City of Toledo
EPA ID: OH4801411 · 360,000 people served · 25 ZIP codes
ZipCheckup's reading of EPA SDWIS for City of Toledo (OH4801411): 1 past health-based violation, since resolved. The five-year EPA compliance file for City of Toledo contains 4 violations, each documented and subsequently closed - the utility now operates in full compliance and continues to supply approximately 360,000 residents with water meeting current federal standards, including both health-based and monitoring requirements.
Data: EPA SDWIS
Service Area Map
Coverage area for City of Toledo Source: EPA SDWIS service area boundaries.
Service area boundary - Grade B
Service Area Demographics
The City of Toledo serves a community with a median household income of $63,425 and an estimated 440,244 residents across its service area. Approximately 76% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 48% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
City of Toledo's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
Detected Contaminants
How City of Toledo compares to EPA limits
What This Means For You
Total Trihalomethanes (TTHM) at 1 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Stage 2 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Fecal Coliform at 1 presence exceeds the EPA maximum of presence.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 27 detections recorded.
Total Trihalomethanes (TTHM) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Ohio
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
City of Toledo (EPA ID: OH4801411) is a community water system in Ohio that serves approximately 360,000 people from surface water sources.
This system provides water to 25 ZIP codes across 11 communities.
ZIP-Area Home Safety Context: B (73/100)
This is the average Home Safety Score for 18 of 25 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 4 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 2, 2025 | Stage 2 DBP Rule | Non-health-based | Resolved |
| January 25, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| March 1, 2023 | Fecal Coliform | Health-based | Resolved |
| January 1, 2022 | Total Trihalomethanes (TTHM) | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
| Stage 2 DBP Rule | Treatment Failure | 1 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
| Fecal Coliform | Microbiological | 1 | Yes |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OH or modeled from parcel and building-footprint data.
- 43504 - Berkey
- 43528 - Holland
- 43537 - Maumee
- 43542 - Monclova
- 43558 - Swanton
- 43560 - Sylvania
- 43566 - Waterville
- 43571 - Whitehouse
- 43604 - Toledo
- 43605 - Toledo
- 43606 - Toledo
- 43607 - Toledo
- 43608 - Toledo
- 43609 - Toledo
- 43610 - Toledo
- 43611 - Toledo
- 43612 - Toledo
- 43613 - Toledo
- 43614 - Toledo
- 43615 - Toledo
- 43616 - Oregon
- 43617 - Toledo
- 43619 - Northwood
- 43620 - Toledo
- 43623 - Toledo
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Toledo (OH4801411) on EPA.gov.
Frequently Asked Questions
Is City of Toledo water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for City of Toledo; its 4 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does City of Toledo serve?
City of Toledo serves approximately 360,000 people across 25 ZIP codes in Ohio.
Where does City of Toledo get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
- #46 / 100 Highest Exposure Burden (U.S.)
- #20 / 50 Most Disadvantaged Populations Served (Ohio)
- #2 / 50 Highest Exposure Burden (Ohio)
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). City of Toledo (OH): 1 Health Violation. https://zipcheckup.com/water-system/oh4801411/
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title = {{City of Toledo (OH): 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/oh4801411/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
City of Toledo (EPA ID: OH4801411) - request the latest Consumer Confidence Report or ask about specific contaminants.