Public water system record
Town of Darby
Serves Darby, Ravalli County, MT · 850 people served
Federal records show 1 health-based violation and 4 monitoring/reporting issues for Town of Darby in the last ten years. The most serious issue in this window was a resolved Lead and Copper Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Town of Darby draws water from 3 wells.
- Most recent formal enforcement: compliance order (no penalty) by EPA, March 2007.
- Record on file since 1992, with 12 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 2 unknown out of 422 service lines.
Check whether Town of Darby 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 |
|---|---|---|---|---|
|
Lead and Copper Rule
Treatment technique failure
|
350 | Aug 6, 2024 | 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
|
May 1, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2004 |
Active
Enforcement action in place
|
Full record since 1992
EPA's records for Town of Darby go back to 1992. Before October 19, 2016 they list 12 health-based violations (12 resolved) and 167 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 4 | 124 |
| 2000s | 8 | 41 |
| 2010 to October 18, 2016 | 0 | 2 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 1 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began September 2005, Resolved.
Show all 12 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2005 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Sep 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2005 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1999 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1996 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Aug 1, 1992 | Resolved |
Enforcement actions
Montana regulators and EPA took 1 formal enforcement action against Town of Darby and issued 2 boil water orders between 1999 and 2007. The most recent was a compliance order (no penalty) in March 2007.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 7, 2007 | EPA | Compliance order (no penalty) | 19 violations (4 health-based): Total Coliform, Lead and Copper Rule |
| Sep 16, 2005 | Montana | Boil water order | 1 violation (1 health-based): Total Coliform |
| Jul 31, 1999 | Montana | Boil water order | 1 violation (1 health-based): Total Coliform |
What the violations mean
Lead and Copper Rule
1 incidentThe system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Town of Darby draws water from 3 wells.
Annual water quality report
Town of Darby 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