Beech Mountain

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: Beech Mountain   PWSID: 01-95-104
Mailing Address:403 Beech Mountain Parkway
Beech Mountain, NC 28604
Ownership:Municipality
 
Contact Person:Daniel DavisTitle:Director of Utilities
Phone:828-387-9282Cell/Mobile:--
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Ductile Iron 4-8 15.00 %
Galvanized Iron 2-12 84.00 %
Polyvinyl Chloride 6 1.00 %
What are the estimated total miles of distribution system lines?   66 Miles
How many feet of distribution lines were replaced during 2024?   1,200 Feet
How many feet of new water mains were added during 2024?   0 Feet
How many meters were replaced in 2024?   135
How old are the oldest meters in this system?   18 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?   1.5000 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

In 2021, we completed the 2020/2021 FY project totaling 17,000 feet of water main and associated service connections. We have further scheduled the next project including an estimated 22,700 feet of water main and associated service connections for the 2022/2023 FY. This project is part of the continuing water main upgrades plans to replace large areas of galvanized piping installed in the late 1960's by the original developer before the township was incorporated and is on schedule form completion in 2025. We continue a 10 year initiative to begin replacing as a target number 150 service connections annually, removing3/4"galvanized piping and replacing with a polyethylene(PexA) product as further effort to reduce loss throughout the system. In 2022, we replaced 40 services at an estimated 1200 feet of service connections as well. We also have a planned program to replace an additional 400 3/4" galvanized service connections as a special service line replacement project over the next 2 years which is progressing.

Programs
Does this system have a program to work or flush hydrants?   Yes, Monthly
Does this system have a valve exercise program?   No
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

We use digital meters which allow for weekly readings of the service meters to monitor meter usage, totals, and leakage as well as leak listening devices and correlators to identify main line leakage in suspect areas. We also have a monthly, quarterly, and annual hydrant flushing program that is utilized to maintain pleasing water to our citizens. We work each year with the NC Rural Water Association on a system wide leak detection effort.

Water Conservation
What type of rate structure is used?   Increasing Block, 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?   No

Not physcially feasable.

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Watauga River (16-1)100 %
County(s)% of Service Population
Watauga85 %
Avery15 %
What was the year-round population served in 2024?   712
What was the seasonal population and months served in 2024? (if applicable)   5,844 ( Jan Feb Mar Jun Jul Aug Dec )
Has this system acquired another system since last report?   No

Nearly all the population at Beech Mountain is transient. Population data sources: current year-round population from Office of State Management and Budget(OSMB), current seasonal population from Town of Beech Mountain 2020-35 Comprehensive Plan chapter 4, page 13 (and applying 2.45% annual seasonal growth rate as indicated in the Plan).

Water Use by Type
Type of Use Metered
Connections
Metered
Average Use (MGD)
Non-Metered
Connections
Non-Metered
Estimated Use (MGD)
Residential 2,187 0.1260 0 0.0000
Commercial 64 0.0280 0 0.0000
Industrial 0 0.0000 0 0.0000
Institutional 0 0.0000 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   0.0300 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 0.7710 1.0610 May 0.3820 0.7630 Sep 0.5080 0.6960
Feb 0.6910 1.0310 Jun 0.4060 0.5120 Oct 0.4570 0.7730
Mar 0.4510 0.6180 Jul 0.4680 0.5920 Nov 0.4360 0.6400
Apr 0.3380 0.2550 Aug 0.5250 1.0140 Dec 0.5330 0.7230

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
Pinnacle Ridge Well 0.0320 275 0.071 0.1040 CUA0 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
Pinnacle Ridge Well 680 100 100 100 6 540 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
Buckeye Creek Buckeye Lake 0.4970 365 1.0610 0.2400 SY50 30.0000
Pond Creek Lake Coffey 0.0000 0 0.0000 0.0300 F 7.0000

