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SECOR <br /> • Inlo n( monal Incorpo)riled <br /> May 10, 2001 <br /> Mr Marty Hartzell <br /> California RWQCB Central Valley Region <br /> 3443 Routier Road, Suite A <br /> Sacramento, CA 95827-3098 <br /> Subject: Work Plan for Additional Groundwater Assessment <br /> Ranch Market <br /> 23569 South Santa Fe Road <br /> Riverbank, California <br /> SECOR Project No. 077.42083.008 <br /> Dear Mr Hartzell <br /> SECOR International Incorporated (SECOR), working on behalf of Mr Durhim Ali Juban, <br /> submits this letter as a work plan for groundwater assessment at the Ranch Market Site located <br /> at 23569 South Santa Fe Road in Riverbank, California (Figures 1 and 2, Attachment 1) <br /> REGULATORY REVIEW & DIRECTION <br /> This work scope will be conducted in response to a May 3, 2001, meeting with Regional Water <br /> Quality Control Board, Central Valley Region (RWQCB) The RWQCB requested the <br /> assessment include the following <br /> • Further definition of the lithology between the former underground storage tank <br /> (UST)pit and DW-3 and DW-4, and east of the site across South Santa Fe Road <br /> utilizing Cone Penetrometer Testing (CPT), <br /> • Vertical distribution of gasoline range petroleum hydrocarbons dissolved in <br /> groundwater between the former UST pat and DW-3 and DW-4, and east of the <br /> site across South Santa Fe Road (Figure 2), <br /> • Monitor depth to bottom in offsite domestic wells DW-3 and DW-4, <br /> File Ranch MarketlWorkplan\Rb-CPT Workplan doe <br /> 3017 Kdgore Road Mile 100 Rambo Coidorrl 0 95670 916 �vOl 0400 W6861 0430 fai uuu wcol Lona <br />