SOUTHERN OUTER BANKS WTR SYST

Q: Is SOUTHERN OUTER BANKS WTR SYST water safe to drink?

SOUTHERN OUTER BANKS WTR SYST (PWS ID: NC6027001) has 311 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 8,209 people using Groundwater sources.

Q: What type of violations does SOUTHERN OUTER BANKS WTR SYST have?

SOUTHERN OUTER BANKS WTR SYST has 311 total violations: 14 health-based violations (MCL exceedances or treatment failures), 293 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Q: Has PFAS been detected in SOUTHERN OUTER BANKS WTR SYST water?

Yes. UCMR5 testing detected 1 PFAS compound in SOUTHERN OUTER BANKS WTR SYST's water supply: PFBS. PFAS are persistent "forever chemicals" that do not break down in the environment.

Q: What water source does SOUTHERN OUTER BANKS WTR SYST use?

SOUTHERN OUTER BANKS WTR SYST uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Q: Where does this data come from?

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Reviewed byPlainWater Editorial, Drinking Water Quality Editorial Team · June 4, 2026

PWS ID: NC6027001 · COROLLA, North Carolina 27927

SOUTHERN OUTER BANKS WTR SYST serves 8,209 people in COROLLA, North Carolina using Groundwater water sources. It has 311 recorded EPA violations, including 14 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: SOUTHERN OUTER BANKS WTR SYST

SOUTHERN OUTER BANKS WTR SYST is a local-owned community water system that delivers drinking water to 8,209 residents in COROLLA, North Carolina (Currituck County) through 3,232 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 311 total violations for this system , of which 14 (5%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 293 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is TTHM, recorded in 14 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 0.0037 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across North Carolina, EPA tracks 5,020 public water systems serving 9,877,724 people, with 524,053 cumulative violations and 38,492 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 104.4 violations. SOUTHERN OUTER BANKS WTR SYST's 311 violations sit above the North Carolina average. Statewide, 174 of 287 UCMR5-tested systems have reported PFAS detections (60.6%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served

8,209

Total Violations

311

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Local
Connections: 3,232
County: Currituck
School/Daycare: No
MCL Violations: 14
Monitoring Violations: 293
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
TTHM	MCL	14	2005
DICHLOROMETHANE	MR	8	2004
1,1-Dichloroethylene	MR	8	2004
Vinyl chloride	MR	8	2004
1,2-Dichloroethane	MR	8	2004
1,1,1-Trichloroethane	MR	8	2004
CHLOROBENZENE	MR	8	2004
Tetrachloroethylene	MR	8	2004
cis-1,2-Dichloroethylene	MR	8	2004
Trichloroethylene	MR	8	2004
Carbon tetrachloride	MR	8	2004
Toluene	MR	8	2004
Benzene	MR	8	2004
p-Dichlorobenzene	MR	8	2004
Xylenes, Total	MR	8	2004
1,2,4-Trichlorobenzene	MR	8	2004
trans-1,2-Dichloroethylene	MR	8	2004
Styrene	MR	8	2004
Ethylbenzene	MR	8	2004
o-Dichlorobenzene	MR	8	2004
1,2-Dichloropropane	MR	8	2004
1,1,2-Trichloroethane	MR	8	2004
TTHM	MR	5	2021
Aldicarb sulfone	MR	4	2004
Hexachlorocyclopentadiene	MR	4	2004
Lead and Copper Rule	MR	4	2004
Public Notice	Other	4	2005
Total Haloacetic Acids (HAA5)	MR	4	2021
Di(2-ethylhexyl) adipate	MR	4	2004
Toxaphene	MR	4	2004

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 60 samples detected PFAS.

Contaminant	Date	Result	MRL	Status
PFNA	5/8/2023	<0.004 µg/L	0.004 µg/L	Not Detected
11Cl-PF3OUdS	5/8/2023	<0.005 µg/L	0.005 µg/L	Not Detected
HFPO-DA	5/8/2023	<0.005 µg/L	0.005 µg/L	Not Detected
ADONA	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFBA	5/8/2023	<0.005 µg/L	0.005 µg/L	Not Detected
9Cl-PF3ONS	5/8/2023	<0.002 µg/L	0.002 µg/L	Not Detected
PFUnA	5/8/2023	<0.002 µg/L	0.002 µg/L	Not Detected
PFHxA	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFDoA	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFDA	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
6:2 FTS	5/8/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFOS	5/8/2023	<0.004 µg/L	0.004 µg/L	Not Detected
NFDHA	5/8/2023	<0.02 µg/L	0.02 µg/L	Not Detected
PFHxS	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHpA	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	5/8/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpS	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFTA	5/8/2023	<0.008 µg/L	0.008 µg/L	Not Detected
PFTrDA	5/8/2023	<0.007 µg/L	0.007 µg/L	Not Detected
NEtFOSAA	5/8/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFMBA	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
lithium	5/8/2023	<9 µg/L	9 µg/L	Not Detected
4:2 FTS	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFBS	5/8/2023	0.0037 µg/L	0.003 µg/L	Detected
PFPeS	5/8/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFEESA	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeA	5/8/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFMPA	5/8/2023	<0.004 µg/L	0.004 µg/L	Not Detected
8:2 FTS	5/8/2023	<0.005 µg/L	0.005 µg/L	Not Detected
NMeFOSAA	5/8/2023	<0.006 µg/L	0.006 µg/L	Not Detected
NMeFOSAA	11/14/2023	<0.006 µg/L	0.006 µg/L	Not Detected
PFDA	11/14/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFOS	11/14/2023	<0.004 µg/L	0.004 µg/L	Not Detected
lithium	11/14/2023	<9 µg/L	9 µg/L	Not Detected
PFBS	11/14/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHpA	11/14/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHxA	11/14/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFNA	11/14/2023	<0.004 µg/L	0.004 µg/L	Not Detected
NEtFOSAA	11/14/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFOA	11/14/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFDoA	11/14/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFUnA	11/14/2023	<0.002 µg/L	0.002 µg/L	Not Detected
11Cl-PF3OUdS	11/14/2023	<0.005 µg/L	0.005 µg/L	Not Detected
9Cl-PF3ONS	11/14/2023	<0.002 µg/L	0.002 µg/L	Not Detected
ADONA	11/14/2023	<0.003 µg/L	0.003 µg/L	Not Detected
HFPO-DA	11/14/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFHpS	11/14/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHxS	11/14/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFBA	11/14/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFTA	11/14/2023	<0.008 µg/L	0.008 µg/L	Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for SOUTHERN OUTER BANKS WTR SYST.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NC6027001 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

