PlainWater
States → Michigan

Community Water System · PWS MI0004490

Morenci

Morenci, Michigan 49256 - drinking water served from groundwater sources to 2,220 people, tracked in EPA SDWIS and UCMR5.

2,220
People served
44
EPA violations
22
Health-based
Untested
UCMR5 result

The verdict

EPA records 44 drinking-water violations at Morenci, 50% of them health-based - above the Michigan per-system average.

44
Total EPA violations on record
50%
Health-based (MCL / treatment failure)
2,220
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Morenci

Morenci is a local-owned community water system that delivers drinking water to 2,220 residents in Morenci, Michigan (Lenawee County) through 897 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 44 total violations for this system , of which 22 (50%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 16 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 18 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 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%).

Morenci's 44 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
2,220
Total Violations
44
Health-Based Violations
22
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
897
County
Lenawee
School/Daycare
No
MCL Violations
18
Monitoring Violations
16
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 18 1999
Nitrate MR 5 2000
Revised Total Coliform Rule RPT 4 2022
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 2018
TTHM MR 3 2018
Total Haloacetic Acids (HAA5) MR 3 2018
Coliform (TCR) MR 3 1993
Lead and Copper Rule MR 2 2018

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 Morenci.

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 MI0004490 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 Morenci 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
2022 Revised Total Coliform Rule RPT 4 SDWIS / MI0004490 / 8000
2018 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 SDWIS / MI0004490 / 0400
2018 TTHM MR 3 SDWIS / MI0004490 / 2950
2018 Total Haloacetic Acids (HAA5) MR 3 SDWIS / MI0004490 / 2456
2018 Lead and Copper Rule MR 2 SDWIS / MI0004490 / 5000
2000 Nitrate MR 5 SDWIS / MI0004490 / 1040
1999 Coliform (TCR) MCL 18 SDWIS / MI0004490 / 3100
1993 Coliform (TCR) MR 3 SDWIS / MI0004490 / 3100

How Morenci Compares

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

Metric Morenci Michigan avg Federal benchmark
Total violations 44 23.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 22 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 2,220 830 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 Morenci water safe to drink? ▼
Morenci (PWS ID: MI0004490) has 44 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,220 people using Groundwater sources.
How many people does Morenci serve? ▼
Morenci serves 2,220 people in Morenci, Michigan. It is a Local-owned system using Groundwater water sources with 897 service connections.
What type of violations does Morenci have? ▼
Morenci has 44 total violations: 22 health-based violations (MCL exceedances or treatment failures), 16 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Morenci water? ▼
No PFAS testing data is available for Morenci under the EPA's UCMR5 monitoring program.
What water source does Morenci use? ▼
Morenci 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.