Laserfiche WebLink
�•- 1r yr <br /> { KLE1NfElOER <br /> t <br /> t <br /> 1 E UZUn E SUMMARY <br /> f� J*1987,East�► Udit District(EBMUD)removed a>~�i� n regular <br /> contained <br /> ` The storage tank was <br /> �der�o�und storage tank from its Stockton Yard. <br /> p led sod beneath the <br /> r .. L... my 29 1987. Aswciates <br /> � w is s On J results from the <br /> a -xvcistn; u swth ends of the LOtmer:tora8a tank. AaalYtieal <br /> oemeat vwtt Soot nor Of Ue constituents <br /> sam* &M the ev..:end Ot the rink indicated the preserue gaso <br /> "r <br /> Frf <br /> detection r"Y • ;� above the method limit:. <br /> In� at UK )elder prepared a soli and ground water assessment workplan to <br /> a <br /> ft Prue=of Psolim consdamms is the sod and ground water at the EBMUD <br /> in direct response to a requ=t from Cottle <br /> r•�z ,< Sod=fac�ity. 1be.Mockpian.vas prepared <br /> - - g at AUdocb,Cali6oVja. On September 30, 1988 EBMUD received approval District S JUM) to �lemen; the scope-of work <br /> ,.r9 from the Son Joaquin Local Haft <br /> o in the K1czWdet bm- In April 1989,IQeinfelder received authorization to <br /> proobed with the scope-d-Wort approved by the SIS• In May of 1989, lCeinfelder <br /> MOW im caplocatorp son borings and dulled and installed three ground water <br /> Sa were co�lected m eachWCUL <br /> of the soli <br /> borings and selected;;: <br /> :, :5 saaotples were analyzed for total-bydrO "aa&Qb ine,Monitoring 1. <br /> xY <br /> •��r� EDB and ot�laic lead. Gasoline eo»ssime�s <br /> were detected in sobs collected from borings � <br /> 'The second sampling was completed on October <br /> 4 1989. <br /> Ground water momuwmg wells were developed and initially sampled apprwonmMlY two <br /> Ground water samples were sent to a State certified laboratory for <br /> weeks ages completion. <br /> analyses. Ground water samples from the two up-gradient wells(MW-2 and Mw-3)were <br /> of the Quad water <br /> none detected for total hydrocarbons and BTEC. However, analyses gr <br /> samples from the dovmVadiern monitoring well (MW-1) detected total hydrocarbons at <br /> 4,300 ugA benzene at 254 ug/l,ethyl benne 30 ug/1 and xylenes at 280 ug/1 from the first <br /> hydrocarbons <br /> °'A`•`'I sampling(June 1989 en <br /> and benzene at 382 u9A xylenes at 151 ug/1 and total <br /> 1989 <br /> tis at 574 ug/1 from the second sampling(October )' <br /> ;• g <br /> } 1'he gel=al direction of ground water flaw appeals to be to the southwest. Based Oa the <br /> w. gtounJ water now direction and analytical results from ground water sample,Klainfelder <br /> t i believes .hat as on-sits source for the hydrocarbons detected m the ground water Is <br /> J indiatel(L <br /> EBMUD-001-89-001 1 <br />