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Public water system record

Dixon (Old Agency)

Serves Old Agency, Sanders County, MT · 72 people served

Federal records show 3 health-based violations and 4 monitoring/reporting issues for Dixon (Old Agency) in the last ten years. The most serious issue in this window was a resolved Arsenic violation.

  • 083090023
  • PABLO
  • MT
  • 72 served

System profile

Source water Groundwater
ZIP 59855
EPA system ID 083090023

Verify this system on EPA ECHO →

Health-based violations, last 10 years
3
Resolved
3
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
4

Key facts

  • Dixon (Old Agency) draws water from 1 well.
  • Highest measured level in the last 10 years: Arsenic, 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit), 2017.
  • Record on file since 1976, with 8 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 26 unknown out of 27 service lines.

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Health-based violations

Since October 2016

Violation 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 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
 330 Jan 1, 2018 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
 330 Oct 1, 2017 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
 330 Jul 1, 2017 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Chlorine
Monitoring and reporting
 Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Di(2-ethylhexyl) phthalate
Monitoring and reporting
 Jul 1, 2023 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jan 1, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jan 1, 2018 Resolved

Full record since 1976

EPA's records for Dixon (Old Agency) go back to 1976. Before October 19, 2016 they list 8 health-based violations (4 resolved, 4 archived by EPA without a recorded fix) and 11 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 2
1990s 1 8
2000s 5 1
2010 to October 18, 2016 2 0
October 19, 2016 to 2019 3 2
2020s 0 2

Most recent health-based violation before October 19, 2016: Arsenic, began April 2013, Resolved.

Show all 8 health-based violations before October 19, 2016
Contaminant Start date Status
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
 Apr 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
 Jan 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 15 µg/L, federal limit 10 µg/L (1.5 times the limit)
 Jan 1, 2008 Resolved
Arsenic
Contaminant limit exceeded
Measured 13 µg/L, federal limit 10 µg/L (1.3 times the limit)
 Jan 1, 2007 Resolved
Total Coliform
Contaminant limit exceeded
 Dec 1, 2001 Archived
Total Coliform
Contaminant limit exceeded
 Nov 1, 2001 Archived
Total Coliform
Contaminant limit exceeded
 Sep 1, 2001 Archived
Total Coliform
Contaminant limit exceeded
 Oct 1, 1999 Archived

What the violations mean

Arsenic

3 incidents

Arsenic exceeded the federal limit

Long-term arsenic exposure is linked to cancer and cardiovascular effects

Where the water comes from

Dixon (Old Agency) draws water from 1 well.

Annual water quality report

Dixon (Old Agency) 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 Dixon (Old Agency) 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 EPA Region 8.

Certified drinking water labs by state EPA guidance for private wells