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I <br /> 1P-26-1905 11:iEPri FRGS W= TU 4640:3B P.a: , <br /> SEMCO E` <br /> E TVIROM MN'TAL&t'aCHERAL ENGMt TNr-CONTRACTOR <br /> TAC 7=k 4498"A.B.CSVD44,PAZARDOtl5 CERTIMCAT7OM 1 <br /> L'17 Ser.7dt MMM MODUTO,CAL7WORMU 95751 0n9)SZ4*W <br /> (209)524-%53,FAX*(20 )524-0505 j <br /> Ornobc 25, 1995 <br /> Mike hlfnma,Smior RE13S <br /> Site Mingaoco 1kd1 <br /> San Joaquin Comty <br /> EnYMOMMIensal Health Diviaco <br /> P.O.Box 389 <br /> Stoekma.CA 95201-0388 F <br /> Re: Langston Arco. 15615 S.Seveaffi St,hahrop,CA 95330 <br /> Subject: Proposed Handling of SilmSedimmts From Stored Ground Weser <br /> Dees Micbacl, ' <br /> As you Imm,dorms remediatim ac6viaes at the above referenced site it was necessary m pump <br /> grocadwner to facthtere excuvanon of emta rammed soil The venter was placed m abovegromd <br /> wase storage tanks.processed per the sysrtm dia_ provided to you on September 1,1995,mud <br /> sobaequmtly dischsrped to sanitary few=. <br /> As we completed me proemamit of the comtatamated water the mdividual smraae tanks were tilted, <br /> rinsed and pined lam teak fA(see site An. of September 8,1995). The silts were allowed to <br /> settle from the=at liquids and the water was processed.sampled,and discharged to sanitary sewer 4 <br /> as approved by city of Mmtecs.and CDy of Lathrop. The remams of the process we the <br /> sihsisedimma in the boumm of t=k 0,,4. All ptmapable hquLos have bac rtmoved Attached please <br /> fine tmalyucal data reprtamteuvc of Eris martial. Doe to the low levels observed Stmeo proposes <br /> ro mmare the tack in such a mmtner that the silts can flow from as opmmg m the tank The material <br /> would then be spread oo-site and allowed to dry. Final ciesain;of the storage tank would be <br /> peiformed by rmshtg-AD dreamer would be contented,and procmcd for disposal. <br /> in as roam as we me nym8 to demobilize all of the equipment from the site your earhea atterrom to <br /> this matter would be epproc elo& 1f you have auy quemons or need furdow mformanoo please SAN�A VIN COUNTY <br /> z(209)52a 96s�. PUBLIC HEALTH SERVICES <br /> Sincerely, RMIRONMENTAL HEALTH DIVISION <br /> f P.0.BOX 2009, STOCKTON,OA 95021 <br /> PHONE: (209)468-3420 i <br /> Drug FlammGlt' �(Approved <br /> Opaecana Manager, <br /> 0 Approved with changes:See Remarks <br /> O Disapproved; See Remarks <br /> Remarks <br /> Date /d 3/ By <br /> Approval of these plans extends only to that <br /> which is shown and described hereon but <br /> does not authorize or approve any omission <br /> or deviation of requirements of State laws or <br /> :local Ordinances. <br />