Navy Public Works Center, 2730 McKean St, Ste 1, San Diego, CA 92136-5294

Z -- ABOVE GROUNG STORAGE TANKS SOL N63387-97-Q-L590 DUE 073097 POC Kohala Hembre, Purchasing Agent (Code 846), (619)556-9051, FAX: (619)556-7775 2 EACH Provide and install two new single wall 20,000 gallon horizontally mounted above ground storage tanks with flat ends. Tanks shall conform to UL-142, NFPA, and FM standards and shall bear UL-142 permanently affixed, and engrave brass label with tank construction specifications. The delivery and installation location in Naval Submarine Base, San Diego, CA. Government will unload and position tanks on existing saddles and contractor shall bolt tanks to existing saddles. Equipment, delivery, installation and testing shall be completed within 100 days of award of contract. Each tank shall have two saddles located 6 feet from each end of the tank. Tanks shall be designed for 5 PSIG internal pressure and vacuum. Tanks will store sea water containing less than 50 percent diesel fuel. Tanks shall be shop-built of steel conforming to ASTM A36. Each tank shall be twelve feet in diameter and twenty five feet in length and have two steel saddle attachment plates eleven inches wide welded to the wear plates on both sides of the tank. The attachment plates shall be located approximately six feet from the center of each plate to the end of each tank and forty inches from the bottom of the tank measured vertically. Each attachment plate shall have three 1 1/8 inch holes to allow bolting to saddles, the distance between holes shall be 3 1/2 inches (center to center) and the outside holes shall be 2 inches from the end of the attachment plate (center to edge of plate). Contractor shall field verify exact location of attachment plates prior to delivery to ensure that tanks can be bolted to existing saddles. Side one of each tank shall have the following openings: 1 each 6 inch flange fitting 1 foot from the bottom of the tank on center. Side two of each tank shall have the following openings: 1 each 3 inch flanged fitting 1 foot from the bottom of the tank on center and one each 3 inch flanged fitting, on the inside and outside of the tank, 2 feet from the bottom of the tank on center. The top of each tank shall have the following openings; End 1: one each 6 inch flanged fitting 16 inches from the end of the tank on center, two each 4 inch flanges fittings 12 inches apart (center to center) and the nearest 4 inch flanged fitting shall be 12 inches from the 6 inch flanged fitting (center to center), one each 24 inch manhole with hinged top and tightening logs 30 inches from the nearest 4 inch flanged fitting (center to center). End 2: one each 6 inch flanged fitting 16 inches from the end of the tank on center; one each 4 inch flanged fitting 12 inches from the 6 inch flanged fitting (center to center); one each 4 inch flanged fitting equipped with rupture disc 12 inches from the 4 inch flanged fitting (center to center); and one each 16 inch blank flanged emergency vent 30 inches from the nearest 4 inch flanged fitting. Each tank shall have a vertical exterior ladder extending to the 24 inch manhole and an interior ladder accessible from the 24 inch manhole. The ladders shall have slip resistant rings 12 inches on center and shall be designed and fabricated per OSHA requirements. Bolts, nuts, and washers shall be "corrosion resistant" which is defined as materials that are inherently corrosion resistant and not a corrosion-resistant coating such as provided by the galvanizing process. Each tank shall have lifting lugs appropriately spaced on top to facilitate unloading on-site. Tank interiors shall have amine-cured epoxy coating (Ameron-Amercoat 395 or equal) suitable for continuous immersion in saltwater/diesel fuel mixture. Tank exteriors shall have primer and two coats of enamel paint suitable to protect the tank in a coastal marine environment and shall match government supplied color. Interior and exterior coatings shall be applied per coating manufacturers recommendations. The internal coating shall be tested for holidays (pin holes) by either low or high voltage spark testing. Tanks interior coating shall also be tested for hardness and adhesion in accordance with ASTM D4541; and dry film thickness ; and dry film thickness in accordance with SSPAC-PA2. Test results shall be within specifications of coating manufacturer. All test results 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 and installation. Tanks shall be inspected and tested before shipment from the factory by manufacturer as a completely assembled vessel ready for installation. Before delivery contractor shall perform tightness test and hydrostatic strength per UL-142. After installation, contractor shall also perform a tightness test and hydrostatic test per UL-142 to ensure that no damage has occurred in shipping. The tanks must pass the assessment requirements on CCR Title 22 Section 66265.192. Contractor shall provide approval submittals for government review prior to installation. Submittals shall include: tank design drawing showing all components, and design calculations for tank and tank attachment to existing saddles signed and sealed by California Registered Structural Engineer. Before delivery, contractor shall submit a written report stating that each tank is watertight, welds have been inspected and are sound, interior coating is 100 percent holiday free, exterior of tanks been coated per government specifications and manufacturers recommendations, and tank meets the local seismic Zone 4 requirements. Contractor will provide the Government signed test results for the field testing of the tanks. If the tanks do not meet requirements of this specification, such as poor workmanship and wrong fabrications 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 is to provide a one year warranty covering all tank components. The contractor shall repair or replace any defective components at no cost to the government for a period of one year following installation. No solicitations shall be mailed out. FAX or mail quotes will be accepted. No telephone quotes will be accepted. See Numbered Note(s): 1. (0195)

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