Weyauwega, WI Tap Water Quality 2026

Water quality report for Weyauwega, WI — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Weyauwega's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Weyauwega Waterworks PWSID: WI4690403 Updated: 2026 Q2

✅

No federal limits exceeded on record

Lead is 6.00 ppb, 40% of the action level and no violations are open. PFAS has never been sampled at this system.

Weyauwega earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 6.00 ppb — 40% of the federal action level

PFAS never sampled at this system

50 violations since 2015, 0 health-based

No violations currently open

Weyauwega's lead level vs. all Wisconsin community water systems

0 ppb5 ppb10 ppb15 ppb

Lead level: 6.00 ppb — 40% of the federal action level

✓ Lower lead than 15% of Wisconsin utilities

Population Served

~750 connections

Water Source

Groundwater

Drawn from wells — SDWIS source code GW

Active Violations

50 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

40% of EPA action level

6.00 ppb

Action level: 15 ppb

The 90th-percentile lead result is 6.00 ppb, 40% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

Contaminant	Type	Measured	Limit	Period	Status
Endrin	MONITORING AND REPORTING	—	0.002 mg/L	2023	Resolved
Chlordane	MONITORING AND REPORTING	—	0.002 mg/L	2023	Resolved
HEXACHLOROBENZENE	MONITORING AND REPORTING	—	0.001 mg/L	2023	Resolved
2,4,5-TP	MONITORING AND REPORTING	—	0.05 mg/L	2023	Resolved
2,4-D	MONITORING AND REPORTING	—	0.07 mg/L	2023	Resolved
Heptachlor epoxide	MONITORING AND REPORTING	—	0.0002 mg/L	2023	Resolved
Heptachlor	MONITORING AND REPORTING	—	0.0004 mg/L	2023	Resolved
LASSO	MONITORING AND REPORTING	—	—	2023	Resolved
Atrazine	MONITORING AND REPORTING	—	0.003 mg/L	2023	Resolved
Carbofuran	MONITORING AND REPORTING	—	0.04 mg/L	2023	Resolved
Hexachlorocyclopentadiene	MONITORING AND REPORTING	—	0.05 mg/L	2023	Resolved
Dinoseb	MONITORING AND REPORTING	—	0.007 mg/L	2023	Resolved
Picloram	MONITORING AND REPORTING	—	0.5 mg/L	2023	Resolved
Simazine	MONITORING AND REPORTING	—	0.004 mg/L	2023	Resolved
OXAMYL	MONITORING AND REPORTING	—	0.2 mg/L	2023	Resolved
Glyphosate	MONITORING AND REPORTING	—	0.7 mg/L	2023	Resolved
Endothall	MONITORING AND REPORTING	—	0.1 mg/L	2023	Resolved
Diquat	MONITORING AND REPORTING	—	0.02 mg/L	2023	Resolved
Dalapon	MONITORING AND REPORTING	—	0.2 mg/L	2023	Resolved
Toxaphene	MONITORING AND REPORTING	—	0.003 mg/L	2023	Resolved
Methoxychlor	MONITORING AND REPORTING	—	0.04 mg/L	2023	Resolved
BHC-GAMMA	MONITORING AND REPORTING	—	0.0002 mg/L	2023	Resolved
Pentachlorophenol	MONITORING AND REPORTING	—	0.001 mg/L	2023	Resolved
Endrin	MONITORING AND REPORTING	—	0.002 mg/L	2023	Archived
BHC-GAMMA	MONITORING AND REPORTING	—	0.0002 mg/L	2023	Archived
Methoxychlor	MONITORING AND REPORTING	—	0.04 mg/L	2023	Archived
Toxaphene	MONITORING AND REPORTING	—	0.003 mg/L	2023	Archived
Dalapon	MONITORING AND REPORTING	—	0.2 mg/L	2023	Archived
Diquat	MONITORING AND REPORTING	—	0.02 mg/L	2023	Archived
Endothall	MONITORING AND REPORTING	—	0.1 mg/L	2023	Archived
Glyphosate	MONITORING AND REPORTING	—	0.7 mg/L	2023	Archived
OXAMYL	MONITORING AND REPORTING	—	0.2 mg/L	2023	Archived
Simazine	MONITORING AND REPORTING	—	0.004 mg/L	2023	Archived
Picloram	MONITORING AND REPORTING	—	0.5 mg/L	2023	Archived
Dinoseb	MONITORING AND REPORTING	—	0.007 mg/L	2023	Archived
Hexachlorocyclopentadiene	MONITORING AND REPORTING	—	0.05 mg/L	2023	Archived
Carbofuran	MONITORING AND REPORTING	—	0.04 mg/L	2023	Archived
Atrazine	MONITORING AND REPORTING	—	0.003 mg/L	2023	Archived
LASSO	MONITORING AND REPORTING	—	—	2023	Archived
Heptachlor	MONITORING AND REPORTING	—	0.0004 mg/L	2023	Archived
Heptachlor epoxide	MONITORING AND REPORTING	—	0.0002 mg/L	2023	Archived
2,4-D	MONITORING AND REPORTING	—	0.07 mg/L	2023	Archived
2,4,5-TP	MONITORING AND REPORTING	—	0.05 mg/L	2023	Archived
HEXACHLOROBENZENE	MONITORING AND REPORTING	—	0.001 mg/L	2023	Archived
Pentachlorophenol	MONITORING AND REPORTING	—	0.001 mg/L	2023	Archived
Chlordane	MONITORING AND REPORTING	—	0.002 mg/L	2023	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2017	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2017	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2016	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2016	Resolved

Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

50 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Weyauwega Waterworks

PWSID WI4690403

Water source Groundwater — Drawn from wells — SDWIS source code GW

Population served 80

Service connections 750

Systems serving this area 1

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Weyauwega tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open. Lead is 6.00 ppb, 40% of the action level.

Does Weyauwega water have PFAS? ▼

This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.

Who supplies water to Weyauwega? ▼

Weyauwega Waterworks (PWSID WI4690403). Groundwater. Drawn from wells — SDWIS source code GW

When was this system last inspected? ▼

It was last inspected on 2026-01-29. No significant deficiencies were recorded.

What Should Weyauwega Residents Do?

Consider a filter certified for lead

Look for NSF/ANSI 53 certification for lead reduction.

Check for a lead service line

Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.

Flush before drinking

If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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