Public Water Partners

GRATIOT, WI · Lafayette County

GRATIOT WATERWORKS Water System

Consumer Confidence Report status

GRATIOT 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 GRATIOT 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)
WI1330074
System type
Community Water System
Population served
224
Service connections
82
Ownership
local government
Water source
groundwater (wells)

GRATIOT WATERWORKS is one of 1,289 community water systems in Wisconsin in the 500 or fewer people size category, serving 224 people from groundwater.

As of August 1, 2026, its federal record holds 29 entries between 1992 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.

Of the 29, 28 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 synthetic organic chemicals, the Total Coliform Rules, and inorganic chemicals.

Violation history

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 2023 – December 31, 2023

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2023 – December 31, 2023

    Resolved

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2023 – December 31, 2023

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    July 1, 1994 – July 14, 1994

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Endrin

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Simazine

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Picloram

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Aldicarb sulfoxide

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Aldicarb sulfone

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Aldicarb

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    LASSO

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Total Polychlorinated Biphenyls (PCB)

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Repeat Minor (TCR)

    —

    Coliform (TCR)

    September 1, 1992 – September 30, 1992

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    February 1, 1992 – February 29, 1992

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is GRATIOT WATERWORKS required to publish a Consumer Confidence Report?

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

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

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

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

GRATIOT VILLAGE CLERK - CHRIS MCGLYNN

Phone not on record

GRATIOT, WI 53541-0189