Public water system record
Big Sky County Water and Sewer Dist 363
Serves Big Sky, Madison County and Gallatin County, MT · 4,132 people served
Federal records show no health-based violations and 6 monitoring/reporting issues for Big Sky County Water and Sewer Dist 363 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
- 6
Key facts
- Big Sky County Water and Sewer Dist 363 draws water from 14 wells.
- Record on file since 1992, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 794 unknown out of 3,558 service lines.
Check whether Big Sky County Water and Sewer Dist 363 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 |
|---|---|---|
|
Nitrate-Nitrite
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Asbestos
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2008 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2008 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2008 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Full record since 1992
EPA's records for Big Sky County Water and Sewer Dist 363 go back to 1992. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 25 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 10 |
| 2000s | 3 | 11 |
| 2010 to October 18, 2016 | 1 | 4 |
| 2020s | 0 | 3 |
Most recent health-based violation before October 19, 2016: Total Coliform, began January 2012, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 1992 | Resolved |
Where the water comes from
Big Sky County Water and Sewer Dist 363 draws water from 14 wells. 1 other community water system buys water from Big Sky County Water and Sewer Dist 363.
Community systems that buy water from it
- Andesite Ridge Water System Big Sky, MT
Annual water quality report
Big Sky County Water and Sewer Dist 363 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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