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Community Water System · PWS MI0006930

Watervliet

Watervliet, Michigan 49098 - drinking water served from groundwater sources to 2,735 people, tracked in EPA SDWIS and UCMR5.

2,735
People served
162
EPA violations
9
Health-based
Untested
UCMR5 result

The verdict

EPA records 162 drinking-water violations at Watervliet, 6% of them health-based - above the Michigan per-system average.

162
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
2,735
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Watervliet

Watervliet is a local-owned community water system that delivers drinking water to 2,735 residents in Watervliet, Michigan (Berrien County) through 810 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 162 total violations for this system , of which 9 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 147 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 12 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 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%).

Watervliet's 162 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
2,735
Total Violations
162
Health-Based Violations
9
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
810
County
Berrien
School/Daycare
No
MCL Violations
5
Monitoring Violations
147
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 12 2002
Coliform (TCR) MCL 5 2007
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 2020
Nitrate MR 4 2023
Arsenic MR 4 2015
Barium MR 4 2015
Cadmium MR 4 2015
Chromium MR 4 2015
Mercury MR 4 2015
Antimony, Total MR 4 2015
Beryllium, Total MR 4 2015
Thallium, Total MR 4 2015
1,2,4-Trichlorobenzene MR 4 2021
cis-1,2-Dichloroethylene MR 4 2021
Xylenes, Total MR 4 2021
DICHLOROMETHANE MR 4 2021
o-Dichlorobenzene MR 4 2021
p-Dichlorobenzene MR 4 2021
Vinyl chloride MR 4 2021
Carbon tetrachloride MR 4 2021
1,2-Dichloropropane MR 4 2021
Trichloroethylene MR 4 2021
Tetrachloroethylene MR 4 2021
Ethylbenzene MR 4 2021
Styrene MR 4 2021
1,1,2-Trichloroethane MR 4 2021
CHLOROBENZENE MR 4 2021
Selenium MR 4 2015
1,1-Dichloroethylene MR 4 2021
1,1,1-Trichloroethane MR 4 2021

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 Watervliet.

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 MI0006930 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 Watervliet 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 Revised Total Coliform Rule MON 4 SDWIS / MI0006930 / 8000
2023 Nitrate MR 4 SDWIS / MI0006930 / 1040
2023 Consumer Confidence Rule Other 2 SDWIS / MI0006930 / 7000
2021 1,2,4-Trichlorobenzene MR 4 SDWIS / MI0006930 / 2378
2021 cis-1,2-Dichloroethylene MR 4 SDWIS / MI0006930 / 2380
2021 Xylenes, Total MR 4 SDWIS / MI0006930 / 2955
2021 DICHLOROMETHANE MR 4 SDWIS / MI0006930 / 2964
2021 o-Dichlorobenzene MR 4 SDWIS / MI0006930 / 2968
2021 p-Dichlorobenzene MR 4 SDWIS / MI0006930 / 2969
2021 Vinyl chloride MR 4 SDWIS / MI0006930 / 2976
2021 Carbon tetrachloride MR 4 SDWIS / MI0006930 / 2982
2021 1,2-Dichloropropane MR 4 SDWIS / MI0006930 / 2983
2021 Trichloroethylene MR 4 SDWIS / MI0006930 / 2984
2021 Tetrachloroethylene MR 4 SDWIS / MI0006930 / 2987
2021 Ethylbenzene MR 4 SDWIS / MI0006930 / 2992

How Watervliet Compares

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

Metric Watervliet Michigan avg Federal benchmark
Total violations 162 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 None 27.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,735 830 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 Watervliet water safe to drink? ▼
Watervliet (PWS ID: MI0006930) has 162 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,735 people using Groundwater sources.
How many people does Watervliet serve? ▼
Watervliet serves 2,735 people in Watervliet, Michigan. It is a Local-owned system using Groundwater water sources with 810 service connections.
What type of violations does Watervliet have? ▼
Watervliet has 162 total violations: 9 health-based violations (MCL exceedances or treatment failures), 147 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Watervliet water? ▼
No PFAS testing data is available for Watervliet under the EPA's UCMR5 monitoring program.
What water source does Watervliet use? ▼
Watervliet 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.