANAL YTE IDENTIFIED AT A SECONDARY D!LUTIOl\I REJECTED PARTS PER BILLION PARTS PER MILLION 1-.L..------------------------------------..... ------------------------------------.-----------------r!'~~~~~~~~----r":::':"'.~~~~~--,--- ·--------------....-·-=~-------------------------------------------------------------,,....----------t ~:~=~~: NO.; PR00 1 3.0 18 ~~~/~~~=~ 9 O'HENRY""CLEANERS FACILITY SOIL A~ GERAGHTY Air & MILLER, INC. ~ Environmental Services DRAWING CONFIDENTIAL: THIS DRAWING AND ALL INFORMATION CONTAINED THEREON IS ANu SHALL REMAIN THE PROPERTY OF GERAGHTY & MILLER, INC. AS AN INSTRUMENT OF PROFES- SIONAL SERVICE. THIS INFORMATION SHALL NOT BE USED IN WHOLE OR IN PART WITHOUT THE Full KNO'WL.f:UGE: AND PRIOR WRITTEN CONSENT OF GERAGHTY & MILLER, INC. SCALE VERIFICATION THIS ~R REPRESENTS ONE INCH ON THE ORIGINAL DRAWING: USE TO VERIFY FIGURE REPRODUCTION SCALE DRAflED BY: E. EAGLESTON CHECKED BY: N. BENOWIT,Z APPROVED BY: T. DANAHY DATE: 12-3-93 DAT~: 12-3-93 DATE: ANALYTICAL RESULTS OF SAMPLES COLLECTED SEPTEMBER ·~998, JUNE 1989, JUNE 1990,: AND AUGUST 1992 TUTU WELLS SITE ST. THOMAS, U.S. VIRGiN ISLANDS . '· ' . \: 1. i , I• F1GURE 4-7 EPA REGION II SCANNING TRACKING SHEET DOC ID #64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 4-7 O'HENRY CLEANERS FACILITY SOIL ANALYTICAL RESULTS OF SAMPLES COLLECTED SEPTEMBER 1988, JUNE 1989, JUNE 1990, AND AUGUST 1992 THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 :f ,. SCALE 0 100 200 c::=====i=:::::===::::::i 'I - ' '"' "' ·~ . /"'-,// J +, ' HARTHMAN . '-... \ CRUSHER . ,, ) (PREVIOUSLY HARTHMAN 111) * '----'-'-------~ HARTH MAN CRUSHER 3 (HAFITHMAN Ill) DCC 2 l_ P£:E ______ l_J _ __, l e;;;·· J .~ I HARTHMAN •.. . ' ESTATE * 'Y" .. ' . ' ' I I ' ' I ' ' ' ' ' ' ' : OHMW-31 Meth)iene Chloride 4 BJ TCE 8 PCE 1 1 ' '· ' '·,/! '! '-:.f EGLIN I 5 DCE TCE PCE ,--·-·-" / ... , .. .,, I I/ u,,- 1 • ,-------"------- r-----'-----~\ OHMW-2 1 OHMW-2F'R 1 \' (_J ,,-~l '· - ~ ill TCE 6 TCE PCE 5 PCE HARTHMAN WILFRED 3 (HARTHMAN II) DCE TCE PCE ' ' / 5 J ,:' 1 J 7 J OHMW-1 1 ' ' ' / ' ' Methl!!•o• Chloride TC(' ! 7 5 1 BJ 6 TCE , . .' Toluene 44 D I( . I Meth)iene Chloride 1 BJ TCE 47 PCE 1,400 D / / / / ~----- ----~ EGLIN Ill 4 EG.blli_![_4 __ _ DC.£ 120 J 1-==--------- TCE 22 J !----------·---·- Acetone 22 J 68 J DCE .52 J 10 J .!. \ \ . \ \ ' LAPLACE 5 DCE TCE PCE N .,_.-,., . . .., \' - ·,( ., ["/ 'y- '·;F -. ..., ... , 140 J 24 J 98 J SOURCES: GERAGHTY & MILLER. INC. (1993b). INTERNATIONAL TECHNOLOGIES CORPORATION (IT CORP.) (1990). MW-18$ MW- 1 • MW-6De EGLIN-I-$- CHT-SD Q B-12 0 SS-8 * OHMW-4 0 .. 