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Public water system record

Grundy County PWSD 1

Serves an area of Grundy County, MO that includes Trenton, Leisure Lake, Edinburg and 4 more places · 3,900 people served

Federal records show 4 health-based violations and 1 monitoring/reporting issue for Grundy County PWSD 1 in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • MO2024237
  • TRENTON
  • MO
  • 3,900 served

System profile

Source water Purchased surface water
ZIP 64683
EPA system ID MO2024237

Verify this system on EPA ECHO →

Health-based violations, last 10 years
4
Resolved
4
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
1

Key facts

  • Grundy County PWSD 1 buys its water from Trenton Municipal Utilities PWS.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 83 µg/L, federal limit 80 µg/L (at or just above the limit), 2019.
  • Record on file since 2014, with 4 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 24 unknown out of 393 service lines.

Check whether Grundy County PWSD 1 serves your address

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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 82 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Jan 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Oct 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 83 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Jul 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Apr 1, 2019 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
LEAD AND COPPER RULE REVISIONS
RPT
 Oct 17, 2024 Resolved

Full record since 2014

EPA's records for Grundy County PWSD 1 go back to 2014. Before October 19, 2016 they list 4 health-based violations (4 resolved) and no monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2010 to October 18, 2016 4 0
October 19, 2016 to 2019 3 0
2020s 1 1

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began January 2015, Resolved.

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 91.1 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Jan 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 108.93 µg/L, federal limit 80 µg/L (1.4 times the limit)
 Oct 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 118 µg/L, federal limit 80 µg/L (1.5 times the limit)
 Jul 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 85.75 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Apr 1, 2014 Resolved

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

Where the water comes from

Grundy County PWSD 1 buys its water from Trenton Municipal Utilities PWS. It lists no wells or intakes of its own. 2 other community water systems buy water from Grundy County PWSD 1.

Buys water from

Community systems that buy water from it

Annual water quality report

Grundy County PWSD 1 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 Missouri.

Certified drinking water labs by state EPA guidance for private wells