Public water system record
Still River Estates Subdivision
Serves an area of Yellowstone County, MT that includes Billings · 188 people served
Federal records show 1 health-based violation and 24 monitoring/reporting issues for Still River Estates Subdivision in the last ten years. The most serious issue in this window was a Nitrate-Nitrite violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 0
- Archived by EPA
- 1
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 24
Key facts
- Still River Estates Subdivision draws water from 4 wells.
- Most recent formal enforcement: compliance order (no penalty) by Montana, June 2023.
- Lead pipe inventory: 0 lead and 0 unknown out of 26 service lines.
Check whether Still River Estates Subdivision serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Styrene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
Enforcement actions
Montana regulators took 1 formal enforcement action against Still River Estates Subdivision in 2023. The most recent was a compliance order (no penalty) in June 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jun 7, 2023 | Montana | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
What the violations mean
Nitrate-Nitrite
1 incidentTest results for Nitrate-Nitrite were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about this violation.
Where the water comes from
Still River Estates Subdivision draws water from 4 wells.
Annual water quality report
Still River Estates Subdivision must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Still River Estates Subdivision for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Montana.
Certified drinking water labs by state EPA guidance for private wells