ARCHIVED REPORTS XR0002714 - Laserfiche WebLink

Home Browse Search

? '. 8 Noverr be'r•2002 i `AGE,NC Project•No:•98-0504:' � ! Page2of5 'Soil'samples were preserved by covering both ends.of,the second,brass sleeve with•Teflon sheets, capping and sealing with tape..Each preserved sample sleeve was labeled soil boring location;` depth, time, date.and sampler's initials and wasfstore& in a chilled conta' er under ice. Soil samples retheved'from the borings were visually classified on ab oring log by,an AGE-geologist in accordance'with the Unified Soil Classification Systerri (USCS); the-soil boring'log is provided 1 r in Appendix A.. Additionally, the soil samples were fiefd=screened for the'presence of volatile " organic compounds using an organic vapor meter(OVM)-equipped with a photo-ionization detector (FID:Thermo Environmental 580A, 1.0.0 eV,calibrated io isobutylene);the concentration readings were recorded on the boring log. 2.3. GRAB GROUND WATER COLLECTION At the total depth of the probe borings, -a grab ground water sample was collected utilizing a Geoprobe water sampling assembly fitted with a pre-cleaned one-inch diameter 0.01-inch slotted temporary well screen.The groundwater sample was extractedby lowering a Teflon hose equipped - with a ball-valve through the hollow center of the push rods into the screen section.The sample was ' collected in three EPA-approved 40-m1 VOA vials containing 0:5 ml 18% hydrochloric acid as'a. sample preservative. The collected ground water samples were labeled with the boring designation, date, time,,and sampler's initials and placed in a chilled container under ice.. 2.4. LABORATORY ANALYSIS OF SOIL AND GRAB-GROUND WATER SAMPLES The grab ground water sample and selected soil samples were transported under chain-of-custody procedures to Cal Tech Environmental Laboratories, a California Department of Health Services . 1 (DHS)-certified laboratory, for analyzed for: • Total petroleum hydrocarbons quantified as gasoline.and diesel• (TPH-g and TPH-d) in ' accordance with EPA Method 8015 Modified; and • Benzene,toluene,ethylbenzene and xylenes(BTEX)and methyl tertiary-butyl ether(MTBE) ' ' in accordance with EPA Method.8021. ; • The -fuel additives.MTBE; di-isopropyl ether. (PIPE), ethyl tertiary-butyl ether-(ETBE), ' tertiary-amyl methyl ether(TAME},tertiary butanol(TBA), ethylene dibromide(EDB)and ' 1,2-di6hloroethane(1,2-DCA) in accordance with EPA Method 8260B. In addition,ground water sample B5 was analyzed for volatile organic compounds utilizing full scan EPA Method 8260. ', Advanced Geo Environmental,Inc.