Laserfiche WebLink
06 June 1997 <br /> AGE-NC Project No 96-0254 <br /> Page 4 of 5 <br /> 2 Notify the PHS-EHD 48 hours prior to commencement of any work, while securing proper <br /> county soil boring permits <br /> 3 Mark probe boring locations at least 48 hours in advance for an Underground Service Alert <br /> (USA) check of underground utilities or pipes <br /> 4 Install eight probe borings, using a van-mounted Geoprobe equipped with a 125-inch <br /> diameter probe rods and a 2-inch diameter soil sampler Borings will be advanced to depths <br /> of approximately 15 feet Piobing locations are illustrated on Figure 2 <br /> 5 Decontaminate sampling equipment in an Alconox solution and rinse twice with water piior <br /> to each sampling run <br /> 6 Obtain discrete soil samples at five foot intervals using a Geoprobe macro core soil sampling <br /> assembly loaded with a Teflon liner <br /> 7 Preserve soil in the liner by covering both ends of the desired depth of the linei with Teflon <br /> sheets, capping, and sealing with tape Label and log samples on a chain-of-custody forni <br /> 8 Screen soil sample duplicates for the presence of volatile organics using a photo-ionization <br /> • detector (FID) pre-calibrated to isobutylene <br /> 9 Log borings in accordance with the Unified Soil Classification System <br /> 10 Collect six ground water samples Ground water samples will be collected from selected <br /> probings using a Geoprobe water sampling assembly Samples will be collected in 40-m1 <br /> VOA vials, labeled and placed in a chilled container, under ice <br /> 1 I Backfill each probing using a concrete-bentonite slurry in the entire depth of the probing <br /> 12 Selected soil and ground water samples will be transported to a state-certified laboiatory and <br /> analyzed for total petroleum hydrocarbons quantified as gasoline (TPH-g), volatile aiomaties <br /> (benzene, toluene, ethyl benzene and total Xylenes BTE&X) and methyl tertiary butyl ether <br /> in accordance with the appropriate EPA methods <br /> 5 2 INSTALLATION OF GROUND WATER MONITORING WELLS <br /> Monitoring wells at the site will installed by the procedures outlined in the Site Contamination Work <br /> Plan dated February 1995 <br /> • <br />