Chatham County Asbury Water System

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: Chatham County Asbury Water System   PWSID: 40-19-010
Mailing Address:Post Office Box 910
Pittsboro, NC 27312		Ownership:County
 
Contact Person:Blake MillsTitle:Public Utilities Director
Phone:919-542-8238Cell/Mobile:919-548-4847
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Ductile Iron 4-16 13.00 %
Galvanized Iron 2 2.00 %
Polyvinyl Chloride 4-16 85.00 %
What are the estimated total miles of distribution system lines?   71 Miles
How many feet of distribution lines were replaced during 2024?   0 Feet
How many feet of new water mains were added during 2024?   0 Feet
How many meters were replaced in 2024?   33
How old are the oldest meters in this system?   20 Year(s)
How many meters for outdoor water use, such as irrigation, are not billed for sewer services?   1
What is this system's finished water storage capacity?   0.8000 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
Programs
Does this system have a program to work or flush hydrants?   Yes, As Needed
Does this system have a valve exercise program?   Yes, As Needed
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?   No
Water Conservation
What type of rate structure is used?   Increasing Block
How much reclaimed water does this system use?   0.0000 MGD   For how many connections?   0
Does this system have an interconnection with another system capable of providing water in an emergency?   Yes

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Deep River (02-2)100 %
County(s)% of Service Population
Chatham100 %
What was the year-round population served in 2024?   1,565
Has this system acquired another system since last report?   No

The year round population was based on 626 houses at 2.5 persons per house equals 1,565 persons.

Water Use by Type
Type of Use Metered
Connections		 Metered
Average Use (MGD)		 Non-Metered
Connections		 Non-Metered
Estimated Use (MGD)
Residential 626 0.0548 0 0.0000
Commercial 27 0.0034 0 0.0000
Industrial 4 0.0419 0 0.0000
Institutional 0 0.0000 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   0.0287 MGD

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
Chatham County North Water System 03-19-126 0.0000 0 Yes Yes 16 Emergency
Chatham County Southwest Water System 03-19-050 0.2776 365 0.4000 Yes Yes 16 Regular

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 0.5023 May 0.3896 Sep 0.5724
Feb 0.4611 Jun 0.3980 Oct 0.4343
Mar 0.4336 Jul 0.4444 Nov 0.5050
Apr 0.4760 Aug 0.5818 Dec 0.4361

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
Chatham County North Water System 03-19-126 0.0000 0 Yes Yes 16 Emergency
City of Sanford 03-53-010 0.4694 365 1.5000 2040 Yes Yes 12 Regular

4. Wastewater Information

Monthly Discharges
Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)
Jan 0.0000 May 0.0000 Sep 0.0000
Feb 0.0000 Jun 0.0000 Oct 0.0000
Mar 0.0000 Jul 0.0000 Nov 0.0000
Apr 0.0000 Aug 0.0000 Dec 0.0000

How many sewer connections does this system have?   0
How many water service connections with septic systems does this system have?   649
Are there plans to build or expand wastewater treatment facilities in the next 10 years?   No

5. Planning

Projections
  2024 2030 2040 2050 2060 2070
Year-Round Population 1,565 1,661 1,835 2,027 2,239 2,473
Seasonal Population 0 0 0 0 0 0
 
Residential 0.0548 0.0582 0.0643 0.0710 0.0784 0.0866
Commercial 0.0034 0.0036 0.0040 0.0044 0.0049 0.0054
Industrial 0.0419 0.0445 0.0491 0.0543 0.0599 0.0662
Institutional 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
System Process 0.0287 0.0345 0.0337 0.0372 0.0411 0.0454
Unaccounted-for 0.0625 0.1687 0.1697 0.1708 0.1718 0.1733

Growth projections were calculated based on a traditional 1% growth.

Future Water Sales
Purchaser PWSID Contract Pipe Size(s) (Inches) Use Type
MGD Year Begin Year End
Chatham County Southwest Water System 03-19-050 1.7000 2030 16 Regular

The Asbury Water System needs to sell 1.7 MGD to the Southwest Water System to account for the up to 1 MGD that the Southwest Water System sells to Siler City Water System. Asbury needs to purchsse 1.75 MGD from the North Water System to achieve this.

Future Supply Sources
Source Name PWSID Source Type Additional Supply Year Online Year Offline Type
Chatham County North 03-19-126 Purchase 1.7500 2030 Regular
Demand v/s Percent of Supply
  2024 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 1.5000 1.5000 1.5000 1.5000 1.5000 1.5000
Future Supplies 1.7500 1.7500 1.7500 1.7500 1.7500
Total Available Supply (MGD) 1.5000 3.2500 3.2500 3.2500 3.2500 3.2500
Service Area Demand 0.1913 0.3095 0.3208 0.3377 0.3561 0.3769
Sales 0.2768 0.4000 0.4000 0.4000 0.4000 0.4000
Future Sales 1.7000 1.7000 1.7000 1.7000 1.7000
Total Demand (MGD) 0.4681 2.4095 2.4208 2.4377 2.4561 2.4769
Demand as Percent of Supply 31% 74% 74% 75% 76% 76%

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 35 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.    Water leakage studies are conducted on a as needed basis

Are there other demand management practices you will implement to reduce your future supply needs?   Public education in water bills providing tips to save water.

What supplies other than the ones listed in future supplies are being considered to meet your future supply needs?   No other water supplies are needed. Chatham County has a 13 MGD allocation from Jordan Lake (currently using 3 MGD) and can produce treated water to meet future needs through a combination of our own Beaver Creek WTP and the new WIP WTP that comes on-line in 2031. The North Water System can supply the future water needs of the Asbury Water System.

How does the water system intend to implement the demand management and supply planning components above?   Chatham County is constructing a regional water treatment plant and raw water intake on Jordan Lake with the Western Intake Partners (Durham, Pittsboro, OWASA). The new regional WIP WTP is planned to be operational in 2031. Chatham County is participating in a Triangle Regional Water Supply Plan to the year 2070, that is sponsored by Central Pines

Additional Information

Has this system participated in regional water supply or water use planning?  Yes, Chatham County is constructing a regional water treatment plant and raw water intake on Jordan Lake with the Western Intake Partners (Durham, Pittsboro, OWASA). The new regional WIP WTP is planned to be operational in 2031. Chatham County is participating in a Triangle Regional Water Supply Plan to the year 2070, that is sponsored by Central Pines

What major water supply reports or studies were used for planning?  Chatham County Master Plan for the North, Asbury and Southwest Water Systems - determines long-term growth water service areas, water demands and transmission and distribution watermain capacities by Freese Nichols. Triangle Water Partners Triangle Regional Water Supply Plan prepared by HDR and Hazen.

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:   Chatham County is merging the water utility with TriRiver Water on July 1, 2025.

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.