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711 Materials, Inc. <br /> ALTA <br /> Spill Prevention, Control and Countermeasure Plan ENVIRONMENTAL <br /> Table 2—Potential Spill Scenarios <br /> Max Method of <br /> Source Type of Failure Volume Rate(Gal/Hr) Direction of Flow Containment <br /> Released <br /> Truck Loading/Unloading Operations <br /> Diesel Rupture, Piping Failure, Contents of Gradual to Spill kits on contrctor <br /> Deliveries Valve Failure Truck Instantaneous South and West delivery trucks, drain <br /> (<_8,000 gal) inlet covers, Bay Saver® <br /> Motor and Rupture, Piping Failure, Contents of Gradual to <br /> Hydraulic Oil Valve Failure Truck Instantaneous East Service Pit <br /> Deliveries <br /> Used Oil Rupture, Piping Failure, Contents of Gradual to West Steam Cleaner Recycler <br /> Pickup Valve Failure Truck Instantaneous <br /> 6.8 Containment and/or Diversionary Structures and Equipment <br /> Ref:40 CFR 112.7(c)-(d); Ref:EPA Response to Industry Questions, <br /> Sep.30,2002:Guidance on berms,dikes,liners etc.used in <br /> containment,Section 112.7(c). <br /> Containment structures and other equipment in use at the Facility to prevent discharged oil <br /> from reaching navigable waters are summarized in Table 1, Section 6.1. The 12,000-gallon <br /> diesel tank is constructed with full secondary containment. The tanks and drums inside of the <br /> shop are contained by liquid-tight raised sills directing spills to an adjacent service pit, and <br /> the outside used oil tank is fully contained by steel secondary containment. The secondary <br /> containment is adequately designed and has sufficient structural strength and compatibility <br /> with the contents. The tanks and secondary containment are not expected to collapse, <br /> rupture, or corrode. The secondary containment has sufficient volume for 100 percent of the <br /> largest tank capacity and none of the secondary containment is subject to storm water. <br /> The storm drains south and east of the administrative offices are routed through the Bay <br /> Saver®which will contain sediments and limited amounts of petroleum. <br /> Spill Response Equipment <br /> The Facility is prepared to control and remove any quantity of oil discharged that may be <br /> harmful. The following manpower, equipment, and materials are available as needed: <br /> • Sorbent material kits; <br /> • Safety equipment; and <br /> • Subcontractor to provide material containment and clean-up in large quantities. <br /> As part of the plant's monthly SPCC inspection, the spill response equipment supply is <br /> verified and the need for restocking equipment is identified. <br /> Alta Environmental 17 <br /> BASR-19-8895 <br /> July 3, 2019 <br />