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Brown Sand,Inc. <br /> Spill Prevention, Control, and Countermeasures Plan Page: 19 <br /> June 3, 2020 <br /> area. Facility spill response procedures are closely followed as outlined in the <br /> Spill/Discharge Response Plan, Section 4.0. <br /> Mode of Failure Maximum Rate of Flow Direction of Flow <br /> Quantity <br /> Storage Tank Leak or 6,000 gallons Based on the largest Gradual to Contained within interstitial space of <br /> Failure tank size instantaneous double walled tank. <br /> A spill resulting from a tank <br /> Not greater than overfilling would flow in a <br /> 150 GPM,based on southwesterly direction where it <br /> Tank Overflow < 150 gallons pump rate and would collect in the truck parking <br /> response time of 1 area and remain onsite(Figure 6), <br /> minute procedures would be followed as <br /> outlined in Section 4.0 of this plan. <br /> A spill resulting from the tank <br /> Not greater than truck's connections would flow in a <br /> 150 GPM based on southwesterly direction where it <br /> Tank Truck Unloading < 150 gallons pump rate and would collect in the truck parking <br /> response time of 1 area and remain onsite(Figure 6), <br /> minute procedures would be followed as <br /> outlined in Section 4.0 of this plan. <br /> Not greater than 15 A spill would flow in a southwesterly <br /> GPM,based on direction where it would collect in <br /> Fuel Dispensing < 15 gallons pump rate and the truck parking area and remain <br /> response time of 1 onsite(Figure 6),procedures would <br /> minute be followed as outlined in Section <br /> 4.0 of this plan. <br /> 3.5.6 Drum Storage Area (Map Location #7) <br /> There would be a reasonable potential for a spill or leak from the 55-gallon drums <br /> stored in the drum storage area. The maximum quantity of product that could be <br /> spilled would be the maximum capacity of the largest tank volume of 55 gallons. <br /> Any spills or leaks would be contained within the concrete secondary containment <br /> capable of containing 515 gallons. Facility spill response procedures are closely <br /> followed as outlined in the Spill/Discharge Response Plan, Section 4.0. <br />