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6-32-1998 1 22Pt 1 FRO Z P 2 <br /> W. CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CaI/EPA <br /> • — - CENTRAL VALLEY REGION <br /> 3 <br /> � 3443 Routier Road,Suite A <br /> Sacramento,CA 95827.3003 <br /> Phone(916)255-3000 <br /> FAX(916)255-3015 J�:'� ' 1 { f 1'ctc W�1sor�Covernw <br /> 26 May 1998 <br /> Ms Margaret Lagorio <br /> San Joaquin Count) Environmental Health Division <br /> 304 E 'Weber Avenue, Third Floor <br /> Stockton, CA 95201-0388 <br /> PROPOSAL TO DELAY NO FURTHER ACTION REQUIRED DECISION,FRANK'S EXXON <br /> #4,14800'W. FRONTAGE ROAD(HWY. 99), MANTECA, SAN JOAQUIN COUNTY <br /> On 29 April 1997,we received your letter recommending"No Further Action Required" for the above <br /> site. After reviewing our files and discussing this site with you on 7 May 1998,we have determined that <br /> significant remediation has occurred at this site However, we are concerned there is no documentation <br /> that the remaining contamination will remain below the maximum concentration limit (MCLs) in the <br /> new and proposed domestic wells Therefore, we recommend delaying issuance of a"No Further Action <br /> . Required"letter until the following issues are resolved <br /> • Determine the amount of remaining contaratnation on-site, <br /> • Estimate the concentration ofcontartimants that may impact the on-site domestic veli, <br /> • Obtain information concerning the location,and construction details of the proposed trailer <br /> park domestic Nvell,and estimate the concentration of contaminants that may impact this <br /> well, and <br /> • Explain why conditions rernairung at.his site will not adversely impact water quality,health, <br /> or other beneficial uses <br /> If you have any questions,please call me at(916)255-3128 <br /> f44�. 1144� <br /> PATRICIA A. ANDERSON <br /> Enclosures <br /> Arcyakd Paper Our nr,srcn rz to prererw and eAhaoce the palay o1 calijurnea'r rsvrrr revu-mv and <br /> ,-„-­rrb-..—. —F-ft.. r----._4 A .��_.._.r_... <br />