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Page 4 of 4 <br /> To: bmillman@.advaeoenv.com <br /> Subject: Vapor Intrusion Mitigation System <br /> Good morning Brian, <br /> I have a few questions concerning the Weldon Church Property vapor intrusion mitigation system <br /> proposed by Advanced GeoEnviron mental, Inc. <br /> 1. Is Terra-Petra Environmental Engineering licensed in the State of California? <br /> 2. What is the anticipated noise level of the proposed vapor intrusion mitigation system? <br /> 3. Will you please provide me an operation manual for this system? <br /> 4. Is there a reason why the PVC pipe does not run the entire length along the east side of the crawl <br /> space (parallel to the two other PVC pipe lines on the north side of the header pipe)? <br /> I would like to get the results from this week's indoor/crawl space/ambient air sampling as soon as <br /> the analytical data becomes available (before the official report is prepared). This will help <br /> in evaluating the design of the vapor intrusion system. <br /> Thanks, Brian. <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: vmccartney a sjcehd.com <br /> 3/29/2012 <br />