Public water system record
Hinsdale Water Department
Serves Hinsdale, Valley County, MT · 250 people served
Federal records show 2 health-based violations and 8 monitoring/reporting issues for Hinsdale Water Department in the last ten years, including an unresolved Revised Total Coliform Rule violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 1
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 8
Key facts
- Hinsdale Water Department draws water from 1 well.
- Most recent formal enforcement: compliance order with a penalty by Montana, September 2008.
- Record on file since 1994, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 157 unknown out of 168 service lines.
Check whether Hinsdale Water Department 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 |
|---|---|---|---|---|
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Nov 11, 2025 | Active | No |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Dec 30, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2026 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2021 | Resolved |
|
E. coli
Monitoring and reporting
|
Aug 20, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
Full record since 1994
EPA's records for Hinsdale Water Department go back to 1994. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 24 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 5 |
| 2000s | 2 | 12 |
| 2010 to October 18, 2016 | 2 | 7 |
| October 19, 2016 to 2019 | 1 | 4 |
| 2020s | 1 | 4 |
Most recent health-based violation before October 19, 2016: Total Coliform, began October 2015, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2006 | Resolved |
Enforcement actions
Montana regulators took 1 formal enforcement action against Hinsdale Water Department in 2008. The most recent was a compliance order with a penalty in September 2008.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 2, 2008 | Montana | Compliance order with a penalty | 6 violations (2 health-based): Consumer Confidence Rule, Haloacetic Acids (HAA5), Total Coliform, Total Trihalomethanes (TTHMs) |
What the violations mean
Revised Total Coliform Rule
2 incidentsThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Where the water comes from
Hinsdale Water Department draws water from 1 well.
Annual water quality report
Hinsdale Water Department 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 Hinsdale Water Department 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