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Public water system record

Monroe Water System

Serves Monroe, Ouachita Parish, LA · 57,000 people served

Federal records show 3 health-based violations and no monitoring/reporting issues for Monroe Water System in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.

  • LA1073031
  • MONROE
  • LA
  • 57,000 served

System profile

Source water Surface water
ZIP 71210
EPA system ID LA1073031

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
0

Key facts

  • Monroe Water System draws water from 2 surface water intakes.
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit), 2019.
  • Record on file since 1992, with 13 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 18,676 unknown out of 18,684 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 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 220 Jul 1, 2019 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Apr 1, 2019 Resolved No

Full record since 1992

EPA's records for Monroe Water System go back to 1992. Before October 19, 2016 they list 13 health-based violations (9 resolved, 4 archived by EPA without a recorded fix) and 2 monitoring or reporting violations.

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

Most recent health-based violation before October 19, 2016: Total Coliform, began August 2014, Resolved.

Show all 13 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Aug 1, 2014 Resolved
CARBON, TOTAL
Treatment technique failure
 Jan 1, 2011 Archived
CARBON, TOTAL
Treatment technique failure
 Oct 1, 2010 Resolved
CARBON, TOTAL
Treatment technique failure
 Jul 1, 2010 Resolved
CARBON, TOTAL
Treatment technique failure
 Apr 1, 2010 Resolved
Total Coliform
Contaminant limit exceeded
 Nov 1, 2008 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
 Jul 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
 Apr 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
 Jan 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
 Sep 1, 1996 Archived
Total Coliform
Contaminant limit exceeded
 Oct 1, 1994 Archived
Total Coliform (acute)
Contaminant limit exceeded
 Aug 1, 1992 Archived

What the violations mean

Haloacetic Acids (HAA5)

2 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

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

Monroe Water System draws water from 2 surface water intakes. 2 other community water systems buy water from Monroe Water System. 2 other public water systems have emergency connections to Monroe Water System.

Community systems that buy water from it

Annual water quality report

Monroe Water System 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

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.

Certified drinking water labs by state EPA guidance for private wells