North Carolina Drinking Water Authority

North Carolina DEQ — Public Water Supply Section is the primacy agency that licenses and inspects SOUTHERN OUTER BANKS WTR SYST under EPA-delegated authority.

Open NC regulator portal

Source: North Carolina DEQ — Public Water Supply Section

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest)	Contaminant	Category	Count	EPA Record
2021	TTHM	MR	5	SDWIS / NC6027001 / 2950
2021	Total Haloacetic Acids (HAA5)	MR	4	SDWIS / NC6027001 / 2456
2005	TTHM	MCL	14	SDWIS / NC6027001 / 2950
2005	Public Notice	Other	4	SDWIS / NC6027001 / 7500
2004	DICHLOROMETHANE	MR	8	SDWIS / NC6027001 / 2964
2004	1,1-Dichloroethylene	MR	8	SDWIS / NC6027001 / 2977
2004	Vinyl chloride	MR	8	SDWIS / NC6027001 / 2976
2004	1,2-Dichloroethane	MR	8	SDWIS / NC6027001 / 2980
2004	1,1,1-Trichloroethane	MR	8	SDWIS / NC6027001 / 2981
2004	CHLOROBENZENE	MR	8	SDWIS / NC6027001 / 2989
2004	Tetrachloroethylene	MR	8	SDWIS / NC6027001 / 2987
2004	cis-1,2-Dichloroethylene	MR	8	SDWIS / NC6027001 / 2380
2004	Trichloroethylene	MR	8	SDWIS / NC6027001 / 2984
2004	Carbon tetrachloride	MR	8	SDWIS / NC6027001 / 2982
2004	Toluene	MR	8	SDWIS / NC6027001 / 2991

How SOUTHERN OUTER BANKS WTR SYST Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric	SOUTHERN OUTER BANKS WTR SYST	North Carolina avg	Federal benchmark
Total violations	311	104.4	SDWA compliance — any non-zero count is a recorded breach
Health-based violations	14	7.7	Indicates a contaminant exceeded a federal MCL
PFAS detection	1 compound	60.6%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	8,209	1,968	Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,020 regulated public water systems in North Carolina.

Federal MCL reference — Safe Drinking Water Act thresholds ▼

Contaminant	Federal MCL / Action Level	Note
Lead	0 mg/L (Action Level: 0.015 mg/L)	Lead and Copper Rule treatment technique
Arsenic	0.010 mg/L (10 ppb)	Health-based MCL since 2006
Total Coliform	Treatment technique (RTCR)	Indicator organism, monitoring trigger
PFOA / PFOS (PFAS)	4.0 ppt each (final 2024 rule)	Compliance deadline 2029
Nitrate (as N)	10 mg/L	Acute health risk for infants

Frequently Asked Questions

Is SOUTHERN OUTER BANKS WTR SYST water safe to drink? ▼

SOUTHERN OUTER BANKS WTR SYST (PWS ID: NC6027001) has 311 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 8,209 people using Groundwater sources.

How many people does SOUTHERN OUTER BANKS WTR SYST serve? ▼

SOUTHERN OUTER BANKS WTR SYST serves 8,209 people in COROLLA, North Carolina. It is a Local-owned system using Groundwater water sources with 3,232 service connections.

What type of violations does SOUTHERN OUTER BANKS WTR SYST have? ▼

SOUTHERN OUTER BANKS WTR SYST has 311 total violations: 14 health-based violations (MCL exceedances or treatment failures), 293 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in SOUTHERN OUTER BANKS WTR SYST water? ▼

Yes. UCMR5 testing detected 1 PFAS compound in SOUTHERN OUTER BANKS WTR SYST's water supply: PFBS. PFAS are persistent "forever chemicals" that do not break down in the environment.

What water source does SOUTHERN OUTER BANKS WTR SYST use? ▼

SOUTHERN OUTER BANKS WTR SYST uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Where does this data come from? ▼

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Explore PlainWater

Water in North Carolina

All systems in state

All States

Water quality by state

Contaminants

PFAS & other pollutants

Guides

Understanding water quality

Related Data for North Carolina

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

Browse all → | Rankings →

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial