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I � 03 March 2005 AGE-NC Project No 98-0452 ' Page 2 of 6 during the purge process using an Oakton water analyzer Field data sheets are included in Appendix ' B Purged water was stored on-site in appropriately labeled, 55-gallon DOT-approved drums ' Domestic well DW-1 was purged by opening the purge valve and allowing the holding tank to be emptied Following complete discharge of the holding tank the pump was allowed to operate for at least one minute prior to water sampling 2 12 Collection and Analysis of Ground Water Samples ' Water samples were collected from each monitoring well using the dedicated disposable bailers after allowing the wells to achieve a minimum 80% recovery of the pre-purge water volume A water ' sample was also collected from domestic well DW-I at a sampling port located on the supply line between the well head and the holding tank Each water sample was transferred into laboratory- supplied 40-m1 volatile organic analysis (VOA) vials containing 0 5 ml 18% hydrochloric acid as ' a sample preservative and one 1-liter amber bottle without preservative After collection,the samples were properly labeled, placed in a chilled container and transported under chain of custody to Cal Tech Environmental Laboratories (CTEL), a California Department of Health Services (DHS)- certified analytical laboratory, and analyzed for • Total petroleum hydrocarbons quantified as gasoline (TPH-g) and diesel (TPH-d) in ' accordance with EPA Method 8015 Modified, and • Benzene, toluene, ethylbenzene and total xylenes (BTEX) and the fuel additives methyl- ' tertiary-butyl-ether(MTBE),tertiary butyl alcohol (TBA), di-isopropyl ether(DIPS), ethyl tertiary butyl ether (ETBE), and tertiary amyl methyl ether (TAME), methanol, ethanol, 1,2-dibromoethane (EDB) and 1,2-dichloroethane (1,2-DCA) in accordance with EPA Method 8260B ' 22 OUT-OF-SERVICE WELL PERMIT f Presently there are two domestic wells on-site,the working well DW-I and a second well that is non- functioning and in disrepair The EHD has directed by letter, dated 30 June 2004, that the non- functioning well be destroyed In a phone call following the receipt of letter, it was indicated by ' Mr Jeffrey Wong of the EHD that other options were available, among them to obtain an Out-of- Service ut-ofService well permit that is effective for up to five (5) years Since the Out-of-Service well permit option was more cost effective for the client, AGE obtained the permit, dated 27 August 2004 A copy of the regulatory letter and permit are included in Appendix C • Advanced GcoEnwronmental,Inc r