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{ . <br /> i <br /> Geological Techltics ltc. <br /> Modesto,California 95354 }` r <br /> ( ` (209)522-4119/Fax#522-4227 " <br />' I P111 48 <br /> July 5, 2002 <br /> 1 <br /> GTI Project No.: 750.3 <br /> GTI Project Name: City of Escalon <br /> Ms Heather Kuklo <br /> San Joaquin Valley Unified Air Pollution Control District <br /> 4230 Kiernan Road, Suite 130 <br /> Modesto, California 95356 <br /> i <br /> RE: Authority To Construct(N-4546-1-0) Startup Inspection Monitoring Results(6/18/02) <br /> City of Escalon(Former Arco Mini Mart), 1305 Escalon, Ave., Escalon,CA <br /> Dear Ms Kuklo: <br /> Attached are copies of the laboratory data (Air Toxics) for the influent and effluent air samples <br /> collected on June 18, 2002 after the restart of the internal combustion engine (I.C.). The I.C. is <br /> being used to control emissions from the soil vapor extraction system operating at the Former - <br /> Arco Mini Mart site. <br /> After being rebuilt and reinstalled at the site on April 22, 2002, the IC failed again and was <br /> j removed from the site on May 29, 2002, The IC was rebuilt once again and returned to the site <br /> on June 14, 2002. The VETS was restarted on June 14, 2002. <br /> Influent and effluent air samples were collected on June 18, 2002 and the attached calculations <br /> i show that the I.C. was meeting the 95% efficiency standard. <br /> Monthly samples will continue to be collected and the results will be submitted to your office. <br /> If you should have any questions regarding this project please contact myself or Ray Kablanow <br /> at the office. <br /> Respectfully ubmitted, <br /> 6 <br /> GEOLO 11CAL TECO NICS INC. <br /> Michael J. Niemi <br /> Geologist <br /> cc: Lori Duncan—SJC PHS/EHD <br /> Gordon Boggs—RWQCB-CVR <br /> Doug Stidham-City of Escalon <br /> USTCFP <br /> i <br />