The Division of Water Resources (DWR) provides the data contained within this
Local Water Supply Plan (LWSP) as a courtesy and service to our customers.
DWR staff does not field verify data. Neither DWR, nor any other party
involved in the preparation of this LWSP attests that the data is completely
free of errors and omissions. Furthermore, data users are cautioned that
LWSPs labeled PROVISIONAL have yet to be reviewed by DWR staff. Subsequent
review may result in significant revision. Questions regarding the accuracy
or limitations of usage of this data should be directed to the water system
and/or DWR.
1. System Information
Contact Information
Complete
Water System Name: |
Charlotte Water |
|
PWSID: |
01-60-010 |
Mailing Address: | 5100 Brookshire Blvd. Charlotte, NC 28216 | Ownership: | County |
|
Contact Person: | Charles Thach | Title: | Engineering Project Coordinator |
Phone: | 980-346-2713 | Cell/Mobile: | -- |
|
Secondary Contact: | Bhavana Swayampakala | | Phone: | 980-240-8801 |
Mailing Address: | 5100 Brookshire Blvd. Charlotte, NC 28216 | Cell/Mobile: | -- |
Distribution System
Line Type |
Size Range (Inches) |
Estimated % of lines |
Asbestos Cement |
3-10 |
0.97 % |
Cast Iron |
1-42 |
21.49 % |
Ductile Iron |
1-66 |
21.60 % |
Galvanized Iron |
3/4-6 |
2.20 % |
Other |
1-96 |
1.52 % |
Polyvinyl Chloride |
1-24 |
52.22 % |
Meters for outdoor water use include active and inactive accounts for lawn irrigation, smart-metering irrigation, and swimming pools. Programs
-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. Water Conservation
'The Mallard Creek Wastewater Treatment Plant reclamation line is currently active and was in use for the months of November and December.
2. Water Use Information
Service Area
Sub-Basin(s) | % of Service Population |
Catawba River (03-1) | 82 % |
Rocky River (18-4) | 18 % |
|
County(s) | % of Service Population |
Mecklenburg | 100 % |
|
Water Use by Type
Type of Use |
Metered Connections |
Metered Average Use (MGD) |
Non-Metered Connections |
Non-Metered Estimated Use (MGD) |
Residential |
306,822 |
67.9891 |
0 |
0.0000 |
Commercial |
25,592 |
21.9230 |
0 |
0.0000 |
Industrial |
308 |
2.9210 |
0 |
0.0000 |
Institutional |
2,477 |
5.9313 |
0 |
0.0000 |
How much water was used for system processes (backwash, line cleaning, flushing, etc.)? 10.8386 MGD
"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 2024. 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." Water Sales
Purchaser |
PWSID |
Average Daily Sold (MGD) |
Days Used |
Contract |
Required to comply with water use restrictions? |
Pipe Size(s) (Inches) |
Use Type |
MGD |
Expiration |
Recurring |
Concord |
01-13-010 |
0.2082 |
3 |
5.0000 |
|
Yes |
Yes |
12/16 |
Regular |
Lancaster Co. |
00-00-000 |
0.1913 |
366 |
3.0000 |
2097 |
Yes |
Yes |
16 |
Regular |
Town of Harrisburg |
01-13-025 |
0.1220 |
366 |
|
|
Yes |
Yes |
8/12 |
Regular |
Union Co |
01-90-413 |
0.0000 |
30 |
0.5000 |
|
Yes |
Yes |
12 |
Emergency |
York County, South Carolina |
00-00-000 |
0.1589 |
366 |
5.0000 |
|
|
Yes |
8 |
Regular |
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.
The consumption for Union County was spread through 30 days of usage. The total amount is 515 Gallons so the value is not significant enough to be reflected in MGD in the table shown above.
