Holly Springs

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: Holly Springs   PWSID: 03-92-050
Mailing Address:P.O. Box 8
Holly Springs, NC 27540		Ownership:Municipality
 
Contact Person:Rachel Ingham, PETitle:Deputy Director, Water Resources
Phone:919-577-3151Cell/Mobile:919-501-0741
 
Secondary Contact:Carrie Kennedy, PE Phone:919-567-4718
Mailing Address:128 S. Main St.
Holly Springs, NC 27540		Cell/Mobile:919-501-0741
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Asbestos Cement 4-8 1.00 %
Ductile Iron 2-30 59.00 %
Other 2-16 26.00 %
Polyvinyl Chloride 2-16 14.00 %
What are the estimated total miles of distribution system lines?   248 Miles
How many feet of distribution lines were replaced during 2025?   0 Feet
How many feet of new water mains were added during 2025?   33,084 Feet
How many meters were replaced in 2025?   1,908
How old are the oldest meters in this system?   10 Year(s)
How many meters for outdoor water use, such as irrigation, are not billed for sewer services?   1,491
What is this system's finished water storage capacity?   2.3000 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.   No

An Asset Inventory Assessment (AIA) of the Town's water system was completed in 2025. Changes in the quantities by type are reflective of the updated data from the AIA.

Programs
Does this system have a program to work or flush hydrants?   Yes, Weekly
Does this system have a valve exercise program?   Yes, Daily
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

The Town owns 30 leak detection devices that are used to monitor the system for leaks.

Water Conservation
What type of rate structure is used?   Flat/Fixed, Increasing Block
How much reclaimed water does this system use?   0.2589 MGD   For how many connections?   1458
Does this system have an interconnection with another system capable of providing water in an emergency?   Yes

The Town has ILAs and interconnections with the Town of Cary and the Town of Apex for emergencies. The Town has an interconnection with Harnett County that currently serves as the primary water supply to our system.

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Neuse River (10-1)67 %
Cape Fear River (02-3)33 %
County(s)% of Service Population
Wake100 %
What was the year-round population served in 2025?   53,648
Has this system acquired another system since last report?   No

A recently completed Comprehensive Plan update re-assessed the Town area by sub-basin. Those updates are reflected above.

Water Use by Type
Type of Use Metered
Connections		 Metered
Average Use (MGD)		 Non-Metered
Connections		 Non-Metered
Estimated Use (MGD)
Residential 17,238 2.4300 0 0.0000
Commercial 735 0.3360 0 0.0000
Industrial 15 0.5720 0 0.0000
Institutional 97 0.0600 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   0.0010 MGD

Since the system relies only on purchase water for supply, no process water is used. Reuse water is used at the WWTP for process water. The Town tracks all water for town use, such as town irrigation water, facilities, parks, and flushing water. Flushing water was estimated at 0.001 MGD based on prior year's submittals.

The Town's Finance Department has been re-evaluating all account use types, resulting in a decrease in Commercial use in 2025.

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 3.2362 4.1578 May 3.8552 4.4351 Sep 4.2653 4.7279
Feb 3.2504 3.9801 Jun 4.0650 4.8102 Oct 3.9063 4.1778
Mar 3.4989 3.9628 Jul 4.2726 4.7196 Nov 3.5531 3.6342
Apr 3.6960 4.5763 Aug 4.3520 4.3484 Dec 3.3651 3.6261

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
Cary 03-92-020 0.0000 0 0.0000 2045 Yes Yes 16 Emergency
Harnett County 03-43-045 3.7763 365 6.7000 2048 Yes Yes 36 Regular

The Town’s contract with Harnett County is for a maximum day use of 10 MG. However, the LWSP form does not property represent this as a max day value, but shows it as an average day value of 10 MGD within its calculations, thus overstating the available supply. During the Jordan Lake Allocation process, we worked with the State to develop a representative average day value for this contract. We chose to use a max month value of approximately 6.7 MGD, which is represented throughout the LWSP.

4. Wastewater Information

Monthly Discharges
Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)
Jan 2.9580 May 3.0620 Sep 2.8480
Feb 3.2510 Jun 2.9610 Oct 2.9480
Mar 3.2380 Jul 3.0060 Nov 3.0660
Apr 2.9990 Aug 3.1370 Dec 3.1850

How many sewer connections does this system have?   16,537
How many water service connections with septic systems does this system have?   32
Are there plans to build or expand wastewater treatment facilities in the next 10 years?   Yes

The Town is currently at 6MGD and permitted up to 8MGD. Design for the Utley Creek Water Reclamation Facility (UCWRF) expanstion started in 2024 and were finalized and permitted in 2025. Construciton of the upgraded facilities will begin in the first quarter of 2026 and is anticipated to be completed by the end of 2029.

