Polk County Water System

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

Incomplete

Water System Name: Polk County Water System   PWSID: 10-75-010
Mailing Address:P.O. Box 308
Columbus, NC 28722
Ownership:County
 
Contact Person:Marche PittmanTitle:County Manager
Phone:828-894-3301Cell/Mobile:--
 
Secondary Contact:Horace Steve Poteat Phone:828-863-2295
Mailing Address:5 Prospect St.
Inman, SC 29349
Cell/Mobile:--
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Ductile Iron 4-20 17.40 %
Polyvinyl Chloride 2-12 82.60 %
What are the estimated total miles of distribution system lines?   46 Miles
How many feet of distribution lines were replaced during 2014?   0 Feet
How many feet of new water mains were added during 2014?   29,000 Feet
How many meters were replaced in 2014?   1
How old are the oldest meters in this system?   9 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?   0.1320 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, 2 Years or More
Does this system have a valve exercise program?   Yes, 2 Years or More
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?   No
Water Conservation
What type of rate structure is used?   Flat/Fixed
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?   Yes

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Broad River (01-1)100 %
County(s)% of Service Population
Polk100 %
What was the year-round population served in 2014?   350
Has this system acquired another system since last report?   Yes

Polk County Water Department and Polk County Water Department South joined together to become Polk County Water System (10-75-010).

Water Use by Type
Type of Use Metered
Connections
Metered
Average Use (MGD)
Non-Metered
Connections
Non-Metered
Estimated Use (MGD)
Residential 121 0.0110 0 0.0000
Commercial 10 0.0160 0 0.0000
Industrial 0 0.0000 0 0.0000
Institutional 9 0.0040 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   0.0030 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
Inman Campobello Water District (SC) 42-20-002 3.2100 365 3.5000 2024 Yes Yes 20 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 2.9190 3.2110 May 3.0000 3.3000 Sep 3.7550 4.1300
Feb 3.3670 3.7030 Jun 3.7230 4.0950 Oct 3.0070 3.3070
Mar 2.5270 2.7800 Jul 3.5200 3.8720 Nov 3.6050 3.9660
Apr 3.2460 3.5700 Aug 3.5420 3.8960 Dec 2.7870 3.0650

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
Broad River Water Authority 01-81-035 3.2440 365 4.1000 2024 Yes Yes 20 Regular

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?   1
How many water service connections with septic systems does this system have?   139
Are there plans to build or expand wastewater treatment facilities in the next 10 years?   No

5. Planning

Projections
  2014 2020 2030 2040 2050 2060
Year-Round Population 350 690 1,215 1,725 3,450 4,485
Seasonal Population 0 0 0 0 0 0
 
Residential 0.0110 0.0460 0.0810 0.1150 0.2300 0.2990
Commercial 0.0160 0.0050 0.0070 0.0100 0.0200 0.0260
Industrial 0.0000 0.0010 0.0020 0.0030 0.0040 0.0050
Institutional 0.0040 0.0050 0.0070 0.0100 0.0200 0.0260
System Process 0.0030 0.0130 0.0180 0.0210 0.0250 0.0290
Unaccounted-for 0.0000 0.0030 0.0060 0.0100 0.0180 0.0230
Future Supply Sources
Source Name PWSID Source Type Additional Supply Year Online Year Offline Type
Green River/Lake Adger 00-00-000 Surface 6.0000 2045 Regular
North Pacolet River, SC 00-00-000 Surface 8.0000 2024 Regular

The Inman-Campobello Water District (ICWD) has a permit to withdraw 8 mgd from the North Pacolet River in Fingerville, SC. The ICWD will begin construction and have the intake (not necessarily the treatment facility) completed by January of 2018. The contract with the Broad River Water Authority (BRWA) comes to term in 2024. By this time, the ICWD and/or Polk County will likely have a new contract with BRWA. If not, the ICWD would be treating water at its own water treatment facility and possibly serving Polk County via this facility as well. In addition, Polk County owns Lake Adger and may use it for a water treatment facility to serve its customers.

The current line of thought is that ICWD and Polk County will continue to work together in the future concerning water resources and water service. With that in mind, for planning purposes BRWA is thought of as the primary option, the North Pacolet River in SC as the next option, and then water sources such as the Green River and Lake Adger as the final option. Each would only be brought into service as needed based on demands, pricing, and other factors. If it turns out that Polk County Water System can’t obtain water from BRWA or ICWD, then the water sources within the County will still be sufficient. These sources will simply have to be brought online sooner.

Demand v/s Percent of Supply
  2014 2020 2030 2040 2050 2060
Surface Water Supply 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Ground Water Supply 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Purchases 4.1000 4.1000 4.1000 4.1000 4.1000 4.1000
Future Supplies 0.0000 8.0000 8.0000 14.0000 14.0000
Total Available Supply (MGD) 4.1000 4.1000 12.1000 12.1000 18.1000 18.1000
Service Area Demand 0.0340 0.0730 0.1210 0.1690 0.3170 0.4080
Sales 3.2100 3.5000 3.5000 3.5000 3.5000 3.5000
Future Sales 0.0000 0.0000 0.0000 0.0000 0.0000
Total Demand (MGD) 3.2440 3.5730 3.6210 3.6690 3.8170 3.9080
Demand as Percent of Supply 79% 87% 30% 30% 21% 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 31 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.     Polk County will conduct an analysis to determine what volumes the increasing rate blocks should be and to determine the pricing of each rate block so that the desired affect (conservation) will be achieved, particularly during drought or similar circumstances.

The vast majority of the Polk County Water System is only a few years old. Consequently, leaks nor inaccurate meter readings are expected to be an issue for some time. Nonetheless, the water system has sophisticated leak detection equipment and will conduct water audits on the system as time progresses and especially if information from SCADA systems and/or wholesale meter readings indicate that a problem exists or is developing.

Are there other demand management practices you will implement to reduce your future supply needs?   Implementing an increasing block rate structure for all residential customers is planned. Residential lawn irrigation is not prevalent in Polk County however, this could change. Having an increasing block rate structure of water consumed above a certain amount (for example, 8,500 gal per month) will help reduce the water system’s future supply needs and particularly, the maximum day needs. Also, the water system will continue to promote responsible water use via literature and its website.

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?   Polk County will conduct an analysis to determine what volumes the increasing rate blocks should be and to determine the pricing of each rate block so that the desired affect (conservation) will be achieved, particularly during a drought or similar circumstances.

Additional Information

Has this system participated in regional water supply or water use planning?  Yes, Polk County Water System and Inman-Campobello Water District are currently discussing taking a regional approach concerning their respective water supplies. Demand forecasting, water supply safe yield determination, and other studies are being conducted along with discussions about how these resources would be best utilized from a regional perspective.

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.