Seven Devils

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: Seven Devils   PWSID: 01-95-118
Mailing Address:157 Seven Devils Road
Seven Devils, NC 28604		Ownership:Municipality
 
Contact Person:Kevin AldridgeTitle:Water System Operator
Phone:828-963-5343Cell/Mobile:--
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Ductile Iron 6 40.00 %
Polyvinyl Chloride 2-6 60.00 %
What are the estimated total miles of distribution system lines?   13 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?   0
How old are the oldest meters in this system?   1 Year(s)
How many meters for outdoor water use, such as irrigation, are not billed for sewer services?   0
What is this system's finished water storage capacity?   0.1700 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

NCRWA is used for leak detection.

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?   No

No other system within a reasonable distance for interconnection.

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Watauga River (16-1)100 %
County(s)% of Service Population
Watauga65 %
Avery35 %
What was the year-round population served in 2024?   400
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 550 0.0290 0 0.0000
Commercial 1 0.0030 0 0.0000
Industrial 0 0.0000 0 0.0000
Institutional 1 0.0003 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   0.0020 MGD

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 0.0457 May 0.0563 Sep 0.0602
Feb 0.0403 Jun 0.0386 Oct 0.0789
Mar 0.0343 Jul 0.0567 Nov 0.1498
Apr 0.0457 Aug 0.0433 Dec 0.0660

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
Supply 1 0.0062 365 0.0790 Regular
Supply 2 0.0240 365 0.0680 Regular
Supply 3 0.0150 365 0.0480 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
Supply 1 334 30 0 0 6 252 Yes
Supply 2 500 76 0 0 6 480 Yes
Supply 3 200 78 0 0 6 189 Yes
Are ground water levels monitored?   Yes, Monthly
Does this system have a wellhead protection program?   No

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?   552
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 400 400 401 401 401 402
Seasonal Population 0 0 0 0 0 0
 
Residential 0.0290 0.0290 0.0290 0.0290 0.0290 0.0270
Commercial 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030
Industrial 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Institutional 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003
System Process 0.0020 0.0020 0.0020 0.0020 0.0020 0.0020
Unaccounted-for 0.0108 0.0108 0.0108 0.0108 0.0108 0.0102

0% population growth since previous sensus

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 0.1950 0.1950 0.1950 0.1950 0.1950 0.1950
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) 0.1950 0.1950 0.1950 0.1950 0.1950 0.1950
Service Area Demand 0.0451 0.0451 0.0451 0.0451 0.0451 0.0425
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) 0.0451 0.0451 0.0451 0.0451 0.0451 0.0425
Demand as Percent of Supply 23% 23% 23% 23% 23% 22%

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 73 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?   

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?  No

What major water supply reports or studies were used for planning?  

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.