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i <br /> i <br /> GeoCogica� Techlucs Inc, <br /> 1107 Th St. <br /> i Modesto,California 95354 <br /> (209)522-4119/Fax#522-4227 <br /> May 17, 2002 <br /> GTI Project No.: 750.3 MAY 2 3 2002 <br /> GTI Project Name: City of Escalon <br /> Ms Heather Kuklo ENVIRONMENT HEALTH <br /> San Joaquin Valley Unified Air Pollution Control District PERMIT/SERVICES <br /> 4230 Kiernan Road, Suite 130 <br /> Modesto, California 95356 <br /> RE: Authority To Construct(N-4546-1-0) Startup Inspection Monitoring Results(4/30/02) <br /> City of Escalon(Former Arco Mini Mart), 1305 Escalon,Ave.,Escalon,CA <br /> j . <br /> Dear Ms Kuklo:- <br /> Attached are copies of the laboratory data (Air Toxics) for the influent and effluent air samples <br /> collected on April 30; 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 /> The IC was shutdown and removed from the site on February 27, 2002 because it was not <br /> properly controlling emissions from the vapor extraction system. The IC was completely <br /> rebuilt, new pistons, rings, valves and catalytic converters. The IC was returned to the site ori <br /> April 22, 2002 and restarted. Problems were encountered with the IC for the first-week that <br /> were causing the IC to shutdown unexpectedly. These problems were worked out and the IC <br /> has been in continuous operation since April 30, 2002. <br /> The attached calculations show that the I.C. was meeting the 95% efficiency standard and that <br /> the effluent emissions are below the required 40.7 pounds per day. <br /> t Monthly samples will continue to be collected and the results will be submitted to your office. <br /> j If you should have any questions regarding this project please contact myself or Ray Kablanow <br /> at the office. <br /> f <br /> Respectfully S mitted, <br /> 4 <br /> CTEOLOC1CAL TECMNICS 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 /> 4 <br />