Brunswick County

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

Provisional

Water System Name: Brunswick County   PWSID: 04-10-045
Mailing Address:PO Box 249
Bolivia, NC 28422		Ownership:County
 
Contact Person:Glenn WalkerTitle:Water Resources Manager
Phone:910-253-1776Cell/Mobile:--
 
Secondary Contact:John Nichols Phone:910-253-2657
Mailing Address:PO Box 249
Bolivia, NC 28422		Cell/Mobile:--
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Asbestos Cement 2-16 3.96 %
Ductile Iron 2-48 7.62 %
Other 1-19 1.34 %
Polyvinyl Chloride 1-42 87.08 %
What are the estimated total miles of distribution system lines?   1,323 Miles
How many feet of distribution lines were replaced during 2024?   0 Feet
How many feet of new water mains were added during 2024?   451,627 Feet
How many meters were replaced in 2024?   1,800
How old are the oldest meters in this system?   15 Year(s)
How many meters for outdoor water use, such as irrigation, are not billed for sewer services?   16,315
What is this system's finished water storage capacity?   21.3500 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?   Yes
Does this system have a leak detection program?   Yes

We monitor non-revenue water, we monitor flow at various points in the WS. Our billing software detects leaks on the customer meters and our SCADA system monitors pressure and flow at multiple points in the system. Fire departments flow and maintain each hydrant annually.

Water Conservation
What type of rate structure is used?   Increasing Block
How much reclaimed water does this system use?   2.2890 MGD   For how many connections?   4
Does this system have an interconnection with another system capable of providing water in an emergency?   Yes

Little River Water Company, can provide up to 1.5 MGD

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Shallotte River (09-4)54 %
Cape Fear River (02-3)30 %
Waccamaw River (09-3)16 %
County(s)% of Service Population
Brunswick100 %
What was the year-round population served in 2024?   125,404
What was the seasonal population and months served in 2024? (if applicable)   27,000 ( May Jun Jul Aug )
Has this system acquired another system since last report?   Yes

The utility acquired Southport WSID #04-10-010 on July 1 2024, and Shallotte WSID#04-10-025 on January 1, 2024

Water Use by Type
Type of Use Metered
Connections		 Metered
Average Use (MGD)		 Non-Metered
Connections		 Non-Metered
Estimated Use (MGD)
Residential 63,794 9.5800 0 2.6400
Commercial 0 0.0000 0 0.0000
Industrial 52 1.6156 0 0.0000
Institutional 0 0.0000 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   0.7525 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
Bald Head Utilities 04-10-130 0.6270 366 0.5000 2050 Yes Yes 10 Regular
Holden Beach 04-10-060 0.4810 366 1.8000 2061 Yes Yes 12-12 Regular
Little River Water Company 00-00-000 0.0000 0 2040 Yes Yes 12 Emergency
Oak Island 04-10-020 1.2856 366 2061 Yes Yes 6,12 Regular
Ocean Isle Beach 04-10-035 0.6748 366 2040 Yes Yes 8-12 Regular
Southport 04-10-010 0.5219 181 2024 No Yes 24-24 Regular

Southport was absorbed into the utility July 1, 2024.

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 11.0300 May 16.3100 Sep 15.6800
Feb 10.4400 Jun 20.6000 Oct 16.2000
Mar 12.3600 Jul 19.3500 Nov 13.0100
Apr 14.5400 Aug 16.9000 Dec 10.1800

Ground Water Sources
Name or Number Average Daily Withdrawal (MGD) Max Day Withdrawal (MGD) 12-Hour Supply
(MGD)		 CUA Reduction Year Offline Use Type
MGD Days Used
1 0.1880 111 0.224 0.1810 Regular
11 0.9755 195 1.113 0.9680 Regular
12 0.5560 196 0.591 0.4000 Regular
12A 0.5410 205 0.578 0.5490 Regular
15 0.2420 193 0.360 0.2980 Regular
16 0.7420 291 0.742 0.7390 Regular
17 0.1680 191 0.216 0.1610 Regular
18 0.2020 194 0.294 0.2350 Regular
19 0.2530 170 0.375 0.2400 Regular
2 0.0760 158 0.12 0.0577 Regular
3 0.1650 188 0.226 0.1580 Regular
5 0.2320 199 0.232 0.2310 Regular
6A 0.2770 158 0.509 0.2240 Regular
8 0.7140 329 0.809 0.6170 Regular
Ground Water Sources (continued)
Name or Number Well Depth (Feet) Casing Depth
(Feet)		 Screen Depth (Feet) Well Diameter (Inches) Pump Intake Depth (Feet) Metered?
Top Bottom
1 175 174 90 170 10 84 Yes
11 164 164 0 0 10 84 Yes
12 96 96 0 0 8 50 Yes
12A 114 114 60 110 10 63 Yes
15 129 129 75 125 10 74 Yes
16 155 155 63 153 10 52 Yes
17 155 155 0 0 8 70 Yes
18 155 155 0 0 10 0 Yes
19 150 150 64 144 10 0 Yes
2 163 163 60 160 10 65 Yes
3 159 159 70 155 10 72 Yes
5 156 156 68 148 10 73 Yes
6A 180 180 100 160 12 90 Yes
8 153 153 65 150 10 70 Yes
Are ground water levels monitored?   Yes, Quarterly
Does this system have a wellhead protection program?   Yes
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
Little River Water Company 00-00-000 0.0000 0 1.5000 Yes Yes 12 Emergency
Lower Cape Fear Water and Sewer Authority 50-09-013 14.7200 366 50.0000 Yes Yes 48-54 Regular
Water Treatment Plants
Plant Name Permitted Capacity
(MGD)		 Is Raw Water Metered? Is Finished Water Ouput Metered? Source
211 WTP 6.0000 Yes Yes Castle Hayne Aquifer
Northwest WTP 24.0000 Yes Yes LCFWASA, (Cape Fear 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

Northwest WTP is under construction to expand conventional capacity to 48 MGD.

