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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.

The Mallard Creek Wastewater Treatment Plant reclamation line is currently active.

"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 2025. 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, auto-flushers, 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.

The Lancaster Sale of Water Agreement agrees that the point of sale for treated water will not exceed an amount of 3 MGD based on a 90 day running average of usage. This agreement has no expiration date.

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.

Charlotte confirms sales to Harrisburg for all 365 days of the year, and although Harrisburg reports purchases for only eighteen days, the volumes are equal.

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
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 2024 Water Distribution System Master Plan. The plan forecasts demands and capacity needs into 2050. One outcome from this evaluation is an expansion of our Lee S. Dukes WTP by 50 MGD. This increase will be covered under our current FERC permitting for a 108 MGD intake currently on Lake Norman. Based on demand projections from the current master plan, peak day demands are expected to exceed the water treatment capacity by 2035. The first phase of the Lee S. Dukes WTP expansion (25 MGD) is expected to be completed by 2032 which would address the increase in expected peak demands.

Stowe Regional Water Resource Recovery Facility (Long Creek WWTP in 2018 report) is currently under construction, permitted as a 15 MGD treatment facility and is anticipated to be on-line in 2027.

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 2019-2023 US Census Bureau data for Mecklenburg County, the average household size is 2.45.

-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.

-2060 and 2070 service populations are assumed to be steady 1.4% population growth from CRTPO projections.
For Commercial, Industrial, and Institutional growth, recent studies from the past 10 years worth of data was used to calculate the percentage increase for 2030-2070.

-The per capita residential demand is based on an observed average consumption of 55 gcpd assuming we serve 100% of the population within the county. City Planning is assuming 85-90% of the population is served so 60 gcpd is used for these projections for year 2025.