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Table 2 Geosyntec Consultants <br /> Analytical Methods and Hold Times <br /> Draft Investigation Work Plan-UST 817B <br /> Rough and Ready Island, Port of Stockton <br /> Analyte Method Container --F---Holding Time Preservative <br /> Soil <br /> 0-6°C;2 aliquots preserved in <br /> USEPA Method water/sodium bisulfate solution <br /> VOCs&TPH-g 8260B Terra Core 14 days for low level analysis and 1 <br /> aliquot preserved in methanol for <br /> high level analysis <br /> USEPA Method 14 days for extraction;40 <br /> TPH-d 8015B 4-ounce glass jar days after extraction for 0-60C <br /> analysis <br /> Groundwater <br /> VOCs&TPH-g USEPA Method 3-40 mL VOA vials 14 days 0-6°C with no headspace; <br /> 8260B preserved in hydrochloric acid <br /> USEPA Method 500 mL amber glass 7 days for extraction;40 <br /> TPH-d 8015B bottle days after extraction for 0-60C <br /> analysis <br /> Product' <br /> USEPA Method 500 mL amber glass 7 days for extraction;40 <br /> TPH-d 8015B bottle days after extraction for 0-60C <br /> analysis <br /> TPH-g USEPA Method 3-40 mL VOA vials 14 days 0-6°C with no headspace; <br /> 8260B preserved in hydrochloric acid <br /> Soil Vapor <br /> USEPA Method TO 1-L SummaTM <br /> BTEX 15 canister(or 30 days Keep out of sunlight <br /> equivalent type) <br /> USEPA Method TO 1-L SummaTM <br /> Naphthalene 15 canister(or 30 days Keep out of sunlight <br /> equivalent type) <br /> 1-L SummaTM <br /> Helium&Oxygen ASTM D-1946 canister(or 30 days Keep out of sunlight <br /> equivalenttype) <br /> Notes: <br /> 1.Product will be collected and analyzed only if identified at the surface of groundwater. <br /> Abbreviations: <br /> --:not applicable TPH-g=total petroleum hydrocarbons as gasoline <br /> °C: degrees Celsius TPH-d=total petroleum hydrocarbons as diesel <br /> mL:milliliters USEPA:United States Environmental Protection Agency <br /> BTEX:benzene,ethylbenzene,toluene, VOA:volatile organic analyte <br /> xylene VOC:volatile organic compound <br /> Page 1 of 1 <br />