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' Mr Harlin Knoll <br /> July 15, 1999 <br /> Page 2 of 2 <br /> Purge water accumulated dunn previous events was removed from the site and transported to an <br /> gp p <br /> EPA certified disposal facility on May 3, 1999 A copy of the non-hazardous manifest is included <br /> in Attachment B <br /> Groundwater samples were submitted to Argon Laboratories (FLAP 91873) for analysis of TPHg <br /> and 13TEX utilizing EPA methods 8015 modified and 8020, respectively <br /> No petroleum hydrocarbon constituents were detected in wells MW 1, MW4 or MW8 TPHg and <br /> BTEX were detected in well MW5 at concentrations of 63,000 parts per billion (ppb), 9,400 ppb, <br /> 4,300 ppb, 1,200 ppb, and 9,000 ppb, respectively Analytical results are summarized in Table 3 <br /> Laboratory data sheets and chain of custody documentation are included in Attachment C <br /> The third quarter momtonng and sampling event is scheduled for August 1999 A 48-hour notice <br /> will be given pnor to conducting any fieldwork <br /> Please contact John Lane or Greg Stahl at your convenience if you have any questions or <br /> comments regarding the site <br /> Sincerely, ,��RED <br /> Ground Zero Analysis, Inc �r <br /> 4�1 JOIN P. <br /> i >-A"NE <br /> N No 6 795 ° <br /> John P Lane <br /> 7Reered Geologist 6795 op CA�-�F <br /> /1' I-ED Ge <br /> Gregory P Stahl, RG 5023 GREGORY P. <br /> CA Certified Hydrogeologist 264 STAR <br /> No. 5023 <br /> SG <br /> qjE OF CALIF°�� <br /> Attachments <br /> cc Mr Carl Knowles <br /> Mr Patrick D Riddle, Esq <br /> CRWQCB Sacramento <br /> Jknowles ha:n/reporW2gm1999 doc <br />