PlainWater
States → North Carolina

Community Water System · PWS NC0241210

Ridgewood S/D

Cary, North Carolina 27511 - drinking water served from groundwater sources to 668 people, tracked in EPA SDWIS and UCMR5.

668
People served
103
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 103 drinking-water violations at Ridgewood S/D - below the North Carolina per-system average.

103
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
668
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Ridgewood S/D

Ridgewood S/D is a private-owned community water system that delivers drinking water to 668 residents in Cary, North Carolina (Guilford County) through 263 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 103 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 100 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 8 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. Statewide, 174 of 287 UCMR5-tested systems have reported PFAS detections (60.6%).

Ridgewood S/D's 103 violations sit below the North Carolina average.

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
668
Total Violations
103
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
263
County
Guilford
School/Daycare
No
MCL Violations
0
Monitoring Violations
100
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 8 2002
Lead and Copper Rule MR 5 2015
Carbon tetrachloride MR 4 2003
1,2-Dichloroethane MR 4 2003
trans-1,2-Dichloroethylene MR 4 2003
1,1-Dichloroethylene MR 4 2003
Vinyl chloride MR 4 2003
Toluene MR 4 2003
Benzene MR 4 2003
CHLOROBENZENE MR 4 2003
Styrene MR 4 2003
1,2,4-Trichlorobenzene MR 4 2003
cis-1,2-Dichloroethylene MR 4 2003
Trichloroethylene MR 4 2003
Tetrachloroethylene MR 4 2003
o-Dichlorobenzene MR 4 2003
1,1,1-Trichloroethane MR 4 2003
p-Dichlorobenzene MR 4 2003
1,1,2-Trichloroethane MR 4 2003
1,2-Dichloropropane MR 4 2003
Ethylbenzene MR 4 2003
DICHLOROMETHANE MR 4 2003
Xylenes, Total MR 4 2003
Nitrate MR 3 2001
Consumer Confidence Rule Other 3 2002

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 Ridgewood S/D.

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 NC0241210 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 Ridgewood S/D 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
2015 Lead and Copper Rule MR 5 SDWIS / NC0241210 / 5000
2003 Carbon tetrachloride MR 4 SDWIS / NC0241210 / 2982
2003 1,2-Dichloroethane MR 4 SDWIS / NC0241210 / 2980
2003 trans-1,2-Dichloroethylene MR 4 SDWIS / NC0241210 / 2979
2003 1,1-Dichloroethylene MR 4 SDWIS / NC0241210 / 2977
2003 Vinyl chloride MR 4 SDWIS / NC0241210 / 2976
2003 Toluene MR 4 SDWIS / NC0241210 / 2991
2003 Benzene MR 4 SDWIS / NC0241210 / 2990
2003 CHLOROBENZENE MR 4 SDWIS / NC0241210 / 2989
2003 Styrene MR 4 SDWIS / NC0241210 / 2996
2003 1,2,4-Trichlorobenzene MR 4 SDWIS / NC0241210 / 2378
2003 cis-1,2-Dichloroethylene MR 4 SDWIS / NC0241210 / 2380
2003 Trichloroethylene MR 4 SDWIS / NC0241210 / 2984
2003 Tetrachloroethylene MR 4 SDWIS / NC0241210 / 2987
2003 o-Dichlorobenzene MR 4 SDWIS / NC0241210 / 2968

How Ridgewood S/D Compares

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

Metric Ridgewood S/D North Carolina avg Federal benchmark
Total violations 103 104.4 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 668 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Ridgewood S/D water safe to drink? ▼
Ridgewood S/D (PWS ID: NC0241210) has 103 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 668 people using Groundwater sources.
How many people does Ridgewood S/D serve? ▼
Ridgewood S/D serves 668 people in Cary, North Carolina. It is a Private-owned system using Groundwater water sources with 263 service connections.
What type of violations does Ridgewood S/D have? ▼
Ridgewood S/D has 103 total violations: 0 health-based violations (MCL exceedances or treatment failures), 100 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Ridgewood S/D water? ▼
No PFAS testing data is available for Ridgewood S/D under the EPA's UCMR5 monitoring program.
What water source does Ridgewood S/D use? ▼
Ridgewood S/D 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.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.