Laserfiche WebLink
a <br /> ATTACHMENT A <br /> FIELD AND LABORATORY PROCEDURES <br /> Collection of Soil Samples <br /> Soil samples were collected using 2-inch diameter brass sample liners from undisturbed <br /> soil removed from the excavation by a backhoe bucket When possible a slide hammer <br /> lined with 2-inch diameter brass sample liners was used The soil samples were retained <br /> in the brass liners and capped with Teflon® sheets and plastic end caps The samples <br /> were then labeled, placed in sealed plastic bags, and transported on ice to the analytical <br /> laboratory, accompanied by the appropriate chain-of-custody documentation <br /> Laboratory Analyses <br /> Selected samples were analyzed for the presence of total petroleum hydrocarbons <br /> calculated as gasoline (TPH-g) by EPA Method 8015 modified and benzene, toluene, <br /> ethylbenzene, and xylenes (BTEX) by EPA Method 8020 Samples were analyzed for <br /> the presence of fuel oxygenates including methanol, ethanol, tert-butyl alcohol, methyl <br /> tert-butyl ether (MtBE), di-isopropylether (DIPE), ethyl tert-butyl ether (EtBE), and <br /> tertiary amyl-methyl ether (TAME), by EPA Method 8260 Soil samples from <br /> overexcavation were also analyzed for 1,2-Dichloroethane (1,2-DCA) and ethylene <br /> - dibromide (EDB) Stockpile samples were analyzed for total lead using <br /> EPA Method 6010 A California State-certified analytical Iaboratory performed all <br /> laboratory analyses <br /> — IT CORPORATION <br /> SAC\\\SACRFPI\COMMONIrancfPI\ProJectslProlects1880\040\8800401A as doe-Mmem 1 <br /> A-1 <br />