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1 <br /> EAI; - <br /> _ `: - 1 <br /> ' 07 <br /> - <br /> d S . <br /> a c ^ <br /> CONDOR EARTH TECHNOLOGIES INC. <br /> 1125 No. Golden S tate Blvd.. 21663 Brian.Lane'.. r <br /> - L - Suite H if P.O. Box 3905 <br /> July 2$, ;a:19 9 3 PO:Box 3448 ;Sonora, CA 95370 <br /> - Turlock, CA 95381 _ (209)532-0361 <br /> _ _ (209)688-9234- . _ - FAX(209)532-0773 <br /> -Mr. Mike Collins .- - - FAX(209)'668-9248 <br /> n <br /> San Joaquan County _ - - <br /> - Environmental -Health Division <br /> P.O: Box 2009 <br /> Stockton, CA_ 95201. <br /> RE: Soil Analytical- Results, Mataga -Olds/Buick, !'88T0 ,S,_Becla an <br /> ' = Road, Lodi, ­California. <br /> x - - - - - <br /> Dear Mr. Collins: - - <br /> This letter report describes the, re-_samplin of an <br /> g : <br /> �underground. storage tank over-excavation located .at 880 S r a <br /> Beckman Road in Lodi California (Figure 1) 'k- Th <br /> ,` e re-sampling was <br /> conducted as-requested by the San Joaquin 'Caunty. :Environmental- . T <br /> Health Division to analyze :the .,soil for chromium.=(Cr)' -using they° " <br /> waste extraction test (WET)' method. Previous sampling of the — ' <br /> excavation--showed total -Cr .;concentrations- iii- the soil ranging a <br /> 3 from 5 . 0-, to 10 mg/kg (see Tank :Pull TestinglResul-ts, dated = - <br /> F <br /> 6/19/91, acid-Over--Excavation Report, dated 6/15 793',' preparedi by <br /> Condor) ..- The latest sampling was .conductedl-by Condor for oil- <br /> Equipment <br /> il Equipment Service, San andreas -ACa-lifornia ��This-_'-report includes <br /> descriptions ,of the soil sampling and -laboratory aria lyses _ <br /> conducted during the investigation. - s- - <br /> On July 12, .1993; a Condor representatives <br /> samples, from the excavation at the site (see -Figure 2, for. <br /> sampling locations) . No apparent '.petroleumjstaining or odors <br /> were noted in-the soil . Each sample -was col-lect'ed by_-driving .a <br /> clean brass tube into=freshly exposed. soil. at a depth of <br /> approximatelg='10'.5 tom ll' feet belowthe "ground surface: 'The'F <br /> samples were sealed with teflon tape, capped-, wrapped-with duct.. 7 g <br /> tape, labeled, and placed -i-.n a cooler chilled- with Blue. Ice .for <br /> delivery under chain-of-custody procedures to_GeoAnalytical `.! <br /> - Laboratories -in- Modesto_, ._California;for' ana'lyse's <br /> - � y .. <br /> Mq <br /> The soil _samples were `analyze_d`- as directed by San Joaquin-- <br /> County for 'Cr :using the WET- method• (7190) and de:L. ionized water <br /> for extraction. Cr was not detected in the-isoil .samples using <br /> the WET method at or 'above the laboratory detection. limit. See <br /> Table 1. below for- laboratory. results . - = -- <br /> ENVIRONMENTAL • _ 'GEOLOGICAL �? _ =: ENGINEERINGGEOTECHNICAL _ ' <br />