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Ceolo icat Tecklics kc. <br /> f 110771`St. i. 1 - <br /> Modesto,California 95354 T �t�Vtr <br /> (209)522-4119/Fax#522-4227 02 <br /> SEP P <br /> 1`4 2: 34 <br /> August 30, 2002 <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 /> RE: Authority To Construct(N-4546-1-0) Startup Inspection Monitoring Results(8/14/02) <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 August 14, 2002 from the internal combustion engine(I.C.). The I.C. is being used <br /> to control emissions from the soil vapor extraction system operating at the Former Arco Mini <br /> Mart site. <br /> Influent and effluent air samples were collected on August 14, 2002 and. the attached <br /> calculations show that the I.C. was meeting the 95% efficiency standard. High levels of C2-C4 <br /> hydrocarbons were reported in the effluent sample. Hydrocarbons in this range have been <br /> observed in the.effluent samples in the past and were a result of the supplemental propane fuel <br /> not being consumed. The subcontractor supplying the IC has been directed to look into and <br /> correct this situation. <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 S it , <br />+ ClEOLOCrlCAL TECOVNICS 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 />{ <br />