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Community Water System · PWS MI0004510

Mount Clemens, City Of

Mt Clemens, Michigan 48045 - drinking water served from surface water sources to 16,314 people, tracked in EPA SDWIS and UCMR5.

16,314
People served
105
EPA violations
9
Health-based
1 PFAS
UCMR5 result

The verdict

EPA records 105 drinking-water violations at Mount Clemens, City Of, 9% of them health-based - above the Michigan per-system average, and UCMR5 testing detected 1 PFAS compound.

105
Total EPA violations on record
9%
Health-based (MCL / treatment failure)
16,314
People served by this system
1
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mount Clemens, City Of

Mount Clemens, City Of is a local-owned community water system that delivers drinking water to 16,314 residents in Mt Clemens, Michigan (Macomb County) through 5,880 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 105 total violations for this system , of which 9 (9%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 88 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 Total Haloacetic Acids (HAA5), recorded in 8 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 6.6 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Michigan, EPA tracks 10,959 public water systems serving 9,098,093 people, with 255,201 cumulative violations and 31,467 health-based violations on record. About 86% of systems in the state carry at least one violation, and state-wide the average per system is 23.3 violations. Statewide, 87 of 318 UCMR5-tested systems have reported PFAS detections (27.4%).

Mount Clemens, City Of's 105 violations sit above the Michigan average.

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
16,314
Total Violations
105
Health-Based Violations
9
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
5,880
County
Macomb
School/Daycare
No
MCL Violations
6
Monitoring Violations
88
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Total Haloacetic Acids (HAA5) MR 8 2021
TTHM MR 8 2021
Lead and Copper Rule MR 5 2021
TTHM MCL 4 2022
Bromate MR 4 2003
1,2,4-Trichlorobenzene MR 3 2017
cis-1,2-Dichloroethylene MR 3 2017
o-Dichlorobenzene MR 3 2017
p-Dichlorobenzene MR 3 2017
trans-1,2-Dichloroethylene MR 3 2017
1,2-Dichloroethane MR 3 2017
1,1,1-Trichloroethane MR 3 2017
1,1,2-Trichloroethane MR 3 2017
Tetrachloroethylene MR 3 2017
Ethylbenzene MR 3 2017
Styrene MR 3 2017
1,2-Dichloropropane MR 3 2017
CHLOROBENZENE MR 3 2017
DICHLOROMETHANE MR 3 2017
Xylenes, Total MR 3 2017
Trichloroethylene MR 3 2017
Carbon tetrachloride MR 3 2017
CARBON, TOTAL TT 3 2024
Benzene MR 3 2017
Toluene MR 3 2017
1,1-Dichloroethylene MR 3 2017
Vinyl chloride MR 3 2017
Coliform (TCR) MCL 2 2011
Consumer Confidence Rule Other 1 2000

