Public Water Partners

Mercer, WI · Iron County

MERCER SANITARY DISTRICT Water System

Consumer Confidence Report status

MERCER SANITARY DISTRICT must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for MERCER SANITARY DISTRICT.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Wisconsin’s official records. Always confirm current status with Wisconsin before making decisions based on this information.

System facts

System ID (PWSID)
WI8260120
System type
Community Water System
Population served
760
Service connections
384
Ownership
local government
Water source
groundwater (wells)

MERCER SANITARY DISTRICT is one of 333 community water systems in Wisconsin in the 501 to 3,300 people size category, serving 760 people from groundwater.

As of August 1, 2026, its federal record holds 18 entries in 1993, all of which EPA lists as closed. Nothing has been added since 1993.

All 18 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals.

Violation history

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 1993 – December 31, 1993

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is MERCER SANITARY DISTRICT required to publish a Consumer Confidence Report?

Yes. MERCER SANITARY DISTRICT is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is MERCER SANITARY DISTRICT’s next Consumer Confidence Report due?

MERCER SANITARY DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does MERCER SANITARY DISTRICT have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for MERCER SANITARY DISTRICT.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

MERCER SANITARY DISTRICT

Phone not on record

Mercer, WI 54547-0660