•A Halliburton Company FIELD INVESTIGATION TEAM ACTIVITIES AT UNCONTROLLED HAZARDOUS SUBSTANCES FACILITIES - ZONE I NUS CORPORATION SUPERFUND DIVISION 0215 02-8902-40-PA REV. NO. 0 FINAL DRAFT PRELIMINARY ASSESSMENT TUTU TEXACO ST. THOMAS, U.S. VIRGIN ISLANDS PREPARED UNDER TECHNICAL DIRECTIVE DOCUMENT NO. 02-8902-40 CONTRACT NO. 68-01-7346 FOR THE ENVIRONMENTAL SERVICES DIVISION U.S. ENVIRONMENTAL PROTECTION AGENCY MARCH 31,1989 NUS CORPORATION SUPERFUND DIVISION SUBMITTED BY: DIANE TRUBE PROJECT MANAGER REVIEWED/APPROVED BY: JOSEPH MAYO RONALD M. NAMAN SITE MANAGER FIT OFFICE MANAGER 02-8902-40-PA Rev. No. 0 POTENTIAL HAZARDOUS WASTE SITE PRELIMINARY ASSESSMENT PART I: SITE INFORMATION 1. Site Name/Alias Tutu Texaco_________ Street Route 38 and Route 384 City St. Thomas (Tutu District) State U.S. Virgin Islands Zip 08002 2. County N/A County Code N/A Cong. Dist. N/A 3 ERA ID No. New Site 4. Latitude 18°20'34"N. Longitude 64" 53' 18"W. USGS Quad. Eastern St. Thomas. U.S. Virgin Islands Owner Texaco Caribbean Tel. No. 809-774-1931 Street P.O. Box 3740 City Charlotte Amalie State U.S. Viroin Island Zip 00801 Operator Unknown Tel. No._________________ Street________ City_________ State Z'P_ Type of Ownership [x] Private Q Federal Q State n County Q Municipal Q Unknown [Other Owner/Operator Notification on File Q RCRA 3001 Date QCERCLA103C Date [xj None Q Unknown 9. Permit Information Permit Permit No. Date Issued Expiration Date Comments None 10. Site Status [x] Active D Inactive O Unknown 11. Years of Operation Unknown to Present 02-8902-40-PA Rev. No. 0 12. Identify the types of waste units (e.g., landfill, surface impoundment, piles, stained soil, above- or below-ground tanks or containers, land treatment, etc.) on site. Initiate as many waste unit numbers as needed to identify all waste sources on site. (a) Waste Management Areas Waste Unit No. Waste Unit Type Facility Name for Unit 1 _______Drums________ Waste Oil Drums____________ 2 Underground Storage Tanks Waste Oil Underground Storage Tanks (b) Other Areas of Concern Identify any miscellaneous spills, dumping, etc. on site; describe the materials and identify their locations on site. No other spills, incidents of dumping, etc, were observed on the site during the NUS Corp. Region 2 FIT on-site reconnaissance on 2/15/89.___________________________ 13. Information available from Contact Amy Brochu______ Agency U.S. ERA_______ Tel. No. (201)906-6802 Preparer Joseph Mayo_____ Agency NUS Corp. Region 2 FIT Date 03/31/89_____ 02-8902-40-PA Rev. No. 0 PART II: WASTE SOURCE INFORMATION For each of the waste units identified in Part I. complete the following six items. Waste Unit 1 - ____Drums______, Waste Oil Drums___ 1. Identify the RCRA status and permit history, if applicable, and the age of the waste unit. There are no known RCRA permits for this waste unit. The age of this waste unit is unknown. Until June 1986, the Water and Power Authority (WAPA) accepted waste oil and used it for fuel. A batch of waste oil was found to contain polychlorinated biphenyls (PCBs), and WAPA stopped accepting waste oil. Currently, there is no acceptable method for disposal of waste oil on St. Thomas. Waste oil generators must store all their oil. 2. Describe the location of the waste unit and identify clearly on the site map. The waste unit is located in the northern corner of the Tutu Texaco property. 3. Identify the size or quantity of the waste unit (e.g., area or volume of a landfill or surface ; impoundment, number and capacity of drums or tanks). Specify the quantity of hazardous substances in the waste unit. There are twenty seven 55-gallon drums in the waste unit. Twenty-five of these drums contain waste oil generated from automotive repair and servicing operations. The remaining two drums reportedly contain dirt. There are also three 20-gallon drums and a few 5-gallon pails containing waste oil on site. The total quantity of waste in this unit is approximately 1420 gallons. 4. Identify the physical state(s) of the waste type(s) as disposed of in the waste unit. The physical state(s) should be categorized as follows: solid, powder or fines, sludge, slurry, liquid, or gas. Twenty-five of the drums contain liquid waste oil. Two of the drums reportedly contain dirt which is a solid. 5. Identify specific hazardous substance(s) known or suspected to be present in the waste unit. Twenty-five of the drums on site contain liquid waste oil from automotive repair and servicing operations. This oil may contain small quantities of gasoline, kerosene, or degreasing solvents. Sample analyses of waste oil from the Tutu Texaco station reportedly detected the , presence of trichloroethene (TCE). 