OICC, Bldg. 262, Naval Weapons Station, Concord, 10 Delta St., Concord, CA 94520-5009

Z -- REMOVE AND REPLACE GREASE INTERCEPTOR FOR BUILDING 398 AT THE NAVAL WEAPONS STATION, CONCORD, CALIFORNIA SOL N62474-96-Q-6539 DUE 070396. Contact Dina Moore, 510/246-2425/Contracting Officer T.A. Chin. The Contractor shall furnish all the supervision, transportation, equipment, tools, material, supplies, and labor to remove the existing grease interceptor and replace it with a new grease interceptor. The new grease interceptor shall be a standard precast, reinforced concrete, interior coated, 1500 gallon capacity, grease interceptor. The new grease interceptor shall be installed below ground under the loading dock driveway, with a traffic slab and manhole reinforcing, and shall be plumbed separately under the roadway to the sanitary sewer manhole located near the southwest corner of Building 398. All concrete and asphalt removed shall be replaced to match existing concrete and pavement. The existing grease interceptor shall be completely removed, existing discharge plumbing line capped and existing inlet plumbing lines rerouted to the new grease interceptor. The disposers, KE-24 and KE-87, and the pre-rinse unit, KE-23 shall be tied-in to the grease interceptor system. The tile floor is to be completely repaired and retiled to match the surrounding floor. The work must be scheduled to minimize interruption of the General Mess. The material and installation shall meet all applicable codes and regulations. All material used shall be new. The existing 50 gpm, 100 lb. capacity grease interceptor is a metal box, embedded in concrete, installed flush with the floor, of the dishroom, in the General Mess. The existing plumbing is 4 inch galvanized steel with threaded ends. The new grease interceptor shall be: 1500 gallon capacity; precast concrete, Portland Cement Type II, minimum compressive strength 3000 psi at 28 days, reinforcing bar intermediate grade ASTM A615; coated inside with a black petroleum based primer conforming to ASTM D-41. The new grease interceptor is to be installed under the loading dock driveway. A 9 inch thick, reinforced concrete, traffic slab, with cast iron manholes and manhole reinforcing will be required. Inlet piping to, and discharge piping from the new grease interceptor to the sanitary sewer manhole shall be ABS pipe, ASTM-D-2751, installed with a trace wire in an underground trench. The precast unit shall be placed on natural soil or approved compacted, fill installed in accordance with the Manual of Septic System Practice, the Uniform Building Code and the manufacturers instructions. ADDITIONAL WORK REQUIRED INCLUDES: (1) Some saw cutting of existing asphalt pavement and concrete curb, sidewalk and the loading dock slab will be required. All removed concrete and asphalt shall be replaced to match existing. The curbs, gutters and sidewalks require 3 inches compacted gravel base, the loading dock slab and the asphalt road require 12 inches compacted gravel base. (2) In order to reroute the existing waste piping to the new grease interceptor, evacuation under the perimeter foundation will be required. Trench and foundation excavation requires 95% backfill compaction and sand bedding for the piping. The hole in the sanitary sewer manhole required for the new discharge pipe must be grouted around the pipe. (3) The disturbed floor in the dishroom shall be completely repaired to match the existing floor, (compacted backfill, 6 inches compacted gravel, 6 mil vapor barrier, 2 inches sand, 6 inches concrete with #3 rebar 12 inches on center, mortar bed, quarry tile and grout to match existing tile floor). A cleanout equal to the existing cleanouts is required in the floor, in line with the grease interceptor inlet piping. (4) The waste piping for the existing disposer, KE-87, in the dishroom, shall be rerouted to the grease interceptor inlet piping located under the existing dishwater, KE-89. The disposer and the dishwasher shall share the same underfloor waste piping. The existing disposer discharge point shall be capped. No floor demolition is required for this tie-in. (5) The waste piping for the existing pre-rinse unit, KE-23, and disposer, KE-24 in the utensil cleaning room, shall be rerouted through the wall to the grease interceptor piping used by the sink, KE-21. The existing discharge point shall be capped. The disturbed wall shall completely repaired to match the existing wall. (6) Any landscaping, or landscape irrigation, damaged or disturbed shall be completely restored. The Contractor shall be responsible for removal and disposal of all job related debris from the Naval Weapons Station, Concord. To obtain copies of the Scope of Work or to arrange for a site visit, call (510) 246-2425. Quotes are due 3 July 1996 not later than 4:00 PM local time. Send quotes to Officer in Charge of Construction, Naval Weapons Station, Concord, Bldg 262, 10 Delta St. Concord, CA 94520-5100. The SIC code is 1711, the related small business size standard is $7.0 million. The resulting contract will be a firm fixed price contract. The period of performance is 90 days from date of award. (162)

Loren Data Corp. http://www.ld.com (SYN# 0140 19960614\Z-0001.SOL)