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Public water system record

City of Toledo

Serves Toledo, Ottawa Hills and Holland, Lucas County, OH · 360,000 people served

Federal records show 1 health-based violation and 3 monitoring/reporting issues for City of Toledo in the last ten years. The most serious issue in this window was a resolved Interim Enhanced Surface Water Treatment Rule violation.

  • OH4801411
  • TOLEDO
  • OH
  • 360,000 served

System profile

Source water Surface water
ZIP 43604
EPA system ID OH4801411

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
3

Key facts

  • City of Toledo draws water from 1 surface water intake.
  • Most recent formal enforcement: compliance order (no penalty) by EPA, April 2009.
  • Record on file since 2007, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 1,944 lead and 38,053 unknown out of 114,828 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
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Mar 1, 2023 Resolved Yes

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
Consumer Confidence Rule
OTHER
 Jan 25, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jan 1, 2022 Resolved

Full record since 2007

EPA's records for City of Toledo go back to 2007. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 3 monitoring or reporting violations.

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

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began March 2015, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
 Mar 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Apr 1, 2014 Resolved

Enforcement actions

EPA took 1 formal enforcement action against City of Toledo in 2009. The most recent was a compliance order (no penalty) in April 2009.

Date By Action Violations covered
Apr 23, 2009 EPA Compliance order (no penalty) 3 violations: Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), Stage 2 Disinfection Byproducts Rule

What the violations mean

Interim Enhanced Surface Water Treatment Rule

1 incident

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

Where the water comes from

City of Toledo draws water from 1 surface water intake. 6 other community water systems and 1 smaller public system such as schools, businesses or campgrounds buy water from City of Toledo. 3 other public water systems have emergency connections to City of Toledo.

Community systems that buy water from it

Annual water quality report

City of Toledo 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