Navy Public Works Center Code 846 Bldg 3213 2730 McKean St Ste 1 San Diego CA 92136-5294

81 -- STORAGE TANKS SOL N63387-97-Q-K003 DUE 121397 POC Inge Stillwell, Lead Purchasing Agent, (619)556-8723, Jessie Bermudez, Contracting Officer, (619)5567244, FAX:(619)556-7775. 2 EACH ABOVE GROUND STORAGE TANKS Provide and install two (2) new single wall 20,000 gallon horizontally mounted above ground storage tanks that conform to UL- 142 and API STD-650. Tanks will store sea water containing less than 20% diesel fuel. Tank shall be: shop-built of steel conforming to ASTM A36 with flat plate ends, no more than 14 feet in height (with saddles) and 25 feet in length, have steel saddles welded with at least 6 feet from one end of each tank, and have flanged fittings and a ladder to allow filling, emptying, and maintenance. Tank shall bear UL 142 permanently affixed, engraved brass label. Tank design pressure shall be 15 PSIG. Tanks shall have corrosion resistant interior and exterior coating. Government will unload and position tank on existing 36-foot x 26-foot concrete slab. Contractor will anchor tanks according to contractor design calculations signed by a Registered Professional Engineer in California with HILTI HVA adhesive anchoring system or equivalent. Tanks and installation shall pass the requirements of CCR Title 22 Section 66265.192. After installation, contractor shall perform a tightness test and hydrostatic strength test per UL-142. Contractors proposal shall provide tank drawings showing all components. Contractor shall submit a written report stating that each tank is watertight, welds are sound, and interior coating is 100% holiday free. The delivery and installation location is Naval Submarine Base, San Diego, CA. Tanks shall be shop-built of steel with flat plate ends. Tank shall bear UL 142 permanently affixed, engraved brass label. Tank design pressure shall be 15 PSIG. 3.2 End 1 of each tank shall have at least the following openings (distances measured to center of opening): (1) 6-inch flanged opening 1 foot from the bottom of the tank on center and (1) 24-inch flanged manhole opening 3 feet from the bottom of the tank on center. End 2 of each tank shall have at least the following openings: (1) 3-inch flanged opening 1 foot from the bottom of the tank on center, (1) 3-inch flanged opening 2 feet from the bottom of the tank on center, and (1) 3-inch flanged opening 3 feet from the bottom of the tank on center. The top of each tank shall have at least the following openings: (1) 6- inch flanged opening 2 feet from End 1 of the tank on center, (1) 2-inch flanged opening 4 feet from End 1 of the tank on center, (1) 24-inch manhole 7 feet from End 1 of the tank on center, (1) 2-inch flanged opening 10 feet from End 1 of the tank on center and (1) 6-inch flanged opening 2 feet from End 2 of the tank on center. Each tank shall have an vertical exterior ladder centered 7 feet from End 1 of the tank with slip resistant rungs at 12-inches on-center, design and fabricate per OSHA requirements. Tank saddles shall be designed to not rest on or obstruct existing manhole on concrete. Existing manhole is 3.5 feet in diameter, is elevated 4 inches above the grade of the slab, and is centered 40 inches from the 36 foot side and 12 feet, 8 inches from the 26 foot side. Tank interiors shall have a two part phenolic epoxy coating conforming to military specification MIL-P-2326, amendment 2, Type III, Class 1. Tank exterior primer shall conform to SSPC Paint 23 and finish coat shall conform to SSPC Paint 24 matched to Government supplied color and shall be suitable to protect the tank in a coastal marine environment. Each tank shall have lifting lugs to facilitate unloading and positioning on-site. Bolts, washers, nuts, screws, pins, and fittings as required shall be ''corrosion resistant'', which is defined as materials that are inherently corrosion resistant and not merely a corrosion-resistant coating, such as provided by the galvanizing process. Tanks shall be inspected and tested before shipment from the factory by manufacturer as a completely assembled vessel ready for installation. The tanks shall be tightness tested, using pressurized air, up to the manufacturer maximum pressure, followed by a soap test, in which soap is applied to the tank surface, and bubble formation indicates weld seam leaks. Tanks shall be tightness tested again on- site to ensure that no damage has occurred in shipping. Tanks internal coating shall be tested for hardness, adhesion in accordance with ASTM D4541, dry film thickness in accordance with SSPC-PA2. Test results shall be within specifications of coating manufacturer. The internal coating shall be tested for holidays (pin-holes) by high voltage spark testing. Inspection and test reports shall be supplied to government on Manufacturer's letterhead. The tanks external coating shall be visually inspected for defects. Contractor shall repair and/or replace areas of the coating system which are found to be damaged or defective upon delivery of equipment to the site. If the tanks do not meet requirements of this specification, such as poor workmanship and wrong fabrication dimensions, the tanks may be rejected. In the event Government rejects the tanks, the contractor shall remove the tanks at their expense and replace the tanks with acceptable tanks. Contractor shall anchor tanks according to design calculations by a Professional Engineer Licensed in California to resist the effects of a seismic event as specified by local building code. Government will unload and position tank in preparation for anchoring by contractor. The equipment and installation shall pass the structural assessment and installation assessment requirements of CCR Title 22 Section 66265.192. Contractor shall provide approval submittals for government review prior to installation. Submittals shall include manufacturer's data, tanks layout drawing showing all components, and design calculations. Contractor shall provide a written report stating that: tanks are watertight, welds are sound, the interior coatings are holiday free, and tanks have been shop painted per government specifications. Contractor is to provide a one year warranty covering all tank components. The contractor shall repair or replace any defective component at no cost to the Government for a period of one year following successful installation. Vendor shall provide bid with breakdown and shall provide a schedule for delivery and installation. Equipment delivery shall be completed by 1-10-97. Equipment installation and testing shall be completed by 1-17-97. Written solicitations will not be forwarded. Oral/FAX quotes will be accepted. Quotes received after COB on due date will not be considered. (0324)

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