Public water system record
Hidden Lake Yellowstone County W and S D
Serves an area of Yellowstone County, MT that includes Billings · 350 people served
Federal records show no health-based violations and 26 monitoring/reporting issues for Hidden Lake Yellowstone County W and S D in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 26
Key facts
- Hidden Lake Yellowstone County W and S D draws water from 1 well.
- Most recent enforcement action: boil water order by Montana, July 2015.
- Record on file since 1992, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 3 unknown out of 113 service lines.
Check whether Hidden Lake Yellowstone County W and S D 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.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Groundwater Rule
Monitoring and reporting
|
Nov 1, 2023 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Aug 1, 2021 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
Full record since 1992
EPA's records for Hidden Lake Yellowstone County W and S D go back to 1992. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 77 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 71 |
| 2000s | 0 | 3 |
| 2010 to October 18, 2016 | 2 | 3 |
| October 19, 2016 to 2019 | 0 | 2 |
| 2020s | 0 | 24 |
Most recent health-based violation before October 19, 2016: Total Coliform, began July 2015, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2015 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jul 1, 2015 | Resolved |
Enforcement actions
Montana regulators issued 1 boil water order to Hidden Lake Yellowstone County W and S D in 2015. The most recent was a boil water order in July 2015.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 16, 2015 | Montana | Boil water order | 1 violation (1 health-based): Total Coliform |
Where the water comes from
Hidden Lake Yellowstone County W and S D draws water from 1 well.
Annual water quality report
Hidden Lake Yellowstone County W and S D 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 Hidden Lake Yellowstone County W and S D 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