3. Water Supply Sources
Monthly Withdrawals & Purchases
|
Average Daily Use (MGD) |
Max Day Use (MGD) |
|
Average Daily Use (MGD) |
Max Day Use (MGD) |
|
Average Daily Use (MGD) |
Max Day Use (MGD) |
Jan |
110.4020 |
132.8530 |
May |
124.4048 |
142.8040 |
Sep |
138.1848 |
157.3990 |
Feb |
106.6560 |
139.1200 |
Jun |
145.4232 |
167.3890 |
Oct |
142.5424 |
149.0080 |
Mar |
106.4090 |
129.8900 |
Jul |
143.8839 |
171.2333 |
Nov |
124.3320 |
144.1420 |
Apr |
113.1110 |
128.9520 |
Aug |
137.3549 |
162.7492 |
Dec |
115.2216 |
128.6010 |

Surface Water Sources
Stream |
Reservoir |
Average Daily Withdrawal |
Maximum Day Withdrawal (MGD) |
Available Raw Water Supply |
Usable On-Stream Raw Water Supply Storage (MG) |
MGD |
Days Used |
MGD |
* Qualifier |
Catawba River |
Lake Norman |
18.2180 |
366 |
0.0000 |
108.0000 |
C |
0.0000 |
Catawba River |
Mt. Island Lake |
107.4428 |
366 |
0.0000 |
163.0000 |
T |
0.0000 |
* Qualifier: C=Contract Amount, SY20=20-year Safe Yield, SY50=50-year Safe Yield, F=20% of 7Q10 or other instream flow requirement, CUA=Capacity Use Area Permit
Surface Water Sources (continued)
Stream |
Reservoir |
Drainage Area (sq mi) |
Metered? |
Sub-Basin |
County |
Year Offline |
Use Type |
Catawba River |
Lake Norman |
1,790 |
Yes |
Catawba River (03-1) |
Mecklenburg |
|
Regular |
Catawba River |
Mt. Island Lake |
1,860 |
Yes |
Catawba River (03-1) |
Mecklenburg |
|
Regular |
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.
Water Purchases From Other Systems
Seller |
PWSID |
Average Daily Purchased (MGD) |
Days Used |
Contract |
Required to comply with water use restrictions? |
Pipe Size(s) (Inches) |
Use Type |
MGD |
Expiration |
Recurring |
City of Concord |
01-13-010 |
0.0000 |
0 |
1.0000 |
|
Yes |
Yes |
12 |
Regular |
Water Treatment Plants
Plant Name |
Permitted Capacity (MGD) |
Is Raw Water Metered? |
Is Finished Water Ouput Metered? |
Source |
Franklin WTP |
181.0000 |
Yes |
Yes |
Catawba (Mt. Island Lake) |
Lee S. Dukes WTP |
25.2500 |
Yes |
Yes |
Catawba (Lake Norman) |
Vest WTP |
24.0000 |
Yes |
Yes |
Catawba (Mt. Island Lake) |
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.
4. Wastewater Information
Monthly Discharges
|
Average Daily Discharge (MGD) |
|
Average Daily Discharge (MGD) |
|
Average Daily Discharge (MGD) |
Jan |
110.2931 |
May |
97.1726 |
Sep |
102.4869 |
Feb |
89.7695 |
Jun |
84.7718 |
Oct |
88.0070 |
Mar |
100.9395 |
Jul |
87.8844 |
Nov |
85.2241 |
Apr |
88.5631 |
Aug |
99.3219 |
Dec |
89.8935 |

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.
