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s <br />01/25/96 1522 <br />of soil and pushing a <br />sample tube into the s <br />sample tubes will be <br />plastic end caps. The <br />with ice, entered on a <br />State -certified labora <br />area will be analyzed <br />gasoline., benzene, t <br />according to EPA Metho <br />used oil UST will be ai <br />TPH-di.ese.l, oil and gr. <br />8010 and semi --volatile <br />Additionally, product <br />existing pump islands. <br />approximate depth of fs <br />of piping and once e` <br />Samples will. be analyz <br />gasoline? and KTEX usin <br />3. 2 ®v <br />Soil in and around the <br />piping) will be visual <br />impact. ®verexcavatioi <br />results collected duri: <br />source removal would be <br />collected at excavation <br />he determined by one or. <br />a 209 333 6309 <br />L' <br />KEN PPIGE P.04 <br />-lean, 6 -inch -long, 2 -inch -diameter., brass <br />it until completely full. The ends of the <br />overed with aluminum foil and sealed with <br />samples will, be labeled, placed in a cooler <br />Chain -of -Custody form and transported to a <br />ory. samples collected in the gasoline UST <br />for total petroleum hydrocarbons (TPH) as <br />luene, ethylbenzene, and xylene ($TEX) <br />80:15/8020. Sample; collected beneath the <br />ilyzed for the same constituents as well as <br />ase, chlorinated solvents using EPA Method <br />solvents using EFA Method 8270. <br />piping will be removed from around the <br />The piping trench will be excavated to an <br />it feet and the r -)area sample at the junctions <br />ry twenty feet along street piping runs. <br />i. by a. State -certified laboratory for TPH- <br />Atethod 8015/802(;. <br />ouxce._Remova1 <br />�ormer station facilities (uSTs and product <br />ly inspected for evidence of hydrocarbon <br />will. occur. In these areas if analytical <br />`g facility removal a.ndicate that further <br />beneficial. Confirmation samples will be <br />limits. The limits of the excavation will <br />more of. the following conditions: <br />x Field screen ng .indicated that the- excavation is at - <br />sufficient de th/extent to remove the contaminate areas <br />of the suspected source. <br />* <br />Analytical. r -sults of confirmation samples identify <br />residual hydr carbons as below 1.00 ppm TPH--gasoline. <br />* The cost/benefit of further excavation is evaluated to <br />he unfavorabl_ with respect to other options. <br />* Excavation is limited by surface improvements (sidewalks, <br />utilities, bulld.ings, etc.) <br />* Groundwater i_, encountered. <br />* Prac:t:ical lim is of excavation equipment are reached. <br />Field screening will be <br />photoioni.zation detecto: <br />be collected from the e) <br />performed 'visually and/or with a hand-held <br />or a Hanby kit. Verification samples will <br />cavation on approximately 20 foot centers. <br />2 <br />