Robbinsville

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: Robbinsville   PWSID: 01-38-010
Mailing Address:P.O. Box 126
Robbinsville, NC 28771		Ownership:Municipality
 
Contact Person:Lamar WilliamsTitle:ORC
Phone:828-479-2886Cell/Mobile:828-735-0809
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Asbestos Cement 6 2.00 %
Cast Iron 6-12 15.00 %
Polyvinyl Chloride 2-12 83.00 %
What are the estimated total miles of distribution system lines?   40 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?   20
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?   0
What is this system's finished water storage capacity?   1.0000 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, Monthly
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?   Yes
Does this system have an active water conservation public education program?   No
Does this system have a leak detection program?   Yes
Water Conservation
What type of rate structure is used?   Increasing Block, Other
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

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Little Tennessee River (07-1)100 %
County(s)% of Service Population
Graham100 %
What was the year-round population served in 2024?   2,907
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 877 0.1190 0 0.0000
Commercial 177 0.0800 0 0.0000
Industrial 0 0.0000 0 0.0000
Institutional 28 0.0400 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   0.0250 MGD

System process water is estimated at 0.0250 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 0.2167 0.3233 May 0.2048 0.3111 Sep 0.2457 0.3120
Feb 0.1904 0.2280 Jun 0.2175 0.2800 Oct 0.2281 0.3000
Mar 0.2016 0.2233 Jul 0.2201 0.2740 Nov 0.2324 0.3270
Apr 0.2015 0.2500 Aug 0.2336 0.2930 Dec 0.2420 0.3490

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
WO2 0.0604 366 0.0810 Regular
WO3 0.0628 366 0.0810 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
WO2 265 66 8 189 Yes
WO3 Yes
Are ground water levels monitored?   No,
Does this system have a wellhead protection program?   Yes
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
Burgan Creek 0.0540 180 0.0000 0.0700 F 0.0000
Long Creek 0.1300 100 0.0000 0.5000 F 0.0000
Rock Creek Rock Creek 0.1500 365 0.0000 0.5000 F 1.0000

* 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
Burgan Creek 1 No Little Tennessee River (07-1) Graham Regular
Long Creek 1 No Little Tennessee River (07-1) Graham Regular
Rock Creek Rock Creek 1 Yes Little Tennessee River (07-1) Graham Regular
What is this system's off-stream raw water supply storage capacity?   0 Million gallons
Are surface water sources monitored?   Yes, Daily
Are you required to maintain minimum flows downstream of its intake or dam?   No
Does this system anticipate transferring surface water between river basins?   No
Water Treatment Plants
Plant Name Permitted Capacity
(MGD)		 Is Raw Water Metered? Is Finished Water Ouput Metered? Source
PO3 Wells 0.0120 No Yes ground water
Robbinsville Rock Creek WTP 0.5000 Yes Yes Long, Burgan & Rock Creek
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 0.4046 May 0.2860 Sep 0.3148
Feb 0.3681 Jun 0.1424 Oct 0.2099
Mar 0.4136 Jul 0.1135 Nov 0.1737
Apr 0.2625 Aug 0.1295 Dec 0.2271

How many sewer connections does this system have?   1,062
How many water service connections with septic systems does this system have?   530
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
NC0025879 WWTP 0.6300 0.6300 0.2869 1.3600 Long Creek Little Tennessee River (07-1)
NC0083071 WTP 0.0000 0.0200 0.0080 0.0179 Rock Creek Little Tennessee River (07-1)

5. Planning

Projections
  2024 2030 2040 2050 2060 2070
Year-Round Population 2,907 3,278 3,343 3,410 3,478 3,545
Seasonal Population 0 0 0 0 0 0
 
Residential 0.1190 0.1115 0.1137 0.1159 0.1183 0.1205
Commercial 0.0800 0.0503 0.0504 0.0514 0.0525 0.0539
Industrial 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Institutional 0.0400 0.0184 0.0187 0.0191 0.0195 0.0199
System Process 0.0250 0.0300 0.0300 0.0300 0.0300 0.0300
Unaccounted-for 0.0709 0.0868 0.0850 0.0865 0.0880 0.0896
Demand v/s Percent of Supply
  2024 2030 2040 2050 2060 2070
Surface Water Supply 1.0700 1.0700 1.0700 1.0700 1.0700 1.0700
Ground Water Supply 0.1620 0.1620 0.1620 0.1620 0.1620 0.1620
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) 1.2320 1.2320 1.2320 1.2320 1.2320 1.2320
Service Area Demand 0.3349 0.2970 0.2978 0.3029 0.3083 0.3139
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) 0.3349 0.2970 0.2978 0.3029 0.3083 0.3139
Demand as Percent of Supply 27% 24% 24% 25% 25% 25%

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 41 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?  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.