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Page I of I <br /> Vicki McCartney [EH] <br /> From: Nuel Henderson [EH] <br /> Sent: Friday, September 27, 2013 9:39 AM <br /> To: Vicki McCartney [EH] <br /> Subject: FW: George's Service- 1600 Durham Ferry Rd <br /> FYI <br /> From: Andrew Dorn [mailto:ADorn@groundzeroanalysis.com] <br /> Sent: Friday, September 27, 2013 8:16 AM <br /> To: Nuel Henderson [EH] <br /> Cc: Ray Kablanow; Jenny Weese <br /> Subject: George's Service - 1600 Durham Ferry Rd <br /> Good morning Nuel, <br /> I am contacting you in regards to the George's Service site located at 1600 Durham Ferry Rd. I have included a <br /> table displaying the PID,extraction rate and laboratory analytical data for the SVE system operating on-site.As <br /> you will see in the table,following 2 consecutive sampling events in November 2012 that resulted in non-detect <br /> levels of constituents of concern,we ceased laboratory samples and relied on PID analysis.This may indicate <br /> that we are removing breakdown products and that sufficient bio-attenuation is occurring within the excavation <br /> backfill that the 2 SVE wells are installed within. If you desire that we collect laboratory samples from the SVE <br /> system on a set basis(quarterly,annually, etc.),we can begin that immediately. <br /> Let me know if you have any questions or concerns. <br /> Thank you, <br /> Andrew Dorn <br /> ROUND ZERO <br /> ANALYSIS,INC <br /> 1172 Kansas Ave,Suite A <br /> Modesto,CA 95351 <br /> (209)522-4119 <br /> adorn@aroundzeroanalysis.com <br /> www.groundzeroanalysis.com <br /> 9/27/2013 <br />