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Public water system record

City of Monroe

Serves Monroe, Union County, NC · 43,081 people served

Federal records show 1 health-based violation and 4 monitoring/reporting issues for City of Monroe in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.

  • NC0190010
  • MONROE
  • NC
  • 43,081 served

System profile

Source water Surface water
ZIP 28111
EPA system ID NC0190010

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
4

Key facts

  • City of Monroe draws water from 1 surface water intake.
  • Most recent formal enforcement: compliance order (no penalty) by North Carolina, August 2025.
  • Record on file since 1981, with 4 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 6,313 unknown out of 15,135 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
Revised Total Coliform Rule
Contaminant limit exceeded
 110 Aug 1, 2025 Resolved Yes

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Revised Total Coliform Rule
RPT
 Apr 11, 2025 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jul 1, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jul 1, 2024 Resolved
Revised Total Coliform Rule
RPT
 May 11, 2020 Active
Enforcement action in place

Full record since 1981

EPA's records for City of Monroe go back to 1981. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 13 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 2
2000s 4 10
2010 to October 18, 2016 0 1
2020s 1 4

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began January 2003, Resolved.

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.08407 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jan 1, 2003 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.0637 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Jan 1, 2003 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09344 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Oct 1, 2002 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.06728 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Oct 1, 2002 Resolved

Enforcement actions

North Carolina regulators took 6 formal enforcement actions against City of Monroe and issued 1 boil water order between 2009 and 2025. The most recent was a compliance order (no penalty) in August 2025.

Date By Action Violations covered
Aug 20, 2025 North Carolina Compliance order (no penalty) 1 violation (1 health-based): Revised Total Coliform Rule
Aug 20, 2025 North Carolina Boil water order 1 violation (1 health-based): Revised Total Coliform Rule
Aug 14, 2025 North Carolina Compliance order (no penalty) 1 violation: Revised Total Coliform Rule
Sep 20, 2024 North Carolina Compliance order (no penalty) 2 violations: Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
May 29, 2020 North Carolina Compliance order (no penalty) 1 violation: Revised Total Coliform Rule
Oct 15, 2010 North Carolina Compliance order (no penalty) 1 violation: Public Notice
Apr 3, 2009 North Carolina Compliance order with a penalty 1 violation: 2,4-D

What the violations mean

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

City of Monroe draws water from 1 surface water intake. It also buys water from Union County Water System. 1 other public water system has an emergency connection to City of Monroe.

Buys water from

Annual water quality report

City of Monroe 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 North Carolina.

Certified drinking water labs by state EPA guidance for private wells