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State Neater Resources Contro�toard ; <br /> Division of Clean Water Programs <br /> Winston H.Hickox 1001 1 Street-Sacramento,California 95814-(916)341.5796 <br /> Secreta or Mailing Address: P.O.Box 944212-Sacramento,California-94244-2120 Gray Davis <br /> f <br /> Environmental FAX(916)341-5806-Internet Address: http://www.swrcb.ca.gov/cwphome/ustcf Governor <br /> Protection - <br /> December 11, 2002 <br /> DEC 2 0 Z�b2 <br /> Manuel &Mary Sanchez <br /> 1633 W Walnut StreetNVIROtd�v;t ;VICES <br /> Stockton, CA 95203 ��R1i�1�1SC R <br /> PRE-APPROVAL OF CORRECTIVE ACTION COSTS, CLAIM NO. 1026, <br /> SITE ADDRESS: 1876 COUNTRY CLUB BLVD, STOCKTON <br /> I have reviewed your request, initially received on September 10, 2002, for pre-approval of <br /> corrective action costs. I have included a copy of the "Cost Pre-Approval Request" form;please <br /> use this form in the future for requesting pre-approval of corrective action costs. <br /> With the following provisions,the total cost pre-approved as eligible for reimbursement for <br /> completing the work associated with the December 2, 2002, cost estimate by Western Geo- <br /> Engineers (WEGE), is $105,102. The costs associated with the piezometer installation, pl <br /> test monitoring well iezometer, and recovery well abandonment over-excavation and air <br /> sparge/vapor extraction piping, are re-a roved for the amount shown above see the table <br /> below for a breakdown of costs). <br /> COST PRE-APPROVAL BREAKDOWN <br /> # Task Amount Pre-Approved Comments <br /> 1 Install 4 temporary piezometer 7,277.35 <br /> wells. <br /> 2 Conduct pump test according to <br /> specs of 10-14-2002 Workplan 11,668.25 <br /> Addendum. <br /> 3 Destroy 1 monitoring well,4 <br /> piezometer wells, and 2 recovery 7,814.95 <br /> wells. <br /> 4 Dewatering of excavation. 9,782 <br /> 5 Remove,characterize, and <br /> stockpile contaminated soil; install <br /> air sparge/vapor extraction piping; 68,559.55 <br /> and backfill and resurface <br /> excavated area. <br /> TOTAL PRE-APPROVED $105,10 <br /> California En vironment2l Pro tecdon Agency <br /> Z4' Recyc%dPBper <br />