Wastewater Permits
Permit Number Type Permitted Capacity
(MGD)		 Design Capacity
(MGD)		 Average Annual
Daily Discharge
(MGD)		 Maximum Day Discharge
(MGD)		 Receiving Stream Receiving Basin
NC0063096 WWTP 8.0000 6.0000 3.0540 4.4110 Utley Creek Cape Fear River (02-3)

5. Planning

Projections
  2025 2030 2040 2050 2060 2070
Year-Round Population 53,648 65,775 82,327 98,890 115,446 132,013
Seasonal Population 0 0 0 0 0 0
 
Residential 2.4300 3.2366 4.0431 4.8566 5.6641 6.5089
Commercial 0.3360 0.4309 0.5330 0.6594 0.8117 0.9992
Industrial 0.5720 1.5083 1.9308 2.4715 2.7301 3.0157
Institutional 0.0600 0.0736 0.0921 0.1106 0.1291 0.1476
System Process 0.0010 0.0011 0.0013 0.0016 0.0020 0.0024
Unaccounted-for 0.3773 0.5828 0.7327 0.8991 1.0364 1.1848

The water use projections for Industrial users increased from last year's LWSP due to a higher level of detail being provided by the users related to anticipated water demand and new master planned economic development projects.

Future Supply Sources
Source Name PWSID Source Type Additional Supply Year Online Year Offline Type
Future Jordan Lake 03-92-050 Surface 2.2000 2050 Regular
Sanford TriRiver Water 03-53-010 Purchase 4.0000 2028 Regular

Sanford, Fuquay-Varina, and Holly Springs have partnered in the construction of an 18 mgd expansion of the Sanford Water Plant and will continue to expand the facility as the need arises. This facility is managed by TriRiver Water.

Demand v/s Percent of Supply
  2025 2030 2040 2050 2060 2070
Surface Water Supply 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Ground Water Supply 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Purchases 6.7000 6.7000 6.7000 6.7000 6.7000 6.7000
Future Supplies 4.0000 4.0000 6.2000 6.2000 6.2000
Total Available Supply (MGD) 6.7000 10.7000 10.7000 12.9000 12.9000 12.9000
Service Area Demand 3.7763 5.8333 7.3330 8.9988 10.3734 11.8586
Sales 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Future Sales 0.0000 0.0000 0.0000 0.0000 0.0000
Total Demand (MGD) 3.7763 5.8333 7.3330 8.9988 10.3734 11.8586
Demand as Percent of Supply 56% 55% 69% 70% 80% 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 45 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?   The Town currently enforces a Water Conservation and Water Shortage Response ordinance. The Town also has installed a water reuse system to offset potable water demands. Lastly, the Town has an active leak detection program.

What supplies other than the ones listed in future supplies are being considered to meet your future supply needs?   The Town participates in regional water supply planning efforts, including the Jordan Lake Partnership, Wake County Water Partnership, and Triangle Water Partnership. Also, the Town maintains relationships with regional water suppliers such as Harnett County and the City of Sanford/TriRiver Water. The Town is looking into potential water supply sources presented in the Regional Water and Wastewater Infrastructure Concept Plan (US 421 Corridor).

How does the water system intend to implement the demand management and supply planning components above?   For demand management, the Town continues to promote the use of its reclaimed water system, growing connections to the system. For water supply planning, the Town performs routine planning for water supply to identify the timeframe of future needs and required funding for such needs.

Additional Information

Has this system participated in regional water supply or water use planning?  Yes, The Town continues to participate in regional water supply planning, primarily through the Jordan Lake Partnership and the Triangle Water Supply Partnership.

What major water supply reports or studies were used for planning?  Major water supply efforts and studies used in planning include the Jordan Lake Water Supply Allocation studies, the Triangle Water Supply Partnership Regional Water Supply Plan and Interconnection Model, and the Regional Water and Wastewater Infrastructure Concept Plan (NCDEQ).

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:    There are no additional needs at this time, beyond those listed in this form.

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.