South Mills

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

Complete

Water System Name: South Mills   PWSID: 04-15-010
Mailing Address:P.O. Box 279
South Mills, NC 27976		Ownership:Non-Profit
 
Contact Person:Charles SawyerTitle:ORC
Phone:252-771-5620Cell/Mobile:--
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Asbestos Cement 6-8 3.00 %
Ductile Iron 10 2.00 %
Polyvinyl Chloride 2-8 95.00 %
What are the estimated total miles of distribution system lines?   125 Miles
How many feet of distribution lines were replaced during 2002?   1,719 Feet
How many feet of new water mains were added during 2002?   3,625 Feet
How many meters were replaced in 2002?   250
How old are the oldest meters in this system?   15 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?   0.3950 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.   Yes

AC = 3.38%, DI = 1.86%, PVC = 94.76%

Programs
Does this system have a program to work or flush hydrants?   Yes, 2-6 Months
Does this system have a valve exercise program?   Yes, Every 3 Months
Does this system have a cross-connection program?   No
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
Water Conservation
What type of rate structure is used?   Flat
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
Albemarle Sound (12-1)0 %
County(s)% of Service Population
Camden0 %
Pasquotank0 %
What was the year-round population served in 2002?   4,840
Has this system acquired another system since last report?   
Water Use by Type
Type of Use Metered
Connections		 Metered
Average Use (MGD)		 Non-Metered
Connections		 Non-Metered
Estimated Use (MGD)
Residential 1,776 0.2150 0 0.0000
Commercial 0 0.0000 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.)?   0.0000 MGD

After initial review of plan and further discussion it appears there may be an error between monthly-metered water connections and the amount of water withdrawn. The discrepancy is due to well operation. Wells are run on an alternating schedule. The withdrawals are pumped through a single intake into the filter plant with a master meter reading taken after filtration. The alternating withdrawals along with filtration losses makes it difficult to accurately determine the average daily withdrawal for each well.

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 0.2340 0.3360 May 0.2620 0.3390 Sep 0.2760 0.4310
Feb 0.2400 0.3500 Jun 0.2820 0.4460 Oct 0.2990 0.5940
Mar 0.2440 0.7880 Jul 0.2910 0.4560 Nov 0.2400 0.3760
Apr 0.2790 0.4500 Aug 0.2810 0.3740 Dec 0.2460 0.3150

After initial review of plan and further discussion it appears there may be an error between monthly-metered water connections and the amount of water withdrawn. The discrepancy is due to well operation. Wells are run on an alternating schedule. The withdrawals are pumped through a single intake into the filter plant with a master meter reading taken after filtration. The alternating withdrawals along with filtration losses makes it difficult to accurately determine the average daily withdrawal for each well.

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
01 0.0250 250 0.040 0.0430 Regular
02 0.0250 250 0.040 0.0470 Regular
07 0.0210 250 0.021 0.0220 Regular
08 0.0250 250 0.040 0.0430 Regular
09 0.0250 250 0.036 0.0360 Regular
10 0.0250 250 0.025 0.0250 Regular
11 0.0250 250 0.034 0.0340 Regular
12 0.0250 250 0.036 0.0360 Regular
13 0.0250 250 0.031 0.0310 Regular
16 0.0250 250 0.036 0.0360 Regular
17 0.0200 250 0.019 0.0190 Regular
19 0.0240 250 0.024 0.0240 Regular
22 0.0250 250 0.029 0.0290 Regular
24 0.0250 250 0.027 0.0270 Regular
25 0.0230 250 0.023 0.0230 Regular
26 0.0250 250 0.029 0.0290 Regular
32 0.0250 250 0.026 0.0260 Regular
33 0.0230 250 0.023 0.0230 Regular
34 0.0250 250 0.040 0.0720 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
01 67 66 46 66 6 46 Yes
02 74 73 53 73 6 52 Yes
07 71 70 50 70 6 50 Yes
08 73 72 49 69 6 49 Yes
09 60 60 40 60 6 40 Yes
10 71 69 40 66 6 40 Yes
11 60 60 40 50 6 40 Yes
12 47 47 37 47 6 37 Yes
13 51 51 41 51 6 41 Yes
16 70 69 49 69 6 49 Yes
17 66 66 38 53 6 38 Yes
19 70 70 45 60 6 45 Yes
22 70 70 45 60 6 45 Yes
24 62 52 40 50 6 40 Yes
25 73 73 48 63 6 48 Yes
26 69 68 47 67 6 47 Yes
32 70 70 50 60 6 50 Yes
33 72 72 52 62 6 52 Yes
34 70 70 50 70 6 50 Yes
Are ground water levels monitored?   Yes, Monthly
Does this system have a wellhead protection program?   No

