Ocracoke Sanitary District

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:	Ocracoke Sanitary District		PWSID:	04-48-020
Mailing Address:	P.O. Box 567 Ocracoke, NC 27960		Ownership:	District

Contact Person:	Earl H. Gaskins		Title:	Plant and Systems Manager
Phone:	252-928-5791		Cell/Mobile:	--

Secondary Contact:	Janie M. Garrish			Phone:	252-928-5791
Mailing Address:	P. O. Box 567 Ocracoke, NC 27960-0567	Cell/Mobile:		--

Distribution System

Line Type	Size Range (Inches)	Estimated % of lines
Polyvinyl Chloride	2-10	100.00 %

What are the estimated total miles of distribution system lines? 13 Miles

How many feet of distribution lines were replaced during 2023? 0 Feet

How many feet of new water mains were added during 2023? 0 Feet

How many meters were replaced in 2023? 18

How old are the oldest meters in this system? 11 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? 0.5500 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, Semi-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? Yes

Does this system have an active water conservation public education program? No

Does this system have a leak detection program? Yes

LINE INSPECTION, COMPARISON OF MONTLHY CONSUMPTION TO MONTHLY PRODUCTION

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

OCRACOKE IS AN ISLAND OFF THE COAST OF NC & WE ARE ACCESSIBLE ONLY BY FERRY( ATLANTIC OCEAN ON ONE SIDE,PAMLICO
SOUND ON OTHER HATTERAS AND OCRACOKE INTLETS ON EITHER END) THERE IS NO FEASIBLE WAY TO PHYSICALLY CONNECT
WITH ANY OTHER WATER SYSTEM.

2. Water Use Information

Service Area

Sub-Basin(s)	% of Service Population
Pamlico River & Sound (15-3)	100 %

County(s)	% of Service Population
Hyde	100 %

What was the year-round population served in 2023? 900

What was the seasonal population and months served in 2023? (if applicable) 16,000 ( Apr May Jun Jul Aug Sep Oct )

Has this system acquired another system since last report? No

Water Use by Type

Type of Use	Metered Connections	Metered Average Use (MGD)
Residential	1,133	0.0500
Commercial	172	0.0494
Industrial	0	0.0000
Institutional	15	0.0100

How much water was used for system processes (backwash, line cleaning, flushing, etc.)? 0.1300 MGD

OCRACOKE SANITARY DISTRICT SYSTEM PROCESS WATER IS REJECT WATER FROM THE REVERSE OSMOSIS PLANT WHICH
HAS 65% RECOVERY RATE FOR EVERY 100 GALLOSN PUMPED FROM WELLS. THIS CAN VARY SLIGHTLY.

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	0.1433	0.2330	May	0.2753	0.3280	Sep	0.3172	0.4510
Feb	0.1273	0.1600	Jun	0.3809	0.4970	Oct	0.2863	0.3470
Mar	0.1675	0.2220	Jul	0.4453	0.5790	Nov	0.2249	0.2960
Apr	0.2295	0.2940	Aug	0.4020	0.5870	Dec	0.1750	0.3330

OCRACOKE SANITARY DISTRICT HAS 3 WELLS BUT ONLY USE ONE AT A TIME AND USUALLY ONLY ONE PER DAY BUT
IF PLANT HAS TO RUN TWICE IN ONE DAY MAY RUN ON DIFFERENT WELL SECOND TIME.

Ground Water Sources

Name or Number	Average Daily Withdrawal (MGD)		Max Day Withdrawal (MGD)	12-Hour Supply (MGD)	CUA Reduction	Year Offline	Use Type
Name or Number	MGD	Days Used	Max Day Withdrawal (MGD)	12-Hour Supply (MGD)	CUA Reduction	Year Offline	Use Type
1	0.0000	0	0	0.4320			Regular
2	0.2544	179	0.5870	0.7200			Regular
3	0.2725	187	0.5640	0.7200			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?
Name or Number	Well Depth (Feet)	Casing Depth (Feet)	Top	Bottom	Well Diameter (Inches)	Pump Intake Depth (Feet)	Metered?
1	622	603	603	622	8	40	Yes
2	640	605	605	640	10	80	Yes
3	622	602	602	622	10	80	Yes

Are ground water levels monitored? No,

Does this system have a wellhead protection program? Yes

WELL #1 IS ACTIVE BUT NOT USED OFTEN BECAUSE IT WILL ONLY RUN PART OF THE PLANT
DUE TO PIPE SIZE AND FLOW.

