Public water system record

Suamico Waterworks

Serves Suamico, Brown County, WI · 4,697 people served

Federal records show 1 health-based violation and no monitoring/reporting issues for Suamico Waterworks in the last ten years. The most serious issue in this window was a resolved Combined Radium (-226 and -228) violation.

  • WI4051031
  • SUAMICO
  • WI
  • 4,697 served

System profile

Source water Groundwater
ZIP 54313
EPA system ID WI4051031

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Suamico Waterworks draws water from 3 wells (1 of them for emergency, seasonal or other part-time use).
  • Highest measured level in the last 10 years: Combined Radium (-226 and -228), 5.71 pCi/L, federal limit 5 pCi/L (1.1 times the limit), 2017.
  • Record on file since 1993, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 2,068 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
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.71 pCi/L, federal limit 5 pCi/L (1.1 times the limit)
340 Jul 1, 2017 Resolved No

Full record since 1993

EPA's records for Suamico Waterworks go back to 1993. Before October 19, 2016 they list no health-based violations and 10 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 6
2000s 0 1
2010 to October 18, 2016 0 3
October 19, 2016 to 2019 1 0

What the violations mean

Combined Radium (-226 and -228)

1 incident

Test results for Combined Radium (-226 and -228) were above the federal limit (a maximum contaminant level violation).

The utility had to notify customers about this violation.

Where the water comes from

Suamico Waterworks draws water from 3 wells (1 of them for emergency, seasonal or other part-time use).

Annual water quality report

Suamico 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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.