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•1 <br />16 April 1997 <br />AGE -NC Project No 95-0121 <br />Page 9 of 9 <br />3 Boring locations will be marked at least 48 hours in advance for an Underground Service <br />Alert (USA) check of underground utilities or pipes <br />4 Advance approximately three soil borings to a total depth of approximately 35 feet bsg <br />utilizing a van -mounted Geoprobe equipped with 1 125 -inch probe rods <br />5 Decontaminate all sampling equipment in an alconox solution and rinse twice with water prior <br />to each sampling run Steam -clean auger flights before advancement of each boring <br />6 Soil samples will be collected at five-foot intervals beginning at 10 feet below site grade (bsg) <br />using a Geoprobe soil assembly and associated 1125 -inch diameter brass sleeves The middle <br />brass sleeve will be removed and the ends covered with Teflon tape or aluminum sheets, <br />sealed with plastic end caps, secured with tape, and immediately placed in a chilled container <br />Each sample sleeve will be labeled with the following boring location, depth, time, date, <br />sampler's initials, and transported to a state certified laboratory <br />7 Store the samples under ice and transport the samples in a chilled ice chest to a State certified <br />laboratory for analysis Screen soil sample duplicates for the presence of volatile organics <br />using a photo -ionization detector (PID) pre -calibrated to isobutylene Selected soil samples <br />. will be analyzed for TPH-g, TPH-d, BTE&X and MTBE in accordance with the appropriate <br />EPA methods <br />44 REPORTING <br />As remediation of hydrocarbon impaction at this site is implemented, quarterly reports will be <br />submitted to the PHS-EHD and the CVRWQCB The quarterly reports will include analytical results <br />and field readings, and report remedial progress at the site Quarterly reports will be reviewed and <br />signed by a California Registered Geologist <br />