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APR 0 8 t-%A <br /> '-Nl 11001`174 F ITAL Hti.4LTH <br /> AEGIS ENVIRONMENTAL , I N <br /> 1050 Melody Lane, Suite 160,Roseville,CA 95678 + 916.782-21101916.969-21101 FAX 916.786-7830 <br /> March 1, 1993 <br /> Mr. Jerry Moore <br /> Moore Petroleum <br /> Post Office Box 67 <br /> Banta, California 95304 <br /> Subject: Addendum to Final Remediation Plan <br /> Frank's Exxon #2 <br /> 1399 E. Yosemite Avenue, Manteca, California <br /> Dear Mr. Moore: <br /> Aegis Environmental, Inc. (Aegis), is pleased to provide Moore Petroleum, Inc. (Moore <br /> Petroleum), this addendum to Aegis' "Final Remediation Plan" (FRP), dated May 12, 1992, <br /> previously submitted to Moore Petroleum and the concerned regulatory agencies. This <br /> addendum is provided in response to comments from the San Joaquin County <br /> Environmental Health Department (SJCEHD), in a letter to Moore Petroleum dated <br /> June 22, 1992, and will be copied to the SJCEHD and the Manteca Public Works <br /> Department upon approval by Moore Petroleum. <br /> The SJCEHD requested lowering the soil and groundwater target cleanup levels proposed <br /> by Aegis in the FRP. In particular, the SJCEHD requested the levels coincide with the <br /> following laboratory method detection limits indicated in the California "Leaking <br /> Underground Fuel Tank" (LUFT) manual: <br /> Constituent Groundwater Soil <br /> Benzene <0.5 ppb <5.0 ppb <br /> Toluene <0.5 ppb <5.0 ppb <br /> Ethylbenzene <0.5 ppb <5.0 ppb <br /> Total xylenes <0.5 ppb <5.0 ppb <br /> NOTE: ppb = Parts-per-billion. <br /> 90-096A.FRP <br /> GEOLOGISTS * ENGINEERS • GROUNDWATER SCIENTISTS <br />