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1120 Eli- mgas <br /> Y� <br /> -1 WN N. N <br /> YES to both- 20 linear feet of <br /> 6_ Were soil samples taken for every <br /> underground piping? the <br /> Bening lton Engineering for odor <br /> d scree, of the trenchbesWaeft from the removala°fWEGE <br /> No. Fiel was performed y <br /> underground Piping end on subsequent site visits by <br /> and visual staining* with a hand held PID anth cproductaline <br /> geologist, field screening <br /> petroleum hydrocarbon contamination existed along <br /> trenches. les submitted? <br /> 7. Were depth and location of soil same <br /> YEs, see Figure 3B and Table 3• that WEGE <br /> in and the Mon We <br /> We <br /> Based upon the preceding ling <br /> erformed, this site should be considered for closure. and <br /> has P rmedfne range hydrocarbons found intthe yank eccavationP <br /> feel the g ;, associat.ed with theeXtent and have been <br /> .. <br /> Of the ground wat_r limited in <br /> monitor well MWW1 were very <br /> remediated via natural evaporation and dilution methods- <br /> SITE INVESTIGATI" wells <br /> d water was sampled in the three onsite <br /> Ssrfacerelevata h <br /> The grcua sneers (WEGE) geologist. <br /> by a Western Geo-Eng' of <br /> water and ground water elevation were recorded.��or <br /> depth to No floating product was obsear"rox mately 2 <br /> well {WEGE TABLE 1) • led efter 5 bailers was PP "contained" <br /> the wells. Each well was <br /> sampled <br /> "purged" '.jater This water was <br /> gallons) of water were removeallan drum on safer Treatment Plant. <br /> in a labeled, secured 55 f at the Tracy <br /> later removed and disposed of the ground water was contoured and a <br /> From the well information,(Figure 4A-4I) • <br /> flow direction inferred <br /> DISCUSSION ed using the information <br /> s were develop rounds and indicate <br /> Ground water <br /> contour quarterly monitoring <br /> obtained during see FIGURES 4A, thru 41. <br /> apparent flow directions to the northeast, BTEX <br /> results shoo that TPH and reporting <br /> --The-____ analytical laboratory been below water <br /> _-----_ -- ---- in -and_M�I3 have alwaysshowed- ground- <br /> i0n1 initially ppm gasalane range- - ---- ----- <br /> coaacenra��)s- Monitor well with 1988 <br /> limits ( June if 1988, Sampling on August 11, <br /> cont aminh-ed on b beSlZene. below <br /> hydrocarbons and 41 ppb drocarbois were then <br /> showed that the gasoline range by which is below the State of <br /> detection limits with 0.6:ppb banzene, . <br /> pege4 <br />