Laserfiche WebLink
. 07 January 1997 <br /> AGE-NC Project No 96-0266 <br /> Page 4 of 6 <br /> the other probe borings Four additional probe borings will be established in the vicinity of Building <br /> 1,the metals plating shop All probe borings will be advanced using AGES Geoprobe 5400 probing <br /> unit equipped with 1 125-inch probe rods The proposed probe boring locations are illustrated in <br /> Figure 2 <br /> Soil samples will be collected at five-foot intervals using a Geoprobe sampler and four brass sleeves <br /> Upon sample retrieval,the second brass sleeve will be removed from the sampler The ends of the <br /> sleeve will be immediately covered with Teflon tape or aluminum sheets, capped and sealed with <br /> tape Each soil sample sleeve will be labeled with the following boring location, depth, time, date <br /> and sampler's initials Grab ground water samples will be collected from selected probe borings, <br /> using a Geoprobe water sampling assembly Each water sample will be uniquely labeled with the <br /> following boring location,time, date and sampler's initials After collection, samples will be stored <br /> in a chilled container and transported to a State-certified laboratory <br /> 5 2 EQUIPMENT DECONTAMINATION <br /> • All sampling tools and brass sleeves used for sample collection will be thoroughly rinsed with clean <br /> water after washing with a solution of Alconox All Geoprobe rods are cleaned prior to advancement <br /> in each probing location <br /> 5 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 Selected soil and ground water samples collected <br /> from the vicinity of Building I, the metal plating shop, will be analyzed for the following metals, <br /> cadmium, chromium, nickel, lead and zinc in accordance with EPA method 6010 If soil samples <br /> are in excess 150 ppm of lead or five time the total threshold detection limit of any of the metals,the <br /> sample will also be analyzed by a STLC (soluble threshold limit concentration) extraction in <br /> accordance with California Title 22 and EPA methods 6010 <br /> Laboratory reports of both soil and ground water analysis, testing methods, laboratory quality <br /> assurance/quality control (QA/QC) reports, and sample chain of custody documentation will be <br /> presented in a report with the findings and recommendations <br />