175.89 oCB P/A DCE TCE PCE D FR J B LEGEND PROPOSED SHALLOW MONITORING WELL LOCATION EXISTING SHALLOW MONITORING WELL LOCATION EXISTING DEEP MONITORING WELL LOCATION EXISTING SUPPLY WELL LOCATION MONITORING WELLS INSTALLED BY CARIBBEAN HYDRO-TECH, INC . (LOCATIONS APPROXIMATE) SOIL BORING LOCATION SURF ACE SOIL SAMPLE APPROXIMATE LOCATION O'HENRY MONITORING WELL LOCATION EXISTING CONTROL MONUMENT (ELEVATION IN FEET ABOVE MEAN SEA LEVEL) LOCATION OF WELL IS APPROXIMATE CATCH BASIN MANHOLE PARKING AREA 1,2-DICHLOROETHENE TRICHLOROETHENE TETRACHLOROETHENE ANALYTE IDENTIFIED AT SECONDARY DILUTION FIELD REPLICATE ESTIMATED VALUE ANAL YTE ALSO FOUND IN FIELD BLANK :..LL CONCENTRATIONS IN PARlS r;ER BILLIVN (ppb) _EXCEPT TPHs WHICH ARE 'N PARTS PER MILLION (ppm) SAMPLES COLLECTED AUGUST 2, 1990 (IT CORPORATION 1990) 2 SAMPLES COLLECTED SEPTEMBER 25, 1990 (GERAGHTY & MILLER, INC. 1993b) 3 SAMPLES COLLECTED SEPTEMBER 26, 1990 (GERAGHTY & MILLER, INC. 1993b) 4 SAMPLES COLLECTED EEPTEMBER 27, 1990 PERAGHTY & MILLER, INC, 1993b) 5 SAMPLES COLLECTED OCTOBER 2, 1990 (GERAGHTY & MILLER, INC. 1993b) 6 SAMPi_ES COLLECTED FEBRUARY 5. 1991 (GERAGHTY & MILLER, INC. 1993b) :\OO- / LINE OF TOTAL CONCENTRAJION OF PCE, TCE AND DCE (IN ppb) ,;~--------~--=--- '--~ .. -,__~_.,.....__,, _______ ..... _______ ..... ____ ""' ___ _,. ______ ,,,_,.,...,""'""'"-·'"''"""""------1-;:::-1-:=:-11.;;;.;,0JEIDC;T:-;N~o'.'."., -;.;;;.oo;;;;;:,,;-;,0;;:18;--r,,:;;-,LE~NO,:;,----r-""'.'"':-----------------------------.------.J A~ DRAWING CONFIDENTIAL: THIS DRA'MNG SCALE VERIFICATION REV. NO. DATE DESCRIPTION BY APPR. GERAGHT''{ --~ DRAY<NG: TU-281 PLOT SIZE' 1•100 AND ALL INf"ORMATION CONTAINED THEREON IS THIS BAR REPRESENTS O'HENRY CLEANERS FACILITY GROUNDWATER DRAFTED 9y, E. EAGLl:STON DATE: 12-15-93 ANALYTICAL RESULTS FOR SAMPLES COLLECTED IN .AlW ~; MTLI ·ER TNC AND SHALL REMAIN THE PROPERTY OF GERAGHTY oNE 1NcH oN rnE ~.. G .t ,, , LL > ·'-' • & MILLER, INC. AS AN INSTRUMENT OF PROFES- ORIGINAL DRAWING' ... Environ·mentcil Sen;ices SIONAL SER'v1CE. THIS INFORMATION SHAUL NOT BE USEO iN WHOLE OR IN PART WITHOUT THE t--~~-+---+-~-------------·-~--<- · t-CH,,...E,,...CKE...,,o _ev_, _N._•E~"0-"~TZ-+-D'-.,AT="'E'_1.o... 2--'- 15-..c93:__-1 AUGUST, SEPTEMBER, OCTOBER 1990 AND FEBRUARY 1991 APPROVED BY: T. DANAHY DATE: 12-15-93 TUTU WELLS SITE FIGURE 4-8 /--------------------! FULL KNOWLEDGE ANO PRIOR ~ITTEN CONSENT USE TO VERIFY f"IGURE REPRODU~TION SCALE '-.1...------------------------------'------~ · OF GERAGHTY & MILLER, INC. .C- '.-o' O'c-"""-~"'"''""'''-'""O=-=>=="""'"-'=-->""'-"''?,""'--"'<'-"·ic= O.-"'""""'-'.- _,_,.-~,,..,,.-.,,.,_~,_.,=,•"'-=~·"'"'-t'""''=""~.,,,....--...-r.>;- .C.-...... ,__-------"L-.-..,......1.---~·•">(0,__..._,, __ ~-·-_,,---·-- ST. THOMAS, U.S. VIRGIN ISLANDS ·1 EPA REGION II SCANNING TRACKING SHEET DOC ID #64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 4-8 O'HENRY CLEANERS FACILITY GROUNDWATER ANALYTICAL RESULTS FOR SAMPLES COLLECTED IN AUGUST, SEPTEMBER, OCTOBER 1990 AND FEBRUARY 1991 THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 " .. -., 24 23 220 210 200 19 180 170 16 - ...I ~ 15 w ...I < w Ill 14 z < w :I ~ 130 0 Ill < IU 120 w II. - z 0 - I-< > w ...I w 110 10 90 80 70 60 5 40 30 20 1 A South ~'1ATTHIAS ' I, i I I ~I I ! i i i : I VERTICAL EXAGGERATION 1 OX / NOTE: LINE OF CROSS SECTIC·N SHOWN ON FIGURE 2-3 SCALE 0 200 FEET I A' North 240 / ,,---~\\ \ I \\\ I \ cmf1 \\ \ \ \ \ \ \ OH~1W- 4 v v v v v SEPT 11,1987 v 7 MW-1 D MW-1 // I .