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December 15, 1995 <br /> Page 2 <br /> groundwater monitoring results indicate that the plume is stable. Additionally, the fuel <br /> leak source has been removed. Therefore, according to the direction provided by the <br /> SWRCB, the primary remediation tool would be to monitor plume stability and to permit <br /> bioremediation to occur. PACIFIC and Chevron plan to retain those CAP elements that <br /> promote these objectives. <br /> The proposed elements of the CAP would include: (1) the installation of one or two <br /> additional groundwater monitoring wells to further define the downgradient extent of the <br /> plume, (2) the abandonment of all previously utilized soil vapor extraction wells and dry <br /> groundwater monitoring wells, and.(3)the abandonment of groundwater monitoring <br /> wells within the footprint of the proposed Taco Bell Restaurant. The active remedial <br /> technologies, soil vapor extraction and air sparging would not be installed at this site. <br /> Additionally, groundwater monitoring will continue to be performed in order to evaluate <br /> the progress of natural attenuation of hydrocarbons in groundwater beneath the site. <br /> In order to comply with Environmental Health Division requirements, and to remain on <br /> track with the recently developed project schedule, we would like to initiate a dialog <br /> regarding this approach at your earliest convenience. Please call myself(408/441-7500) <br /> or Brett Hunter at Chevron (510/842-8695) regarding the contents of this proposal. <br /> Sincerely, <br /> Pacific Environmental Group, Inc. <br /> Mark D. Sullivan <br /> Staff Engineer <br /> Robert K. enzlau <br /> Senior Engineer <br /> Attachment A- State Water Resources Control Board Letter Dated December 8, 1995 <br /> cc: Mr. Brett Hunter, Chevron U.S.A. Products Company <br /> Ms, Bette Owen, Chevron U.S.A. Products Company <br /> Ms. Diane Hinson, San Joaquin County Environmental Health Division <br /> Ms. Elizabeth Thayer, Central Valley RWQCB <br /> Ms. Carolyn Lawrence, 6318 Chesapeake Circle, Stockton, CA 95219 <br /> Mr. Michael F. Babitzke, 6 South El Dorado, Suite 305, Stockton, CA 95202 <br /> Ms. Julie Reese, Taco Bell, 17901 Von Karman, Mail Drop 707, Irvine, CA 92714 <br /> Ms. Deborah Marinosi, Taco Bell, 17901 Von Karman, Mail I?rop 707, Irvine, CA 92714 <br /> 3201337afhDOLET <br />