Yosemite National Park, Contract Management, P.O. Box 700-W, El Portal, CA 95318

45 -- PURCHASE VAULT TOILET TANKS, VENTS, AND TOILET RISERS Sol 1443-IB8800-96-008, Due 071596, POC Jill Clayton, Contracting, (209) 379-1050, Roy Navik, Contracting Officer, (209) 379-1038. Purchase vault toilet tanks, ventilation systems, toilet risers, and seats only. The toilet building, including concrete floor, frame, exterior and interior will be constructed by the NPS. The tank must be designed for below-grade installation with a concrete slab above, be approximately 750 gallons in capacity, and be light enough to be installed by a two-person crew using a backhoe. The tank will be ballasted by a park-installed concrete pad placed at grade over the tank. The tank shall include a minimum 16-inch diameter pump-out access extended at least six inches above the tank complete with a lid. The tank also will have an opening and a sleeve that extends six inches above the tank to accept the toilet riser. The size and orientation of the tank shall be such that several could be placed side by side and the toilet openings would be no more than 82 inches apart. The tank also shall have an opening and a sleeve to accept a ventilation stack. The ventilation of the toilet, tank, and stack shall meet the USFS performance requirements of the Sweet Smelling Toilet. The stack will be part of the purchase and is to be at least 15 feet in length. The toilet riser shall be white plastic with a smooth surface and have a continuous interior sleeve that extends below the flange of the tank. The toilet riser shall include a white toilet seat and lid. Five units will be included in the base bid, with an option for additional units. (172)

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