---- .-~- ·--- /_~-~--- tv1W-13D I I I I _) 111 v 1 11, • i II v ~.1W - 3 l 1 I - // E.G:JN--1 / --------1-nr_// I i I 1 H,A,RVEY SEPT 11, 1987 ..J:. TD EL.-22 FT I I I I I i SEPT 11, 1987 ... 1 I J~ -.-"\1 I f\r- ! I ! I I TD El.-81 ft M'vl/-60 M\V--6R _..... /" m-" i-A\V-47 MIN-40 FWDWT #2 ---?1 i = = i ,- 1:.. : ----------- -----f::-:1t-I i: , __ 5L---- MW "- 12D CHT-70 MW-9 /~r __ _ __FWDWT #1 //1: _ _ __ LAND S~_""1'~-" ___ _,./ ---- - [i r :-1 ! :- - f,Y~~' (tr~~ &-~~ re~ ~.,,:,,~ /// L'l 11 -- := // ': ,_' ~ e. • ,_ i I I I ~I v 11 ·"< I LY- v NR HEAVILY r-RACTURED 40-50 GPM (l:lYDROLOGIC ASSOCIATES U.S.A., INC. 1993a) \ HEAVILY FRACTURED (HYDROLOGIC ASSOCIATES U.S.A., INC . 19930_) ,_ ,_ " . -1 i: : j I:~ j I: - j '11 ' , ~ '7 j ~I ~ I \} i 'l ! ~1 "I -' "i -\}: -'1 i I v1 " • " . vi l • " • I I :\>o ! 00 00 i~o, 0 00 00 .... -.... - ........ _....r"-- -- --- GREEN ANDESITE BRECC!A ,l\NO TUFF CA8ES POINT CONGL.OMfRATE " ' I HEAVILY FRACTURED Iv (\") (HYDROLOGIC ASSOCIATES U.S.A., INC. 1993a) /- ~ --1 ~ J~ Ii ~ § -l >gg o, o, '- ' c-o p ·~I ' ·1 = ' 0 r I " / .. J~ -,o' I lgg _o SOME FRACTURING <5 GPM (HYCROLOGIC ASSOCIATES U_S_A_, INC_ : 993a) \ I ( '" tAAJOR FA.ULTS LARGE (1") FRACTURES (HYDRO LOGIC ASSOCIATES U.S.A., INC. 1993c) ( \ LESS FRACTURES 30 GPM (HYDRO LOGIC ASSOCIATES U.S.A, INC. 19930){ 1 § · ~ ~ I I I ~: ~~ ~? I ...;i;;; ~~ ~;:; - l ,.,-------"- -·-.. ~ --·---~--- SCALE VERIFICATION PRO.ECT NO.: PR0013_Q1J FlLE NO: Tll-270 REV. NO. DATE DESCRIPTION I BY I APPR _ I RE\/. NO.I DATE I DESCRIPTION I BY I APPR. DRAWlNG: TU-270 PLOT S1ZE: 1"-100' -1---~ .. - ~-- 1 '7 ___ ___...- _,Y- - W I - ---1 · j • [32] . . 0;:;0;:;0;:;0;:;00 o 0 oQo 0 o 0 o 0 0000000000. gogogogogo( ,., .. ,, ...... -····~··--·· ,.,..,•,.• ,.::.,·~···~···~. L> , ., ,_> ,. ·7·7···· ', ·~:, ;~·: •• !:> •t, el ----1 I _J '- I / // / :!'. ~ 2- l .. ~ NR TD EL" GPM i I I ., 0 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 o' o' 00 ,o 0011 00 00 ,o o' o' 00 00 00 00 o' ,o ,o o' o' o' o' ,o 00 00 ,o o' ,o ,o 00 o' o' o' ,o 0 o, 'o o, 00 'o 00 o, 00 o, 'o go oo_, ,o 00 ,o 00 ,o ,o 0 ' o 0 o 1 i..O ;,..,E i:y_&,~\:J_:Q f;LL Ai'4 CI 'iVC1.1,·rH 1:::F<ED RE .S HJ Uljt-,~ (C:i_A'r' ;'.o.JJ[l '.-) ~LJ) V'~EA.Tf-IERED VOLC~A.N!(' G:1JC!< ·voL,:ANIC AN[;-ESITE ·ruFr-- VO!_CAl\JL:; BRECClf\_ V·:)LC,\NIC 8RECCl1\~DEBR!S F LO~Y INTPlJSIVE DlORITI(; RO(;>·< CASES POINT CONGLOMER4TE LITHO!_OGIC LOGS No·r A\ifa,!LA BLE FRACTURED ZONE APPARENT OlP o~· LITf-IOLOGiC c;ONT_AC'T:; -"- 0 , 0 0 0 0 o, o, 'o o, 'o 'o o, o , 'o 1dl1 .oo ;oi 0 (D1P ~AEASUREME~JTS WERE TAi<EN AT NEL;,R8Y () lJ C(: ~~(J P-S · THE DIP AN()LES WFF\E PRO,JECTED ONTO A L\r.;}: OF \/ERTICAL SECT!C)l\1 AND CORRECTED FOR Ar>p,b,REhl1 DiF' A i'~D F! ~~Ai~L .'f ::__:o:;'RECTED FOR VERT:c:A.L [ _)(A.G(;[Rf-'>..T1f)N.) """" ·, -r.-- · - ·~ · , .. , · -. , ,~ ,·o · · ~ , · DEc.(J i"; /;,_ 1.:K -L"'.:.\' t .L.. •::.!