Wastewater Permits
Permit Number |
Type |
Permitted Capacity (MGD) |
Design Capacity (MGD) |
Average Annual Daily Discharge (MGD) |
Maximum Day Discharge (MGD) |
Receiving Stream |
Receiving Basin |
NC0024937 |
WWTP |
20.0000 |
20.0000 |
16.1000 |
29.4000 |
Little Sugar Creek |
Catawba River (03-1) |
NC0024945 |
WWTP |
15.0000 |
15.0000 |
13.4000 |
28.0000 |
Irwin Creek |
Catawba River (03-1) |
NC0024970 |
WWTP |
64.0000 |
64.0000 |
42.6000 |
102.3000 |
McAlpine Creek |
Catawba River (03-1) |
NC0030210 |
WWTP |
13.1000 |
13.1000 |
10.5000 |
24.4000 |
Mallard Creek |
Rocky River (18-4) |
NC0036277 |
WWTP |
12.0000 |
12.0000 |
6.0000 |
14.4000 |
McDowell Creek |
Catawba River (03-1) |
NC0065749 |
WWTP |
0.1000 |
0.1000 |
0.0531 |
0.1000 |
Duck Creek |
Rocky River (18-4) |
Wastewater Interconnections
Water System |
PWSID |
Type |
Average Daily Amount |
Contract Maximum (MGD) |
MGD |
Days Used |
WSACC |
01-13-020 |
Discharging |
5.0570 |
366 |
7.4000 |
Union County |
01-90-413 |
Receiving |
2.0797 |
366 |
3.0000 |
5. Planning
Projections
|
2024 |
2030 |
2040 |
2050 |
2060 |
2070 |
Year-Round Population |
1,163,701 |
1,305,431 |
1,564,989 |
1,784,088 |
2,033,860 |
2,318,601 |
Seasonal Population |
0 |
0 |
0 |
0 |
0 |
0 |
|
Residential |
67.9891 |
75.3530 |
97.0700 |
113.9970 |
127.5510 |
142.5710 |
Commercial |
21.9230 |
22.2672 |
22.8530 |
23.4542 |
24.0712 |
24.7044 |
Industrial |
2.9210 |
3.4615 |
4.5936 |
6.0959 |
8.0896 |
10.7353 |
Institutional |
5.9313 |
6.2440 |
6.8022 |
7.4104 |
8.0729 |
8.7947 |
System Process |
10.8386 |
11.7780 |
14.4110 |
16.5660 |
18.4130 |
20.5000 |
Unaccounted-for |
15.5839 |
16.9950 |
20.7942 |
23.9040 |
26.5686 |
29.5805 |
-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 (2019 - 2024) assuming we serve 100% of the population within the county. City Planning is assuming 85-90% of the population is served so 61 gcpd is used for these projections.
-Remaining, non-residential demand was assumed to grow at the same rate as population. Demand v/s Percent of Supply
|
2024 |
2030 |
2040 |
2050 |
2060 |
2070 |
Surface Water Supply |
271.0000 |
271.0000 |
271.0000 |
271.0000 |
271.0000 |
271.0000 |
Ground Water Supply |
0.0000 |
0.0000 |
0.0000 |
0.0000 |
0.0000 |
0.0000 |
Purchases |
1.0000 |
1.0000 |
1.0000 |
1.0000 |
1.0000 |
1.0000 |
Future Supplies |
0.0000 |
0.0000 |
0.0000 |
0.0000 |
0.0000 |
Total Available Supply (MGD) |
272.0000 |
272.0000 |
272.0000 |
272.0000 |
272.0000 |
272.0000 |
Service Area Demand |
125.1869 |
136.0987 |
166.5240 |
191.4275 |
212.7663 |
236.8859 |
Sales |
0.4739 |
13.1220 |
13.1220 |
13.1220 |
13.1220 |
13.1220 |
Future Sales |
0.0000 |
0.0000 |
0.0000 |
0.0000 |
0.0000 |
Total Demand (MGD) |
125.6608 |
149.2207 |
179.6460 |
204.5495 |
225.8883 |
250.0079 |
Demand as Percent of Supply |
46% |
55% |
66% |
75% |
83% |
92% |

The purpose of the above chart is to show a general indication of how the long-term per capita water demand changes over time. The per capita water demand may actually be different than indicated due to seasonal populations and the accuracy of data submitted. Water systems that have calculated long-term per capita water demand based on a methodology that produces different results may submit their information in the notes field.
Your long-term water demand is 58 gallons per capita per day. What demand management practices do you plan to implement to reduce the per capita water demand (i.e. conduct regular water audits, implement a plumbing retrofit program, employ practices such as rainwater harvesting or reclaimed water)? If these practices are covered elsewhere in your plan, indicate where the practices are discussed here.
