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Work Plan for Underground Storage Tank Upgrade 2 <br /> Southland Store No 20632 a627_DaVinci Drive,Stockton,Caldomia August 10, 1998 <br /> Soil and/or Groundwater Sampling and Waste Disposal <br /> Underground storage tank upgrade proceedings will be observed by Fluor Daniel GTI personnel If <br /> field observations indicate the presence of hydrocarbons (i a soil discoloration, hydrocarbon odors, or <br /> elevated photoionization detector readings), soil (and grab groundwater samples as appropriate)will be <br /> collected in accordance with SJCDEH requirements Sampling locations will be determined in the field <br /> after consultation with the SJCDEH <br /> Soil samples will be collected in an undisturbed state from the backhoe bucket or using a hand-auger <br /> slide-sample barrel fitted with 2-inch-diameter by 6-inch-long brass sample tubes All sampling <br /> equipment will be cleaned between sampling intervals with TSP detergent, followed by successive <br /> rinses of tap and distilled water Samples to be potentially submitted for analysis will be sealed with <br /> aluminum foil, capped with plastic caps, taped, labeled, and placed on ice in an insulated container All <br /> soil samples to be analyzed will be delivered to a state-certified laboratory under legal chain-of- <br /> custody Sampling will be conducted in accordance with Southland Corporation/Fluor Daniel GTI <br /> Standard Operating Procedures (Attachment A) Sample analysis will be for total petroleum <br /> hydrocarbons as gasoline (TPHg), and benzene, toluene, ethylbenzene, and total xylenes (BTEX) <br /> following EPA Method 801518020, the oxygenates tertiary butanol (TBA), methyl-tertiary-butyl ether <br /> (MTBE), di-isopropyl ether (DIPS), ethyl-tertiary-butyl ether(ETBE), tertiary-amyl-methyl ether (TAME) <br /> following EPA Method 8260, and total lead by EPA Method 6010 (soil at site has not been previously <br /> analyzed for total lead) <br /> Groundwater will be encountered during the tank removal or excavation of the new tank pit Grab <br /> groundwater samples will be collected from the excavation area in accordance with Southland <br /> Corporation/Fluor Daniel GTI Standard Operating Procedures (Attachment A) Groundwater samples <br /> will be collected using disposable sampling bailers, poured into 40-milliliter VOA vials, filled to zero <br /> headspace and sealed with screw-on caps with Teflon septa Each sample will be acidified, labeled, <br /> and placed on ice for delivery under legal chain-of-custody to a state-certified laboratory for analysis for <br /> TPHg and BTEX following EPA Method 80151602/8020, and for the oxygenates TBA, MTBE, DIPS, <br /> ETBE, and TAME by EPA Method 8260 <br /> In accordance with 40 CFR 2614 (b) (10), and CCR Title 22 66261 24, soil and/or groundwater which <br /> need to be removed from the site to allow completion of upgrades are proposed to be hauled as non- <br /> hazardous waste by a licensed waste hauler for recycling at a licensed facility Prior to soil and/or <br /> 20632SJC LTR <br /> FLUOR DANIEL GTI <br />