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Public water system record

City of Cassoday

Serves Cassoday, Butler County, KS · 111 people served

Federal records show 8 health-based violations and 9 monitoring/reporting issues for City of Cassoday in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.

  • KS2001501
  • CASSODAY
  • KS
  • 111 served

System profile

Source water Purchased surface water
ZIP 66842
EPA system ID KS2001501

Verify this system on EPA ECHO →

Health-based violations, last 10 years
8
Resolved
8
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
9

Key facts

  • City of Cassoday buys its water from Butler Co RWD 3.
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.118 mg/L, federal limit 0.06 mg/L (2 times the limit), 2019.
  • Record on file since 1992, with 3 health-based violations before October 19, 2016.

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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
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.111 mg/L, federal limit 0.06 mg/L (1.9 times the limit)
 220 Apr 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Apr 1, 2020 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.116 mg/L, federal limit 0.06 mg/L (1.9 times the limit)
 220 Jan 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Jan 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Oct 1, 2019 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.118 mg/L, federal limit 0.06 mg/L (2 times the limit)
 220 Oct 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Jul 1, 2019 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.06 mg/L (1.6 times the limit)
 220 Jul 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
Chlorine
Monitoring and reporting
 Jun 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
RPT
 Jun 1, 2025 Active
Lead and Copper Rule
Monitoring and reporting
 Oct 31, 2021 Resolved
Public Notice
OTHER
 Jun 30, 2020 Resolved
Public Notice
OTHER
 Jun 30, 2020 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Sep 1, 2019 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Sep 1, 2019 Resolved
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
 Jul 1, 2018 Resolved

Full record since 1992

EPA's records for City of Cassoday go back to 1992. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 13 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 10
2000s 3 3
October 19, 2016 to 2019 4 4
2020s 4 5

Most recent health-based violation before October 19, 2016: Total Coliform, began July 2002, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Jul 1, 2002 Resolved
Total Coliform
Contaminant limit exceeded
 Oct 1, 2000 Resolved
Total Coliform (acute)
Contaminant limit exceeded
 Oct 1, 2000 Resolved

What the violations mean

Haloacetic Acids (HAA5)

4 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

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

City of Cassoday buys its water from Butler Co RWD 3. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

City of Cassoday 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 City of Cassoday 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 Kansas.

Certified drinking water labs by state EPA guidance for private wells