Raleigh

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: Raleigh   PWSID: 03-92-010
Mailing Address:P.O. Box 590
Raleigh, NC 27602		Ownership:Municipality
 
Contact Person:Edward BuchanTitle:Assistant Director
Phone:919-996-3471Cell/Mobile:919-760-0688
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Asbestos Cement 6-8 2.38 %
Cast Iron 4-12 12.27 %
Ductile Iron 3-54 62.73 %
Galvanized Iron 1-4 0.72 %
Other 1-12 11.23 %
Polyvinyl Chloride 2-12 10.67 %
What are the estimated total miles of distribution system lines?   2,526 Miles
How many feet of distribution lines were replaced during 2024?   23,936 Feet
How many feet of new water mains were added during 2024?   25,142 Feet
How many meters were replaced in 2024?   9,351
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?   9,457
What is this system's finished water storage capacity?   57.6500 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?   Yes
Does this system have an active water conservation public education program?   Yes
Does this system have a leak detection program?   Yes

Data loggers and acoustic sensors are used to verify leaks. Pilot testing AMI pressure sensors to also help identify leaks and unusual pressure changes.

Water Conservation
What type of rate structure is used?   Flat/Fixed, Increasing Block
How much reclaimed water does this system use?   2.4900 MGD   For how many connections?   37
Does this system have an interconnection with another system capable of providing water in an emergency?   Yes

Reclaimed water value only includes reclaimed water distribution system customers and not water used at the Neuse River Resource Recovery Facility for irrigation.

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Neuse River (10-1)99 %
Contentnea Creek (10-2)1 %
County(s)% of Service Population
Wake100 %
What was the year-round population served in 2024?   650,000
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 200,520 35.7000 0 0.0000
Commercial 13,615 11.7000 0 0.0000
Industrial 1,242 2.6000 0 0.0000
Institutional 111 6.3000 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   1.3000 MGD

Residential values include multi-family accounts. ~0.9 MGD of process water is recycled at WTPs.

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
Cary 03-92-020 0.0000 0 0.0000 2032 Yes No 24 Emergency
City of Durham 03-32-010 0.0000 0 2026 Yes Yes 24 Emergency
Franklin County 02-35-030 0.2700 366 0.4000 2030 Yes No Regular
Fuquay-Varina 03-92-055 1.1900 366 1.7500 2035 No Yes 16 Regular
Holly Springs 03-92-050 0.0000 0 1.2000 2029 No No 16 Emergency
Johnston County 03-51-070 0.8500 366 2.5000 2031 No No 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 54.3677 64.3000 May 60.6845 72.9600 Sep 61.6123 69.4600
Feb 53.3553 58.4000 Jun 70.7123 80.4000 Oct 64.3270 76.6500
Mar 54.6372 67.1300 Jul 66.5211 76.9000 Nov 58.3640 67.0900
Apr 59.4716 70.8800 Aug 65.1655 80.4600 Dec 55.1615 59.4100

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
Neuse River Falls Lake 48.6815 366 68.4400 88.2000 SY50 18,800.0000
Swift Creek Lake Benson 11.4829 366 13.4400 11.2000 SY50 2,085.0000

* 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
Neuse River Falls Lake 772 Yes Neuse River (10-1) Wake Regular
Swift Creek Lake Benson 36 Yes Neuse River (10-1) Wake Regular
What is this system's off-stream raw water supply storage capacity?   150 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
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 2032 Yes No 24 Emergency
Durham 03-32-010 0.0000 0 0.0000 2026 Yes No 24 Emergency
Johnston County 03-51-070 0.0000 0 2.5000 2031 No Yes 16 Emergency
Water Treatment Plants
Plant Name Permitted Capacity
(MGD)		 Is Raw Water Metered? Is Finished Water Ouput Metered? Source
Dempsey E. Benton WTP 16.0000 Yes Yes Lake Benson
E.M. Johnson WTP 86.0000 Yes Yes Falls Lake
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?  No
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?  No
Are peak day demands expected to exceed the water treatment plant capacity in the next 10 years?  No

Expanding the EM Johnson plant to 120 MGD

4. Wastewater Information

Monthly Discharges
Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)
Jan 56.3800 May 49.0500 Sep 64.1900
Feb 52.0200 Jun 46.8300 Oct 54.6100
Mar 53.4000 Jul 51.7100 Nov 51.5500
Apr 51.1700 Aug 58.6200 Dec 50.5400