4. Wastewater Information

Monthly Discharges
Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)
Jan 7.6559 May 8.3708 Sep 11.0584
Feb 7.4155 Jun 9.0443 Oct 9.4939
Mar 8.4558 Jul 9.9831 Nov 8.2131
Apr 8.4192 Aug 11.8388 Dec 7.5942

How many sewer connections does this system have?   33,508
How many water service connections with septic systems does this system have?   23,585
Are there plans to build or expand wastewater treatment facilities in the next 10 years?   Yes

Mulberry Branch is under construction 0.75 MGD
OIB is slated for expansion +2.0 MGD
WBR is slated for expansion +6.0 MGD
NEWWTP is slated for expansion +3.75 MGD

Wastewater Permits
Permit Number Type Permitted Capacity
(MGD)		 Design Capacity
(MGD)		 Average Annual
Daily Discharge
(MGD)		 Maximum Day Discharge
(MGD)		 Receiving Stream Receiving Basin
NC0044873 WWTP 0.5300 0.5300 0.4330 0.5286 Caw Caw canal Waccamaw River (09-3)
NC0086819 WWTP 4.9750 4.9750 2.8065 8.2875 Cape Fear River Cape Fear River (02-3)
WQ0000798 WWTP 0.5000 0.5000 0.2894 0.9877 NONE Shallotte River (09-4)
WQ0012748 WWTP 0.3000 0.3000 0.1671 0.2490 NONE Shallotte River (09-4)
WQ0023693 WWTP 6.0000 6.0000 4.8661 12.6876 NONE Shallotte River (09-4)
WQ006085 WWTP 1.0500 1.0500 0.4082 0.8040 NONE Shallotte River (09-4)

5. Planning

Projections
  2024 2030 2040 2050 2060 2070
Year-Round Population 125,404 153,633 285,175 337,425 399,116 469,975
Seasonal Population 27,000 27,000 27,000 27,000 27,000 27,000
 
Residential 12.2200 16.7500 31.1000 36.8100 43.5400 51.2700
Commercial 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Industrial 1.6156 1.8000 2.0000 2.0000 2.0000 2.0000
Institutional 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
System Process 0.7525 9.0000 9.0000 9.0000 9.0000 9.0000
Unaccounted-for 0.0178 1.6061 2.7544 3.2205 3.7798 4.4253
Future Supply Sources
Source Name PWSID Source Type Additional Supply Year Online Year Offline Type
Brunswick County Water System 04-10-045 Ground 2.0000 2032 Regular
Brunswick County Water System 04-10-045 Ground 6.0000 2040 Regular
Brunswick County Water System 04-10-045 Surface 4.0000 2040 Regular
Brunswick County Water System 04-10-045 Surface 8.0000 2050 Regular
LCFWASA 50-09-013 Purchase -5.0000 2027 Regular

PCU will purchase 5 MGD of raw water from BCPU in 2027.
The County is pursuing potable resuse and support for modeling of the CFR basin for the opportunity to address and expand the safe yield in the lower Cape Fear Basin at Lock and Dam # 1.

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 5.0587 5.0587 5.0587 5.0587 5.0587 5.0587
Purchases 50.0000 50.0000 50.0000 50.0000 50.0000 50.0000
Future Supplies -5.0000 7.0000 15.0000 15.0000 15.0000
Total Available Supply (MGD) 55.0587 50.0587 62.0587 70.0587 70.0587 70.0587
Service Area Demand 14.6059 29.1561 44.8544 51.0305 58.3198 66.6953
Sales 3.3265 4.3874 4.3874 4.3874 4.3874 4.3874
Future Sales 0.0000 0.0000 0.0000 0.0000 0.0000
Total Demand (MGD) 17.9324 33.5435 49.2418 55.4179 62.7072 71.0827
Demand as Percent of Supply 33% 67% 79% 79% 90% 101%

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 97 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.    NA

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

What supplies other than the ones listed in future supplies are being considered to meet your future supply needs?   Groundwater and surface water sources are being considered in the Southwest portion of the County

How does the water system intend to implement the demand management and supply planning components above?   The County would contract with a firm specializing in water supply development, funding assistance, and permitting.

The demand-to-supply ratio in the Lower Cape Fear Water and Sewer Authority (LCFWSA)- King’s Bluff Local Water Supply Plan (LWSP) is currently above 80% because the available raw water supply is fully allocated to the existing customers and partners (i.e., Brunswick County, Cape Fear Public Utility Authority, and Pender County). Based on a 7Q10 calculation, the total available supply for the system is 106 MGD at Lock & Dam No.1. Even so, the currently projected demands of all partners -- when totaled -- remain below 80% of the available raw water supply for the foreseeable future (i.e., 2050). Furthermore, all the partners have agreed not to exceed the demands currently projected in their LWSP, without notice to NCDWR, even though these amounts may remain less than what LCFWSA – King’s Bluff is obligated to sell them. However, should projected water demands of the partners increase to such amounts where the demand-to-supply ratio in the LCFWSA King’s Bluff LWSP exceeds 80%, a long-term water supply plan to address future demands would be needed, per statutory requirements, before NCDWR could approve the LWSP.

Additional Information

Has this system participated in regional water supply or water use planning?  Yes, We work with Lower Cape Fear Water and Sewer Authority to develop a raw water allocation for Brunswick County.

What major water supply reports or studies were used for planning?  An engineering firm was used to develop recommendations.

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 Northwest WTP is currently undergoing an expansion and modification to treat for PFAS removal and meet the growing needs of our community.

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.