Hillsborough

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: Hillsborough   PWSID: 03-68-015
Mailing Address:PO Box 429
Hillsborough, NC 27278
Ownership:Municipality
 
Contact Person:K. Marie Strandwitz, PETitle:Utilities Director
Phone:919-296-9631Cell/Mobile:--
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Asbestos Cement 6-12 2.86 %
Cast Iron 2-12 7.16 %
Ductile Iron 2-16 34.68 %
Galvanized Iron 1.5-3 0.76 %
Other 1.5-2 0.52 %
Polyvinyl Chloride 2-12 54.02 %
What are the estimated total miles of distribution system lines?   153 Miles
How many feet of distribution lines were replaced during 2024?   231 Feet
How many feet of new water mains were added during 2024?   0 Feet
How many meters were replaced in 2024?   264
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?   47
What is this system's finished water storage capacity?   2.4500 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, Annually
Does this system have a valve exercise program?   Yes, Annually
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?   No
Does this system have a leak detection program?   Yes

The town has budgeted $20K per year for the next few years to have outside vendors perform leak detection. The town spent $40K in its last fiscal year to assess its entire system. Town crews addressed every leak noted. Town crews also have leak detection equipment for spot checking suspected leaks. Water system rates naturally lend itself to conservation strategies. As such, it is not something the town is focused upon advocating.

Water Conservation
What type of rate structure is used?   Flat/Fixed, Uniform
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
Neuse River (10-1)100 %
County(s)% of Service Population
Orange100 %
What was the year-round population served in 2024?   19,062
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 6,250 0.7509 1 0.0092
Commercial 366 0.1381 0 0.0000
Industrial 8 0.0009 0 0.0000
Institutional 140 0.2796 1 0.0150

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   0.0783 MGD

Commercial connections include all irrigation accounts. Residential non-metered connections includes 1 for estimated service and main line leaks. Metered connections include compound meter registers which are measured and summarized from both the high and low registers. Institutional includes fire department water use for training and firefighting counted as one unmetered connection in addition to water main breaks. Also, in 2024 some tanks were cleaned and refilled. System process includes hydrant and interconnection flushing, backwashing filters, basin cleaning, sewer jetting, and hydrant flow testing.

In 2024, several fiber companies were working around the water system and there were more than normal strikes to water services and mains, plus the tank cleaning, which is why our unaccounted-for water is higher than normal.

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
Durham 03-32-010 0.0000 0 Yes 12 Emergency
Orange-Alamance 03-68-020 0.0000 0 Yes Yes 6 Emergency
OWASA 03-68-010 0.0000 0 Yes Yes 16 Emergency

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 1.8180 2.0950 May 2.0140 2.3360 Sep 2.0180 2.4250
Feb 1.8400 2.1900 Jun 2.1516 2.4510 Oct 2.1120 2.4500
Mar 1.8920 2.0600 Jul 2.0290 2.4820 Nov 1.9610 2.2890
Apr 1.9280 2.0340 Aug 2.0280 2.3110 Dec 1.9200 2.0830

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
Eno River Lake Ben Johnston 1.9800 366 0.0000 1.2130 SY20 24.0000
West Fork of the Eno River West Fork of the Eno Reservoir 0.0000 366 0.0000 3.0000 SY20 1,829.0000

* 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
Eno River Lake Ben Johnston 65 Yes Neuse River (10-1) Orange Regular
West Fork of the Eno River West Fork of the Eno Reservoir 9 No Neuse River (10-1) Orange Regular
What is this system's off-stream raw water supply storage capacity?   3 Million gallons
Are surface water sources monitored?   Yes, Weekly
Are you required to maintain minimum flows downstream of its intake or dam?   Yes
Does this system anticipate transferring surface water between river basins?   No

Per voluntary capacity management agreement 3 cfs is required to be measured at the Hillsborough USGS Eno River gauge. While West Fork of Eno River is listed, it is our run of river supply reservoir and not an intake location. As such, the withdraw is reported as zero. DEQ DWR staff have indicated preference for this to remain as a surface source. Note our intake location at Lake Ben Johnson encompasses West Fork of the Eno River, Lake Orange (owned by Orange County), and Seven Mile Creek plus the Eno River itself.

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
Durham 03-32-010 0.0000 0 Yes Yes 12 Emergency
Orange-Alamance 03-68-020 0.0000 0 Yes Yes 6 Emergency
OWASA 03-68-010 0.0000 0 Yes Yes 16 Emergency

No purchases were made between entities for this year.

