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r ML rAUE 04 <br /> Amit 10, 1 tai <br /> 81h Problem Aaa6"awnt <br /> Oid-befts-90 9ixtf7 Street,Tracy,CA <br /> Project No. !4609-T, PH$-EHD Site Corte 2193 <br /> 43youndwajer Mon 4nDaella ding ' <br /> t:=ftonitortng well will be sampled. Each monitoring Wi ll will be purged using calculated we l <br /> Y*ffllea based upon the depth to vMer in each Casiro- Depth to groundwater measurements wolf be <br /> tviok`:to the nearer one-one hundm ttt of one foot, and also-cheated for the presence of separate <br /> pts product. AS each purge volume Is removed, measurer>Aents of pH, electrical condueuvity and <br /> temperature will be taken until these parameters stabilize.-which is interpreted to be aquifer water <br /> ertt$ting the oasirsg. The sample will be carefully collected:vvl a clean bailer and poured Into the <br /> appropriate laboratory prepared coMeinet with minimum cav WW, The procedure will use the same <br /> chain-of-custody and transport described above. <br /> Ch*MIoal Ar+alysla <br /> ti .40 3bt soil and six reconnaissance groundwater samples will be analyzed at a State certified analytical <br /> irlt itir�ory. Selected samples will be tented for the following; Total Petroleum Hydrocarbons as Gasoline <br /> (TMG), Total Petroleum Hydrocarbons as Diesel (TPHD), Serzone (11), Toluene M, Ethylbenzene (E), <br /> Xylene K, Methyl-tett-butyl-other(MTBE) and Fuel Oxygenateer(0)} and volatile Organic Compounds <br /> (VOC) using VA Methods 8015/8020 and 8240. The analysis will be done on s normal tum around <br /> basis. -....- <br /> Wponreview of the data, a sampling program will be assigned Aftha monitoring wells and accomplished <br /> at quarterly intervals or as directed by PHs3-EHO. <br /> P@arting <br /> *rt will be prepared regarding the estimated plume extent, results of the monitoring well Inataflst#on <br /> description of the wbwrface co dltions. One report wMt-be prepared after the work is done to <br /> pflMde the problem assessment roport. the report Will Inckidif.11old methods, exploratory boring legs, <br /> towel} oon9truction details, chemical analytical data geologies sass sections, and report nerrative. <br /> Conclusions and recommendations for quarterly monitoring and further work as warranted will be <br /> provided. D <br /> It you have any questions, please call. <br /> 81f1oerMy, <br /> WApht Environmental Services.Inc. 2 1282 <br /> CERTIFIED <br /> GEOLGGIST <br /> Debra Andars on Christopher M. Palmer q <br /> Operations Manager C. E.a. 1262 r OF CAO'3 <br /> Attachments Figure 1. She Map sketch with Proposed Boring Locations <br /> Attachment C-Wright Sampling Protocols <br /> 00; San Joetiwln County, Public Health 9avic"-Envimnmentel Hoehn►bMaion Sits Cods 2183 <br /> Joffroy Wong, ENS,Trainee <br /> TO'd ESTSEZ9602T 01 032) N3WIdd WOdd WdZZ:pa essT-oT-bO <br />