HARRISONVILLE, MO · Cass County
CASS COUNTY PWSD 9 Water System
Consumer Confidence Report status
CASS COUNTY PWSD 9 must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for CASS COUNTY PWSD 9.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Missouri’s official records. Always confirm current status with Missouri before making decisions based on this information.
System facts
- System ID (PWSID)
- MO1024118
- System type
- Community Water System
- Population served
- 6,063
- Service connections
- 2,461
- Ownership
- local government
- Water source
- groundwater (wells)
CASS COUNTY PWSD 9 is one of 140 community water systems in Missouri in the 3,301 to 10,000 people size category, serving 6,063 people from groundwater.
As of August 1, 2026, its federal record holds 1 entry in 2010, all of which EPA lists as closed. Nothing has been added since 2010.
None of the 1 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Total Coliform Rules.
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 2010 – September 30, 2010
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| September 1, 2010 – September 30, 2010 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- August 12, 2011State Compliance achieved2 linked violations
- November 1, 2010State Public Notification received2 linked violations
- September 10, 2010State Violation/Reminder Notice1 linked violation
Common questions
Is CASS COUNTY PWSD 9 required to publish a Consumer Confidence Report?
- Yes. CASS COUNTY PWSD 9 is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is CASS COUNTY PWSD 9’s next Consumer Confidence Report due?
- CASS COUNTY PWSD 9’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CASS COUNTY PWSD 9 have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CASS COUNTY PWSD 9.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
MC GEE, RICK
Phone not on record
HARRISONVILLE, MO 64701-0000