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Community Water System · PWS WI7370168

Stratford Waterworks

Stratford, Wisconsin 54484-0012 - drinking water served from groundwater sources to 1,643 people, tracked in EPA SDWIS and UCMR5.

1,643
People served
129
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 129 drinking-water violations at Stratford Waterworks, 2% of them health-based - above the Wisconsin per-system average.

129
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
1,643
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Stratford Waterworks

Stratford Waterworks is a local-owned community water system that delivers drinking water to 1,643 residents in Stratford, Wisconsin (Marathon County) through 594 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 129 total violations for this system , of which 2 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 123 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 11 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 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%).

Stratford Waterworks's 129 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
1,643
Total Violations
129
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
594
County
Marathon
School/Daycare
No
MCL Violations
0
Monitoring Violations
123
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 11 2001
Gross Alpha, Excl. Radon and U MR 4 2008
Radium-226 MR 4 2008
Radium-228 MR 4 2008
cis-1,2-Dichloroethylene MR 4 2008
o-Dichlorobenzene MR 4 2008
p-Dichlorobenzene MR 4 2008
Vinyl chloride MR 4 2008
trans-1,2-Dichloroethylene MR 4 2008
1,1,2-Trichloroethane MR 4 2008
Tetrachloroethylene MR 4 2008
TTHM MR 4 2023
Carbon tetrachloride MR 4 2008
Toluene MR 4 2008
Total Haloacetic Acids (HAA5) MR 4 2023
Combined Radium (-226 and -228) MR 4 2008
1,2,4-Trichlorobenzene MR 4 2008
1,2-Dichloropropane MR 4 2008
DICHLOROMETHANE MR 4 2008
CHLOROBENZENE MR 4 2008
Styrene MR 4 2008
1,2-Dichloroethane MR 4 2008
Benzene MR 4 2008
1,1-Dichloroethylene MR 4 2008
1,1,1-Trichloroethane MR 4 2008
Ethylbenzene MR 4 2008
Trichloroethylene MR 4 2008
Xylenes, Total MR 4 2008
Combined Uranium MR 4 2008
Public Notice Other 2 2024

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 Stratford 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 WI7370168 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 Stratford 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
2024 Public Notice Other 2 SDWIS / WI7370168 / 7500
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / WI7370168 / 5200
2023 TTHM MR 4 SDWIS / WI7370168 / 2950
2023 Total Haloacetic Acids (HAA5) MR 4 SDWIS / WI7370168 / 2456
2008 Gross Alpha, Excl. Radon and U MR 4 SDWIS / WI7370168 / 4000
2008 Radium-226 MR 4 SDWIS / WI7370168 / 4020
2008 Radium-228 MR 4 SDWIS / WI7370168 / 4030
2008 cis-1,2-Dichloroethylene MR 4 SDWIS / WI7370168 / 2380
2008 o-Dichlorobenzene MR 4 SDWIS / WI7370168 / 2968
2008 p-Dichlorobenzene MR 4 SDWIS / WI7370168 / 2969
2008 Vinyl chloride MR 4 SDWIS / WI7370168 / 2976
2008 trans-1,2-Dichloroethylene MR 4 SDWIS / WI7370168 / 2979
2008 1,1,2-Trichloroethane MR 4 SDWIS / WI7370168 / 2985
2008 Tetrachloroethylene MR 4 SDWIS / WI7370168 / 2987
2008 Carbon tetrachloride MR 4 SDWIS / WI7370168 / 2982

How Stratford Waterworks Compares

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

Metric Stratford Waterworks Wisconsin avg Federal benchmark
Total violations 129 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 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 1,643 467 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 Stratford Waterworks water safe to drink? ▼
Stratford Waterworks (PWS ID: WI7370168) has 129 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,643 people using Groundwater sources.
How many people does Stratford Waterworks serve? ▼
Stratford Waterworks serves 1,643 people in Stratford, Wisconsin. It is a Local-owned system using Groundwater water sources with 594 service connections.
What type of violations does Stratford Waterworks have? ▼
Stratford Waterworks has 129 total violations: 2 health-based violations (MCL exceedances or treatment failures), 123 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Stratford Waterworks water? ▼
No PFAS testing data is available for Stratford Waterworks under the EPA's UCMR5 monitoring program.
What water source does Stratford Waterworks use? ▼
Stratford 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.