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L � <br /> 07 February 1996 <br /> AGE-NC Project No. 95-0162 <br /> Page 3 of 5 <br /> 3.4. LABORATORY ANALYSIS <br /> Selected soil and ground water samples will be analyzed for TPH-g, BTE&X and MTBE in <br /> accordance with EPA methods 8015/5030 and 8020/602, respectively. Laboratory reports of both <br /> soil and ground water analyses, testing methods, laboratory quality assurance/quality control <br /> (QA/QC)reports, and sample chain of custody documentation will be presented in a report with the <br /> findings and recommendations. <br /> Duplicate soil samples will be released to a State-certified laboratory to be analyzed for intrinsic <br /> permeability, moisture content and porosity in accordance with the. appropriate ASTM and EPA <br /> methods. <br /> 4.0. PROCEDURES <br /> 4.1. COLLECTION OF SOIL SAMPLES <br /> For the collection of soil samples, the following procedures will be performed: <br /> 1. Notify the PHS-EHD 48 hours prior to commencement of any work, while securing proper <br /> city/county soil boring permits. <br /> 2. 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 /> 3. Advance four soil borings, using a truck-mounted drill rig, and 8.25-inch diameter hollow <br /> stem augers. Four borings will be advanced to depths of 40 feet. Boring locations will be <br /> approved by the PHS-EHD prior to drilling. <br /> 4. 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 /> 5. Sample soil from each boring,- beginning at 5 feet bsg, utilizing a California split-spoon <br /> sampler and pre-cleaned 2-inch by 6-inch brass sleeves. <br /> 6. Preserve soil in the brass sleeve by covering both ends with aluminum foil or teflon tape, <br /> capping, and sealing with tape. <br /> 7. Store the samples under ice and transport the samples in a chilled ice chest to a State certified <br /> laboratories for analysis. <br /> 8. Screen soil sample duplicates for the presence of volatile organics using a photo-ionization <br /> detector (PID) pre-calibrated to isobutylene. <br /> 9. Log borings in accordance with the Unified Soil Classification System. <br />