RFP: Northwest Water Treatment Plant Sludge Dewatering, Removal, and Disposal

Contract	RFP: Northwest Water Treatment Plant Sludge Dewatering, Removal, and Disposal
Status	Completed
Bids due	2025-01-28
Scope of work	RFP: Northwest Water Treatment Plant Sludge Dewatering, Removal, and Disposal Click Here to view Full Document Addendum No. 1 Full Document OVERVIEW Brunswick County is soliciting sealed proposals for dewatering, removal, and disposal of sludge at Brunswick County’s Northwest Water Treatment Plant (“NWTP”). The NWTP is a 24mgd water treatment facility. It was constructed in 1984 and treats water from the Cape Fear River via the Kings Bluff Pump Station in Bladen County. Currently, the average raw water flow for 2024 is 14.11 million gallons a day. The NWTP utilizes chlorine dioxide, polyaluminumchloride, polymer, and sodium hydroxide as its primary chemicals in the treatment of drinking water. Sodium fluorosilicate, orthophosphate, chlorine, and ammonia are also used to finish the water before being pumped to the distribution system. River sediment is removed from the treatment process via two routes, one being clarifier sludge blowdowns and the other filter backwashes. Each process has its own unique percent solids and can vary widely. Solids from these processes travel to a two-million gallon settling lagoon. The lagoon is equipped with aluminum handrails, a 20/1 sloped bottom, floor pressure relief valves, a supernatant collector weir, and two 1,200gpm Wemco hydrostal pumps. These two pumps are capable of pumping most of the sludge from the lagoon and transferring it to the 80’ circular sludge thickening unit. In the thickening unit, sludge can be stored and thickened until ready to be removed. One 400gpm Wemco hyrdostal pump is currently available along with another 4” attachment point for another pump (contractor supplied). The initial term of the contract, if awarded, shall be three (3) years. The initial term may be followed by three (3) successive options to renew for one (1) year each. Each renewal option is to be exercised automatically unless either party gives notice of its intent not to renew at least ninety (90) days prior to the end of the then-current term. SCOPE OF WORK Brunswick County has established the following objectives for this project. Any changes to the specifications or Scope of Work will be made in the form of an addendum to this Request for Proposals and will be supplied to all known prospective contractors and posted on the Brunswick County website. Notwithstanding the foregoing, contractors will be responsible for ensuring that they have all addenda. Brunswick County may negotiate and refine the final Scope of Work with the selected contractor. Brunswick County reserves the right to negotiate additional services with the selected contractor at any time after the initial contract award. A. Mobilization Contractor must mobilize, be set up to process, and begin processing sludge within two (2) weeks of notice by County. If contractor fails to meet said deadline through no fault of County, contractor may be held liable to County for obtaining other means of sludge removal. B. Required Sludge Levels Contractor will be
Category	Public Utilities
Posted	2024-12-20
Bid posting	Open

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