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r • -..... .... _. - .. <br /> SECOR www u•r or.rom - <br /> INTERNATIONAL 3475 West Shaw Ave.,Suite 104 <br /> + F c 'n'CORPORATED Fresno,CA 93711 <br /> 559-271-2650 TEL <br /> 559-2715108 Fra <br /> January 23, 2006 i0)1 LLI'r�,� <br /> JAN,' 2 3 2006 <br /> Ms. Victoria McCartney <br /> EALTH <br /> San Joaquin County Environmental Health Division �NVIRDNIti'1SERDIT ,IVICES <br /> 304 East Weber Avenue, Third Floor PERMIT IER <br /> Stockton, California 95202 <br /> RE: Fourth Quarter 2005 Groundwater Monitoring Report <br /> Former Chevron Service Station 9-0557 <br /> 139 South Center Street , <br /> Stockton, California t ' <br /> SECOR Project No.: 77CH.90557.08 <br /> Dear Ms. McCartney: <br /> SECOR International Incorporated (SECOR), on behalf of Chevron Environmental <br /> Management Company (CEMC), has provided this report to summarize the fourth quarter <br /> 2005 (4Q2005) groundwater monitoring event at the above-referenced site. The site is <br /> currently a vacant lot located at 139 South Center Street, Stockton, California, is a former <br /> Chevron Service Station. <br /> COMPLETED ACTIVITIES - FOURTH QUARTER 2005 <br /> ■ Conducted quarterly groundwater monitoring and sampling, and; <br /> • Prepared and submitted quarterly groundwater monitoring report. <br /> PLANNED ACTIVITIES - FIRST QUARTER 2006 <br /> ■ Conduct quarterly groundwater monitoring and sampling, and; <br /> ■ Prepare and submit quarterly groundwater monitoring report. <br /> DISCUSSION <br /> On November 29, 2005, Gettler-Ryan Incorporated (G-R) performed 4Q2005 groundwater <br /> monitoring and sampling (Attachment A). The 4Q2005 groundwater monitoring event did <br /> not include data for offsite monitoring wells MW-5, MW-7, MW-8 and MW-13, due to Pacific <br /> Gas and Electric Company (PG&E) working in the area. PG&E work required that several <br /> lanes of South Center Street be closed off, thus rendering the wells inaccessible to G-R for <br /> sampling purposes. Additionally, during this sampling event, monitoring well MW-17 was <br /> N:1Files4ProjectsYCnevronlRetaiA#9-05571Periodic Monitoring1200514044Q2005 QMR 90557.doc <br />