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3TATE OF CALIFORNIA-Environmental Pro' on Agency PETE WILSON, Governor <br /> CALIFORNIA REGIONAL WATER QU LITY CONTROL BOARD <br /> CENTRAL VALLEY REGIONON-yrs i A 1 _ <br /> 3443 Routier Road, Suite A / ! , : <br /> Sacramento, CA 95827-3098 .' iii �, � �- 1 j{ <br /> PHONE: (916) 255-3000 )F�' a,�. <br /> FAX: (916) 255-3015 a SEP 16 P14 r� <br /> 13 September 1993 <br /> Robert Isackson <br /> Village Properties <br /> 703 Market St. <br /> San Francisco, CA 94103 <br /> REQUEST FOR MORE INFORMATION,ROYAL OAKS SAVINGS & LOAN, 510 N MAIN ST, <br /> MANTECA, SAN JOAQUIN COUNTY <br /> Thank you for sending the report "Insitu-Treatment Soil Gas Extraction" dated 15 June 1992. <br /> Unfortunately, it did not include all necessary information to complete site closure. You must <br /> submit a mass balance of the amount of contamination removed with the vapor extraction system, <br /> and estimate what fraction of the soil contamination was removed. This is thej?only way to evaluate <br /> the effectiveness of the vapor extraction system. When this information has,been submitted, I can <br /> complete site closure. I have included a checklist which may assist you. <br /> If you have any questions, please call me at (916) 255-3119. <br /> JEFF BRAUNSTEIN <br /> Project Engineer <br /> Enclosure <br /> cc: /Mar-garet Lagorio, San Joaquin County Environmental Health, Stockton <br />