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1.5MG Tank Rehab Out for Bid

Thursday, June 29, 2017

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The Charter Township of Waterford is seeking contractors for the rehabilitation of the existing Cass Lake Tank, located in Waterford, Michigan. The 1.5 million gallon toroellipse elevated water storage tank will be cleaned and recoated.

Bids are due July 11.

Scope of Work

The awarded contractor will oversee the cleaning and recoating of Cass Lake Tank, a welded elevated water storage tank. Built in 1964 by Pitt-Des Moines, the tank has a height-to-low water line of 88 feet and was last painted in 2003, when the tank’s exterior was given an aluminum overcoat.

Cass Lake Tank
Courtesy of Thomas Rounds

The Charter Township of Waterford, Michigan, is seeking contractors for the rehabilitation of the 1.5 million-gallon Cass Lake Tank.

When working on the exterior section of the tank, the contractor will first pressure wash the tank at approximately 5,000 to 10,000 psi and abrasive blast-clean exterior surfaces to a Bare Metal finish (SSPC-SP11). The recoating will involve a two-coat tinted aluminum alkyd overcoat system.

The wet interior has not been rehabilitated since the existing epoxy system was applied in 1992. The contractor this year will abrasive blast-clean the wet interior to a Near White finish (SSPC-SP10), followed by the application of a three-coat zinc epoxy system.

Dry interior surfaces, including the top platform, step-off platform, rise baseplate and access tube, will be abrasive blast-cleaned to a Commercial finish (SSPC-SP6). The access tube will be coated with a three-coat epoxy system. Both the top platform and foundation of the tank will be coated with a three-coat epoxy system. All remaining prepared dry interior surfaces will be coated with a two-coat aluminum alkyd system.

Additional Specs

In addition to cleaning and coating, the project will also include the removal and re-installment of a cathodic protection system; the caulking of unsealed antenna cable penetrations on the roof; and the application of a polyurethane caulk to roof lap seams. The contractor should coordinate with the antenna company so that they may alter the routing of cables to accommodate the exterior coating work. Sensitive equipment should also be protected during any water cleaning, blasting or painting.

Project Manager Thomas Rounds explains in an inspection report that currently, the coating is in good condition overall. Coating failures are mostly isolated to appurtenances such as the anchor bolts on the riser and the roof handrail, only very minor failures in areas including the base of the riser, with no loss of topcoat in areas tested.

The project is scheduled to begin on or after Sept. 5, with substantial completion by Oct. 27. Alternate spring schedule will begin on or after April 9, 2018, with substantial completion by June 8, 2018. The tank should be out of service for no more than 45 days.

Reported by Paint BidTracker, a construction reporting service devoted to identifying contracting opportunities for the coatings community. Try PaintBidTracker free!


Tagged categories: Bidding; contract painting leads; Contracts; Government contracts; North America; Paint BidTracker; potable water; Program/Project Management; Water Tanks

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