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Public water system record

Stewart

Serves Stewart, McLeod County, MN · 482 people served

Federal records show 5 health-based violations and 2 monitoring/reporting issues for Stewart in the last ten years. The most serious issue in this window was a Total Trihalomethanes (TTHMs) violation that EPA lists as archived, not resolved.

  • MN1430009
  • STEWART
  • MN
  • 482 served

System profile

Source water Groundwater
ZIP 55385
EPA system ID MN1430009

Verify this system on EPA ECHO →

Health-based violations, last 10 years
5
Resolved
1
Unresolved
0
Archived by EPA
4
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • Stewart draws water from 2 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.125 mg/L, federal limit 0.08 mg/L (1.6 times the limit), 2025.
  • Most recent formal enforcement: compliance order (no penalty) by Minnesota, December 2020.
  • Record on file since 2000, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 42 unknown out of 261 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
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.125 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
 220 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1238 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
 220 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1141 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1123 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Jan 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Arsenic
Contaminant limit exceeded
Measured 0.0108 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
 330 Apr 1, 2020 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 1, 2021 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Oct 1, 2021 Resolved

Full record since 2000

EPA's records for Stewart go back to 2000. Before October 19, 2016 they list 2 health-based violations (2 resolved) and no monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 2 0
2020s 5 2

Most recent health-based violation before October 19, 2016: Arsenic, began October 2007, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Arsenic
Contaminant limit exceeded
Measured 0.01075 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
 Oct 15, 2007 Resolved
Total Coliform
Contaminant limit exceeded
 Oct 1, 2000 Resolved

Enforcement actions

Minnesota regulators took 2 formal enforcement actions against Stewart between 2012 and 2020. The most recent was a compliance order (no penalty) in December 2020.

Date By Action Violations covered
Dec 14, 2020 Minnesota Compliance order (no penalty) 1 violation (1 health-based): Arsenic
Jan 10, 2012 Minnesota Compliance order (no penalty) 1 violation (1 health-based): Arsenic

What the violations mean

Total Trihalomethanes (TTHMs)

4 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Arsenic

1 incident

Arsenic exceeded the federal limit

Long-term arsenic exposure is linked to cancer and cardiovascular effects

Where the water comes from

Stewart draws water from 2 wells.

Annual water quality report

Stewart 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 Stewart 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 Minnesota.

Certified drinking water labs by state EPA guidance for private wells