* 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
Buckeye Creek Buckeye Lake 3 Yes Watauga River (16-1) Watauga Regular
Pond Creek Lake Coffey 1 No Watauga River (16-1) Watauga Emergency
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?   Yes
Does this system anticipate transferring surface water between river basins?   Yes

Buckeye Lake was constructed in 1985/1986 and was at operational water levels by 1987. The 20- year safe yield for Buckeye Lake was reported in the 1989DWR Water Supply System Report to be 2.0 mgd. The basis for this estimate is unknown. Since construction, the actual available safe yield of Buckeye Lake has been found to be significantly less than the originally reported 2.0 mgd estimation. According to the February 2014 Buckeye Lake Yield Analysis document by West Consultants, the safe yield of Buckeye Lake is approximately 0.3 mgd; however, this value is only valid under specific qualifying conditions. The most important condition is that this value does not include the existing minimum release requirements set forth in the United States Army Corps of Engineers
(USACE)Permit (i.e., Section 404- Clean Water Act) for construction of the Buckeye Lake dam. The
permit, issued November 1984, requires a minimum flow release from the dam of 2.8 cfs (1.8 mgd) through October, November and December, intended to provide needed flows during the native brook trout spawning period. The remainder of the year (i.e., January through September), the required minimum release is 1.5 cfs (0.97 mgd), intended to maintain the existing water quality of Buckeye Creek. The 2014 Yield Analysis report makes it clear that when including the required minimum releases, as dictated by the USACE permit, the safe yield should be considered zero under low flow conditions or in times of drought. It should also be noted that similar to the Buckeye Creek flow estimations, the safe yield calculations used USGS gage data from the Watauga and Elk Rivers. In light of recent DWR modelling difficulties regarding Buckeye Creek, use of these values should be considered questionable, even though this methodology is the only available means to make such estimations. The 1984 minimum release requirements used in the 2014 Buckeye Lake Yield Analysis document by West Consultants were not achievable during droughts such as the town
experienced in 2010. Therefore, the town requested a modification to the dam permit issued by US Army Corps of Engineers.
On November 20th, 2019 The Town of Beech Mountain received approval of Individual 401 Water Quality Certification (Certification #1756)(USACE Action ID. No.SAW-2018-02144) which replaces the certification based on October 8th, 1984. Based on this certification protocol, West Consultants has calculated the current estimated yield of Buckeye Lake to be 0.240 MGD. The minimums approved are still significant (up to 1.64 MGD) but are more achievable, however, yields shown are theoretical based on assumption that the Buckeye Lake watershed characteristics mimic the Watauga River watershed. Actual yields may be lower than shown.
In 2019 Beech Mountain moved forward to aid this calculation process by partnering with the U.S. Department of the Interior; U.S. Geological Survey to install and maintain stream gage stations upstream and downstream of the Buckeye Lake Reservoir. This data will be used to provide accurate stream flow calculations into the future aiding the ability to accurately meet USACE permit requirements. This data will be used to build a historical database for more accurate stream flow calculations.
In 2021, Beech Mountain began engineering design on expansion of the Lake Coffey water supply source. Recent discussions with NCDEQ, NC Wildlife, and US Army Corps. of Engineers on feasibility of the project have been favorable and expectations are now that the project will be acceptable as a solution for the town from all groups involved. Beech Mountain is proceeding with the constructing of the Lake Coffey expansion to mitigate threats to our system from natural disaster, especially drought situations, but also for common occurrence of earthquakes, electrical storms, and flood surge events which consistently damage our system. This project will directly improve our resiliency in the public water system by not only providing additional source water for treatment, but also to provide redundancy to our sources mitigating the single source situation we are currently in. Lake Coffey is also fed by a separate source stream, Pond Creek, than our existing Buckeye Lake source on Buckeye Creek. This allows for resilience in case of any contamination of either stream.

