Wilson

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: Wilson   PWSID: 04-98-010
Mailing Address:P.O. Box 10
Wilson, NC 27894		Ownership:Municipality
 
Contact Person:David StaabTitle:Asst. Director of Water Resources
Phone:252-399-2376Cell/Mobile:252-205-2518
 
Secondary Contact:Ryan Brown Phone:252-399-2374
Mailing Address:P.O. Box 10
Wilson, NC 27894		Cell/Mobile:252-205-2518
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Asbestos Cement 4-12 26.00 %
Cast Iron 2-24 11.00 %
Ductile Iron 2-30 17.00 %
Galvanized Iron 2-6 0.20 %
Other 2-24 1.80 %
Polyvinyl Chloride 2-12 44.00 %
What are the estimated total miles of distribution system lines?   412 Miles
How many feet of distribution lines were replaced during 2025?   820 Feet
How many feet of new water mains were added during 2025?   8,250 Feet
How many meters were replaced in 2025?   2,000
How old are the oldest meters in this system?   14 Year(s)
How many meters for outdoor water use, such as irrigation, are not billed for sewer services?   1,092
What is this system's finished water storage capacity?   9.0000 Million Gallons
Has water pressure been inadequate in any part of the system since last update? Line breaks that were repaired quickly should not be included.   Yes
Programs
Does this system have a program to work or flush hydrants?   Yes, Annually
Does this system have a valve exercise program?   Yes, 2 Years or More
Does this system have a cross-connection program?   Yes
Does this system have a program to replace meters?   Yes
Does this system have a plumbing retrofit program?   No
Does this system have an active water conservation public education program?   Yes
Does this system have a leak detection program?   Yes
Water Conservation
What type of rate structure is used?   Decreasing Block
How much reclaimed water does this system use?   0.3155 MGD   For how many connections?   7
Does this system have an interconnection with another system capable of providing water in an emergency?   No

Wilson has two water treatment facilities and two water sources which provide redundancy. However, a simple explanation or "no" checked box does not explain our system adequately. None of our neighbors are large enough to supply all our total needs for water, but we do have several interconnections where we can feed our neighbors which are numbered for clarification. None are large enough, but all could be reversed to supply some water to our system in an emergency.
1) US 301 North Upchurch Road PS 12 inch line to (Wilson County SE District to US 301 other side 6 inch). This could also feed Rocky Mount thru Sharpsburg with a booster PS for emergencies. (this was installed in previous drought in 2008) and could be reversed as this area is at the same elevation as Wilson.
2) We are connected to the Town of Elm City thru the same 12 inch line and PS. This could be reversed as they are at a higher elevation if backflow by-passed.
3) We are interconnected to the Nash County system along NC 58 North at the Wilson / Nash County line. (valve currently closed) This would require a booster station which was installed during previous drought to feed Nash County and Rocky Mount. Again, this could be reversed as Nash County is at a higher elevation.
4) We have two interconnection with the SW District of Wilson County, one along Wiggins Mill Road near Springfield Middle School which feeds their Willing Worker Road PS and a 12 inch along NC 42 West at I95. Both can and do also supply the Northeast District of Johnston County with their PS at the Wilson / Johnston County line. This line could also be reversed as they are at a higher elevation as well. There are currently no agreements with any of our neighbors to reverse flow, only to supply them on a regular basis, or in an emergency, or as agreed upon by MOA.

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Contentnea Creek (10-2)99 %
Tar River (15-1)1 %
County(s)% of Service Population
Wilson100 %
What was the year-round population served in 2025?   49,303
Has this system acquired another system since last report?   No
Water Use by Type
Type of Use Metered
Connections		 Metered
Average Use (MGD)		 Non-Metered
Connections		 Non-Metered
Estimated Use (MGD)
Residential 21,544 2.7100 0 0.0000
Commercial 2,110 1.3800 0 0.0000
Industrial 49 1.0400 2 0.4000
Institutional 123 0.0400 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   1.7450 MGD

The two non-metered connections are the two water treatment plants.

