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Community Water System · PWS MI0004120

Marquette

Marquette, Michigan 49855 - drinking water served from surface water sources to 20,629 people, tracked in EPA SDWIS and UCMR5.

20,629
People served
80
EPA violations
3
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 80 drinking-water violations at Marquette, 4% of them health-based - above the Michigan per-system average.

80
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
20,629
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Marquette

Marquette is a local-owned community water system that delivers drinking water to 20,629 residents in Marquette, Michigan (Marquette County) through 6,856 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 80 total violations for this system , of which 3 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 66 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is 1,2,4-Trichlorobenzene, recorded in 3 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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%).

Marquette's 80 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.

Population Served
20,629
Total Violations
80
Health-Based Violations
3
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
6,856
County
Marquette
School/Daycare
No
MCL Violations
0
Monitoring Violations
66
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
1,2,4-Trichlorobenzene MR 3 2015
1,2-Dichloroethane MR 3 2015
Carbon tetrachloride MR 3 2015
1,2-Dichloropropane MR 3 2015
Trichloroethylene MR 3 2015
Tetrachloroethylene MR 3 2015
CHLOROBENZENE MR 3 2015
Benzene MR 3 2015
Toluene MR 3 2015
cis-1,2-Dichloroethylene MR 3 2015
Styrene MR 3 2015
Xylenes, Total MR 3 2015
DICHLOROMETHANE MR 3 2015
Vinyl chloride MR 3 2015
trans-1,2-Dichloroethylene MR 3 2015
Surface Water Treatment Rule TT 3 1992
1,1,1-Trichloroethane MR 3 2015
1,1-Dichloroethylene MR 3 2015
p-Dichlorobenzene MR 3 2015
1,1,2-Trichloroethane MR 3 2015
CARBON, TOTAL MR 3 2018
Ethylbenzene MR 3 2015
o-Dichlorobenzene MR 3 2015
Consumer Confidence Rule Other 2 2017

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
8:2 FTS 9/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFOS 9/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFTrDA 9/3/2024 <7.00 ppt 7.00 ppt Not Detected
PFDA 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 9/3/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/3/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 9/3/2024 <2.00 ppt 2.00 ppt Not Detected
ADONA 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 9/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFHxS 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 9/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFMPA 9/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeA 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 9/3/2024 <20.00 ppt 20.00 ppt Not Detected
PFPeS 9/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpS 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 9/3/2024 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 9/3/2024 <6.00 ppt 6.00 ppt Not Detected
PFTA 9/3/2024 <8.00 ppt 8.00 ppt Not Detected
6:2 FTS 9/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFOA 9/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFBS 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/3/2024 <3.00 ppt 3.00 ppt Not Detected
ADONA 6/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 6/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxS 6/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 6/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 6/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFBS 6/3/2024 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 6/3/2024 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 6/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 6/3/2024 <7.00 ppt 7.00 ppt Not Detected
PFTA 6/3/2024 <8.00 ppt 8.00 ppt Not Detected
PFHpS 6/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeS 6/3/2024 <4.00 ppt 4.00 ppt Not Detected
NFDHA 6/3/2024 <20.00 ppt 20.00 ppt Not Detected
11Cl-PF3OUdS 6/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFMBA 6/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 6/3/2024 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 6/3/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 6/3/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 6/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 6/3/2024 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 6/3/2024 <5.00 ppt 5.00 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 Marquette.

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 MI0004120 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 Marquette 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
2018 CARBON, TOTAL MR 3 SDWIS / MI0004120 / 2920
2017 Consumer Confidence Rule Other 2 SDWIS / MI0004120 / 7000
2015 1,2,4-Trichlorobenzene MR 3 SDWIS / MI0004120 / 2378
2015 1,2-Dichloroethane MR 3 SDWIS / MI0004120 / 2980
2015 Carbon tetrachloride MR 3 SDWIS / MI0004120 / 2982
2015 1,2-Dichloropropane MR 3 SDWIS / MI0004120 / 2983
2015 Trichloroethylene MR 3 SDWIS / MI0004120 / 2984
2015 Tetrachloroethylene MR 3 SDWIS / MI0004120 / 2987
2015 CHLOROBENZENE MR 3 SDWIS / MI0004120 / 2989
2015 Benzene MR 3 SDWIS / MI0004120 / 2990
2015 Toluene MR 3 SDWIS / MI0004120 / 2991
2015 cis-1,2-Dichloroethylene MR 3 SDWIS / MI0004120 / 2380
2015 Styrene MR 3 SDWIS / MI0004120 / 2996
2015 Xylenes, Total MR 3 SDWIS / MI0004120 / 2955
2015 DICHLOROMETHANE MR 3 SDWIS / MI0004120 / 2964

How Marquette Compares

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

Metric Marquette Michigan avg Federal benchmark
Total violations 80 23.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 2.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 27.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 20,629 830 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 Marquette water safe to drink?
Marquette (PWS ID: MI0004120) has 80 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 20,629 people using Surface Water sources.
How many people does Marquette serve?
Marquette serves 20,629 people in Marquette, Michigan. It is a Local-owned system using Surface Water water sources with 6,856 service connections.
What type of violations does Marquette have?
Marquette has 80 total violations: 3 health-based violations (MCL exceedances or treatment failures), 66 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Marquette water?
No. Marquette was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Marquette use?
Marquette 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.