Complete

Meters for outdoor water use include active and inactive accounts for lawn irrigation, smart-metering irrigation, and swimming pools.

-Select hydrants are flushed by either manual operation or by automatic flushing devices located throughout the system as needed to maintain water quality. In addition, all hydrants are inspected/flushed at a minimum of every 2 years by the City of Charlotte and Mecklenburg County Fire Departments.

-Valve exercise program is conducted on a continuous basis. Annual operation is targeted with an emphasis on 12-inch and larger valves.

-Locating and repairing large leaks is a derivative of the objectives set forth in the Revenue Recovery Program. Existing master meters have been calibrated and new meters have been installed to monitor consumption by pressure zone to help identify potential water losses by regional service area. In addition a pilot test is underway that will include the field installation of leak detection devices, a study of information collected, and evaluation of their potential cost effectiveness as an additional tool to support Charlotte Water's water loss control efforts.

A reuse line by the University of North Carolina at Charlotte was completed in 2023 but not active for the 2023 calendar year. The Mallard Creek Wastewater Treatment Plant reclamation line is currently offline with plans to be activated in the summer of 2024.

Davidson Point, which was previously on a private regulated well system, was acquired by Charlotte Water. In February 2023, a pipeline connection was completed to integrate Davidson Point into the Charlotte Water Distribution System. 166 residential service connections were established and is now supplied and operated by Charlotte water.

Metered connections are based on the number of active and inactive connections at the time of query. Average meter use is based on active account usage at the time of query for calendar year 2023. Residential meters include separate outdoor irrigation accounts. Commercial connections include outdoor irrigation accounts.

System water was calculated as summation of estimated water losses associated with hydrant flushing, autoflushers, and water main projects along with the difference between water withdraws from Mt. Island Lake and Lake Norman and the actual treated water pumped by the three water treatment plants (Franklin, Lee Dukes, and Vest). The difference takes into account evaporative losses, treatment of filter process water, and plant maintenance water, among others. Value excludes any water returned under NPDES permits.

The Concord Water Supply Agreement is on a 5-year auto renewal contract. Both parties agree to provide the other a total maximum of 5 million gallons of water per day (MGD). The Harrisburg Water Supply Agreement has no stated volume limit and no term as they are treated as any other Charlotte Water customer. The Union County Water Supply Agreement requires a written termination request.

Charlotte Water may provide water service to private systems and separate regulated utilities such as Aqua NC, Inc, Carolina Water Service, etc. No contracts exists between the City of Charlotte and these utilities. Service is provided to these public water systems in the same manner that service is provided to other Charlotte Water customers.

The consumption for Union County was spread through 41 days of usage. The total amount is 2850 Gallons so the value is not significant enough to be reflected in MGD in the table shown above.

Available Raw Water Supply amounts are based on combination of treatment and pumping capacities along with FERC withdrawal authorizations. The current FERC authorization with Lake Norman granted construction of an 108 MGD water intake facility. This intake is currently serving the Lee S. Dukes WTP with a permitted treatment capacity of 25.25 MGD. The current FERC authorization for withdrawing from Mountain Island Lake stipulates an instantaneous rate of 330 MGD, while maintaining an average annual withdrawal limit of 163 MGD.

Charlotte Water currently has a 33.0 MGD Maximum Day IBT to transfer water from the Catawba River to the Rocky River basin.

Charlotte Water contracted with Black and Veatch to conduct the 2015 Water Distribution System Master Plan. The Plan forecasts demands and capacity needs into 2040. One outcome from this evaluation is an expansion of our Lee S. Dukes WTP by 25 MGD. This increase will be covered under our current FERC permitting for a 108 MGD intake currently on Lake Norman.

Preliminary design and permitting is underway for the Stowe Regional Water Resource Recovery Facility (Long Creek WWTP in 2018 report).

Water service connections with septic systems estimated as number of accounts for domestic-use connections without associated sewer accounts. These counts exclude wholesale, fire line, swimming pool, and irrigation connections.

-Based on the 2012 US Census Bureau data for Mecklenburg County, the average household size is 2.5.

-2020 - 2040 service populations are based on Charlotte Regional Transportation Planning Organization (CRTPO) Traffic Analysis Zone (TAZ) based population increases. All population growth was assumed to be served by Charlotte Water.

-2050 and 2060 service populations are assumed to be steady 1.4% population growth from CRTPO projections.

-The per capita residential demand is based on an observed average consumption of 63.5 gcpd (2016 - 2020). This value has decreased and is projected to decrease to 53 GPD in 2025 (as presented in Charlotte Water's 2015 Water Distribution System Master Plan conducted by Black and Veatch).

-Remaining, non-residential demand was assumed to grow at the same rate as population.