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PACIFIC <br /> ENVIRONMENTAL <br /> GROUP INC. <br /> 9: 27 <br /> December 15, 1995 <br /> Project 320-133.7B <br /> Ms. Mary Meays <br /> San Joaquin County <br /> Environmental Health Division <br /> 304 East Weber Avenue <br /> Stockton, California 95201 <br /> Re: Former Chevron U.S.A. Service Station 9-1918 <br /> 45 East Harding Way <br /> Stockton, California <br /> Dear Ms. Meays: <br /> Pacific Environmental-Group, Inc. (PACIFIC) has been performing environmental <br /> services for Chevron U.S.A. Products Company (Chevron) at the site referenced. One <br /> component of these services has been the preparation of a corrective action plan (CAP). <br /> In a meeting on December 7, 1995, Chevron agreed to adhere to an aggressive <br /> implementation schedule which included the preparation and submittal of a remedial <br /> action plan by December 26, 1995. <br /> Recently, the State Water Resources Control Board (SWRCB) provided <br /> recommendations which are pertinent to the implementation of remedial action at this <br /> site. Specifically, in a letter to all local oversight program (LOP) agency directors dated <br /> December 8, 1995 (Attachment A), the SWRCB states that, 'Tor cases affecting low <br /> risk groundwater(for instance, shallow groundwater with maximum depth to water less <br /> than 50 feet and no drinking water wells screened in the shallow groundwater zone <br /> within 250 feet of the leak) we recommend that active remediation be replaced with <br /> monitoring to determine if the fuel leak plume is stable." <br /> Furthermore, the SWRCB letter supports the Lawrence Livermore National Laboratory <br /> report, Recommendations to Improve the Cleanap Process for California's Leaking <br /> Underground Fuel Tank Cleanup, "which presents a convincing argument that <br /> bioremediation should be considered as a primary remediation tool in most cases once <br /> the fuel source has been removed." <br /> PACIFIC and Chevron wish to avail ourselves of this recent SWRCB decision. <br /> Regarding the referenced site, groundwater occurs at a depth of less than 50 feet, the <br /> nearest drinking water well is a minimum of 1,900 feet from the site, and historical <br /> 2025 GatewayPlace, Suite 440,San Jose, California 95110 (408)441-7500 FAX (408)441-7539 <br />