Water Treatment Plants
Plant Name Permitted Capacity
(MGD)
Is Raw Water Metered? Is Finished Water Ouput Metered? Source
Hillsborough WTP 3.0000 Yes Yes Eno River
Did average daily water production exceed 80% of approved plant capacity for five consecutive days during 2024?  No
     If yes, was any water conservation implemented?  
Did average daily water production exceed 90% of approved plant capacity for five consecutive days during 2024?  No
     If yes, was any water conservation implemented?  
Are peak day demands expected to exceed the water treatment plant capacity in the next 10 years?  No

4. Wastewater Information

Monthly Discharges
Average Daily
Discharge (MGD)
Average Daily
Discharge (MGD)
Average Daily
Discharge (MGD)
Jan 1.6430 May 1.3690 Sep 1.4120
Feb 1.1830 Jun 0.8860 Oct 0.9550
Mar 1.4170 Jul 0.9720 Nov 0.9070
Apr 1.0900 Aug 1.2780 Dec 0.9710

How many sewer connections does this system have?   4,909
How many water service connections with septic systems does this system have?   1,784
Are there plans to build or expand wastewater treatment facilities in the next 10 years?   No

The town is completing a wastewater treatment master plan as it is currently nutrient discharge limited due to Falls Lake Rules. The town is an active participant in the Upper Neuse River Basin Association and is vying for a rules revision as to upgrade our treatment plant for more nutrient removal with little beneficial improvement to Falls Lake is an extreme monetary investment our customers and our financial benchmark obligations cannot support.

Wastewater Permits
Permit Number Type Permitted Capacity
(MGD)
Design Capacity
(MGD)
Average Annual
Daily Discharge
(MGD)
Maximum Day Discharge
(MGD)
Receiving Stream Receiving Basin
NC0026433 WWTP 3.0000 3.0000 1.2000 Eno River Neuse River (10-1)

5. Planning

Projections
  2024 2030 2040 2050 2060 2070
Year-Round Population 19,062 21,349 25,619 30,743 36,892 36,892
Seasonal Population 0 0 0 0 0 0
 
Residential 0.7601 0.8069 0.8913 0.9845 1.0875 1.0875
Commercial 0.1381 0.1423 0.1496 0.1572 0.1653 0.1653
Industrial 0.0009 0.1089 0.1089 0.1089 0.1089 0.1089
Institutional 0.2946 0.3034 0.3186 0.3345 0.3512 0.3512
System Process 0.0783 0.0788 0.0796 0.0804 0.0812 0.0820
Unaccounted-for 0.7080 0.7948 0.8521 0.9144 0.9820 0.9825

The town has a finite water and sewer system boundary established by intergovernmental agreement with surrounding jurisdictions. The wastewater plant is limited in nutrient discharge. The roads through town are limited by lack of space to widen and NCDOT's schedule. Only so much capacity can be accommodated in all infrastructure. Thus it is anticipated that the town will reach its desired capacity by 2060, if not before.

The focus is now on upgrading linear assets. Increasing plant capacity to accommodate growth is not foreseen in the next 15-20 years unless the town board determines it is desired. Based on an analysis of new customer addresses and consumption, consumption is negative than five years earlier likely due to conservation because of high rates. The average residential growth over the last five years was almost 2% per year, however residential service consumption has gone down by a little over 1% per year since 2019.1% growth is assumed for residential.

The non-residential portion reflects even worse on consumption, ranging from being between 10% - 35% less consumption than in 2019 for commercial, institutional and manufacturing accounts. As such, future projections are minimized. An industrial park will be constructed by 2030 that is allocated 108,000 gpd. This has been accounted for by 2030 but no further new industrial activity is anticipated. There may be mixed use developments coming to town so commercial growth consumption, being mostly office and retail, is projected at 0.5% per year as is institutional.

System process water is projected to increase by 0.1% each year although we anticipate a slight decrease next year after the fiber companies are completing boring work around our service area and main and service strikes requiring flushing after repairs are reduced.

Demand v/s Percent of Supply
  2024 2030 2040 2050 2060 2070
Surface Water Supply 4.2130 4.2130 4.2130 4.2130 4.2130 4.2130
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) 4.2130 4.2130 4.2130 4.2130 4.2130 4.2130
Service Area Demand 1.9800 2.2351 2.4001 2.5799 2.7761 2.7774
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) 1.9800 2.2351 2.4001 2.5799 2.7761 2.7774
Demand as Percent of Supply 47% 53% 57% 61% 66% 66%

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 40 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?   

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?  Yes, Yes, We are members of the Triangle Water Partnership which is completing an updated regional interconnection model.

What major water supply reports or studies were used for planning?  We used actual consumption records trended over the past five years and are working on a water system master plan document.

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:   We received a study grant to look at upgrading our oldest and smallest water tank - Hasell St. and have it in our CIP to expand within the next 5 - 6 years. We expect water system improvements will be recommended with the water system master plan report that include upsizing mains, looping, and adding valves for system redundancy.

As mentioned, we have an increase in unaccounted for water in 2024 due to the many main and service strikes by fiber company boring contractors plus many instances of water theft from hydrants. We expect this to decrease next year when the projects are completed.

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.