WORK PLANS - Laserfiche WebLink

Home Browse Search

Canepa's Car Wash Work Plan — Carbon System Installation and Operation _ September 24, 2001 Page -2- Condor is proposing to install two Waterlink Barneby Sutcliffe VX1000VV 1000-pound carbon vessels adjacent to the existing trailer-mounted thermal oxidation system. The trailer-mounted system includes a vapor extraction blower in addition to the thermal oxidation unit. Condor will simply reroute the influent from the existing extraction blower to the new carbon vessels. Air sampling ports will be placed at the inlet, outlet, and between the two units. The operation will consist of both maintenance of the blower unit and periodic changeout of the carbon. In an effort to maximize the carbon use, changeout will occur in the first carbon unit when breakthrough is detected in the second carbon unit. The procedure will be as follows: • Upon initial operation, the inlet, outlet, and between-unit air concentrations will be measured with a PID. A sample from each location will be collected for laboratory analysis for BTEX/MTBE. • Weekly for the first month, and monthly thereafter, concentrations will be monitored with a PID. Samples will be collected from each location for laboratory analysis of BTEX/MTBE on a quarterly basis. • Upon measurable breakthrough from the second carbon unit, the carbon in the first unit will be replaced with virgin coconut shell vapor phase carbon. The units will be reversed in flow direction with the partially used unit as the first unit and new carbon in the second unit. • The air permit requires 95% efficiency with a maximum of 2 pounds per day of volatile organic compounds (VOC) release. Based on a correction factor determined from laboratory data in March of 1999, at a flow rate of 250 cubic feet per minute, a PID-measured concentration of 13 .3 ppm would equate to a release of approximately two (2) pounds per day. Considering 2 pounds per day a de minimis extraction rate, when the influent PID readings drop below 10 ppm, the blower will be shut off. The system will be restarted approximately one (1) month after shutdown and the influent will be measured. The system will remain in operation as long as the influent PID concentration is greater than 10 ppm. When influent concentrations remain below 10 ppm upon startup, vapor treatment will be complete, and the system will be dismantled. Report Condor will prepare a report providing the results of the initial installation and sampling. Subsequent monitoring results will be included in the quarterly groundwater monitoring reports. Any system shut down will be reported to the PHS/EHD. Schedule Condor has already submitted applications both to the Underground Storage Tank (UST) Fund for pre- approval and to the San Joaquin Valley Air Pollution Control District (SJVAPCD) for permit modification. Upon approval of this work plan by the PHS/EHD, pre-approval from the California UST Clean-up Fund, permit approval from the SJVAPCD, and notification from Canepa's Car Wash to proceed, Condor will order the carbon units and schedule delivery and installation. The carbon units are n L1� CONDOR