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Community Water System · PWS TN0000420

McEwen Waterworks

McEwen, Tennessee 37101 - drinking water served from groundwater sources to 3,594 people, tracked in EPA SDWIS and UCMR5.

3,594
People served
47
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 47 drinking-water violations at McEwen Waterworks - below the Tennessee per-system average.

47
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
3,594
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: McEwen Waterworks

McEwen Waterworks is a local-owned community water system that delivers drinking water to 3,594 residents in McEwen, Tennessee (Humphreys County) through 1,351 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 47 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 42 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 10 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 Tennessee, EPA tracks 762 public water systems serving 7,934,203 people, with 43,318 cumulative violations and 9,414 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 56.8 violations. Statewide, 93 of 277 UCMR5-tested systems have reported PFAS detections (33.6%).

McEwen Waterworks's 47 violations sit below the Tennessee 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
3,594
Total Violations
47
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,351
County
Humphreys
School/Daycare
No
MCL Violations
0
Monitoring Violations
42
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 10 2011
Chlorine MR 9 2011
Nitrate MR 4 2021
Simazine MR 4 2022
Atrazine MR 4 2022
Lead and Copper Rule MR 4 2022
Consumer Confidence Rule Other 3 2000
Total Haloacetic Acids (HAA5) MR 3 2024
TTHM MR 3 2024
Gross Alpha, Excl. Radon and U MR 1 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 McEwen Waterworks.

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 TN0000420 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Tennessee Drinking Water Authority

Tennessee Department of Environment & Conservation, Drinking Water is the primacy agency that licenses and inspects McEwen Waterworks under EPA-delegated authority.

Open TN regulator portal

Source: Tennessee Department of Environment & Conservation, Drinking Water

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
2024 Total Haloacetic Acids (HAA5) MR 3 SDWIS / TN0000420 / 2456
2024 TTHM MR 3 SDWIS / TN0000420 / 2950
2022 Simazine MR 4 SDWIS / TN0000420 / 2037
2022 Atrazine MR 4 SDWIS / TN0000420 / 2050
2022 Lead and Copper Rule MR 4 SDWIS / TN0000420 / 5000
2021 Nitrate MR 4 SDWIS / TN0000420 / 1040
2011 Coliform (TCR) MR 10 SDWIS / TN0000420 / 3100
2011 Chlorine MR 9 SDWIS / TN0000420 / 0999
2000 Consumer Confidence Rule Other 3 SDWIS / TN0000420 / 7000
1980 Gross Alpha, Excl. Radon and U MR 1 SDWIS / TN0000420 / 4000

How McEwen Waterworks Compares

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

Metric McEwen Waterworks Tennessee avg Federal benchmark
Total violations 47 56.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 12.4 Indicates a contaminant exceeded a federal MCL
PFAS detection None 33.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,594 10,412 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 762 regulated public water systems in Tennessee.

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 McEwen Waterworks water safe to drink? ▼
McEwen Waterworks (PWS ID: TN0000420) has 47 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,594 people using Groundwater sources.
How many people does McEwen Waterworks serve? ▼
McEwen Waterworks serves 3,594 people in McEwen, Tennessee. It is a Local-owned system using Groundwater water sources with 1,351 service connections.
What type of violations does McEwen Waterworks have? ▼
McEwen Waterworks has 47 total violations: 0 health-based violations (MCL exceedances or treatment failures), 42 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in McEwen Waterworks water? ▼
No PFAS testing data is available for McEwen Waterworks under the EPA's UCMR5 monitoring program.
What water source does McEwen Waterworks use? ▼
McEwen Waterworks 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.