McDowell Roofs Package 3 – Cancelled

This project consists of replacing various roofs at the McDowell Creek Wastewater Treatment Plant.  This package will potentially include the replacement of four separate roofs.

FY21 Unspecified Time and Materials Water & Sewer Repairs

The Project consists of providing equipment, vehicles, machinery, implements, tools, supplies, incidentals, and skilled personnel to complete unspecified modifications, maintenance, and repairs to existing water and sewer lines in the Charlotte Water service area.

Irwin Rehabilitation Improvements

The Project consists of work in multiple process areas as follows:

  • Replacement of the roof and HVAC equipment at the Administration building.
  • Modifications to the existing grit removal chamber at the flow equalization facilities to include a 7-foot Parshall flume.
  • Spot concrete, sealant, and pavement repairs at the flow equalization facilities.
  • Installation of a third mechanical bar screen in the existing Influent Pump Station. The new mechanical screen is pre-purchased by the Owner. The Contractor will administer submittals and handle receipt, installation, startup, testing, and commissioning.
  • Installation of a new eductor system on all the Influent pumps to automatically vent the pump casings.
  • Modifications to the 18-inch discharge piping of two influent pumps.
  • Installation of a new process analyzer (Chemscan) near the Aeration Basins. The analyzer equipment, FRP enclosure, and sample pumps are pre-purchased by the Owner. The Contractor will administer submittals and handle receipt, installation, startup, testing, and commissioning.
  • Modifications to the plant’s effluent piping (42 and 30 inches in diameter) including replacement of a flowmeter vault with a new vault. The new meter will be provided by the Owner. This work will require bypass pumping.
  • Replacement of the roof and select HVAC equipment at the Old Chlorine Building (Additive Alternate 1).

Sugar and Irwin UV Replacement

This project is to replace the ultraviolet disinfection equipment at the Sugar Creek Wastewater Treatment Plant and the Irwin Creek WWTP.  The scope of the work also includes the replacement of the effluent filter piping and valves in addition to concrete channel work.

Ashe Plantation WWTP – Phase II Upgrades

The Project consists of the demolition of the existing 0.1 MGD “packaged” WWTP (flow eq, sludge holding, extended aeration, clarifiers), filters, generator, shed and select yard piping. The new infrastructure includes a new 0.1 MGD “packaged” WWTP (flow eq, sludge holding, extended aeration), two clarifiers, pre-engineered office/lab building, generator and the associated yard piping, site work, electrical and instrumentation. This scope of work also includes the relocation of and existing 8” gravity sewer line.

Electrical Maintenance and Repair Services

Charlotte Water facilities, which include wastewater treatment plants (WWTP), water treatment plants (WTP), and large regional and/or submersible Lift Stations, require industrial-grade electrical services. The Company shall provide industrial electrical maintenance and repair services for Charlotte Water’s facilities.

McAlpine Creek WWMF Nutrient Harvesting

While nutrient harvesting has not yet been implemented by CLTWater at any  of its wastewater treatment facilities, CLTWater strives to promote beneficial reuse at the McAlpine Creek WWMF and across its other wastewater treatment facilities.  To maximize economies of scale, a nutrient harvesting facility (Facility) at the McAlpine Creek WWMF would create the highest current and future value proposition for CLTWater and the treatment plant network.  Currently, primary sludge (PS) and waste activated sludge (WAS) from two of the five wastewater treatment facilities are processed at McAlpine Creek WWMF.

In the future, PS and WAS from four of six wastewater treatment facilities will be processed at the McAlpine Creek WWMF.  Dewatering centrate is high strength waste typically recycled within the treatment plant for processing.  Implementation of a Facility would allow CLTWater to create a product that can be beneficially reused (i.e., product to be bagged or bulk shipped and sold) and gain some treatment capacity at the McAlpine Creek WWMF. Designing, constructing, and operating the Facility at the McAlpine Creek WWMF is one component of implementing the overall CLTWater nutrient management and biosolids diversification strategy.

McMullen Creek Basin Rehabilitation

There are multiple project sites within the McMullen Creek basin. Sewer rehabilitation will be performed in sub-area sewer collection systems in the northern portion of the McMullen Basin and on portions of the existing McMullen trunkline and manholes within existing easements. Sewer rehabilitation will be performed on the existing collection system within existing easements and public road right-of-ways.