Laserfiche WebLink
j 2.2 Location and Depth i <br /> The soil boring was made with a hollow stem auger and continuous core drilling. Terminal depth was <br /> 27 feet. Samples were collected at 17, 19, and 27 feet. <br /> I <br /> 2.3 Sample Handling <br /> The samples were collected with brass tubes,sealed,and logged on a chain of custody. A soil boring <br /> log was submitted by Tom Vogle on July 1, 1993. <br /> 2.4 Soil Analytical Results <br /> I <br /> I <br /> al : <br /> Methods of analysis used <br /> Gasoline compounds -- modified Method 8015 <br /> BTEX compounds -- Method 8020 j <br /> Total Lead -- Method EPA DOHS <br /> Results:. Table'l "Soil Analysis Results" <br /> Sample # Depth Benzene, Toluene, Ethyl Total TPH Total <br /> i <br /> ppb ppb Benzene, Xylene, ` Gasoline, Lead, <br /> ppb Ppb Ply ppm <br /> B-1 16.5-17 60 1,700 7,600 65,000 5,400 ND<0.3 <br /> B-1 18.5-19 830 2,000 240,000 1,460,000 44,000 10.0 <br /> B-1 26.5-27 ND 3 4 l8. 2 ND<0.3 <br /> k <br /> 3.0 Proposed New Work <br /> 3.1 Identify Lateral Extent of Soil Contamination <br /> Tri Valley Growers proposes to make soil borings with an AMS Soil Gas Probe, equipped with the <br /> i <br /> 'optional Soil Recovery Probe. The probe will be driven with an electric rotary hammer. A licensed <br /> geologist will be employed to oversee the sampling. <br /> 5 <br /> I <br /> Page 2 <br /> I <br />