SUNBURST, MT · Toole County
RIMROCK COLONY Water System
Consumer Confidence Report status
RIMROCK COLONY 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 RIMROCK COLONY.
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 Montana’s official records. Always confirm current status with Montana before making decisions based on this information.
System facts
- System ID (PWSID)
- MT0001783
- System type
- Community Water System
- Population served
- 124
- Service connections
- 8
- Ownership
- privately owned
- Water source
- groundwater (wells)
RIMROCK COLONY is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 124 people from groundwater.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
- October 30, 2023State Public Notification requested5 linked violations
Common questions
Is RIMROCK COLONY required to publish a Consumer Confidence Report?
- Yes. RIMROCK COLONY 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 RIMROCK COLONY’s next Consumer Confidence Report due?
- RIMROCK COLONY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does RIMROCK COLONY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for RIMROCK COLONY.
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
WURZ, STEVE J
406-952-6746
SUNBURST, MT 59482