Laserfiche WebLink
1 <br /> Soil Gas Survey <br /> was conducted in the vicinity of the former gasoline tank the sc iic1�,e� <br /> A soil gas survey �(f i99! (Appendix C}. The purpose o <br /> Research Corporation on May <br /> survey was to qualitatively delineate the shcelciw vertical and lateral extent c}l' vokctt e <br /> organic compounds in the shallow sub <br /> the round. After the probe was inserted to <br /> A hydraulic hammer attached to the back of a one-tan van was used to push 314-inch- <br /> mer <br /> diameter hollow steel sample probes m g um in <br /> the desired depth, the above ground end of than ro a evacuated <br /> d with the tp vacuum <br /> i <br /> pump. Before sampling, two to five liters of abe Then ten milliliters of gas were <br /> order to Burge the v��lunze of air within the I s chrom,nograph The samples were <br /> lenes, and totF►l volatile hydrocarbons. <br /> collected and immediately analyzed using, it g <br /> analyzed for benzene, toluene, ethylbenzene, xY <br /> oil as locations were sample <br /> Svcs gd�at depths hetween four and 13 feet bgs. The soil <br /> gas as <br /> are shown on Figure ')-I. <br /> Subsurface Soil Satnplirtg e vicinityof the former <br /> drilled in <br /> oil ere <br /> Figure 3-1 shows the sevenecn S ted d ese'Startk.wTi� purpose of the soil borings was to <br /> gasoline tank and theP <br /> assess the potential vertical and horizontal extent al petroleum hydrocarbons and tm- <br /> prove the understanding of the local str g p (Spectrum), using CME-55 <br /> The sail borings were drilled by Spectrum Exploration, Inc. <br /> d CME-75 drill rigs equipped with 8-inch outside diameter hollow-stem augers• <br /> an depths <br /> ne tank were <br /> The four soil borings in the <br /> vicinity e'threef the toil borormer gingsl in the vicinity ofthesuspected <br /> between 51 and b6 feet bgs, and <br /> les were <br /> diesel tank were drilled to depths beiwe m each f the borings by drivngen 41 and 51 fe et sa splitlspo n sampler <br /> collected at 5-foot intervalsas <br /> as <br /> with brass liners. Immediately after each ends sample <br /> labeled,l and placed bnaan tee tiss tube lled <br /> sealed with Teflon tape and polyethylene, <br /> �s are at- <br /> ld <br /> ds using an HNU meter. Boring log polars <br /> cooler. Remaining ani', in the sample' .vas visually classified and logged and ie <br /> screened for volatile organic compo in Red- <br /> were <br /> to this report as Appendix B. At the end of each field day the rata <br /> were shipped via overnight courier to the CI-12M HILL Analytical Laboratory <br /> ding, California. <br /> gasoline <br /> All sail samples were analyzed for the <br /> volatile es fromatic <br /> the v icinityrof the Former g bons ben7ene, acne. <br /> ethylbenzane, and xylene (BTEX). p g TPH-Gas) and <br /> tank were also analyzed fortotal <br /> dieselleum t n areawocaerealso analyzed far total petro <br /> lead. Samples from the suTPl3- Diesel). <br /> ---- - - <br /> ---_ ---leum hydrocarbons diesel <br /> 3-3 <br /> SF031 6o5\RP'W3.S l <br />