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711 Materials, Inc. Q, ALTA Spill Prevention, Control and Countermeasure Plan ENVIRONMENTAL 9.0 FACILITY TANK TRUCK LOADING/UNLOADING Ref:40 CFR 112.7(h); Ref:SPCC Guidance for Regional Inspectors, Section 4.4.2 This section lists the specific requirements in 40 CFR 112.7(h) - Facility tank car and tank truck loading/unloading rack. The facility response addresses each requirement and describes how the facility complies. (1) Provide an interlocked warning light or physical barrier system, warning signs, wheel chocks or vehicle break interlock system in loading/unloading areas to prevent vehicles from departing before complete disconnection of flexible or fixed oil transfer lines. Facility Response: The Facility does not have any loading/unloading racks. Oil/petroleum products are transferred from delivery tank trucks through flexible hoses to the tanks. The following transfer operations include a description of facility procedures and practices when transferring oil/petroleum products from tanks to vehicles and/or equipment. • Preferably, transfer operations should be performed over an impervious surface (i.e., sound, intact concrete or asphalt pavement). If this is not possible, a drip pan or bucket must be placed below hose connections for transfers performed over a non-impervious surface. • Prior to transfer operations, the vehicle engine must be turned off and the brake set. • The fitting and product transfer hose must be visually checked for defects and replaced if necessary. • Hose valve ends for all petroleum products must have valves installed to limit spillage. • When the transfer operation is complete, the transfer hose must be returned to its proper storage location, and fully cleared from all vehicle drive areas. • Incidental spills must be cleaned up with absorbent materials, which should then be placed into containers for proper disposal in accordance with company policy. Spill cleanup material must be stored in a readily identified, accessible location. (2) Prior to filling and departure of any tank car or tank truck, closely inspect for discharges the lowermost drain and all outlets of such vehicles and if necessary, ensure that they are tightened, adjusted or replaced to prevent liquid discharge while in transit. Facility Response: All tank trucks are inspected after unloading and prior to departure for any discharges and to insure their outlets are properly closed, tightened and adjusted. Alta Environmental 22 BASR-19-8895 July 3, 2019