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V <br /> " Page 1 of 2 <br /> Vicki McCartney [EH] <br /> From: Vicki McCartney [EH] <br /> Sent: Tuesday, February 07, 2012 3:16 PM <br /> To: wlittle@advgeoenv.com' <br /> Subject: RE: Permit for Lodi Airport <br /> Bill, <br /> Vapor points V100, V101 and V102 were installed on January 7, 2011. 1 don't know when AGE checked the soil <br /> gas concentrations with a PID, but using a PID to determine soil gas concentrations is meaningless. You know <br /> this. <br /> Let me know when AGE plans to collect the soil gas samples and I will be at the site. <br /> Vicki McCartney,Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 600 East Main Street <br /> Stockton,California 95202 <br /> Phone: (209)468-9852 <br /> Fax: (209)468-3433 <br /> Email: vmccartneyy@sicehd.com <br /> From: William Little [mailto:wlittle@advgeoenv.com] <br /> Sent: Tuesday, February 07, 2012 2:47 PM <br /> To: Vicki McCartney [EH] <br /> Subject: RE: Permit for Lodi Airport <br /> Vicki McCartney, <br /> AGE has collected field values from the three soil vapor points installed at Lodi Airport. <br /> The three points were installed in January and purge for one-minute with a low flow <br /> pump; thereafter a PID value was collected with a 'minirea 3000'. The values for the <br /> three points were V100-12,557ppm, V101-2,347ppm and V102-2.Oppm. <br /> AGE will collected soil vapor samples from the three points within the next weeks to <br /> verify the findings of the first soil vapor samples (V6,7,8). Would you like an inspection. <br /> Thank you in advance for your help in this matter. Please call me if you have any <br /> questions. <br /> Sincerely, <br /> William R. Little <br /> California Professional Geologist 7473 <br /> Oregon Registered Geologist G2254 <br /> Washington Licensed Geologist 2778 <br /> Advanced GeoEnvironmental Inc. www.advgeoenv.com <br />