South Mills runs 10 wells each day to reach demand, wells are alternated, >10 wells per day are run to meet peak flow. Total usage is 1/2 of 0.625 mgd or 0.312 mgd (250 days of run time per well was used to provide an approximate total average daily usage). After initial review of plan and further discussion it appears there may be an error between monthly-metered water connections and the amount of water withdrawn. The discrepancy is due to well operation. Wells are run on an alternating schedule. The withdrawals are pumped through a single intake into the filter plant with a master meter reading taken after filtration. The alternating withdrawals along with filtration losses makes it difficult to accurately determine the average daily withdrawal for each well.

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
Pasquotank Co 04-70-015 0.0000 0 0.0000 Emergency
S Camden WSD 04-15-015 0.0000 0 0.2000 6 Emergency

No water purchased in 2002. Pasquotank Co contract has no limit.

Water Treatment Plants
Plant Name Permitted Capacity
(MGD)		 Is Raw Water Metered? Is Finished Water Ouput Metered? Source
South Mills 0.8640 Yes Yes Groundwater (19 shallow wells)
Did average daily water production exceed 80% of approved plant capacity for five consecutive days during 2002?  No
     If yes, was any water conservation implemented?  
Did average daily water production exceed 90% of approved plant capacity for five consecutive days during 2002?  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?  Yes

Source is 19 shallow wells - Yorktown

4. Wastewater Information

Monthly Discharges
Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)
Jan 0.0100 May 0.0110 Sep 0.0130
Feb 0.0100 Jun 0.0160 Oct 0.0130
Mar 0.0120 Jul 0.0170 Nov 0.0120
Apr 0.0140 Aug 0.0130 Dec 0.0110

How many sewer connections does this system have?   0
How many water service connections with septic systems does this system have?   1,776
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
NC0007978 0.0000 0.0250 0.0130 0.0170 Dismal Swamp Canal Albemarle Sound (12-1)

Permit status is "Under Review".

5. Planning

Projections
  2002 2010 2020 2030
Year-Round Population 4,840 5,412 6,155 6,871
Seasonal Population 0 0 0 0
 
Residential 0.2150 0.2400 0.2730 0.3050
Commercial 0.0000 0.0000 0.0000 0.0000
Industrial 0.0000 0.0000 0.0000 0.0000
Institutional 0.0000 0.0000 0.0000 0.0000
System Process 0.0000 0.0000 0.0000 0.0000
Unaccounted-for 0.1008 0.0580 0.0660 0.0740
Demand v/s Percent of Supply
  2002 2010 2020 2030
Surface Water Supply 0.0000 0.0000 0.0000 0.0000
Ground Water Supply 0.6250 0.6250 0.6250 0.6250
Purchases 0.0000 0.0000 0.0000 0.0000
Future Supplies 0.0000 0.0000 0.0000
Total Available Supply (MGD) 0.6250 0.6250 0.6250 0.6250
Service Area Demand 0.3158 0.2980 0.3390 0.3790
Sales 0.0000 0.0000 0.0000 0.0000
Future Sales 0.0000 0.0000 0.0000
Total Demand (MGD) 0.3158 0.2980 0.3390 0.3790
Demand as Percent of Supply 51% 48% 54% 61%

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 44 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?  Yes

What major water supply reports or studies were used for planning?  Hydrogeologic frame work and groundwater resources of the North Albemarle Region, North Carolina. by Jeff C. Lautier, NCDENR, DWR, September 1998.

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:   Future planned improvements are a 200,000 gallon Water Tower, Booster Pumps for Filling Tower, and Chlorine Booster Systems throughout Distribution 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.