PlainWater
States → North Carolina

LONG SHOALS WATER SYSTEM

PWS ID: NC0155103 · CARY, North Carolina 27511

LONG SHOALS WATER SYSTEM serves 196 people in CARY, North Carolina using Surface Water water sources. It has 270 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LONG SHOALS WATER SYSTEM

LONG SHOALS WATER SYSTEM is a private-owned community water system that delivers drinking water to 196 residents in CARY, North Carolina (Lincoln County) through 77 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 270 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 251 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Cadmium, recorded in 23 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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. LONG SHOALS WATER SYSTEM's 270 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.

Population Served
196
Total Violations
270
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
77
County
Lincoln
School/Daycare
No
MCL Violations
0
Monitoring Violations
251
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Cadmium MR 23 1991
Fluoride MR 23 1991
Barium MR 23 1991
Chromium MR 23 1991
Mercury MR 23 1991
Selenium MR 23 1991
Arsenic MR 23 1991
Nitrate MR 23 1993
Lead and Copper Rule MR 19 1993
Gross Alpha, Excl. Radon and U MR 14 1990
Consumer Confidence Rule Other 7 2025
Beryllium, Total MR 5 1991
Thallium, Total MR 5 1991
Nickel MR 5 1991
CYANIDE MR 5 1991
Antimony, Total MR 5 1991
Total Haloacetic Acids (HAA5) MR 5 2022
Gross Beta Particle Activity MR 2 1980
Combined Radium (-226 and -228) MR 2 1980

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 LONG SHOALS WATER SYSTEM.

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 NC0155103 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 LONG SHOALS WATER SYSTEM 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
2025 Consumer Confidence Rule Other 7 SDWIS / NC0155103 / 7000
2022 Total Haloacetic Acids (HAA5) MR 5 SDWIS / NC0155103 / 2456
1993 Nitrate MR 23 SDWIS / NC0155103 / 1040
1993 Lead and Copper Rule MR 19 SDWIS / NC0155103 / 5000
1991 Cadmium MR 23 SDWIS / NC0155103 / 1015
1991 Fluoride MR 23 SDWIS / NC0155103 / 1025
1991 Barium MR 23 SDWIS / NC0155103 / 1010
1991 Chromium MR 23 SDWIS / NC0155103 / 1020
1991 Mercury MR 23 SDWIS / NC0155103 / 1035
1991 Selenium MR 23 SDWIS / NC0155103 / 1045
1991 Arsenic MR 23 SDWIS / NC0155103 / 1005
1991 Beryllium, Total MR 5 SDWIS / NC0155103 / 1075
1991 Thallium, Total MR 5 SDWIS / NC0155103 / 1085
1991 Nickel MR 5 SDWIS / NC0155103 / 1036
1991 CYANIDE MR 5 SDWIS / NC0155103 / 1024

How LONG SHOALS WATER SYSTEM Compares

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

Metric LONG SHOALS WATER SYSTEM North Carolina avg Federal benchmark
Total violations 270 104.4 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 7.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 196 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 LONG SHOALS WATER SYSTEM water safe to drink? ▼
LONG SHOALS WATER SYSTEM (PWS ID: NC0155103) has 270 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 196 people using Surface Water sources.
How many people does LONG SHOALS WATER SYSTEM serve? ▼
LONG SHOALS WATER SYSTEM serves 196 people in CARY, North Carolina. It is a Private-owned system using Surface Water water sources with 77 service connections.
What type of violations does LONG SHOALS WATER SYSTEM have? ▼
LONG SHOALS WATER SYSTEM has 270 total violations: 0 health-based violations (MCL exceedances or treatment failures), 251 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LONG SHOALS WATER SYSTEM water? ▼
No PFAS testing data is available for LONG SHOALS WATER SYSTEM under the EPA's UCMR5 monitoring program.
What water source does LONG SHOALS WATER SYSTEM use? ▼
LONG SHOALS WATER SYSTEM uses Surface Water 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. This data is provided for informational purposes only.

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

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial