KNOB NOSTER, MO · Johnson County
KNOB NOSTER PWS Water System
Consumer Confidence Report status
KNOB NOSTER PWS 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 KNOB NOSTER PWS.
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)
- MO1010432
- System type
- Community Water System
- Population served
- 2,863
- Service connections
- 1,347
- Ownership
- local government
- Water source
- groundwater (wells)
KNOB NOSTER PWS is one of 489 community water systems in Missouri in the 501 to 3,300 people size category, serving 2,863 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 1994 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
All 3 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules, inorganic chemicals, and volatile organic chemicals.
Violation history
Monitoring, Routine (RTCR)
—Revised Total Coliform Rule
March 1, 2023 – March 31, 2023
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Styrene
January 1, 1994 – December 31, 1994
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| March 1, 2023 – March 31, 2023 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Styrene | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is KNOB NOSTER PWS required to publish a Consumer Confidence Report?
- Yes. KNOB NOSTER PWS 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 KNOB NOSTER PWS’s next Consumer Confidence Report due?
- KNOB NOSTER PWS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does KNOB NOSTER PWS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for KNOB NOSTER PWS.
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
JACKSON, CAMERON
660-563-2595
KNOB NOSTER, MO 65336-0000