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1 <br /> C <br /> . 30 October 1996 <br /> AGE-NC Project No 96-0266 <br /> Page 3 of 4 <br /> in each probing location <br /> 3 3 LABORATORY ANALYSIS <br /> Selected soil and ground water samples will be analyzed for total petroleum hydrocarbons quantified <br /> as gasoline (TPH-g), volatile aromatic hydrocarbons (benzene, toluene, ethyl benzene and total <br /> xylene BTE&X) and methyl tertiary butyl ether (MTBE) in accordance with EPA methods <br /> 801515030, 8201602 and 80201602, respectively Laboratory reports of both soil and ground water <br /> analyses,testing methods,laboratory quality assurance/quality control (QA/QC)reports,and sample <br /> chain of custody documentation will be presented in a report with the findings and <br /> recommendations <br /> 4 0. PROCEDURES <br /> 41 COLLECTION OF SOIL AND GROUND WATER SAMPLES <br /> • For the collection of soil and ground water samples, the following procedures will be performed <br /> 1 Prepare a site health and safety plan in accordance with Occupational Safety and Health <br /> Guidance Manual for Hazardous Waste Site Activities (Prepared by National Institute for <br /> Occupational Safety and Health Administration, U S Coast Guard and U S Environmental <br /> Protection Agency, 1985) <br /> 2 Notify the PHS-EHD 48 hours prior to commencement of any work, while securing proper <br /> 5 <br /> city/county soil boring permits <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 Initial,advance three probe borings using a van-mounted Geoprobe equipped with a 1 125- <br /> inch diameter probe rods Probe borings will be advanced to depths of 25 feet bsg Probe <br /> boring locations are illustrated on Figure 2 If field conditions indicate that impacted soil and <br /> or ground water is present, additional probe borings may be advanced <br /> 5 Decontaminate sampling equipment in an Alconox solution and rinse twice with water prior <br /> to each sampling run <br /> 6 Obtain discrete soil samples at five foot intervals, using a Geoprobe soil sampler assembly <br /> loaded with pre-cleaned 1125-inch by 6-inch brass sleeves <br /> • 7 Preserve soil in the second brass sleeve by covering both ends with Teflon sheets,capping, <br />