Water Treatment Plants

Plant Name	Permitted Capacity (MGD)	Is Raw Water Metered?	Is Finished Water Ouput Metered?	Source
Ocracoke Sanitary District	0.8500	Yes	Yes	Well #1, #2 & #3Castle Hayne Aquifer.

Did average daily water production exceed 80% of approved plant capacity for five consecutive days during 2023? No

If yes, was any water conservation implemented?

Did average daily water production exceed 90% of approved plant capacity for five consecutive days during 2023? 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	0.0753	May	0.1331	Sep	0.1755
Feb	0.0617	Jun	0.1872	Oct	0.1567
Mar	0.0819	Jul	0.2271	Nov	0.1283
Apr	0.1100	Aug	0.2197	Dec	0.1011

How many sewer connections does this system have? 0

How many water service connections with septic systems does this system have? 1,320

Are there plans to build or expand wastewater treatment facilities in the next 10 years? No

OCRACOKE HAS NO WASTEWATER TREATMENT PLANT ONLY SEPTIC SYSTEMS AND DRAIN FIELDS WHICH ARE REGULATED
AND PERMITED BY HYDE COUNTY HEALTH DEPARTMENT. OCRACOKE SANITARY DISTRICTS ONLY OPERATES THE WATER SYSTEM.

Wastewater Permits

Permit Number	Type	Permitted Capacity (MGD)	Design Capacity (MGD)	Average Annual Daily Discharge (MGD)	Maximum Day Discharge (MGD)	Receiving Stream	Receiving Basin
NC0041530	WTP	0.4500	0.0000	0.1400	0.3264	Pamlico Sound	Pamlico River & Sound (15-3)

5. Planning

Projections

	2023	2030	2040	2050	2060	2070
Year-Round Population	900	900	910	905	915	915
Seasonal Population	16,000	16,000	16,000	16,500	16,500	16,500

Residential	0.0500	0.0500	0.0510	0.0490	0.0500	0.0500
Commercial	0.0494	0.0494	0.0490	0.0470	0.0480	0.0485
Industrial	0.0000	0.0000	0.0000	0.0000	0.0000	0.0000
Institutional	0.0100	0.0100	0.0100	0.0090	0.0100	0.0100
System Process	0.1300	0.1300	0.1300	0.1200	0.1300	0.1300
Unaccounted-for	0.0250	0.0250	0.0260	0.0230	0.0240	0.0230

WEATHER CAN HAVE A BIG IMPACT ON SEASONAL POPULTION, FERRY SCHEDULES AND ROAD OVERWASH CAN ALSO IMPACT
THIS.

Demand v/s Percent of Supply

	2023	2030	2040	2050	2060	2070
Surface Water Supply	0.0000	0.0000	0.0000	0.0000	0.0000	0.0000
Ground Water Supply	1.8720	1.8720	1.8720	1.8720	1.8720	1.8720
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)	1.8720	1.8720	1.8720	1.8720	1.8720	1.8720
Service Area Demand	0.2644	0.2644	0.2660	0.2480	0.2620	0.2615
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)	0.2644	0.2644	0.2660	0.2480	0.2620	0.2615
Demand as Percent of Supply	14%	14%	14%	13%	14%	14%

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 56 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 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? OCRAOCKE SANITARY DISTRICT HAS RECEIVED FUNDING TO REPLACE ALL OLD FIRE HYDRANTS, DO A STUDY ON AGING EQUIPMENT
& TO BUILD NEW WATER TOWER TO REPLACE THE ONE THAT WAS BUILT IN LATE 1976- EARLY 1977. ENGINEERING PLANS HAVE TO
TO DEQ AND WE ARE WAITING FOR APPROVAL.

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:

NC DEQ Division of Water ResourcesLocal Water Supply Planning