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Public water system record

Mansfield City

Serves Mansfield, Richland County, OH · 51,000 people served

Federal records show 7 health-based violations and 5 monitoring/reporting issues for Mansfield City in the last ten years. The most serious issue in this window was a Long Term 2 Enhanced Surface Water Treatment Rule violation that EPA lists as archived, not resolved.

  • OH7002914
  • MANSFIELD
  • OH
  • 51,000 served

System profile

Source water Surface water
ZIP 44902
EPA system ID OH7002914

Verify this system on EPA ECHO →

Health-based violations, last 10 years
7
Resolved
6
Unresolved
0
Archived by EPA
1
Any acute record
Yes
Monitoring issues, last 10 years
5

Key facts

  • Mansfield City draws water from 9 wells, 1 surface water intake and 1 reservoir.
  • Record on file since 2000, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 21,348 unknown out of 22,963 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
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 May 1, 2025 Resolved No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Jan 1, 2025 Resolved Yes
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
 350 Oct 17, 2024 Resolved No
Lead and Copper Rule
Treatment technique failure
 350 Jan 1, 2023 Resolved No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Dec 1, 2019 Resolved Yes
Lead and Copper Rule
Treatment technique failure
 350 Jan 1, 2018 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
 Jul 2, 2025 Active
LEAD AND COPPER RULE REVISIONS
RPT
 Oct 17, 2024 Resolved
Public Notice
OTHER
 Aug 21, 2023 Active
Consumer Confidence Rule
OTHER
 Dec 30, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
 Apr 1, 2019 Resolved

Full record since 2000

EPA's records for Mansfield City go back to 2000. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 11 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 1 7
2010 to October 18, 2016 0 4
October 19, 2016 to 2019 2 2
2020s 5 3

Most recent health-based violation before October 19, 2016: Total Coliform (acute), began April 2005, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Total Coliform (acute)
Contaminant limit exceeded
 Apr 1, 2005 Resolved

What the violations mean

Long Term 2 Enhanced Surface Water Treatment Rule

2 incidents

The system failed required surface water treatment or filtration standards

Untreated or inadequately treated surface water can contain bacteria and viruses

Interim Enhanced Surface Water Treatment Rule

2 incidents

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Lead and Copper Rule

2 incidents

The system did not complete a treatment step or action that the Lead and Copper 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

Mansfield City draws water from 9 wells, 1 surface water intake and 1 reservoir.

Annual water quality report

Mansfield City 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 Ohio.

Certified drinking water labs by state EPA guidance for private wells