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1 A.7oichert&Son inc.Mobile Equipment Shop 103 N.'E'St.Stockton,CA. Remedial Action Plan March, 1994 �• content from approximately 3% to a minimum of approximately 19%. We recommend a "tum-key's application that is assembled by the manufacturer or vendor. The unit should provide the following in addition to meeting the minimum operational requirements: R • A fully automated control system including: LEL sensor and controller, process flow sensor and measurement, air pressure sensor, high limit temperature controller, emergency shutdown button and 3-pen chart recorder • If a thermal oxidizer unit is utilized for effluent treatment, it should be designed with the ability to easily convert to catalytic operation. This flexibility is recommended because inlet VOC concentrations are expected due decrease over time, and catalytic operation may be economically justified at a later date. • If a thermal oxidizer is utilized, benzene destruction efficiency must be sufficient to prevent the release of greater than 0.15 lbs/day benzene. • An auto-dialer capable of 24-hour service that can distinguish and report various shut-down or emergency conditions • An entrained liquid separator knock-out pot with 40--gallon storage • A fully automatic vapor control system for dilution air, flame safety, burner, temperature controller and shut-downs, total hour meter-runtime and flame arrestor • Fluid drains (double block and bleed and automatic fuel control valves) meeting NFPA, IRI standards • Minimum 13' stack with cooling air inlet • non-hazardous wiring • influent and effluent sample ports, and well inlet flow rate gauge. s • O2 gauge A sound enclosure may be warranted depending on site-specific location criteria The connection of the module to electric power should be completed by certified electrician and be completed in accordance with municipal and applicable codes. Construction of the conveyance piping should be completed by licensed contractor. 8