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t w <br /> 'r k <br /> .l <br /> continued until the water was relatively clear. Well development purge <br /> water was contained in sealed and labeled 55-gallon steel drums and left <br /> on-site for temporary storage until off-site disposal could be arranged. <br /> No free-floating hydrocarbons or sheen were present on the surface of <br /> groundwater during well development. } <br /> 5 .5 Monitoring Well, Sampling <br /> On August 24, 2001, ASE associate .geologist Erik Paddleford collected <br /> groundwater samples from monitoring well MW-6 for analysis. No <br /> free-floating hydrocarbons or sheen were present on the surface of <br /> groundwater in the monitoring well. Prior to sampling, the well was <br /> purged of four well casing volumes of .groundwater. The pH, temperature, <br /> and conductivity of the purge water were monitored during evacuation, <br /> and samples were not collected until these parameters stabilized. <br /> Groundwater samples were removed <br /> p from the monitoring well with a <br /> factory-cleaned, unusedpolyethylene bailer. The <br /> Y groundwater samples <br /> were contained in 40-m1 ;volatile organic analysis (VOA) vials, preserved <br /> with hydrochloric acid, and sealed without headspace. The samples were <br /> then labeled and stored with ice for transport to Kiff -tinder chain of <br /> custody. Well sampling purge water was . contained in sealed and labeled <br /> 55-gallon steel drums and left on-site for temporary storage until off-site <br /> disposal could be arranged. The well sampling field Iog for MW-6 is <br /> presented in Appendix E. ; <br /> E <br /> 5 .6 Soil Sample Analysis <br /> The soil sample collected from 'between 5.0 and 6.5-feet bas in boring <br /> MW-6 was analyzed by Kiff for- TPH-G, BTEX, and the fuel oxygenates <br /> MTBE, TBA, TAME, DIPE and ETBE by EPA Method 8260. The analytical <br /> results are tabulated in Table Two. The certified analytical report and <br /> chain of custody are presented in Appendix F. <br /> The soil sample contained 41.0 ppm TPH-G, 0.19 ppm benzene, and 0. 20 <br /> ppm ethylbenzene. No other compounds were detected above laboratory <br /> reporting limits. <br /> 574'West Grant Line Road CAP — January 2002 <br /> -7- <br />