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Ottawa, OH Tap Water Quality 2026

Water quality report for Ottawa, OH — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Ottawa's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Ottawa Village PWSID: OH6900711 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. No PFAS was detected.

C

Ottawa earns a C for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: not detected
PFAS tested, none detected
33 violations since 2015, 3 health-based
No violations currently open
Ottawa's lead level vs. all Ohio community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Ohio utilities
Population Served
4186
~1920 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
33 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
2,923% of EPA action level
38,000 ppb
Action level: 1,300 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
TTHM MCL EXCEEDANCE 0.086 MG/L 0.080 mg/L 2026 Archived
Consumer Confidence Rule OTHER — — 2025 Unaddressed
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2025 Archived
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2025 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
Consumer Confidence Rule OTHER — — 2020 Unaddressed
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2020 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2020 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2020 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2020 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2020 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2020 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2020 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2020 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2020 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2020 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2020 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2020 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2020 Resolved
Consumer Confidence Rule OTHER — — 2019 Resolved
E. COLI MONITORING AND REPORTING — 0 2018 Resolved
Consumer Confidence Rule OTHER — — 2016 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2016 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

33 violations are on record since 2015, of which 3 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Ottawa Village
PWSID OH6900711
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 4,186
Service connections 1,920
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Ottawa tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Ottawa water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Ottawa? ▼
Ottawa Village (PWSID OH6900711). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2026-02-12. No significant deficiencies were recorded.

What Should Ottawa Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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