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d i <br /> April 22, 1996 SECOR <br /> fcl lrrrr;c)J)cr/Tlrc.rll�)r,�nlc,cl <br /> David L Crow <br /> San Joaquin Valley Unified Air Pollution Control District ; <br /> 1999 Tuolumne Street, Suite 200 <br /> Fresno, CA 93721 <br /> Subject. QUARTERLY REPORT ON THERMAL OXIDIZER OPERATION <br /> PERMIT NO. N-3139-1-0 <br /> 440 WEST CHARTER WAY, STOCKTON, CA <br /> Mr Crow. <br /> Enclosed for your review is the Quarterly Monitoring Report for the period January through <br /> March 1996 for the above referenced site SECOR International Incorporated (SECOR) is <br /> forwarding you a copy of this report on behalf of Mr Dave Heinrich of Texaco Refining and <br /> Marketing, Inc Laboratory analytical results of air samples collected during this quarter indicate <br /> that the soil vapor extraction and treatment system operated within the conditions specified in the <br /> permit to operate. <br /> The soil remediation system consists of four dual-completion vadose zone extraction wells, a <br /> vacuum blower, and a thermal oxidizer The thermal oxidizer was re-activated on January 5, <br /> 1995. A SECOR technician visited the site bi-monthly to monitor the system Activities <br /> performed during these visits included equipment inspection, influent and effluent soil vapor <br /> concentration measurements, and control system adjustments A flame ionization detector was <br /> used by the technician to measure the soil vapor concentrations when the soil remediation system <br /> was operating <br /> During this reporting period, the soil remediation system was down periodically due to equipment <br /> failure. An hour meter was installed on March 27, 1996 to record cumulative running time of the <br /> soil remediation system Influent and effluent soil vapor samples were collected each month in <br /> Tedlar sample bags and submitted to BC Analytical in Glendale, California for laboratory analysis <br /> The soil vapor analytical results and system efficiency results are enclosed with this report. The <br /> soil remediation system removed approximately 2256 pounds of gasoline for this reporting period <br /> TESIChtrwy 196 cov <br /> NODO1.W0&01 SECOR <br /> RECEI Apn122,1996 <br /> APR 2 91996 <br /> ENVIRONMENTAL HEALTH <br /> r <br /> PERMIT ! SERVICES <br /> i! 1/b V)(0 �11(WWI1 '')16) 15( 1 J')) 156 0/1(J� `' � <br />