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Public water system record

Calhoun PWS

Serves Calhoun, Henry County, MO · 324 people served

Federal records show no health-based violations and 1 monitoring/reporting issue for Calhoun PWS in the last ten years.

  • MO1010123
  • CALHOUN
  • MO
  • 324 served

System profile

Source water Purchased surface water
ZIP 65323
EPA system ID MO1010123

Verify this system on EPA ECHO →

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

Key facts

  • Calhoun PWS buys its water from Henry County PWSD 3.
  • Record on file since 1999, with 5 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 232 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.

None since October 2016.

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Revised Total Coliform Rule
Monitoring violation
 Jun 1, 2019 Resolved

Full record since 1999

EPA's records for Calhoun PWS go back to 1999. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 3 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
2000s 1 2
2010 to October 18, 2016 4 0
October 19, 2016 to 2019 0 1

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

Show all 5 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 84 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Jul 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Apr 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 91 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Jan 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Oct 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
 Sep 1, 2009 Resolved

Where the water comes from

Calhoun PWS buys its water from Henry County PWSD 3. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Calhoun PWS 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 Calhoun PWS 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 Missouri.

Certified drinking water labs by state EPA guidance for private wells