Public Water Partners

PLATTEVILLE, WI · Grant County

PLATTEVILLE WATERWORKS Water System

Consumer Confidence Report status

PLATTEVILLE WATERWORKS 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 PLATTEVILLE WATERWORKS.

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)
WI1220115
System type
Community Water System
Population served
12,268
Service connections
3,601
Ownership
local government
Water source
groundwater (wells)

PLATTEVILLE WATERWORKS is one of 87 community water systems in Wisconsin in the 10,001 to 100,000 people size category, serving 12,268 people from groundwater.

As of August 1, 2026, its federal record holds 2 entries in 2019, all of which EPA lists as closed. Nothing has been added since 2019.

All 2 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 the Radionuclides and Revised Rad Rule.

Violation history

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    July 1, 2019 – September 30, 2019

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    July 1, 2019 – September 30, 2019

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is PLATTEVILLE WATERWORKS required to publish a Consumer Confidence Report?

Yes. PLATTEVILLE WATERWORKS 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 PLATTEVILLE WATERWORKS’s next Consumer Confidence Report due?

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

Does PLATTEVILLE WATERWORKS have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for PLATTEVILLE WATERWORKS.

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

CROFOOT, HOWARD - DIR OF PUBLIC WORKS

Phone not on record

PLATTEVILLE, WI 53818-0780