_C. \k ; . ,, ,c; SHALLOW WATER-LEVEL ELEVATION MEASURED ON NOVEMBER 16, 1992 OF'Ef~ BO R C:~1 ()LE SCRZENEL' SECTIC•N.11CPEN INTER\ 1AL NC' i~ECOVERY TOTAL DEF'TH EL:::VATION Gfa,~LONS PER MlNtJTE .A..,. GERAGHTY A.,- & MILLER, INC. DRAWING CONFIDENTIAL: THIS DRAWING ANO ALL INFORMATION CONTAINED THEREON IS ANO SHALL REMAIN THE PROPERTY OF GERAGHTY & MILLER, INC. AS AN li~STRUMENT OF PROFES- SIONAL SERVICE. TlilS INFORMATION SHALL NOT BE USED IN 'M-10LE OR IN PART WITHOUT THE FULL KNOWLEDGE AND PRIOR WRITTEN CONSENT OF GERAGHTY Je f.11LLER, 1r~c . THIS BAR REPRESENTS ONE INCH 1 ON THE ORiCINAL DRA~NG I DRAflCD BY: K. McCANN DATE: 12-16-93 I j t;HECKf'{) bY: N. BENOWITZ DATE: 12 16 BJ --- I I HYDROGEOLOGIC CROSS SECTION 'fl/ Environmental Services • USE TO VERIFY FIGURE REPRODUCTION SCALE 1 APPRO'JEO 8Y: T. DANAHY DATE: 12-16- 93 TUTU WELLS SITE ST" THOMAS, u"s" VIRG!N ISLANDS I i~ ~ 230 220 210 200 190 180 170 160 - ...I 150 ~ w ...I < w 140 Ill z < w :I 130 ~ 0 m < 1- 120 w w II. - z 110 ~ 100 90 80 70 60 50 40 ~· n ~-*V 20 10 < > w ...I w A·/1. FIGURE 4.,.9 ~ ~ ·· ~ i~"v I EPA REGION II SCANNING TRACKING SHEET DOC ID #64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 4-9 HYDROGEOLOGIC CROSS SECTION A-A' THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 EPA REGION II SCANNING TRACKING SHEET DOC ID # 64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 4-10 FRACTURE LINEAMENTS AND DISTRIBUTION OF TRANSMISSIVITY VALUES THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 EPA REGION II SCANNING TRACKING SHEET DOC ID #64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 4-11 PETROLEUM-RELATED COMPOUNDS IN GROUNDWATER FEBRUARY 1992 TO MARCH 1993 THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 EPA REGION II SCANNING TRACKING SHEET DOC ID #64546 DOC TITLE/SUBJECT: TUTU WELLS SUPERFUND SITE FIGURE 4-12 CHLORINATED ORGANIC COMPOUNDS IN GROUNDWATER FEBRUARY 1992 TO MARCH 1993 THIS DOCUMENT IS OVERSIZED AND CAN BE LOCATED IN THE ADMINISTRATIVE RECORD FILE AT THE SUPERFUND RECORDS CENTER 290 BROADWAY, 18™ FLOOR NEW YORK, NY 10007 FIGURE PHASE II REMEDIAL INVESTIGATION IMPLEMENTATION SCHEDULE PR0013.001 AUTHORIZATION NO. MILLER, INC. Environmental Services TUTU WELLS SITE GERAGHTY & MILLER IMPLEMENTATION POTENTIALLY RESPONSIBLE PARTY REVIEW USEPA REVIEW MILESTONES LAB ANALYSIS PROJECT SCHEDULE SCH'D BY: D. NACHMAN aonannn * ST. THOMAS, U.S. VIRGIN ISLANDS CHK'D BY: T. DANAHY APPVD BY: D. NACHMAN 1993 1994 DECl JAN FEB MAR APR MAY JUNE JULY AUG SEPT OCT II M I * If 23 30 6 13 20 27 « 13 20 27 3 10 17 24 I S 15 22 21 S 12 It M 3 10 17 24 31 7 14 21 21 4 11 If 2S 2 I II 23 30 1995 JAN FEB MAR APR I IS 22 2> 8 « 19 21 S 12 It 2* 2 • II 23 MAY JUNE 30 7 14 21 4 11 K 2ft PROPERTY ACCESS PROCUREMENT EARTH CHANGE PERMIT APPLICATION AND APPROVAL TASK 1 SITE INSPECTIONS 2 SITE INSPECTION REPORT 3 SOIL-GAS SURVEYS 4 SOIL-GAS SURVEY REPORT 5 MONITORING WELL AND SUPPLY WELL SURVEYING 6 SUPPLY WELL INSPECTION 7 PUMPAGE IMPACT MONITORING _ MONITORING WELL INSTALLATION AND 8 STORM SEWER INVESTIGATION 9 WATER-LEVEL MEASUREMENTS 10 COMPREHENSIVE