6. Describe the containment of the waste unit as it relates to contaminant migration via groundwater, surface water, and air. The waste in the unit is contained in drums that are stored on a concete surface. There are no berms or curbing to contain the oil in the event of a spill. There is evidence of spills in the storage area, and the bung on one of the drums was open. A reading of 20 ppm was obtained from the open drum using an OVA flame ionization detector. There were no readings above background in the ambient air in the drum storage area. The containment of the waste unit provides the potential for release to surface water by runoff from spills and for release to groundwater by runoff and subsequent percolation through soil. Ref. No 1.21.22 02-8902-40-PA Rev No. 0 PART II: WASTE SOURCE INFORMATION For each of the waste units identified in Part I, complete the following six items. Waste Unit 2 - Underground Storage Tanks . Waste Oil Underground Storage Tanks 1. Identify the RCRA status and permit history, if applicable, and the age of the waste unit. There are no known RCRA permits for this waste unit. The age of this waste unit is unknown. Until June 1986, the Water and Power Authority (WAPA) accepted waste oil and used it for fuel. A batch of waste oil was found to contain PCBs, and WAPA stopped accepting waste oil. Currently, there is no acceptable method for disposal of waste oil on St. Thomas. Waste oil generators must store all their oil. 2. Describe the location of the waste unit and identify clearly on the site map. The exact location of the waste unit is unknown as the tanks were not observed during the on- site reconnaissance conducted by NUS Corp. Region 2 FIT on 2/15/89. A preliminary investigation conducted by the Department of Planning and Natural Resources (DPNR) on 8/5/87 indicated the presence of two underground storage tanks. One tank had a concrete top and a concrete partition and the second tank was covered with a square steel plate. The volume and composition of the tanks, were not determined. The material in the tanks is reported to be waste oil. 3. Identify the size or quantity of the waste unit (e.g.. area or volume of a landfill or surface impoundment, number and capacity of drums or tanks). Specify the quantity of hazardous substances in the waste unit. The capacity of the tanks and the quantity of waste in the unit is unknown. 4. Identify the physical state(s) of the waste type(s) as disposed of in the waste unit. The physical state(s) should be categorized as follows: solid, powder or fines, sludge, slurry, liquid, or gas. The physical state of the waste is liquid. 5. Identify specific hazardous substance(s) known or suspected to be present in the waste unit. The waste unit contains automotive waste oil. Substances such as gasoline, kerosene, and degreasing solvents may be present in the oil. Samples of Tutu Texaco waste oil were reported ,£fr contain ,TCE. i -- / 6. Describe the containment of the waste unit as it relates to contaminant migration via ground water, surface water, and air. The containment of the waste unit is unknown. The tanks are covered, but no other information concerning the tanks' waste containment properties is available. Ref. No. 1.21.22______________ 02-8902-40-PA Rev. No. 0 PART III: HAZARD ASSESSMENT GROUNDWATER ROUTE 1. Describe the likelihood of a release of contaminant(s) to the groundwater as follows: observed, alleged, potential, or none. Identify the contaminant(s) detected or suspected, and provide a rationale for attributing the contaminant(s) to the facility. The potential exists for wastes on the Tutu Texaco site to be released to groundwater. There is evidence (photo No. R3-P10) that spilled oil is staining soil and may be transported to groundwater. There are no berms or curbs to contain the waste from the drums in the event of a spill. One of the drums was open. The drums on site contain automotive waste oil. Air monitoring instrument readings indicate that organic vapors are present in one of the drums. It is reported that samples of waste oil collected from the site contained TCE. There is insufficient information available to evaluate a release from the underground storage tank for waste oil as the construction and integrity of this tank are unknown. There are no reports of spills or leaks from this tank; however, waste oil in the tank is being stored in violation of U.S. Virgin Islands laws. Ref. No. 1,22 2. Describe the aquifer of concern; include information such as depth, thickness, geologic composition, permeability, overlying strata, confining layers, interconnections, discontinuities, depth to water table, groundwater flow direction. The rock units of St.