Water Treatment Plants
Plant Name Permitted Capacity
(MGD)
Is Raw Water Metered? Is Finished Water Ouput Metered? Source
Buckeye Treatment Plant 1.0000 Yes Yes Buckeye 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?  Yes

4. Wastewater Information

Monthly Discharges
Average Daily
Discharge (MGD)
Average Daily
Discharge (MGD)
Average Daily
Discharge (MGD)
Jan 0.0150 May 0.0040 Sep 0.0060
Feb 0.0120 Jun 0.0040 Oct 0.0040
Mar 0.0100 Jul 0.0060 Nov 0.0040
Apr 0.0090 Aug 0.0050 Dec 0.0080

How many sewer connections does this system have?   1,950
How many water service connections with septic systems does this system have?   314
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
NC0022730 WWTP 0.0800 0.0800 0.0440 0.3000 Grassy Gap Creek Watauga River (16-1)
NC0069761 WWTP 0.4000 0.4000 0.1800 1.1000 Pond Creek Watauga River (16-1)
NC0088099 WTP 0.0500 0.0500 0.0220 0.2000 Buckeye Creek Watauga River (16-1)

5. Planning

Projections
  2024 2030 2040 2050 2060 2070
Year-Round Population 712 823 1,049 1,336 1,702 2,168
Seasonal Population 5,844 6,757 8,608 10,965 12,500 12,556
 
Residential 0.1260 0.1457 0.1856 0.2364 0.2695 0.2707
Commercial 0.0280 0.0324 0.0412 0.0525 0.0599 0.0602
Industrial 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Institutional 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
System Process 0.0300 0.0300 0.0300 0.0300 0.0300 0.0300
Unaccounted-for 0.3357 0.4030 0.4980 0.5260 0.5260 0.5260

Population data sources: current year-round population from Office of State Management and Budget (OSMB), current seasonal population from Town of Beech Mountain 2020-35 Comprehensive Plan chapter 4, future populations based on the Comprehensive Plan and projecting the same rate of growth into the future(2.45% per year). But the build-out population of the town is estimated to be about (2,312 current units + 3,100 future units) @2.32 persons per unit = 2,556.Growth in residential and commercial water demand is assumed to be proportional with the growth in population. System process water use is based on 0.0056MGD for distribution system uses and on the remainder being water plant processes (filter-to-waste and backwashing). Unaccounted-for water is projected to be reduced to approximately 36% by the year 2060 as the Town gradually replaces aging infrastructure and reduces system pressure where feasible. We assume a reduction of 0.02 MGD per decade as we replace infrastructure.

Demand v/s Percent of Supply
  2024 2030 2040 2050 2060 2070
Surface Water Supply 0.2400 0.2400 0.2400 0.2400 0.2400 0.2400
Ground Water Supply 0.1040 0.1040 0.1040 0.1040 0.1040 0.1040
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) 0.3440 0.3440 0.3440 0.3440 0.3440 0.3440
Service Area Demand 0.5197 0.6111 0.7548 0.8449 0.8854 0.8869
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) 0.5197 0.6111 0.7548 0.8449 0.8854 0.8869
Demand as Percent of Supply 151% 178% 219% 246% 257% 258%

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 177 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.    The 196 gpcd is based on the current residential demand of 0.133 MGD divided by the year-round population of 679. A more realistic estimation of per
capita water demand would be to divide the maximum day demand in December (1.088 MGD less non-residential uses of 0.359 MGD) by the estimated seasonal peak population of 5,569. This yields 131 gpcd.

Are there other demand management practices you will implement to reduce your future supply needs?   Beech Mountain's system wide water loss is the primary reason for the high water demand. Virtually all of the substandard distribution water lines and service connections were installed by developers before the town was incorporated. As was done this year, the town plans to target and replace sections of the distribution system each year. Beech Mountain continues to operate with new accounting and billing practices in an effort to monitor and reduce water loss through digital meters and reading practices. The town continues to use leak detection equipment and practices to identify and repair water loss sources that are found.

