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Former Cheaper Store Nu`mber'37 Page 2 <br /> 15 East Grant Line Road October 22, 2009 <br /> Tracy, California 95376-2720 <br /> groundwater samples will be,collected from separate boringsadvanced adjacent to the <br /> CPT boring. The EHD approves ";the collection of depth _discreet grab groundwater <br /> samples at approximately forty to forty-five-feet and sixty-five to seventy feet bsg based on <br /> the soundings for CPT-1 and CPT-2. Considering=the close proximity of CPT-2 to the two <br /> proposed boring locations, the: EHD_does not think it necessary to advance-a third CPT <br /> boring for logging purposes prior to collecting the-two proposed grab groundwater samples <br /> from the two main sand units. <br /> ATC proposes to.`analyze selected soil and groundwater samples collected during this <br /> investigation and semi-annual/biennial groundwater sampling events for total petroleum <br /> hydrocarbons quantified as gasoline. (TPH-9)'or gasoline range organics (GRO); benzene, <br /> toluene, ethyl benzene and'total xylenes(BTEX); MTBE,.tertiary-butyl alcohol (TBA), and <br /> tertiary-amyl methyl ether(TAME). The EHD approves-this analytical list. <br /> Submit a 'boring permit application and permit/inspection fee of$454 to the EHD; notify the j <br /> EHD at least -a week prior to- the scheduled fieldwork;.and..-complete.the fieldwork by <br /> January 22, 2010., Please contact Vicki McCartney,at' (209)4468-9852, or by e-mail' at <br /> vmccartney(7sicehd..com if you have any questions concerning this letter. <br /> Sincerely, <br /> Victoria L. McCartney, REHS Nuel C. Henderson,Jr., PG <br /> Registered Environmental'.Health Specialist Engineering.Geologist <br /> c: Mr. Nathan Christman, PG; ATC Associates Incorporated, 1117 Lone Palm Avenue, <br /> Suite-201, Modesto, California 95351 <br /> Mr. James L.L. Barton, PG, California .Regional Water Quality Control Board Central <br /> Valley Region, 11020 Sun Center.-Drive, Suite 200,`Rancho Cordova;-California 95670 <br /> i <br /> i <br /> i <br /> i <br />