Public water system record
Milford Colony Inc
On record as serving Wolf Creek, Lewis and Clark County, MT · Serves 67 people
Federal records show 5 health-based violations and 86 monitoring/reporting issues for Milford Colony Inc in the last ten years. The most serious issue in this window was a Arsenic violation that EPA lists as archived, not resolved.
System profile
Source water
Groundwater
ZIP
59648
EPA system ID
MT0001646
- Health-based violations, last 10 years
- 5
- Resolved
- 0
- Unresolved
- 0
- Archived by EPA
- 5
- Any acute record
- No
- Monitoring issues, last 10 years
- 86
Key facts
- Milford Colony Inc draws water from 1 well.
- Highest measured level in the last 10 years: Arsenic, 0.0465 mg/L, federal limit 0.01 mg/L (4.7 times the limit), 2023.
- Most recent formal enforcement: compliance order with a penalty by Montana, April 2012.
- Record on file since 1992, with 11 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 11 service lines.
Check whether Milford Colony Inc 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 |
|---|---|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.039 mg/L, federal limit 0.01 mg/L (3.9 times the limit)
|
330 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.032 mg/L, federal limit 0.01 mg/L (3.2 times the limit)
|
330 | Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.024 mg/L, federal limit 0.01 mg/L (2.4 times the limit)
|
330 | Oct 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.024 mg/L, federal limit 0.01 mg/L (2.4 times the limit)
|
330 | Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0465 mg/L, federal limit 0.01 mg/L (4.7 times the limit)
|
330 | Jul 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
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, 2024 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Sep 1, 2023 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Aug 1, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Mar 1, 2023 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Feb 1, 2023 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2022 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Dec 1, 2021 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2021 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jun 1, 2021 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
May 1, 2021 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Feb 1, 2021 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Dec 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2020 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2020 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Sep 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jun 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
May 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Mar 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Feb 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2019 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Aug 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jun 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
May 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Mar 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Feb 1, 2019 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Dec 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Nov 1, 2018 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Aug 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jun 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Mar 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Dec 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Nov 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Sep 1, 2017 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Aug 31, 2017 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Aug 31, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Aug 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jun 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
May 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2016 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Apr 1, 2015 | Resolved |
Full record since 1992
EPA's records for Milford Colony Inc go back to 1992. Before October 19, 2016 they list 11 health-based violations (8 resolved, 3 archived by EPA without a recorded fix) and 112 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 3 |
| 2000s | 3 | 63 |
| 2010 to October 18, 2016 | 7 | 46 |
| October 19, 2016 to 2019 | 0 | 45 |
| 2020s | 5 | 38 |
Most recent health-based violation before October 19, 2016: Arsenic, began October 2012, Resolved.
Show all 11 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.047 mg/L, federal limit 0.01 mg/L (4.7 times the limit)
|
Oct 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.035 mg/L, federal limit 0.01 mg/L (3.5 times the limit)
|
Jul 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.045 mg/L, federal limit 0.01 mg/L (4.5 times the limit)
|
Apr 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.043 mg/L, federal limit 0.01 mg/L (4.3 times the limit)
|
Jan 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.023 mg/L, federal limit 0.01 mg/L (2.3 times the limit)
|
Oct 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.043 mg/L, federal limit 0.01 mg/L (4.3 times the limit)
|
Jul 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.019 mg/L, federal limit 0.01 mg/L (1.9 times the limit)
|
Jan 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.026 mg/L, federal limit 0.01 mg/L (2.6 times the limit)
|
Jul 1, 2009 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Apr 1, 2009 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jan 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1999 | Resolved |
Enforcement actions
Montana regulators took 4 formal enforcement actions against Milford Colony Inc between 2008 and 2012. The most recent was a compliance order with a penalty in April 2012.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 23, 2012 | Montana | Compliance order with a penalty | 13 violations (8 health-based): Arsenic, Lead and Copper Rule, Consumer Confidence Rule |
| Apr 2, 2010 | Montana | Administrative penalty | 4 violations (4 health-based): Arsenic |
| Nov 20, 2009 | Montana | Compliance order (no penalty) | 9 violations (9 health-based): Arsenic |
| Dec 5, 2008 | Montana | Compliance order with a penalty | 1 violation: Lead and Copper Rule |
What the violations mean
Arsenic
5 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
Where the water comes from
Milford Colony Inc draws water from 1 well.
Annual water quality report
Milford Colony Inc 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 Milford Colony Inc 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