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SEACOR <br /> w <br /> July 17, 1992 J U f. Q r�n <br /> Mr. Kai Chan <br /> ENVIPON M�t`f7�,�_I�HEAL�:� TH <br /> ��:.�r1t�l� G��I <br /> s <br /> �� .�' <br /> San Joaquin County Air Pollution Control District 7 <br /> Post Office Box 2009 <br /> Stockton, California 95201 <br /> AUTHORTT'Y TO OPERATE #AP 91 562 <br /> CONDITION 7 OF THE SAN JOAQUIN COUNTY AIR POLLUTION CONTROL DISTRICT <br /> PERMIT TO OPERATE A SOIL REMEDIA`T`ION SYSTEM AT 429 W. LOCKEFORD ST., LODI, <br /> CALIFORNIA <br /> Dear Mr. Chan: <br /> Per the requirements of the SJCAPCD Permit to Operate a soil vapor extraction system at the <br /> above-referenced site, Science & Engineering Analysis Corporation (SEACOR) is submitting <br /> the enclosed information detailing the system operating parameters and influent/effluent sample <br /> • results through June 1992. Based on an effluent vapor concentration of 93 ppmv measured on June <br /> 10, 1992, a total VOC emission rate of 2.5 pounds per day (lbs/day) was calculated. Emission { <br /> calculations for June 1992 are attached. Based on the above emission rate, the system continues to <br /> operate within permit limits. Also, please find attached a copy of the analytical laboratory report <br /> for influent samples collected on April 15 and June 10, 1992. - <br /> If you have any questions, please do not hesitate to contact us at (415) 296-7877. <br /> Sincerely yours, <br /> Science & Engineering Analysis Corporation <br /> Gordon G. Alexander, P.E. <br /> Senior Engineer _ <br /> Attachments: Table 1 - Soil Vapor Extraction System Operating Data 4 <br /> � <br /> and Analytical Results of Sampling <br /> VOC Emission Rate Calculations :, <br /> Laboratory Analysis Results <br /> �rw:3•; <br /> cc: Mary Ways, San Joaquin Public Health Services <br /> ,j. <br /> GGA/bls 100]Pine Street a <br /> .Swat,2025 <br /> San Francisco. CA 94111 <br /> N15)290-7877 <br /> (415)677-9094 l;.LV � <br /> i <br />