A.2.11.4 W9128A21B0003 Am-0004 - Specifications.pdf
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- Solicitation number
- W9128A21B0003
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This announcement is a solicitation notice for a design-bid-build construction project to remove and replace the existing vapor recovery system, underground storage tanks, and piping at Gas Station Facility 880 on Aliamanu Military Reservation in Hawaii. The project scope involves demolishing the three existing USTs and replacing them with new identical-size tanks in the same location. Additional work includes providing new electrical service to the dispenser pumps, installing new control wiring and conduits between field devices, and a period of performance of 300 calendar days. The project magnitude is estimated between $1,000,000 to $5,000,000. An organized site visit is scheduled for June 24, 2021 at 0900 hours local time. The solicitation will be issued as a small business set-aside using NAICS code 236220 with a size standard of $39,500,000 average annual revenue. The Army Corps of Engineers Honolulu District will award a fixed-price construction contract as a result of this notice. Interested parties should monitor the System for Award Management for any solicitation amendments and maintain an active registration.
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AMR880 Facility Service Station Design Complete Submittal Honolulu, Hawaii February 2021
2.6 TANK COMPONENTS
2.6.1 Tank Piping Penetrations
Provide a welded-in-place double tapered National Pipe Thread (NPT) coupling for each tank piping connection.
2.6.2 Tank Striker/Impact Plates
Provide an interior striker/impact plate under each tank manhole and pipe connection. Each plate must be a minimum of 1/4 inch in thickness, be larger in diameter than the tank penetration, fit the curvature of the tank bottom, and be completely coated in the same fashion as the interior tank bottom coating. Each plate must be welded to the tank bottom at the factory (full circumference connection). The welds must be non-destructive tested using the appropriate means.
2.6.3 Tank Venting
2.6.3.1 Pressure/Vacuum Vent
Tank vent outlet must be equipped with pressure-vacuum breather vent, aluminum construction with weather hood and with fluoroelastomer (FKM, Viton) pallet seat inserts, high density screens, cellular rubber gasket type cap, stainless steel internals, with pressure relief setting, vacuum relief setting, and venting/vacuum capacity per tank manufacturer.
2.7 TANK GAUGES
2.7.1 Stick Gauge
For each tank, provide 2 wooden stick gauges. Gauge length must allow the measurement of the entire level of fuel in the corresponding tank. Gauges must be compatible with the fuel to be measured (no swelling or damage from fuel contact). Provide gauge with non-sparking caps on each end.
Mark gauges in feet and inches. The smallest unit of measure on the gauge must be 1/16 inch.
2.7.2 Tank Strapping Table
Furnish 2 tank manufacturer certified strapping tables (calibration charts) for each tank. One of the tables must indicate the liquid contents in lliters for each 1 mm of tank depth and the other in gallons for 1/16 inch of tank depth. Strapping table volumes for all tanks 5,000 gallons and larger must be determined using physical measurements and not calculated values. For each tank, provide an electronic media file of each strapping table. For tanks larger than 5,000 gallons tank strapping must be performed after installation at the site.
2.7.3 Automatic Tank Gauge System (ATG)
Gauge system must be the mechanically or electronically actuated type that can continuously monitor a tank's usable liquid level storage capacity.
The system must provide a digital readout of a tank's liquid level in terms of inches and gallons. The system must be accurate to plus or minus 1/16 inch. The system must measure water accumulation in inches from 3/4 to 5 inches off the bottom of a storage tank. Construct system components to be chemically compatible with the fuel to be handled. For each tank monitored, provide a sending unit that transmits the digital readout from
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