How many sewer connections does this system have?   202,794
How many water service connections with septic systems does this system have?   1,049
Are there plans to build or expand wastewater treatment facilities in the next 10 years?   No
Wastewater Permits
Permit Number Type Permitted Capacity
(MGD)		 Design Capacity
(MGD)		 Average Annual
Daily Discharge
(MGD)		 Maximum Day Discharge
(MGD)		 Receiving Stream Receiving Basin
NC0029033 WWTP 75.0000 75.0000 49.7000 Neuse River Neuse River (10-1)
NC0030759 WWTP 6.0000 4.0000 2.5400 Smith Creek Neuse River (10-1)
NC0079316 WWTP 2.2000 1.8500 1.0600 Little Creek Contentnea Creek (10-2)
Wastewater Interconnections
Water System PWSID Type Average Daily Amount Contract
Maximum (MGD)
MGD Days Used
Apex 03-92-045 Receiving 0.0000 0 1.0000
Clayton 03-51-020 Receiving 0.0000 0 1.0000
Johnston County 03-51-070 Receiving 0.0000 0 1.0000
Middlesex 04-64-050 Receiving 0.1320 366 0.1900

5. Planning

Projections
  2024 2030 2040 2050 2060 2070
Year-Round Population 650,000 776,900 903,000 1,134,200 1,344,000 1,513,630
Seasonal Population 0 0 0 0 0 0
 
Residential 35.7000 36.4800 38.6400 44.5500 50.5100 56.4500
Commercial 11.7000 16.8900 19.9600 23.0100 26.0900 29.1700
Industrial 2.6000 1.9600 2.3200 2.6700 3.0300 3.3900
Institutional 6.3000 2.9500 3.9400 4.0200 4.5600 5.1000
System Process 1.3000 3.0200 3.3000 3.7000 4.0400 4.4000
Unaccounted-for 0.2544 6.4200 7.5900 8.7500 9.5200 10.0000

Projected residential water demand for 2030 includes 3.80 MGD wholesale water sales which will expire before 2040.

Future Supply Sources
Source Name PWSID Source Type Additional Supply Year Online Year Offline Type
Little River Reservoir 03-92-010 Surface 14.0000 2050 Regular
Neuse River Intake 03-92-010 Surface 20.0000 2040 Regular
Obermeyer gates for Lake Wheeler and Lake Benson 03-92-010 Surface 2.5000 2026 Regular

Development timeframes for new water resources is highly speculative and not necessarily reflective of when a resource will come online. The EM Johnson treatment plant will be expanded to 120 MGD by ~2030.

Demand v/s Percent of Supply
  2024 2030 2040 2050 2060 2070
Surface Water Supply 99.4000 99.4000 99.4000 99.4000 99.4000 99.4000
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 2.5000 22.5000 36.5000 36.5000 36.5000
Total Available Supply (MGD) 99.4000 101.9000 121.9000 135.9000 135.9000 135.9000
Service Area Demand 57.8544 67.7200 75.7500 86.7000 97.7500 108.5100
Sales 2.3100 4.6500 0.4000 0.4000 0.4000 0.4000
Future Sales 0.0000 0.0000 0.0000 0.0000 0.0000
Total Demand (MGD) 60.1644 72.3700 76.1500 87.1000 98.1500 108.9100
Demand as Percent of Supply 61% 71% 62% 64% 72% 80%

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?   Tiered water rates, billing irrigation at highest tier and showerhead exchange program.

What supplies other than the ones listed in future supplies are being considered to meet your future supply needs?    Interbasin transfers, offline quarry storage and additional conservation pool transfers in Falls Lake.

How does the water system intend to implement the demand management and supply planning components above?    Raleigh Water has evaluated the listed alternate resource options through the Integrated Master Plan and will continue to review these options in the future. With projected utility rate increases needed to maintain bond ratings and appropriate CIP funding, it is expected this pricing will continue to limit overall water demands.

Additional Information

Has this system participated in regional water supply or water use planning?  Yes, Yes, Raleigh Water is part of the Triangle Area Water Supply Partnership and has participated in this group's long range water supply planning process.

What major water supply reports or studies were used for planning?   Integrated Master Plan which was completed in November of 2023.

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.