GROUNDWATER SAMPLING EVENT 11 DATA VALIDATION 12 MONTHLY REPORTS 13 DRAFT Rl REPORT 14 FINAL Rl REPORT 15 ANALYSIS OF REMEDIAL ALTERNATIVES 16 DRAFT FEASIBILITY STUDY B:TO-266 TUT OO5 O2'36 APPENDIX A SOIL GAS SURVEY PROCEDURES TUTU WELLS SITE ST. THOMAS, U.S. VIRGIN THOMAS GERAGHTY6? MILLER. INC. JUT OO5 O257 AEPENDIX A SOIL GAS SURVEY PROCEDURES TUTU WELLS SITE ST. THOMAS. U.S. VIRGIN THOMAS INTRODUCTION A soil-gas survey will be conducted at the Curriculum Center (former LAGA building) and the Virgin Islands Housing Authority (VIHA) maintenance area to identify potential sources of volatile organic compounds (VOCs) in soil. The study will be conducted in accordance with details outlined in Section 7.1.3 (Soil-Gas Surveys) of the Phase II Remedial Investigation (RI) Work Plan. VOCs detected by a soil-gas survey can originate directly from VOCs in the soil or from VOCs diffused upward into the soil atmosphere from ground water. Soil-gas surveys provide a qualitative indication of VOCs in the unsaturated zone, rather than a quantitative indication of VOCs in the soil or the ground water, because site-specific factors (such as paving, geology, distribution properties of VOCs, depth to water, soil moisture, and the geochemistry of the unsaturated sediments) can affect soil-gas concentrations. Although many soil gas surveys have been undertaken by various investigators at several facilities in the Tutu area, previously conducted soil-gas surveys have had mixed results due to these factors. Therefore, interpretation of the soil-gas survey results requires an understanding of the data and their limitations, as well as knowledge of the site geology. Additional sampling and laboratory analyses of the soil and ground water can confirm the presence and quantify the concentration of VOCs identified by the soil-gas survey. A Photovac 10S50 portable Gas Chromatograph (GC) will be used to determine the presence or absence of VOCs in soil vapor samples collected at the Curriculum Center (former LAGA building) and the VIHA maintenance area. A Photovac 10S50 GC will be used for its ability to separate and quantify selected VOCs. Results can be obtained from the GC within 20 to 30 minutes. Compound identification and approximate concentrations are provided; however, only those compounds for which the instrument is initially calibrated can be identified and quantified. Therefore, prior to the study, the GC will be calibrated with air standards for GERAGHTY & MILLER. INC. TUT 005 O258 3 benzene, toluene, xylene, trichloroethene, tetrachloroethene, cis-l,2-dichloroethene, and trans-l,2-dichloroethene. Each of these standards will be prepared by introducing a known volume of the compound into a 1 -liter (L) Tedlar bag that has previously been filled with organic-free air. SURVEY GRID The soil-gas survey will be conducted on an unbiased rectilinear grid pattern established initially on a 40-foot spacing. As "hot spots" are encountered, the grid will be reduced to 20- foot spacing, as needed. The survey