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*86 EAST BEAN ER STREET <br /> WEGE ESTERN WOODLAND, CA 95776-6003 <br /> GEO ENGINEERS FAX (916) 662.0273 <br /> CALIF CONTRACTOR #513857 A CORPORATION (916) 668-5300 <br /> REGISTERED GEOLOGISTS <br /> Mt Latry Williams September 15, 1998 <br /> Senim Envumirriental Control Officer s~n <br /> City of Stoukton <br /> Dept of Municipal Utilities �? <br /> 2500 Navy Dt ive <br /> Stockton, CA 95206 <br /> (209) 944-5722 3 _t <br /> 1t13 Wastc,watei Discharge Permit UPDA-m 1135 for Wickland Piopcitics site It603, [ocated it <br /> 6425 Pacific Avcnuc, Stockton, California <br /> Dcai Mi Williams <br /> Ihis ICtet is the Update Status IZCpoit 435 concerning the above wastewatei disc,halgL, permit No <br /> disc,haigc occurred during the month ofAtlgust 1998 <br /> SPILL 1112E V1 N PION PLAN <br /> As icgU11ccl by the Wastc.watci Discharge Permit 1oi this site, a spill plevulltlon plan has been <br /> piepated <br /> I lie waste ~(team is treated gioundwatci condensate pioduccd from the vapor extraction of monitor <br /> wells MW 1 M W2, M W3, and M W I O, and the pinged water pioduccd dui ing the quai telly glotrtld <br /> water samplim, ofall the "vclls associated with this site <br /> Law,cnee lank Testing's (LT'F) vacuum pump scrvicc uses thc.0 vacttuill pump to pull the water <br /> 110111 UIC MAI',, through dedlc.ated one rnc.li Sc,h 40 PVC pipe, into a 100 gallon stainless stecl tank <br /> 1111s watei is then transferred to the "ConVault" for ticatrnent by "tank aeration", with the vapol <br /> destiuctlon ac,coniplished using an stripping with activated carbon adsorption `I lie carbon is also <br /> c011(lullently destroying vapor being pulled from the soil LTT has, for the tinic being, stopped <br /> (August 1991)) [)urging monitor wells MWI, MW2, MW3, MWS and MWIO We aic still placing <br /> the condensate watet produced horn the vapor extraction system into the "ConVault" 101 vacuuin <br /> stlipping ticatlllent <br /> 1 IZ-603 WNA11135 9/15/98 <br />