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E y <br /> ' -f- <br /> GETTLER - RYAN INC. ` <br /> June 12, 2001 <br /> Rupi Gill <br /> San Joaquin Valley Air Pollution Control District <br /> Permit Services Division <br /> 4230 Kiernan Ave, Suite 130 <br /> Modesto, CA 95356-9322 <br /> RE: Proposed Vapor Extraction Test <br /> Former Unocal Service Station 4 2859 <br /> 1665 Pacific Avenue <br /> Stockton, California <br /> Dear Mr. Gill: <br /> This is a letter to inform you of a pilot vapor extraction test that will be conducted at the above referenced <br /> site. The following information is being submitted, <br /> 1. Gettler-Ryan Inc. (GR)will conduct the pilot vapor extraction test. <br /> 2. The test will be conducted at the-subject site <br /> 3. The test will be conducted between June 18, and June 22, 2001, and-will operate a minimum of 8 <br /> hours a day. <br /> 4. The emission control device to be used will be a VR Systems, Model V3 internal combustion <br /> engine(ICE), equipped with a'460 cubic inch engine. <br /> 5. . The influent and effluent of ICE will be monitored periodically to check destruction efficiency <br /> with a portable photoionization detector. <br /> 6. Periodic flow and vacuum readings will be taken, to determine radius of influence-and mass <br /> extraction rates. <br /> 7. The contact person for this test will be Scott Polston, Staff Engineer, Gettler-Ryan Inc., (925) <br /> 551-7555. <br /> If you have any questions regarding this project,please do not hesitate to call me at(925) 551-7555. <br /> Sincerely, " <br /> Gettler-R h'Inc. ' <br /> Scott Polston <br /> Staff Engineer <br /> cc: Mr. Nick Nickerson,Unocal Corporation AMG <br /> Mr. Greg Gurss, Gettler Ryan,Rancho Cordova <br /> Ms. Dot Lofstrom, San Joaquin County Environmental Health Division <br /> 6747 Sierra Court , Suite J Dublin , California 94568 ( 925 ) 55.1 - 7555 <br />