will be conducted in the areas to the north and west of the Curriculum Center (former) LAG A building. These areas include the former LAG A loading dock area and the area adjacent to the former LAGA dry cleaning room. The survey will also include the areas to the north and west of the VIHA maintenance garage. Areas to be investigated at the Curriculum Center and VIHA maintenance garage are shown on Figure 7-1 of the Phase II RI Work Plan. The soil-gas survey results will be summarized on a map delineating the approximate areal extent and the concentrations of VOCs detected. This map will be used to evaluate potential sources and to identify optimal locations for monitoring wells at the Curriculum Center and VIHA facilities, as appropriate. CALIBRATION Prior to the initiation of the soil-gas survey, the GC will be calibrated with air standards of site-specific compounds. Standards will be made for each compound by introducing known volumes of each compound into a 1-L Tedlar bag that has been previously filled with organic- free air. The amounts of each compound injected into the Tedlar bag are based on the following formula: amount of compound added in microliters (ul) = (A x 760 mm/Hg)/p where A = concentration of the compound, parts per million by volume (ppmv) p = vapor pressure of the compound, in millimeters of mercury (mm/Kg) GERAGHTY^ MILLER. INC. TUT 005 O259 4 For each initial calibration, the standards will be injected into the GC five times. An average response factor will be obtained by dividing the concentration of the standard by the average area under the peak from the five injections. SAMPLING PROCEDURE A rotary hammer drill with a 1 1/2-inch bit will be used to obtain access to the soil beneath asphalt and cement, if present. If the asphalt or cement is believed to be thicker than 1 foot, which is generally the case around the loading docks, then no attempt will be made to core through it. A 1/2-inch diameter borehole in the soil will be created with a slide hammer and solid rod assembly. These boreholes will be approximately 3 feet in depth. The solid rod will be removed and a 1/4-inch diameter hollow, stainless-steel rod will be inserted. A 1/8-inch Teflon tube will be contained inside the stainless-steel tube. The Teflon tube will extend outside of the hollow, stainless-steel tube. Midway down the exposed tubing is a stainless-steel tee through which syringe samples will be taken. A nail inserted into the lower end of the Teflon tubing will prevent clogging of the assembly as it is lowered into the borehole. The nail will then be disengaged, and the top of the borehole will be sealed around the stainless-steel rod with drill cuttings. A pumping time study will then be conducted to determine the appropriate evacuation time(s) for soils at the Tutu Wells Site. In this study, the Teflon tubing is attached to a diaphragm pump and the borehole is evacuated for 1 minute. A 300-ul sample is collected through the stainless-steel tee with a gas-tight syringe, and then