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s Geological Audit �� .11 <br /> IN T <br /> � .��1 <br /> Environmental Professionals <br /> v <br /> 1803 W.March Lane,Suite A•Stockton ZCftOr7(2 p '9 6- 64• FAX(209)956-0700 <br /> December 15, 1993 <br /> i <br /> Mr. Michael Infurna <br /> San Joaquin County PHS/EHD <br /> P. O. Box 2009 <br /> Stockton, CA 95201 <br /> ii <br /> i� <br /> Subject: Puregro <br /> 1904 West Charter Way, Stockton, Califonilla <br /> Dear Mr. Infurna: <br /> i� <br /> As you are aware, Geological Audit Services, Inc. (GeoAudit) performed third quarter 1993 <br /> monitoring at the subject site. on September 30, 1993. Groundwater depths were measured <br /> and the groundwater gradient and flow direction were calculated. No groundwater samples <br /> were collected or analyzed. 'Ile results of the monitoring were presented in a brief <br /> Quarterly Monitoring Report dated October 11, 1993. <br /> In keeping with the standard quarterly monitoring schedule, the fourth quarter 1993 <br /> monitoring should be performed prior to December 31, 1993. However, because of delays <br /> in obtaining authorization from the client(s), we would like to request a two,week extension <br /> for the quarterly monitoring.~—� <br /> The fourth quarter monitoring will be scheduled and pet,formed �r_ior to January 14, 1994 <br /> with a quarterly report submitted by February 14, 1994. )Ve also propose to remain on the <br /> standard monitoring sci�eciule, with the first quarter i94 monitoring-scheduled prior to —rm- <br /> March 30, 1994. i <br /> A�work 1?la�r.for a soil and groundwater investigati inn of the diesel tank area and <br /> remediation of contaminated soil in the gasoline area, is currently being prepared and will <br /> be submitted to the PHS/EHD by January 14, 1994. <br /> i <br /> We expect future work at the site to remain on a titnely schedule. The PHS%EHD will be <br /> notified at least 48 hours in advance of any work at the site. If the proposed schedule is not <br /> 1 <br /> i <br /> Full Spectrum Environmental Services• 111 ydrogeology <br />