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Table 3 Geosyntec Consultants <br /> Guidelines for Sample Handling, Storage,Analytical Methodology, and Reporting Limits <br /> Port of Stockton <br /> Stockton, California <br /> Analyte Method Container Holding Time Preservative Chemical I Reporting Limit <br /> Soil <br /> 0-6°C;2 aliquots preserved in Benzene 0.005 <br /> VOCs&TPH as USEPA Method water/sodium bisulfate solution Toluene 0.005 <br /> gasoline 8260B Terra Core 14 days for low level analysis and 1 Ethylbenzne 0.005 <br /> aliquot preserved in methanol for Xylenes 0.005 <br /> high level analysis TPH as gasoline 0.5 <br /> TOC USEPA Method 4-ounce glass jar 28 days 0-6°C -- <br /> 9060A <br /> USEPA Method 14 days for extraction;40 <br /> TPH as diesel 8015B 4-ounce glass jar days after extraction for 0-6°C TPH as diesel 1 <br /> analysis <br /> Groundwater <br /> Benzene 0.5 <br /> Toluene 0.5 <br /> VOCs&TPH as USEPA Method 3-40 mL VOA vials 14 days 0-6°C with no headspace; Ethylbenzne 0.5 <br /> gasoline 8260B preserved in hydrochloric acid <br /> Xylenes 0.5 <br /> TPH as gasoline 50 <br /> TOC SM 5310D 250 mL glass bottle 28 days 0-6°C;preserved in sulfuric acid -- <br /> AMethod 500 mL amber glass 7 days for extraction;40 <br /> USEPA TPH as diesel gA M bottle days after extraction for 0-6°C TPH as diesel 50 <br /> analysis <br /> Product <br /> USEPA Method 500 mL amber glass 7 days for extraction;40 <br /> TPH as diesel 8015B bottle days after extraction for 0-6°C TPH as diesel 50 <br /> analysis <br /> TPH as gasoline USEPA Method 3-40 mL VOA vials 14 days 0-6°C with no headspace; TPH as gasoline 0.5 <br /> 8260B preserved in hydrochloric acid <br /> Notes: <br /> 1.Reporting limits are in milligrams per kilogram(mg/kg)for soil samples and micrograms per liter(µg/L)for groundwater samples. <br /> 2.Product will be collected and analyzed only if identified at the surface of groundwater. <br /> Abbreviations: <br /> --:not applicable TPH:total petroleum hydrocarbons <br /> °C:degrees Celsius USEPA:United States Environmental Protection Agency <br /> mL:milliliters VOA:volatile organic analyte <br /> SM:standard method VOC:volatile organic compound <br /> TOC:total organic carbon <br /> Page 3 of 3 <br />