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
Elm City 04-98-020 0.1200 365 0.1000 2051 No Yes 12 Regular
Johnston County 03-51-070 0.5100 365 1.5000 2033 No Yes 12 Regular
Wilson County SE WD 40-98-014 0.1690 3 0.0790 2045 No Yes 6 Regular
Wilson County SW WD 40-98-012 0.0000 0 0.1710 2045 No Yes 12 Regular

We have a water contract for sales to Wilson County SE and SW Districts. Technically we are a regular supplier of water based on our contract, but because we almost never sale any water except in an extreme emergency or during a large main break we almost consider it an emergency. The use is indicated as Regular to match Wilson County since we have the capability and the contractual obligation to sale when demanded.

Wilson confirms the present sales contract with Elm City has a sales limit of 0.1000 MGD that expires in 2051.

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 8.3400 10.0990 May 8.6030 9.5530 Sep 8.7220 9.7990
Feb 8.0700 9.3920 Jun 8.9820 10.4170 Oct 8.6020 9.7630
Mar 8.3410 9.0920 Jul 9.2230 10.3610 Nov 8.1520 9.3160
Apr 8.6040 9.7260 Aug 8.8110 10.5770 Dec 7.8490 9.0720

Annual average was 8.525 MGD

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
Contentnea Creek Wiggins Mill Reservoir 8.5250 365 10.5770 1.0000 SY50 240.0000
Contentnea Creek Buckhorn Lake 0.0000 0 0.0000 26.7000 SY50 6,726.0000
Tar River Tar River Reservoir 0.0000 0 0.0000 3.0000 SY50 3,500.0000
Toisnot Swamp Toisnot Reservoir 0.0000 0 0.0000 0.2000 SY50 20.0000
Toisnot Swamp Lake Wilson 0.0000 0 0.0000 1.0000 SY50 150.0000

* 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
Contentnea Creek Wiggins Mill Reservoir 236 Yes Contentnea Creek (10-2) Wilson Regular
Contentnea Creek Buckhorn Lake 160 No Contentnea Creek (10-2) Wilson Regular
Tar River Tar River Reservoir 775 No Tar River (15-1) Nash Emergency
Toisnot Swamp Toisnot Reservoir 60 Yes Contentnea Creek (10-2) Wilson Regular
Toisnot Swamp Lake Wilson 40 No Contentnea Creek (10-2) Wilson Regular
What is this system's off-stream raw water supply storage capacity?   0 Million gallons
Are surface water sources monitored?   Yes, Daily
Are you required to maintain minimum flows downstream of its intake or dam?   Yes
Does this system anticipate transferring surface water between river basins?   Yes

Transfers 1) Potable water to Johnston County North District. Contentnea Creek 10-2 in Neuse Basin to Little River in Neuse Basin 10-1 ). A portion of the district is within the Contentnea watershed and is not transferred.
2) Potable water to the Town of Elm City is a transfer from Contentnea Creek in Neuse Basin 10-2 to Town Creek in Tar Basin 15-1). Elm City land applies their wastewater.
3) A small portion of Wilson County SE district lies within Town Creek in the Tar River Basin 15-1 transferred from 10-2 Contentnea Creek

Releases: Agreement with ACE in Buckhorn Dam Permit to release 7.6,5.3, or 1.4 CFS into Contentnea Creek based on the Buckhorn Lake level. Buckhorn releases water downstream to Wiggins Mill Reservoir. Lake Wilson releases downstream to Toisnot Reservoir on the other side of town. The safe yield for Buckhorn is adjusted for evaporation, 50 year sedimentation (beginning in 1999), for required releases downstream, and for 10% active storage remaining. Otherwise the safe yield is 31.6 MGD

Water Treatment Plants
Plant Name Permitted Capacity
(MGD)		 Is Raw Water Metered? Is Finished Water Ouput Metered? Source
Toisnot WTP 10.0000 Yes Yes Toisnot Reservoir or Wiggins Mill Reservoir
Wiggins Mill WTP 12.0000 Yes Yes Wiggins Mill Reservoir (downstream of Buckhorn)
Did average daily water production exceed 80% of approved plant capacity for five consecutive days during 2025?  No
     If yes, was any water conservation implemented?  No
Did average daily water production exceed 90% of approved plant capacity for five consecutive days during 2025?  No
     If yes, was any water conservation implemented?  No
Are peak day demands expected to exceed the water treatment plant capacity in the next 10 years?  No

Engineering plans 100% complete to expand Wiggins Mill from 12 to 16 MGD. Due to budgetary constraints, plans are being revised to only upgrade electrical components at this time and not increase capacity.