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFTA 8/5/2024 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 8/5/2024 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 8/5/2024 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/5/2024 <6.00 ppt 6.00 ppt Not Detected
PFUnA 8/21/2024 <2.00 ppt 2.00 ppt Not Detected
PFEESA 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 8/21/2024 <20.00 ppt 20.00 ppt Not Detected
PFHpS 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeS 8/21/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 8/21/2024 <4.00 ppt 4.00 ppt Not Detected
9Cl-PF3ONS 8/21/2024 <2.00 ppt 2.00 ppt Not Detected
PFOA 8/21/2024 <4.00 ppt 4.00 ppt Not Detected
PFMBA 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 8/21/2024 <5.00 ppt 5.00 ppt Not Detected
PFPeA 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 8/21/2024 <4.00 ppt 4.00 ppt Not Detected
PFMPA 8/21/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxA 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 8/21/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 8/21/2024 6.60 ppt 5.00 ppt Detected
HFPO-DA 8/21/2024 <5.00 ppt 5.00 ppt Not Detected
ADONA 8/21/2024 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 8/21/2024 <5.00 ppt 5.00 ppt Not Detected
PFBS 5/7/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 5/7/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 5/7/2024 <3.00 ppt 3.00 ppt Not Detected
PFBA 5/7/2024 <5.00 ppt 5.00 ppt Not Detected
PFOA 5/7/2024 <4.00 ppt 4.00 ppt Not Detected
NEtFOSAA 5/7/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 5/7/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 5/7/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 5/7/2024 <2.00 ppt 2.00 ppt Not Detected
PFOS 5/7/2024 <4.00 ppt 4.00 ppt Not Detected
PFNA 5/7/2024 <4.00 ppt 4.00 ppt Not Detected
HFPO-DA 5/7/2024 <5.00 ppt 5.00 ppt Not Detected
PFHxA 5/7/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpS 5/7/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 5/7/2024 <3.00 ppt 3.00 ppt Not Detected
PFTA 5/7/2024 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 5/7/2024 <7.00 ppt 7.00 ppt Not Detected
ADONA 5/7/2024 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 5/7/2024 <6.00 ppt 6.00 ppt Not Detected
4:2 FTS 5/7/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 5/7/2024 <3.00 ppt 3.00 ppt 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 Mount Clemens, City Of.

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 MI0004510 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Michigan Drinking Water Authority

Michigan EGLE, Drinking Water and Environmental Health Division is the primacy agency that licenses and inspects Mount Clemens, City Of under EPA-delegated authority.

Open MI regulator portal

Source: Michigan EGLE, Drinking Water and Environmental Health Division

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 CARBON, TOTAL TT 3 SDWIS / MI0004510 / 2920
2022 TTHM MCL 4 SDWIS / MI0004510 / 2950
2021 Total Haloacetic Acids (HAA5) MR 8 SDWIS / MI0004510 / 2456
2021 TTHM MR 8 SDWIS / MI0004510 / 2950
2021 Lead and Copper Rule MR 5 SDWIS / MI0004510 / 5000
2017 1,2,4-Trichlorobenzene MR 3 SDWIS / MI0004510 / 2378
2017 cis-1,2-Dichloroethylene MR 3 SDWIS / MI0004510 / 2380
2017 o-Dichlorobenzene MR 3 SDWIS / MI0004510 / 2968
2017 p-Dichlorobenzene MR 3 SDWIS / MI0004510 / 2969
2017 trans-1,2-Dichloroethylene MR 3 SDWIS / MI0004510 / 2979
2017 1,2-Dichloroethane MR 3 SDWIS / MI0004510 / 2980
2017 1,1,1-Trichloroethane MR 3 SDWIS / MI0004510 / 2981
2017 1,1,2-Trichloroethane MR 3 SDWIS / MI0004510 / 2985
2017 Tetrachloroethylene MR 3 SDWIS / MI0004510 / 2987
2017 Ethylbenzene MR 3 SDWIS / MI0004510 / 2992

How Mount Clemens, City Of Compares

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

Metric Mount Clemens, City Of Michigan avg Federal benchmark
Total violations 105 23.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 9 2.9 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 27.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 16,314 830 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,959 regulated public water systems in Michigan.

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 Mount Clemens, City Of water safe to drink?
Mount Clemens, City Of (PWS ID: MI0004510) has 105 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 16,314 people using Surface Water sources.
How many people does Mount Clemens, City Of serve?
Mount Clemens, City Of serves 16,314 people in Mt Clemens, Michigan. It is a Local-owned system using Surface Water water sources with 5,880 service connections.
What type of violations does Mount Clemens, City Of have?
Mount Clemens, City Of has 105 total violations: 9 health-based violations (MCL exceedances or treatment failures), 88 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mount Clemens, City Of water?
Yes. UCMR5 testing detected 1 PFAS compound in Mount Clemens, City Of's water supply: PFBA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Mount Clemens, City Of use?
Mount Clemens, City Of 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.
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.
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.