Fiscal Year 22 Water Main Rehabilitation

This project will clean and apply a polymer coating to the interior walls of old, but still structurally sound cast iron water mains.  Also included is the replacement of all valves, hydrants, and galvanized service lines associated with each project.  The work completed in this contract will improve water quality and flow in the distribution system; consists of an undetermined number of individual projects consisting of water infrastructure rehabilitation; and/or replacements, which will be assigned by the Project Engineer.

Clarke Creek Pumping Station and Forcemain Progressive Design Build Project

Charlotte Water (CLTWater) treats raw water drawn from the Catawba River Basin and distributes treated drinking water to customers within Mecklenburg County and surrounding regions.   Wastewater generated from consumptive use in eastern Mecklenburg County is discharged into the Rocky River Basin via two wastewater treatment plants (WWTPs). CLTWater intends to offset some wastewater flows that are currently tributary to the Rocky River basin due to transfer constraints and limited treatment capacities.

This Progressive Design-Build (PDB) project will likely involve the construction of at least one pumping station and force main to transfer flows from east Mecklenburg county to a wastewater treatment plant within the Catawba River Basin. Gravity sewer improvements may be necessary on the receiving sewer.  The PDB firm will be required to analyze options for pumping to minimize or eliminate receiving sewer improvements. The Firm will need to consider options for storage at the pumping station or elsewhere in the system to achieve this goal.

The total anticipated CIP budget for this project is approximately $45M, assuming forcemain and gravity sewer improvements will be sized without EQ storage. The budget will vary depending on storage needs. A phased approach for the mentioned improvements, considering future connections to transfer additional flows, will be necessary to align with CIP funding schedules. CLTWater intends to have the initial project phase completed and activated to offset partial flows within two years of the notice to proceed for the planning and design work.

The PDB Team will need to have all the necessary resources to complete the planning, design, permitting, easement acquisition, and construction of this project.

FY22 Small Diameter Water/Sewer Service Contract

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, and includes a water meter box or sanitary sewer cleanout. 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 400 total services.

Queens Road West Water Pipe Replacement Project

Charlotte Water (CLTWater) is planning to replace water services on Queens Road West between East Boulevard and Selwyn Avenue and water pipes under Queens Road West from Wellesley Avenue to Selwyn Avenue and East Boulevard near Queens Road West. The Queens Water Main Replacement Project completed design and construction has not been scheduled yet.

FY22 Manhole Rehabilitation

Charlotte Water maintains over 100,000 sanitary sewer manholes. This contract will be utilized for the repair and renewal of sanitary sewer manholes. Rehabilitation efforts from this contract are expected to reduce inflow within Charlotte Water’s collection system.

Vest Water Treatment Plant Concrete Repairs

The Project consists of concrete repairs and coating applications in the south filter gallery gullets and south sedimentation basin flumes. Improvements to the flocculation basin effluent flumes, including installation of a concrete bulkhead and stop plates. Additional work includes hatch installations, miscellaneous concrete repairs throughout the facility, and miscellaneous small diameter pipe replacement.

Zone 1 HVAC Rehabilitation – CANCELLED

This project will be adding freeze protection to the  two warehouse spaces that are approximately 30,000 square feet.   The space currently has no permanent means of heat.   The completed project will include several space heaters, piping and electrical controls.  This will also include a storage pad and outdoor bulk propane tank which will fuel the heaters.

Lee S. Dukes Water Treatment Plant (WTP) Miscellaneous Chemical Feed Improvement Project

The project consists of installation of 6,000 LF of new 3-inch x 6-inch diameter double wall containment pipe for new chlorine dioxide chemical feed system, including all appurtenances, leak detection system, electrical, testing, and final commissioning.  Installation of two (2) new 2-inch diameter HDPE raw water sample lines (approximate length is 6,000 LF for each), including all appurtenances, and testing. Installation of a new raw water sample pump, casing, piping, appurtenances, electrical, and testing at the Raw Water Intake at Blythe Landing.  Removal and replacement of various chemical feed lines (11/2-inch and 4-inch diameter) inside existing 8-inch and 12-inch diameter casing pipes. Installation of new fiber optic cable (approximately 6,000 LF) between the Lee S. Dukes WTP and the Raw Water Intake. Installation of new potable water line from Highway 73 to existing Compressor Building, including all appurtenances, and testing.

McAlpine Biosolids Improvements

Rehabilitation of Biosolids Facilities and Processes which includes the dewatering facility, digester complexes and digesters.  Includes cleanout of eight digesters.  Major mechanical and process work and electrical upgrades will also be completed.