DIAMOND, MO · Newton County
DIAMOND PWS Water System
Consumer Confidence Report status
DIAMOND 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 1 item for DIAMOND PWS that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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)
- MO5010217
- System type
- Community Water System
- Population served
- 926
- Service connections
- 543
- Ownership
- local government
- Water source
- groundwater (wells)
DIAMOND PWS is one of 489 community water systems in Missouri in the 501 to 3,300 people size category, serving 926 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 2012 and 2025, of which 1 remains open; none are health-based.
Of the 3, 2 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 Lead and Copper Rule, the Total Coliform Rules, and the Consumer Confidence Rule.
Violation history
Notification, Known or Potential LSL
—LEAD AND COPPER RULE REVISIONS
July 2, 2025
UnaddressedMonitoring, Routine Major (TCR)
—Coliform (TCR)
January 1, 2016 – January 31, 2016
ResolvedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
July 1, 2012 – October 25, 2013
Resolved
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 2, 2025 | Notification, Known or Potential LSL | LEAD AND COPPER RULE REVISIONS | — | Unaddressed |
| January 1, 2016 – January 31, 2016 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 2012 – October 25, 2013 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is DIAMOND PWS required to publish a Consumer Confidence Report?
- Yes. DIAMOND 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 DIAMOND PWS’s next Consumer Confidence Report due?
- DIAMOND PWS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DIAMOND PWS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for DIAMOND PWS that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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
CALLIS, RON
417-385-2910
DIAMOND, MO 64840-0000