Public water system record

City of Montague

Serves an area of Siskiyou County, CA that includes Montague and Lake Shastina · 1,264 people served

Federal records show 2 health-based violations and 1 monitoring/reporting issue for City of Montague in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

  • CA4710007
  • MONTAGUE
  • CA
  • 1,264 served

System profile

Source water Surface water
ZIP 96064
EPA system ID CA4710007

Verify this system on EPA ECHO →

Health-based violations, last 10 years
2
Resolved
1
Unresolved
1
Any acute record
No
Monitoring issues, last 10 years
1

Key facts

  • EPA lists 3 surface water intakes for City of Montague, all for emergency, seasonal or other part-time use.
  • Most recent formal enforcement: compliance order (no penalty) by California, June 2019.
  • Record on file since 2008, with 7 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 538 unknown out of 538 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
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
350 Oct 17, 2024 Active No
Revised Total Coliform Rule
Treatment technique failure
110 Jun 1, 2019 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
LEAD AND COPPER RULE REVISIONS
RPT
Oct 17, 2024 Active

Full record since 2008

EPA's records for City of Montague go back to 2008. Before October 19, 2016 they list 7 health-based violations (7 resolved) and no monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 4 0
2010 to October 18, 2016 3 0
October 19, 2016 to 2019 1 0
2020s 1 1

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began September 2014, Resolved.

Show all 7 health-based violations before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
Sep 1, 2014 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Jul 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
Jul 1, 2010 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
Oct 1, 2009 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
Jul 1, 2009 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
Oct 1, 2008 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
Apr 1, 2008 Resolved

Enforcement actions

California regulators took 2 formal enforcement actions against City of Montague between 2013 and 2019. The most recent was a compliance order (no penalty) in June 2019.

Date By Action Violations covered
Jun 27, 2019 California Compliance order (no penalty) 1 violation (1 health-based): Revised Total Coliform Rule
Mar 20, 2013 California Compliance order (no penalty) 5 violations (5 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)

What the violations mean

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Revised Total Coliform Rule

1 incident

The 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

EPA lists 3 surface water intakes for City of Montague, all for emergency, seasonal or other part-time use.

Annual water quality report

City of Montague 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 California.