Public water system record

Wilton Waterworks

Serves Wilton, Monroe County, WI · 490 people served

Federal records show 2 health-based violations and no monitoring/reporting issues for Wilton Waterworks in the last ten years. The most serious issue in this window was a resolved Stage 1 Disinfection Byproducts Rule violation.

  • WI6420306
  • WILTON
  • WI
  • 490 served

System profile

Source water Groundwater
ZIP 54670
EPA system ID WI6420306

Verify this system on EPA ECHO →

Health-based violations, last 10 years
2
Resolved
2
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Wilton Waterworks draws water from 2 wells.
  • Most recent enforcement action: boil water order by Wisconsin, February 2008.
  • Record on file since 1993, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 218 unknown out of 259 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
210 Jul 11, 2023 Resolved No
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
210 Nov 2, 2022 Resolved No

Full record since 1993

EPA's records for Wilton Waterworks go back to 1993. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 4 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 2 1
2000s 1 3
2020s 2 0

Most recent health-based violation before October 19, 2016: Total Coliform (acute), began February 2008, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform (acute)
Contaminant limit exceeded
Feb 1, 2008 Resolved
Total Coliform
Contaminant limit exceeded
Feb 1, 1995 Resolved
Total Coliform
Contaminant limit exceeded
Aug 1, 1993 Resolved

Enforcement actions

Wisconsin regulators issued 1 boil water order to Wilton Waterworks in 2008. The most recent was a boil water order in February 2008.

Date By Action Violations covered
Feb 27, 2008 Wisconsin Boil water order 1 violation (1 health-based): Total Coliform

What the violations mean

Stage 1 Disinfection Byproducts Rule

2 incidents

The system did not meet a treatment requirement of the Stage 1 Disinfectants and Disinfection Byproducts Rule

Byproducts form when disinfectants react with natural material in water. Long-term exposure above federal limits may increase cancer risk

Where the water comes from

Wilton Waterworks draws water from 2 wells.

Annual water quality report

Wilton Waterworks must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Wilton Waterworks for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Wisconsin.