Medford, WI Tap Water Quality 2026

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

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

Main Utility: Medford Waterworks PWSID: WI8610125 Updated: 2026 Q2

✅

No federal limits exceeded on record

Lead is 2.80 ppb, 19% of the action level and no violations are open. PFAS was detected below the federal limit.

Medford earns an A for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 2.80 ppb — 19% of the federal action level

PFAS detected below the federal limit

49 violations since 2015, 0 health-based

No violations currently open

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

0 ppb5 ppb10 ppb15 ppb

Lead level: 2.80 ppb — 19% of the federal action level

✓ Lower lead than 40% of Wisconsin utilities

Population Served

~1829 connections

Water Source

Groundwater

Drawn from wells — SDWIS source code GW

Active Violations

49 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

19% of EPA action level

2.80 ppb

Action level: 15 ppb

The 90th-percentile lead result is 2.80 ppb, 19% 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
1,2-Dichloropropane	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
1,1,2-Trichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Tetrachloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
CHLOROBENZENE	MONITORING AND REPORTING	—	0.1 mg/L	2018	Resolved
Benzene	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Toluene	MONITORING AND REPORTING	—	1 mg/L	2018	Resolved
Ethylbenzene	MONITORING AND REPORTING	—	0.7 mg/L	2018	Resolved
Styrene	MONITORING AND REPORTING	—	0.1 mg/L	2018	Resolved
1,2,4-Trichlorobenzene	MONITORING AND REPORTING	—	0.07 mg/L	2018	Resolved
Trichloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Vinyl chloride	MONITORING AND REPORTING	—	0.002 mg/L	2018	Resolved
p-Dichlorobenzene	MONITORING AND REPORTING	—	0.075 mg/L	2018	Resolved
o-Dichlorobenzene	MONITORING AND REPORTING	—	0.6 mg/L	2018	Resolved
DICHLOROMETHANE	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Xylenes, Total	MONITORING AND REPORTING	—	10 mg/L	2018	Resolved
Carbon tetrachloride	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
1,1,1-Trichloroethane	MONITORING AND REPORTING	—	0.2 mg/L	2018	Resolved
1,1-Dichloroethylene	MONITORING AND REPORTING	—	0.007 mg/L	2018	Resolved
trans-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.1 mg/L	2018	Resolved
1,2-Dichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
cis-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.07 mg/L	2018	Resolved
Xylenes, Total	MONITORING AND REPORTING	—	10 mg/L	2018	Resolved
1,2,4-Trichlorobenzene	MONITORING AND REPORTING	—	0.07 mg/L	2018	Resolved
o-Dichlorobenzene	MONITORING AND REPORTING	—	0.6 mg/L	2018	Resolved
p-Dichlorobenzene	MONITORING AND REPORTING	—	0.075 mg/L	2018	Resolved
Vinyl chloride	MONITORING AND REPORTING	—	0.002 mg/L	2018	Resolved
1,1-Dichloroethylene	MONITORING AND REPORTING	—	0.007 mg/L	2018	Resolved
trans-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.1 mg/L	2018	Resolved
1,2-Dichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
1,1,1-Trichloroethane	MONITORING AND REPORTING	—	0.2 mg/L	2018	Resolved
1,2-Dichloropropane	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Trichloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
1,1,2-Trichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Tetrachloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
CHLOROBENZENE	MONITORING AND REPORTING	—	0.1 mg/L	2018	Resolved
Benzene	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Toluene	MONITORING AND REPORTING	—	1 mg/L	2018	Resolved
Ethylbenzene	MONITORING AND REPORTING	—	0.7 mg/L	2018	Resolved
Styrene	MONITORING AND REPORTING	—	0.1 mg/L	2018	Resolved
Carbon tetrachloride	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
cis-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.07 mg/L	2018	Resolved
DICHLOROMETHANE	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Gross Alpha, Excl. Radon and U	MONITORING AND REPORTING	—	15 pCi/L	2018	Resolved
Combined Uranium	MONITORING AND REPORTING	—	30 ug/L	2018	Resolved
Combined Radium (-226 and -228)	MONITORING AND REPORTING	—	5 pCi/L	2018	Resolved
Radium-228	MONITORING AND REPORTING	—	—	2018	Resolved
Radium-226	MONITORING AND REPORTING	—	—	2018	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2018	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2018	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

49 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 Medford Waterworks

PWSID WI8610125

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

Population served 30

Service connections 1,829

Systems serving this area 1

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Medford tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open. Lead is 2.80 ppb, 19% of the action level.

Does Medford water have PFAS? ▼

PFAS was detected but stayed below the federal limit.

Who supplies water to Medford? ▼

Medford Waterworks (PWSID WI8610125). Groundwater. Drawn from wells — SDWIS source code GW

When was this system last inspected? ▼

It was last inspected on 2023-03-30. No significant deficiencies were recorded.

What Should Medford Residents Do?

Read your annual water report

Your supplier publishes a Consumer Confidence Report each July covering the prior year.

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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