What supplies other than the ones listed in future supplies are being considered to meet your future supply needs?   The Town of Beech Mountain has sought assistance through the legislative House Bill 609 process in order to identify the town's future water supply needs and the options to meet these needs. Per the recommendation in the State's report, the town continues to work toward a potential emergency water intake on the Watauga River. The Town is also pursuing other options including groundwater wells and has begun construction on the Pinnacle Ridge Well site. This well has indicated that .104 MGD is the expected supply volume upon completed construction in March 2024.
Lake Coffey expansion project is currently underway with engineering and finance proposals. The town has progressed forward with this project and the financing is currently underway with FEMA. This project is expected to be complete in 2028 providing additional water supply for the town.

How does the water system intend to implement the demand management and supply planning components above?   Beech Mountain has obtained a potential intake site on the Watauga River, which NC DWR has concurred is needed. Beech Mountain water lines and water taps are being systematically replaced over the course of several years. Beech Mountain water rates have been increased, and will need to continue to be increased.

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?  own of Beech Mountain Water and Sewer Study by” Rothrock Engineering (P. Marion Rothrock,
P.E.date 2/28/2011).
Town of Beech Mountain -Buckeye Lake Yield Analysis by West Consultants dated February 7, 2014. Town of Beech Mountain Analysis of Future Water Supply Needs and Availability by the NC Division of Water Resources – Water Supply Planning Branch dated September 1, 2015. Beech Mountain Town Council Special Work Session Watauga Water Intake project Agenda Packet-February 25th 2020, 401 Water Quality Certification No. 1756 – November 2019.

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:   According to the February 2014 Buckeye Lake Yield Analysis document by West Consultants, the safe yield of Buckeye Lake is approximately 0.3 mgd; however, this value is only valid under specific qualifying conditions. The most important condition is that this value does not include the existing minimum release requirements set forth in the United States Army Corps of Engineers (USACE) Permit (i.e., Section 404 of the Clean Water Act) for construction of the Buckeye Lake dam. The permit, issued November 1984, requires a minimum flow release from the dam of 2.8 cfs (1.8 mgd)
through October, November and December, intended to provide needed flows during the native brook trout spawning period. The remainder of the year (i.e., January through September), the required minimum release is 1.5 cfs (0.97 mgd), intended to maintain the existing water quality of Buckeye Creek. The 2014 Yield Analysis report makes it clear that when including the required minimum releases, as dictated by the USACE permit, the safe yield should be considered zero under low flow conditions or in times o drought. It should also be noted that similar to the Buckeye Creek flow estimations, the safe yield calculations used USGS gage data from the Watauga and Elk Rivers. In light of recent DWR modelling difficulties regarding Buckeye Creek, use of these values should be considered questionable, even though this methodology is the only available means to make such estimations.
The 1984 minimum release requirements used in the 2014 Buckeye Lake Yield Analysis document by West Consultants were not achievable during droughts such as the town experienced in 2010. Therefore, the town requested a modification to the dam permit issued by US Army Corps of Engineers. On November 20th, 2019 The Town of Beech Mountain received approval of Individual 401 Water Quality Certification (Certification #1756)(USACE Action ID. No. SAW-2018-02144) which replaces the certification based on October 8th, 1984. The new minimums approved are still significant (up to 1.64 MGD) but are more achievable. Based on this new certification protocol, West Consultants has re-calculated the estimated yield of Buckeye Lake to be 0.240 MGD. However, yields shown are theoretical and based on the assumption that the Buckeye Lake watershed characteristics mimic the Watauga River watershed. Actual yields may be lower.
In 2019 Beech Mountain moved forward to aid this calculation process by partnering with the U.S. Department of the Interior; U.S. Geological Survey to install and maintain stream gage stations upstream and downstream of the Buckeye Lake Reservoir. This data will be used to provide accurate stream flow calculations into the future aiding the ability to accurately meet USACE permit requirements. This data will be used to build a historical database for more accurate stream flow calculations.

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.