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i4 <br /> Resift Report for Air Mordtoriig of <br /> Fx4ended Mut Vapor Edrecylon Test <br /> 4445 Pershing Avenue Stockton Caldomia <br /> • <br /> BACKGROUND AND EQUIPMENT DESCRIPTION <br /> Upon receipt of the San Joaquin Valley Unified Air Pollution Control District's (SJVUAPCD) <br /> executed "Interim Variance/Variance Not to Exceed 90 Days Duration," Aegis personnel <br /> temporarily installed on site, on November 27, 1991, a Model V3 BACT sod venting <br /> engine, manufactured by VR Systems of Anaheim, California, with official start-up on <br /> December 5, 1991 The installation included: a) marofolding the VEW to the IC unit <br /> (Figure 2), b) installation of an alternative energy source (propane), c) installation of <br /> security fencing, and, d) safety notification <br /> Two VEW were installed by Aegis in July 1990 Well VEW-1 was installed to 24 5 feet <br /> below surface with the screened interval from 14 5 to 24 5 feet below surface Well VEW- <br /> 2 was installed to 17 feet below surface with the screened interval from 7 to 17 feet below <br /> surface <br /> The V3 IC unit includes <br /> 1 One (1) Ford industrial internal combustion engine, Model LSG-875, liquid- <br /> cooled V8, 460 cubic-inch displacement, 150 BHP <br /> 2 One (1) Car Sound 3-way/2-way catalytic converter <br /> 3 Computerized Stoichiometric Fuel Regulators, manufactured by VR <br /> Operation of the IC unit includes the following a) extraction of vapors from the ground <br /> using the engine manifold vacuum; b) combustion of vapors, as fuel, to run the engine, <br /> and, c) passing the exhaust stream through the catalytic converter for final purification <br /> before emission through the exhaust stack The engine's operation is monitored and <br /> controlled by an on-board computer system that drives the master control unit The <br /> master control unit monitors and directs the air/fuel ratio for optimum combustion of TPH <br /> in the air stream and efficiency of the engine <br /> AIR MONITORING <br /> The monitoring of TPH concentrations in inflow to and exhaust from the V3 treatment unit <br /> consists of three (3) test periods of approximately fifteen (15) minutes each per day, <br /> performed two (2) days per week per the requirements of the SJVUAPCD On <br /> December 5, 11, and 13, 1991, Aegis personnel monitored influent and effluent TPH <br /> concentrations for three 15-minute intervals Concentrations of TPH in the air streams <br /> were measured by a Foxboro 128 Century Model organic vapor analyzer All influent air <br /> to the V3 unit during this week was drawn solely from well VEW-2 <br /> 89.016H RP7 2 <br />