Are there other demand management practices you will implement to reduce your future supply needs? Charlotte Water strives to reduce per capita demand through public education, an increasing block rate structure, non-revenue water audits, meter replacement program and a plumbing retrofit program. Additionally, the utility is actively participating in the Partnership for Safe Water Distribution System optimization Program and the non-Revenue Water and Loss Mitigation Program as prescribed in the AWWA M36 Manual. Future per capita demands will be evaluated annually and addressed through various programs or technologies. Charlotte Water is currently evaluating the reuse availability to large customers within the service area. Irrigation rates start at tier 3 as a price signal for usages and is annually reviewed to determine the appropriateness of these rates.
What supplies other than the ones listed in future supplies are being considered to meet your future supply needs? Charlotte Water contracted with Black and Veatch to conduct the 2023 Water Distribution System Master Plan. It includes a 2040 Comprehensive Plan which serves as a framework for future development based on the demand growth of the Charlotte Water Distribution System and existing infrastructure and treatment capacity.
How does the water system intend to implement the demand management and supply planning components above?
Additional Information
Has this system participated in regional water supply or water use planning? Yes, Yes, Charlotte Water is a founding member of the Catawba-Wateree Water Management Group (CWWMG). CWWMG is the recognized planning organization for the 4,750 square miles that drain into the Catawba and Wateree rivers, providing water to neighbors from Morganton, NC to Camden, SC. This group is currently working with a consultant on a 10-year update to the Water Supply Master Plan (WSMP) now known as the Integrated Water Resources Plan (IWRP).
What major water supply reports or studies were used for planning? The original WSMP completed by the CWWMG in 2015 concluded that the supply for the entire Catawba River Basin was sustainable through 2065. Results of several initiatives covering long-term planning for water supply, demand and drought management, and climate change are being integrated throughout the IWRP process. A Stakeholder Advisory Team has also been established to evaluate interim plan products and recommend enhancements.
Please describe any other needs or issues regarding your water supply sources, any water system deficiencies or needed improvements (storage, treatment, etc.) or your ability to meet present and future water needs. Include both quantity and quality considerations, as well as financial, technical, managerial, permitting, and compliance issues: The CWWMG's IWRP that will be completed in 2025 will identify any strategies needed to extend the water supply availability for the basin beyond current forecasts. Charlotte Water contracted with Black and Veatch to conduct the 2023 Water Distribution System Master Plan. The Master Plan study is still ongoing and will provide recommendations on infrastructure and water supplies to improve the water system and forecasts demands and capacity needs into 2050.
In 2024, Charlotte Water provided a “Notice of Intent” to begin modifying its current Interbasin Transfer (IBT) certification due to the transfer that occurs via service delivery to customers in the Rocky River basin portion of Mecklenburg County. Currently, Charlotte Water is hosting a series of stakeholder advisory group meetings to provide input on actionable alternatives that will be studied through a required Environmental Impact Statement (EIS). Charlotte Water anticipates the EIS development to be submitted to NC Department of Environmental Quality in 2027. Upon review and if determined adequate by the NC Environmental Management Commission, Charlotte Water will submit an official request to modify its current IBT at that point in time. Any request to modify our IBT certificate will be based on a required 30 year demand forecast and the outcome of the required EIS evaluation of alternatives and mitigation strategies.
The Division of Water Resources (DWR) provides the data contained within this
Local Water Supply Plan (LWSP) as a courtesy and service to our customers.
DWR staff does not field verify data. Neither DWR, nor any other party
involved in the preparation of this LWSP attests that the data is completely
free of errors and omissions. Furthermore, data users are cautioned that
LWSPs labeled PROVISIONAL have yet to be reviewed by DWR staff. Subsequent
review may result in significant revision. Questions regarding the accuracy
or limitations of usage of this data should be directed to the water system
and/or DWR.
|