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1%./ NWO, 17 July 1997 AGE-NC Project No. 97-0324 Page 5 of 6 1. Prepare a site health and safety plan in accordance with Occupational Safety and Health Guidance Manual for'Hazardous Waste Site Activities (Prepared by National Institute for Occupational Safety and Health Administration,U.S. Coast Guard and U.S. Environmental Protection Agency, 1985). 2. Notify the PHS-EHD 48 hours prior to commencement of any work, while securing proper city/county soil boring permits. 3. Boring locations will be marked at least 48 hours in advance for an Underground Service Alert (USP.) check of underground utilities or pipes. _. 4. Advance three probe borings using a van-mounted Geoprobe equipped with a 1.125-inch diameter probe rods. Probe borings will be advanced to depths of 25 feet bsg. Probe boring locations are illustrated on Figure 2. If field conditions indicate that impacted soil and or ground water is present, additional probe borings may be advanced. 5. Decontaminate sampling equipment in an Alconox solution and rinse twice with water prior to each sampling run. 6. Obtain discrete soil samples at five foot intervals beginning at five feet using a Geoprobe soil sampler assembly loaded with and a two-foot polyethylene soil sampling sleeve. 7. Preserve a section of the sleeve by covering both ends with Teflon sheets, capping, and sealing with tape. Label and Iog samples on a chain-of-custody form. 8. Collect a ground water samples from each probe boring. The ground water sample will be collected using a Geoprobe water sampling assembly. The samples will be collected in 40- ml, EPA approved VOA vials or preserved plastic containers. 9. Store the samples under ice and transport the samples in a chilled container to a State- certified laboratory for analysis. 10. Screen soil sample duplicates for the presence of volatile organics using a photo-ionization detector (Pl D) pre-calibrated to isobutylene. 11. Log borings in accordance with the Unified Soil Classification System. 12. Backfill each probe boring using a cement slurry in the entire depth of the probing. 13. Selected soil samples and ground water samples will be analyzed for total petroleum hydrocarbons Quantified as gasoline (TPH-g), volatile aromatics (benzene, toluene, ethyl benzene and total xylenes: BTE&X) and methyl tertiary butyl ether(MTBE) in accordance with the appropriate EPA methods. If field observations indicate that other petroleum hydrocarbons are present, additional analysis may be necessary. 14. Selected soil samples collected may be analyzed for the following metals; cadmium,