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MINVO � .w, r <br /> x <br /> Standard Operating Procedures <br /> SOIL BOI'•INGS AND SAMPLING <br /> Soil borings are lithologically logged by Parker staff under the direction and supervision of <br /> stem <br /> a state-registered geologist using the Unified Su't1ro Classification <br /> i1 a 5 0 foot d p l intervals to the <br /> drilling,discrete soil samples are collected at app .c description and passible chemical <br /> top of groundwater for lithalagic and hydrogeologt <br /> analysis. <br /> Sail Samples for chemical analysis are collected in pre-clew red,Nn-*,vallcd brass tubes,G- <br /> Cal fotnia split-barrel sampler. The split-barrel <br /> inches long and 2-inches n the outside diameter. '[hrcc of these sample tubes are set to a <br /> inch inside diameter, 18-inch modified a drop hammer,typically 140 pounds. The sampler <br /> sampler is driven its entire length using les are removed. <br /> Is extracted from the borehole and the brass tubes. ajely after <br /> the soil lamp <br /> The third soil sample is screened in the field 11711 r►eodta photoionrizadon ddeteetrieval of ctor ro�iD)} For <br /> sampler Using, organic vapor analyze <br /> lnc.Standard operating <br /> procedures,please refer to the Parker Environ <br /> mental Consultanu,Soil sampling is <br /> 1°rocedures for Collecting Organic Vapor Data from Soil Quali Control Board(R\N'QCB) <br /> Tri- <br /> pe in accordance with California Regional Water Quality Field Manual,the Trt- <br /> procedures described in the Leakir:g Underground Fuel Tank(LUFT} <br /> Regional Board Staff Recorn n�ionsfo re MgulatOry line F'�alirarran and lrtresrigatran of <br /> Underground Tank Sires,an <br /> s. <br /> Uthe selected brass tubes are i <br /> Upon removal from the sampler, cdiately capped <br /> ends with Teflon tape,trimmed and capped with plastic caps: The <br /> on both openlock plastic bags. <br /> samples are then labeled and glace in individual see-through d ice to to <br /> The samples are stored in an ice chest thermometr is kept n the ice chest to ensure <br /> temperature of 4 degrees The sample.are then delivered under <br /> that the proper temperature is main eria's testing laboratory. <br /> chain-of-custody to a state-certified hazardous the <br /> otential for cross-contamination and <br /> The above mentioned procedures minimize d1e P dor to chemical analysis. <br /> volatilization of volatile organic compounds Cv�)P <br /> The sampling equipment is cleaned_cleaned wit° he other ndrilling equipmet wash and two nt benee n water <br /> rinses between samples and.steam <br /> borings to prevent cross-contantination. <br /> CA 94565.8118 <br /> Parker EnvEtonmenhons e (415)8,4398 024Rialto <br /> F Fax (415) 43z*-2566 <br />