Drinking water quality · 2024
· Verified
What's in Toledo, OH tap water
12 contaminants were measured in the Toledo, OH water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 12
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- OH
PFAS — EPA UCMR5 (2023–2025)
1 PFAS compound detected in Toledo, OH
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFBA
● Detected (no federal limit)below national p90 (18 ng/L across detecting U.S. systems)
Where your water comes from · EPA SDWIS
Toledo, OH's drinking water comes from surface water, drawn from 1 source.
Source
- IN FROM TOLEDO CITY LAKE ERIE INTAKE
Treatment
- TOLEDO WTP
Distribution
Historical readings · EPA Six-Year Review (2012–2019)
1 contaminant historically over EPA limits in Toledo, OH
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
TTHM worst: 2013 | 0.105 mg/L 1.3× | 0.08 mg/L | '12'13'14'15'16'17'18'19 |
HAA5 worst: 2015 | 0.0341 mg/L within | 0.06 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE worst: 2018 | 4.35 mg/L within | 10 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE NITRITE worst: 2018 | 4.35 mg/L within | 10 mg/L | '12'13'14'15'16'17'18'19 |
FLUORIDE worst: 2013 | 1.08 mg/L within | 4 mg/L | '12'13'14'15'16'17'18'19 |
ATRAZINE worst: 2012 | 0.0003 mg/L within below national p90 | 0.003 mg/L | '12'13'14'15'17 |
SIMAZINE worst: 2015 | 0.00006 mg/L within | 0.004 mg/L | '15 |
NITRITE worst: 2015 | 0.01 mg/L within | 1 mg/L | '15 |
BARIUM worst: 2015 | 0.01 mg/L within below national p90 | 2 mg/L | '15 |
COPPER worst: 2014 | 0.017 mg/L below national p90 | — | '14'17'18'19 |
DBAA worst: 2012 | 0.0062 mg/L | — | '12'13'14'15'16'17'18'19 |
LEAD worst: 2014 | 0.005 mg/L | — | '14'17'18'19 |
DCAA worst: 2012 | 0.0213 mg/L | — | '12'13'14'15'16'17'18'19 |
MBAA worst: 2017 | 0.0021 mg/L | — | '17 |
MCAA worst: 2012 | 0.0054 mg/L | — | '12'13'16'17'19 |
TCAA worst: 2012 | 0.0069 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMODICHLOROMETHANE worst: 2012 | 0.0185 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMOFORM worst: 2012 | 0.0052 mg/L | — | '12'13'14'15'16'17'18'19 |
CHLOROFORM worst: 2012 | 0.058 mg/L | — | '12'13'14'15'16'17'18'19 |
DIBROMOCHLOROMETHANE worst: 2012 | 0.0142 mg/L | — | '12'13'14'15'16'17'18'19 |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.93–1.15 mg/LRangeSystem-wide | 4 mg/LMCLG | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| SodiumA naturally occurring salt component. | 7.47–20.9 mg/LRangeSystem-wide | None set | Detected — no federal limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | 0–0.0076 ug/LRangeSystem-wide | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 1–2.31RangeSystem-wide | None set | Detected — no federal limit |
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.03–0.21 NTURangeSystem-wide | None set | Detected — no federal limit |
People also ask about Toledo, OH's water
+Is Toledo, OH tap water safe to drink in 2024?
Every one of the 12 contaminants measured in Toledo, OH's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Toledo, OH tap water?
12 contaminants were measured in Toledo, OH's 2024 Consumer Confidence Report, spanning metals, disinfection byproducts, and inorganic chemicals. 6 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Toledo, OH's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Toledo, OH's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.