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GERAGHTY '& MILLER, INC. Environmental Services Ground Water Engineering Hydrocarbon Remediation Education March 8, 1993 Caroline Kwan, Project Manager USEPA Region II 26 Federal Plaza, Room 737 New York, New York 10278 RE: Analytical Parameters and Sampling Locations Eighth Sampling Event Tutu Wells Site St. Thomas, U.S. Virgin Islands Dear Ms. Kwan: /""""N. On behalf of Ana Gloria Ramos, Designated Coordinator for the Tutu Environmental Investigation Committee (TEIC), Geraghty & Miller, Inc. has prepared this letter to confirm the March 4, 1993 telephone conference regarding the above-referenced subject. The telephone conference included Ms. Caroline Kwan, USEPA Project Manager; Ms. Ana Gloria Ramos, Designated Coordinator for TEIC; and Mr. Thomas Danahy, Geraghty & Miller, Inc. Project Manager. Mr. Danahy initiated the conference call at 9:15 am (Eastern Standard Time). The following agreements were reached during the telephone conference. • The Eighth Sampling Event of the supply wells at the Tutu Well Site will begin on Monday, March 29, 1993. It is anticipated that 5 days will be necessary to complete the sampling effort. This will be the last sampling event for the supply wells performed by TEIC. • Analytical parameters for the Eighth Sampling Event will include Target Compound List (TCL) volatile organic compounds (VOCs), TCL base neutral/acid extractable (BNA) compounds, Target Analyte List (TAL) metal parameters, and cyanide. All sampling and analysis will be performed according to the procedures outlined in the Revised Sampling, Monitoring, and Analysis Plan (SAMP) prepared by Geraghty & Miller in September 1990 and revised in September 1991. TUT 006 1661 201 West Passaic Street, 3rd Floor • Rochelle Park, New Jersey 07662 • (201) 909-0700 • FAX (201) 909-0567/0568 *64836* 64836 GERAGHTY & MILLER, INC. • The Eighth Sampling Event will include the following supply wells: Dede, Bench, Bevcon I (or Bevcon II), Bevcon III, Eglin I, Eglin II, Eglin III, Four Winds I, Four Winds II, Gassett (currently Antilles Finance is the tenant at this location), Harthman II, Harthman III (this well may be inoperable due to construction of the Tutu Park building), Harvey, LaPlace, Leonard, Matthias (if the owner allows access), Ramsay, Rodriguez, Smith, Steele, Tillett, VIHA I (or VIHA II), and VIHA III (or VIHA IV). The VIHA wells will be sampled if operable; they were not operable during the last sampling event (September 1992). Table 1 provides a summary of the proposed sampling. The anticipated schedule for the Eighth Sampling Event is presented in Table 2 (enclosed). If you have any questions or comments, please call Ana Gloria Ramos at (809) 749-8943. Sincerely, GERAGHTY & MILLER, INC. v. Thomas V. Banahy // Senior Scientist/Project Manager £/ Daniel A. Nachman Project Director/Project Officer TVD/Uc:lcb PR00801-WP1/030593 .Itr c: A.G. Ramos, TEIC F. Torres, GAF&A R.S. McCay, Texaco R. Mozer, G&M Plainview, NY D. Cook, G&M Santurce, PR W. Morales, G&M Santurce, PR J. Agrelot, Soil Tech. L. Reed, DPNR TUT OO6 1662 •Table 1. List of Sample Locations and Analytical Parameters for the Eighth Sampling Event, March 1993, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. Supply Well Proposed Analytes Dede Dench Devcon I (or Devcon II) Devcon II Eglin I Eglin H Eglin III Four Winds I Four Winds II Gassett (currently Antilles Finance) Harthman II Harthman III (if operable) Harvey LaPlace Leonard Matthias (if owner allows access) Ramsay Rodriguez Smith Steele Tillett VIHA I (VIHA II) (if operable) VIHA III (VIHA IV) (if operable) TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide TCL VOCs, TCL BNAs, TAL Metals, and Cyanide All sampling will be performed according to the procedures presented in the Revised Sampling, Monitoring, and Analysis Plan (Geraghty & Miller, Inc. 1991). TCL Target compound list. TAL Target analyte list. VOCs Volatile organic compounds. BNAs Base neutral and acid extractable compounds. VOC analysis was performed using modified USEPA Method 524.2, Revision 3.0 (USEPA 1989). PR008.01-WPl/030593.1tr/Uc:lcb GERAGHTY & MILLER, INC. TUT 006 1663 Table 2. Anticipated Schedule for the Eighth Sampling Event, Tutu Wells Site, St. Thomas, U.S. Virgin Islands. Date Sample Locations March 29, 1993 March 30,1993 March 31, 1993 April 1, 1993 April 2,1993 Harvey (Blind field replicate — Easton) Gassett (Currently Antilles Finance) Equipment Blank Water Blank Harthman II Harthman III (if operable) Trip Blank (VOCs only) Eglin I Eglin II Eglin III Steele (MS/MSD) Rodriquez Trip Blank (VOCs only) Tillett Four Winds I Four Winds II Ramsay Leonard Trip Blank (VOCs only) La Place Dench Devcon I (or Devcon II) Devcon III Dede Trip Blank (VOCs only) VIHAI (or VIHAII - if operable) VIHA III (or VIHA IV - if operable) Smith Matthias (if owner allows access) Trip Blank (VOCs only) VOCs Volatile organic compounds. MS Matrix spike. MSD Matrix spike duplicate. PR00801/030193.wt3/Icb GERAGHTY & MILLER, INC. TUT OO6 1664