Public water system record

Mount Hermon Water District

On record as serving Washington Parish, LA · Serves 1,107 people

Federal records show 4 health-based violations and 3 monitoring/reporting issues for Mount Hermon Water District in the last ten years, including an unresolved Groundwater Rule violation.

  • LA1117021
  • MOUNT HERMON
  • LA
  • 1,107 served

System profile

Source water Groundwater
ZIP 70405
EPA system ID LA1117021

Verify this system on EPA ECHO →

Health-based violations, last 10 years
4
Resolved
1
Unresolved
3
Any acute record
No
Monitoring issues, last 10 years
3

Key facts

  • Mount Hermon Water District draws water from 2 wells.
  • Record on file since 2008, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 392 unknown out of 392 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
Groundwater Rule
Treatment technique failure
140 Jun 24, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Jun 24, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Jun 24, 2025 Active No
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
350 Oct 17, 2024 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
Monitoring and reporting
Oct 1, 2025 Active
Public Notice
OTHER
Aug 6, 2025 Active
Consumer Confidence Rule
OTHER
Jul 1, 2025 Active

Full record since 2008

EPA's records for Mount Hermon Water District go back to 2008. Before October 19, 2016 they list 2 health-based violations (1 resolved, 1 archived by EPA without a recorded fix) and 5 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 0 1
2010 to October 18, 2016 2 4
2020s 4 3

Most recent health-based violation before October 19, 2016: Total Coliform, began May 2012, Archived.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
May 1, 2012 Archived
Total Coliform
Contaminant limit exceeded
Aug 1, 2011 Resolved

What the violations mean

Groundwater Rule

3 incidents

The system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

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.

Where the water comes from

Mount Hermon Water District draws water from 2 wells.

Annual water quality report

Mount Hermon Water District 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 Louisiana.