the pump is shut off. The sample is injected into the portable GC for analysis. This procedure is repeated until five samples, at 1 minute intervals, are collected. The pumping time to be used at the Tutu Wells Site will correspond to the time when the highest concentrations of VOCs are detected. If compounds are not detected in the first borehole, the procedure will be repeated. If compounds are not detected by the third borehole, a pumping time of 2 minutes will be used. Care will be taken to ensure that at least two probe volumes will be purged. COMPOUND IDENTIFICATION AND QUANTTTATION GERAGHTY& MILLER. INC TUT 005 O26O 5 The GC will identify all peak areas greater than 0.1 volt seconds (VS) as unknowns. The GC operator will then match the retention times of the most recent standard with the unknowns. If the retention times match, the VOCs will be identified and quantified by multiplying the area (in VS) of the VOCs by the response factor calculated from the initial calibration. The final concentration will be reported in parts per million (ppm). BLANKS Blanks will be run to determine if there is carryover from previous samples and standards. The blanks will be one of the following: GC blanks, syringe blanks, or equipment blanks. A GC blank will be run at the start of each day's sampling to ensure a steady baseline. This is done by starting a GC analysis without injecting a sample. Syringe blanks will be analyzed following the completion of the calibration runs by injecting 500 ul of ambient air into the GC (500 ul is the maximum capacity of the syringe). Syringe blanks will also be analyzed periodically during the day. VOC contamination detected in the syringe will be cleaned from the syringe by using a methanol and organic-free water rinse. Equipment blanks of the sampling apparatus (i.e., tubing and hose) will be analyzed following every sample where a positive result is obtained. Equipment blanks are collected by removing the sampling assembly from a borehole and running the pump for a few minutes to draw ambient air through the system. An air sample is collected from the stainless-steel equipment and analyzed with the GC. If VOCs are detected in the equipment blank sample, the sampling equipment will be decontaminated by purging the equipment with the sampling pump until the VOCs is no longer detected. QUALITY CONTROL In addition to the calibration analyses, duplicate analyses will be run once every ten samples. Continuing calibration analyses will be performed as required, or a minimum of once every 2 hours, by injecting 300 ul of the standard into the GC. A syringe blank will be run after every calibration check. The retention time of each compound will then be checked for peak drift by comparing the new retention time with the one from the previous standard analysis. GERAGHTY^ MILLER. INC TUT OO5 O261 6 A fresh standard will be prepared at the beginning of each day to update the average response factors. PR0013.»»»-WPl/120393.*>p GERAGHTYc* MILLER. INC TUT °°5 °262