McAlpine Wastewater Treatment Plant Dewatering Building HVAC Replacement

Replacing the McAlpine Waste Water Treatment Plant Dewatering Building HVAC system including all associated mechanical equipment, electrical, I&C, and ancillary components.

This project includes the HVAC upgrades at McAlpine Creek WWTP Thickening/Dewatering Building. The upgrades would include the replacement of air handling units, make up air units, exhaust fans, ductworks, the addition of split AC units, and the addition of an alarm and monitoring system for HVAC equipment. The scope will also include some structural and architectural rehabilitation needed to accommodate new ductwork and HVAC equipment.

Sugar Creek Wastewater Treatment Plant Alkalinity Storage Replacement

This project includes the removal of two high-density polyethene chemical storage tanks and mixers, the construction of a new chemical storage tank containment area, the installation of three new chemical storage tanks (two in the existing containment area and one in the new containment area), installation of a chemical mixer at each tank, installation of a new chemical metering pump in the new containment area, construction of an enclosed pump room within the containment areas, installation of new and replacement of piping, and construction of a canopy over the new containment area.

 

Briar Creek and Paw Creek Sewer Rehabilitation

This project consists of the sanitary sewer rehabilitation of approximately 13,500 linear feet of sewer outfall with cured-in-place lining. This project will extend along the Briar Creek and Paw Creek outfalls.  A 112 linear feet 24-inch diversion sewer will also be constructed under Briar Creek along with a 118 linear feet 8-inch linear feet collector sewer.

FY23 Small Diameter Water/Sewer Service Contract #2 (Re-bid)

This contract is for water and sanitary sewer service installations including connection to the existing public main, which extends a small diameter line to the property.  Additionally, a water meter box or sanitary sewer cleanout is included. Customers pay connection fees for the installation service, which is based on costs incurred by Charlotte Water in these contracts. The work covered by this contract will provide approximately 800 total services.

McAlpine 54″ Sanitary Sewer Rehabilitation Phase 4

The project consists rehabilitation of approximately 4,784 feet of 8-inch and 8,320 feet of 54-inch sanitary sewer via cured in-place pipe lining (CIPP) including all preparatory work such as sewer cleaning and television inspection, rehabilitation of connecting manholes as specified, bypass pumping of wastewater flows, and complete restoration.

Biosolids Thermal Hydrolysis Process Design Build Project

Charlotte Water intends to implement the Thermal Hydrolysis Process (THP) and other biosolids treatment improvements at the McAlpine Creek Wastewater Management Facility (WWMF) utilizing the Progressive-Design-Build delivery method to create a sustainable, regionalized, diversified, and resilient biosolids management program. The project will include the design and construction of multiple facilities at the McAlpine Creek WWMF including a Pre-Dewatering building with associated process equipment, screened sludge storage tanks, THP systems as furnished by CAMBI, improvements to the existing anaerobic digester complex including steam boilers, replacement odor control facility, sidestream deammonification treatment, electrical distribution system improvements, and other ancillary components.