4. Wastewater Information

Monthly Discharges
Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)
Jan 7.2700 May 7.6500 Sep 5.7500
Feb 10.2900 Jun 8.6800 Oct 5.9700
Mar 10.0400 Jul 6.9300 Nov 6.3400
Apr 8.7000 Aug 7.6700 Dec 6.7100

How many sewer connections does this system have?   21,641
How many water service connections with septic systems does this system have?   932
Are there plans to build or expand wastewater treatment facilities in the next 10 years?   Yes

Average of 7.65 MGD for 2025. PER currently being performed by Hazen and Sawyer to expand the Hominy Creek WRF from 14 MGD to 17.3 or 20.7 MGD. Modeling Study to be performed with design 2024-2026 and construction date has not been decided. Estimated number of septic system connections by subtracting the difference between total residential water meters and total residential sewer customers.

Wastewater Permits
Permit Number Type Permitted Capacity
(MGD)		 Design Capacity
(MGD)		 Average Annual
Daily Discharge
(MGD)		 Maximum Day Discharge
(MGD)		 Receiving Stream Receiving Basin
NC0023906 WWTP 14.0000 14.0000 7.6500 22.3700 Contentnea Creek Contentnea Creek (10-2)
Wastewater Interconnections
Water System PWSID Type Average Daily Amount Contract
Maximum (MGD)
MGD Days Used
Black Creek 04-98-035 Receiving 0.2070 365 0.5350
Lucama 04-98-030 Receiving 0.0000 365
Sims 04-98-045 Receiving 0.0296 365 0.0750
Town of Saratoga 04-98-040 Receiving 0.0336 365 0.1000

We do not have a direct connection with Lucama. They discharge to Black Creek who discharges to the City. Accordingly, the sum of the Lucama and Black Creek discharges is equal to what we report receiving from Black Creek.

5. Planning

Projections
  2025 2030 2040 2050 2060 2070
Year-Round Population 49,303 49,303 55,000 69,000 83,000 112,000
Seasonal Population 0 0 0 0 0 0
 
Residential 2.7100 3.0000 3.7800 4.5500 5.3200 6.0900
Commercial 1.3800 1.9100 2.6100 3.3900 4.1800 4.9600
Industrial 1.4400 1.4400 1.9700 2.5600 3.1500 3.7400
Institutional 0.0400 0.0600 0.0800 0.1000 0.1200 0.1400
System Process 1.7450 1.7450 1.7450 1.7450 1.7450 1.7450
Unaccounted-for 0.5786 0.6450 0.8056 0.9765 1.1481 1.3190

Projections extrapolated from the 2024 Water Master Plan developed by Freese and Nichols.

Future Water Sales
Purchaser PWSID Contract Pipe Size(s) (Inches) Use Type
MGD Year Begin Year End
Johnston County 03-51-070 0.4900 2027 2051 12 Regular

In negotiation with Johnston County to increase supply to 1.99 MGD in 2027.

Demand v/s Percent of Supply
  2025 2030 2040 2050 2060 2070
Surface Water Supply 28.9000 28.9000 28.9000 28.9000 28.9000 28.9000
Ground Water Supply 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Purchases 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Future Supplies 0.0000 0.0000 0.0000 0.0000 0.0000
Total Available Supply (MGD) 28.9000 28.9000 28.9000 28.9000 28.9000 28.9000
Service Area Demand 7.8936 8.8000 10.9906 13.3215 15.6631 17.9940
Sales 0.6314 1.9600 0.4600 0.1200 0.0000 0.0000
Future Sales 0.4900 0.4900 0.4900 0.0000 0.0000
Total Demand (MGD) 8.5250 11.2500 11.9406 13.9315 15.6631 17.9940
Demand as Percent of Supply 29% 39% 41% 48% 54% 62%

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 55 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.    No Changes

Are there other demand management practices you will implement to reduce your future supply needs?   

What supplies other than the ones listed in future supplies are being considered to meet your future supply needs?   

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?  No

What major water supply reports or studies were used for planning?  

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 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.