Toledo, OH: 31 Health Violations — 73/100 (2026)
31 ZIP codes · 5 water systems · Updated 2026-06-03
EPA compliance records for Toledo tell a largely clear story: violation rates are low, health-based exceedances are uncommon, and the city's grade puts it well above average within OH.
How Toledo Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Toledo, OH
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of water safety grades across Toledo.
Toledo Water: The Quick Version
- Your city's water systems recorded 93 violations in the past 5 years.
- Average lead level: 0.007 mg/L.
- Estimated remediation: $1,887 per household.
- CDC health risk index: 14.07 — above typical levels.
Water Systems Serving Toledo
Water supply in Toledo, OH follows a divided structure: 3 utilities account for the largest share of residential service out of 5 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.
Overview
We track water quality and home safety data for 31 ZIP codes in Toledo, Ohio, covering 5 community water systems serving approximately 299,334 people.
31 of 31 ZIP codes (100%) have recorded EPA violations. 31 health-based violations documented.
Home Safety Score
Average Home Safety Score for Toledo: B (73/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Toledo water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0070 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 31 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 32 | 31 |
| Surface Water Treatment Rule | Treatment Technique | 32 | 31 |
| Fecal Coliform | Microbiological | 32 | 31 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 43601 | B | 3 | 1 | City of Toledo |
| 43603 | B | 3 | 1 | City of Toledo |
| 43604 | B | 3 | 1 | City of Toledo |
| 43605 | B | 3 | 1 | City of Toledo |
| 43606 | B | 3 | 1 | City of Toledo |
| 43607 | B | 3 | 1 | City of Toledo |
| 43608 | B | 3 | 1 | City of Toledo |
| 43609 | C | 3 | 1 | City of Toledo |
| 43610 | B | 3 | 1 | City of Toledo |
| 43611 | C | 3 | 1 | City of Toledo |
All ZIP Codes in Toledo
- 43601 [B] — 3 violations ⚠
- 43603 [B] — 3 violations ⚠
- 43604 [B] — 3 violations ⚠
- 43605 [B] — 3 violations ⚠
- 43606 [B] — 3 violations ⚠
- 43607 [B] — 3 violations ⚠
- 43608 [B] — 3 violations ⚠
- 43609 [C] — 3 violations ⚠
- 43610 [B] — 3 violations ⚠
- 43611 [C] — 3 violations ⚠
- 43612 [C] — 3 violations ⚠
- 43613 [C] — 3 violations ⚠
- 43614 [B] — 3 violations ⚠
- 43615 [C] — 3 violations ⚠
- 43617 [B] — 3 violations ⚠
- 43620 [B] — 3 violations ⚠
- 43623 [C] — 3 violations ⚠
- 43635 [B] — 3 violations ⚠
- 43652 [B] — 3 violations ⚠
- 43654 [B] — 3 violations ⚠
- 43656 [B] — 3 violations ⚠
- 43657 [B] — 3 violations ⚠
- 43659 [B] — 3 violations ⚠
- 43660 [B] — 3 violations ⚠
- 43661 [B] — 3 violations ⚠
- 43666 [B] — 3 violations ⚠
- 43667 [B] — 3 violations ⚠
- 43681 [B] — 3 violations ⚠
- 43682 [B] — 3 violations ⚠
- 43697 [B] — 3 violations ⚠
- 43699 [B] — 3 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Toledo
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Toledo
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Toledo: Remediation Cost in Perspective
At current valuations, Toledo falls in the moderate remediation-share tier — a level where treating this as a budgeted line item rather than an ad-hoc expense is the practical approach.
Remediation costs are moderate relative to home values in Toledo. The estimated $906–$3,226 range is manageable for most homeowners but still worth budgeting for. Home values are 37% below the Ohio average.
Protecting Children from Lead in Toledo
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Toledo appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Toledo
Across the years captured by NFIP data, Toledo has logged 877 flood insurance claims and carries 48% of its ZIP codes within FEMA-designated flood zones — a sustained record consistent with high flood exposure. The water quality implications run through several pathways: treatment systems repeatedly stressed by high-volume intake, private wells in FEMA zones facing recurring infiltration risk, and distribution infrastructure that has likely experienced multiple backflow episodes during large events.
Toledo has a significant flood history with 877 FEMA flood insurance claims on record, averaging $6,461 per claim. With 48% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,887</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Toledo, OH