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e _ <br /> s <br /> z - <br /> i ram <br /> fate i <br /> t't�u 11•Ua, <br /> ---------------- <br /> 33 Monitoring Well D'-'vcl{'i}me't <br /> Twenty four hours after the third well was <br /> i1tSR hIW2 and SRKfMW3 -werctbailed dryu,f er <br /> from monitoring well SILK-M t, while were <br /> four casing volumes were purged. "i'he casing�lumes were purgcd using ased on 1a teflon bailer l and <br /> measurements made ou the day of sampling- <br /> dedicated nylon rope. 'the bailer was thoroughly cle, se, Copies tried before uOf`nhe Fiieldg each `groundw ter <br /> m e- <br /> phosphalc soap followed by a deiontzed <br /> was <br /> r; F. <br /> 55- <br /> purging/sampling Ings are provided in Peodors or lir',d'csccnt ter rshecnged rnwcre`lobservcdcinl water <br /> gallon, closed-top drum. Na Petroleum <br /> i" evacuated from any of the monitoring wells. <br /> i <br /> 3.4 Groundwater Sampling <br /> m well SRK-N4WI and <br /> M <br /> Three additional well casing volumes were <br /> purged fro <br /> SRK-M 2 was bailed dry aft aneawing <br /> for approximately one hour, t <br /> analytical samples were collected. Mo & <br /> volume was removed- Thts well was n1E etc from welllowed to sSRK-MWl and SRK-MW3 afterlthe <br /> $ <br /> sampled, The analytical samples were c <br /> pll, temperature, and conductivity Nadstabilized.lcStabilized" <br /> rtial't Oon is <br /> defined <br /> cr and ded cated nylon rope <br /> readings within 15 percent oCone anotn p <br /> was carefully p,..,,rcd into laboratory grade <br /> were used to retrieve the water samples. The water <br /> in an iced cooter. 'lite analytical <br /> then placed <br /> sample containers equipped with teflon lined lids, ns ,ITT as gasoline(Modified EPA <br /> V groundwater parameters include toe1hp4l7enlzene,eum and yleac {BTEX} (EPA Method fiQ20}; and <br /> Method 8015); benzene, toluene, Y <br /> total lead (EPA Method 7421) ']fie analytical follow nglcha were <br /> i <br /> ofpust coolerd in a o <br /> dy proceurestotNorth <br /> additional frozen blue ice packets, and shipped <br /> Creek Analytical (CLAP # 1267) for analysis. <br /> 4.0 ANALYTICAL DATA <br /> 4.1 Soil Results <br /> ns <br /> As previously mentioned, the analytical soil parameters included total petroleum hydrocarbons <br /> {'f'PH} as gasoline (Modified EPA MethexldSO��AIvte[hoccl,7421)toluene, <br /> The con tituents ofBTEX, <br /> (BTEX) (EPA Method 8020), and total lea { <br /> TPH, and Lead were not detected in ary of the analytical soil samples frint e). The analyti al <br /> depths of30 feet(seasonal groundwater level),and 50 feet{cahiliary]rings}. Y _. -...._-- <br /> _.. Toluem; .... <br /> detection limits are as follows: 'ITH, 10 ppm; Benzene, 0.0 ppin; - <br /> Eh ti nz limits <br /> Q.10 pP'n>Xylenes,0.10 ppm;and Lead,7.5 ppm- Copics of the analytical soil data <br /> Y <br /> are provided in Appendix F. <br /> - ~ stiffen Robcr wn and Virden - <br />