BILLINGS, MT · Yellowstone County
BLUE GRASS WATER USERS ASSOCIATION Water System
Consumer Confidence Report status
BLUE GRASS WATER USERS ASSOCIATION 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 BLUE GRASS WATER USERS ASSOCIATION.
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)
- MT0004093
- System type
- Community Water System
- Population served
- 60
- Service connections
- 18
- Ownership
- privately owned
- Water source
- groundwater (wells)
BLUE GRASS WATER USERS ASSOCIATION is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 60 people from groundwater.
As of August 1, 2026, its federal record holds 19 entries between 2014 and 2021, all of which EPA lists as closed. Nothing has been added since 2021.
Of the 19, 18 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 volatile organic chemicals, the Lead and Copper Rule, and the Consumer Confidence Rule.
Violation history
Lead Consumer Notice
—Lead and Copper Rule
December 30, 2021 – March 10, 2022
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2021 – July 30, 2021
ResolvedMonitoring, Regular
—2,4-D
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—Styrene
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2015 – September 22, 2015
ResolvedMonitoring, Regular
—Barium
January 1, 2014 – October 22, 2015
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2014 – March 31, 2014
ResolvedMonitoring, Regular
—Benzene
January 1, 2014 – March 31, 2014
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2014 – March 31, 2014
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| December 30, 2021 – March 10, 2022 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| July 1, 2021 – July 30, 2021 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2015 – September 22, 2015 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2014 – October 22, 2015 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2014 – March 31, 2014 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2014 – March 31, 2014 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2014 – March 31, 2014 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is BLUE GRASS WATER USERS ASSOCIATION required to publish a Consumer Confidence Report?
- Yes. BLUE GRASS WATER USERS ASSOCIATION 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 BLUE GRASS WATER USERS ASSOCIATION’s next Consumer Confidence Report due?
- BLUE GRASS WATER USERS ASSOCIATION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does BLUE GRASS WATER USERS ASSOCIATION have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for BLUE GRASS WATER USERS ASSOCIATION.
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
BRANDON, JACK
406-672-5445
BILLINGS, MT 59106