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Precious Metals Recovery LLC RCRA Permit Application Dry Hills ...

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Tank alarms will be provided in the Control Room to notify personnel when the tank levels are<br />

above normal levels. Furthermore, interlocks will be provided from the level measurement<br />

transmitters, and are designed to stop flow automatically upon detecting high levels.<br />

While unlikely to occur, a network of epoxy coated concreted curbs, trenches, and sumps is<br />

designed to collect fluids if a tank overflows or leaks (see H340940-0000-50-015-0008 in<br />

Appendix 1-A). High levels in the sumps will be annunciated in the Control Room. Fluids that<br />

collect in these sumps will be managed as discussed in Section 22.8.2 and Section 22.8.3.<br />

The ASTs will be situated such that the tank may be visually inspected. They will be fixed in<br />

place on steel frame skids and provided with secondary containment for at least 100% of the<br />

largest tank volume within the area.<br />

23.1 Tanks<br />

All tanks will be covered. Tank systems will be designed to prevent the release of any hazardous<br />

materials to the environment. Tanks handling hazardous materials will be manufactured of FRP.<br />

Tanks will be selected based on suitability for handling of the process fluid. FRP tanks will be<br />

built in accordance with the applicable ASME standards. Tank strength and wall thickness are<br />

designed to be sufficient for the process fluid(s) intended to be contained in them, and designed<br />

to withstand the pressures, temperatures, and stresses of day-to-day operations. Table 23.1-1<br />

identifies the tank dimensions, capacities, and their locations at the proposed TSF.<br />

Table 23.1-1: Specifications for <strong>RCRA</strong> Tanks and Reagent Storage Tanks<br />

Caustic Soda Storage<br />

Tank*<br />

Tank Dimensions<br />

Hydrochloric Acid Storage<br />

Tank*<br />

Material of<br />

Construction<br />

Design<br />

Capacity<br />

(gallons)<br />

General<br />

Location<br />

5 ft. D x 7.5 ft. H FRP 750 Process Area<br />

3 ft. D x 5 ft. H FRP 100 Process Area<br />

Decomposition Tank 5 ft. D x 6 ft. H FRP 400 Process Area<br />

Waste Solution Tank 5 ft. D x 6 ft. H FRP 400 Process Area<br />

Waste Solution Collection<br />

Tank<br />

Waste Solution Settling<br />

Tank<br />

Waste Solution Storage<br />

Tank #1<br />

5 ft. D x 6 ft. H FRP 400 Process Area<br />

3.5 ft. D x 6.5 ft.<br />

H<br />

FRP 300 Process Area<br />

7.5 ft. D x 15 ft. H FRP 3,600 Process Area<br />

PMR <strong>RCRA</strong> <strong>Permit</strong> <strong>Application</strong>, <strong>Dry</strong> <strong>Hills</strong> Facility Page 118<br />

JBR Environmental Consultants, Inc. | HATCH March 2013

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