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Community Water System · PWS NC3041023

Triple Lakes S/D

Cary, North Carolina 27511 - drinking water served from groundwater sources to 315 people, tracked in EPA SDWIS and UCMR5.

315
People served
123
EPA violations
14
Health-based
Untested
UCMR5 result

The verdict

EPA records 123 drinking-water violations at Triple Lakes S/D, 11% of them health-based - above the North Carolina per-system average.

123
Total EPA violations on record
11%
Health-based (MCL / treatment failure)
315
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Triple Lakes S/D

Triple Lakes S/D is a private-owned community water system that delivers drinking water to 315 residents in Cary, North Carolina (Guilford County) through 124 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 123 total violations for this system , of which 14 (11%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 105 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Combined Radium (-226 and -228), recorded in 14 violations (MCL, health-based). 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%).

Triple Lakes S/D's 123 violations sit above 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
315
Total Violations
123
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
124
County
Guilford
School/Daycare
No
MCL Violations
14
Monitoring Violations
105
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 14 2006
Gross Alpha, Excl. Radon and U MR 8 2004
Combined Radium (-226 and -228) MR 6 2004
53-IODINE-131 MR 5 2004
Combined Uranium MR 5 2004
38-STRONTIUM-90 MR 5 2004
Tritium MR 5 2004
Gross Beta Particle Activity MR 5 2004
Public Notice Other 4 2009
1,2,4-Trichlorobenzene MR 3 2008
cis-1,2-Dichloroethylene MR 3 2008
Xylenes, Total MR 3 2008
DICHLOROMETHANE MR 3 2008
o-Dichlorobenzene MR 3 2008
p-Dichlorobenzene MR 3 2008
Vinyl chloride MR 3 2008
trans-1,2-Dichloroethylene MR 3 2008
1,2-Dichloroethane MR 3 2008
1,1,1-Trichloroethane MR 3 2008
Carbon tetrachloride MR 3 2008
1,2-Dichloropropane MR 3 2008
1,1,2-Trichloroethane MR 3 2008
Tetrachloroethylene MR 3 2008
CHLOROBENZENE MR 3 2008
Benzene MR 3 2008
Ethylbenzene MR 3 2008
Lead and Copper Rule MR 3 2023
Trichloroethylene MR 3 2008
Styrene MR 3 2008
1,1-Dichloroethylene MR 3 2008

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 Triple Lakes 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 NC3041023 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 Triple Lakes 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
2023 Lead and Copper Rule MR 3 SDWIS / NC3041023 / 5000
2009 Public Notice Other 4 SDWIS / NC3041023 / 7500
2008 1,2,4-Trichlorobenzene MR 3 SDWIS / NC3041023 / 2378
2008 cis-1,2-Dichloroethylene MR 3 SDWIS / NC3041023 / 2380
2008 Xylenes, Total MR 3 SDWIS / NC3041023 / 2955
2008 DICHLOROMETHANE MR 3 SDWIS / NC3041023 / 2964
2008 o-Dichlorobenzene MR 3 SDWIS / NC3041023 / 2968
2008 p-Dichlorobenzene MR 3 SDWIS / NC3041023 / 2969
2008 Vinyl chloride MR 3 SDWIS / NC3041023 / 2976
2008 trans-1,2-Dichloroethylene MR 3 SDWIS / NC3041023 / 2979
2008 1,2-Dichloroethane MR 3 SDWIS / NC3041023 / 2980
2008 1,1,1-Trichloroethane MR 3 SDWIS / NC3041023 / 2981
2008 Carbon tetrachloride MR 3 SDWIS / NC3041023 / 2982
2008 1,2-Dichloropropane MR 3 SDWIS / NC3041023 / 2983
2008 1,1,2-Trichloroethane MR 3 SDWIS / NC3041023 / 2985

How Triple Lakes S/D Compares

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

Metric Triple Lakes S/D North Carolina avg Federal benchmark
Total violations 123 104.4 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 None 60.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 315 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 Triple Lakes S/D water safe to drink? ▼
Triple Lakes S/D (PWS ID: NC3041023) has 123 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 315 people using Groundwater sources.
How many people does Triple Lakes S/D serve? ▼
Triple Lakes S/D serves 315 people in Cary, North Carolina. It is a Private-owned system using Groundwater water sources with 124 service connections.
What type of violations does Triple Lakes S/D have? ▼
Triple Lakes S/D has 123 total violations: 14 health-based violations (MCL exceedances or treatment failures), 105 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Triple Lakes S/D water? ▼
No PFAS testing data is available for Triple Lakes S/D under the EPA's UCMR5 monitoring program.
What water source does Triple Lakes S/D use? ▼
Triple Lakes 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.