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Page 1 of 1 <br /> Margaret Lagorio [EH] <br /> From: William Little [wlittle@advgeoenv.com] <br /> Sent: Tuesday, May 19, 2009 10:39 AM <br /> To: Margaret Lagorio [EH] <br /> Subject: RE: 1766 Monte Diable <br /> Email sent <br /> I have been going through our file information for the above site. Harlin's field notes show that three air sparge <br /> wells, IAS-8 through IAS-9, were installed on 6/22/98. The only report information I can find on installation of air <br /> sparge wells after IAS-2 through IAS-7 were installed on 4/19/97 is dated August 17, 1998 and is titled Quarterly <br /> Report-June 1998. That report states that three wells IAS-7 thru IAS-9 were installed on 7/29/97, the map in that <br /> report only shows an additional IAS-7 and IAS-8. I think the 7/29/97 date is in error and the map should be <br /> corrected. I couldn't find any well logs, do you have any to confirm the installation date or are there field notes or <br /> driller invoices for the work. <br /> The work completed included the installation of additional in-situ air-sparging points on 29 June 1998. I <br /> have to review the files better for the permit?? Harlin approved the installations on a cover letter dated 01 <br /> June 1998. <br /> 1 think Harlin allowed the wells to be installed under a previous permit and AGE was the C-57 licensed contractor. <br /> Also a pump test was conducted on 3/7/01 and temporary wells T1, T2, T3 were installed that date. I can't find a <br /> report on that work either. Do you have information on the wells and test? <br /> Ground Water Aquifer Pumping Test Report- First Quarter 2001 dated 07 June 2001. <br /> William R. Little <br /> California Professional Geologist 7473 <br /> wlittle O advgeoenv.com <br /> Advanced GeoEnvironmental Inc. <br /> 837 Shaw Road, Stockton,CA 95215 <br /> (800)511-9300/facsimile(209)467-1118 <br /> 5/20/2009 <br />