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Community Water System · PWS WI6620331

Strum Waterworks

Strum, Wisconsin 54770 - drinking water served from groundwater sources to 1,100 people, tracked in EPA SDWIS and UCMR5.

1,100
People served
357
EPA violations
18
Health-based
Untested
UCMR5 result

The verdict

EPA records 357 drinking-water violations at Strum Waterworks, 5% of them health-based - above the Wisconsin per-system average.

357
Total EPA violations on record
5%
Health-based (MCL / treatment failure)
1,100
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Strum Waterworks

Strum Waterworks is a local-owned community water system that delivers drinking water to 1,100 residents in Strum, Wisconsin (Trempealeau County) through 538 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 357 total violations for this system , of which 18 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 325 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 17 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 Wisconsin, EPA tracks 10,988 public water systems serving 5,131,439 people, with 285,161 cumulative violations and 58,688 health-based violations on record. About 72% of systems in the state carry at least one violation, and state-wide the average per system is 26 violations. Statewide, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%).

Strum Waterworks's 357 violations sit above the Wisconsin 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
1,100
Total Violations
357
Health-Based Violations
18
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
538
County
Trempealeau
School/Daycare
No
MCL Violations
17
Monitoring Violations
325
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 17 2011
1,2,4-Trichlorobenzene MR 13 2008
Vinyl chloride MR 13 2008
1,1-Dichloroethylene MR 13 2008
trans-1,2-Dichloroethylene MR 13 2008
1,2-Dichloroethane MR 13 2008
Carbon tetrachloride MR 13 2008
1,2-Dichloropropane MR 13 2008
CHLOROBENZENE MR 13 2008
Benzene MR 13 2008
Xylenes, Total MR 13 2008
DICHLOROMETHANE MR 13 2008
1,1,1-Trichloroethane MR 13 2008
1,1,2-Trichloroethane MR 13 2008
Toluene MR 13 2008
Ethylbenzene MR 13 2008
Styrene MR 13 2008
Trichloroethylene MR 13 2008
cis-1,2-Dichloroethylene MR 13 2008
o-Dichlorobenzene MR 13 2008
p-Dichlorobenzene MR 13 2008
Tetrachloroethylene MR 13 2008
Lead and Copper Rule MR 11 1997
Combined Radium (-226 and -228) MR 8 2009
Gross Alpha, Excl. Radon and U MR 8 2009
Radium-228 MR 8 2009
Consumer Confidence Rule Other 7 2009
Coliform (TCR) MR 4 2007
Total Haloacetic Acids (HAA5) MR 4 2008
TTHM MR 4 2008

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 Strum 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 WI6620331 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Wisconsin Drinking Water Authority

Wisconsin DNR, Drinking Water and Groundwater is the primacy agency that licenses and inspects Strum Waterworks under EPA-delegated authority.

Open WI regulator portal

Source: Wisconsin DNR, Drinking Water and Groundwater

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
2025 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / WI6620331 / 5200
2011 Coliform (TCR) MCL 17 SDWIS / WI6620331 / 3100
2009 Combined Radium (-226 and -228) MR 8 SDWIS / WI6620331 / 4010
2009 Gross Alpha, Excl. Radon and U MR 8 SDWIS / WI6620331 / 4000
2009 Radium-228 MR 8 SDWIS / WI6620331 / 4030
2009 Consumer Confidence Rule Other 7 SDWIS / WI6620331 / 7000
2008 1,2,4-Trichlorobenzene MR 13 SDWIS / WI6620331 / 2378
2008 Vinyl chloride MR 13 SDWIS / WI6620331 / 2976
2008 1,1-Dichloroethylene MR 13 SDWIS / WI6620331 / 2977
2008 trans-1,2-Dichloroethylene MR 13 SDWIS / WI6620331 / 2979
2008 1,2-Dichloroethane MR 13 SDWIS / WI6620331 / 2980
2008 Carbon tetrachloride MR 13 SDWIS / WI6620331 / 2982
2008 1,2-Dichloropropane MR 13 SDWIS / WI6620331 / 2983
2008 CHLOROBENZENE MR 13 SDWIS / WI6620331 / 2989
2008 Benzene MR 13 SDWIS / WI6620331 / 2990

How Strum Waterworks Compares

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

Metric Strum Waterworks Wisconsin avg Federal benchmark
Total violations 357 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 18 5.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 38.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,100 467 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,988 regulated public water systems in Wisconsin.

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 Strum Waterworks water safe to drink? ▼
Strum Waterworks (PWS ID: WI6620331) has 357 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,100 people using Groundwater sources.
How many people does Strum Waterworks serve? ▼
Strum Waterworks serves 1,100 people in Strum, Wisconsin. It is a Local-owned system using Groundwater water sources with 538 service connections.
What type of violations does Strum Waterworks have? ▼
Strum Waterworks has 357 total violations: 18 health-based violations (MCL exceedances or treatment failures), 325 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Strum Waterworks water? ▼
No PFAS testing data is available for Strum Waterworks under the EPA's UCMR5 monitoring program.
What water source does Strum Waterworks use? ▼
Strum 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.