Lead in Ohio school drinking water

What Ohio publishes about lead testing in its schools’ drinking water, what those numbers cover, and how we checked it. One row of a 51-jurisdiction survey, verified jurisdiction by jurisdiction rather than compiled from a single list.

OhioPartial

Publishing status: Publishes results
Coverage: Partial — some schools only
Data vintage: currency not established by the evidence we hold
Evidence: confirmed at sourceConfirmed at source 2026-08-09

Action level

Published action level, as verified in 2026: The jurisdiction publishes no action level of its own.

Action levels are not comparable between jurisdictions: across the 51 we surveyed they run from 1 ppb to 20 ppb, so a share of results above “the action level” measures the threshold as much as it measures the water. We never rank states on it. Where a jurisdiction explains how its own level was set, the verified research note at the foot of this page records the explanation verbatim.

No statistics on this page yet

Ohio publishes results, but we have not yet ingested them row by row, so this page carries no counts or rates for it — only what the survey verified about the publication itself. We publish a figure once we hold the rows it is computed from, and not before. The jurisdiction’s own results are linked below.

What changed since 2021

The baseline is the National Association of State Boards of Education’s 2021 survey. Every 2026 value below was re-checked for this survey; a value that did not move is a finding too.

Testing required: 2021 baseline: No · verified 2026: No
Action level: 2021 baseline: N/A · verified 2026: N/A
Publishes resultschanged: 2021 baseline: No · verified 2026: Yes

Changed since the 2021 baseline: publishes results.

Source and verification

What we checked: https://experience.arcgis.com/experience/34c22d173fe241d5ae51679854f6a40f
Checked on: 2026-08-09 — confirmed at source
Machine readability: T2 — structured but needs extraction (dashboard or web app)

Verified research note

Our field note for Ohio, published verbatim rather than summarised. Where it quotes a figure from a source, that is the source’s own number reproduced as we recorded it, not a rate we computed — everything we compute states its denominator and its unit.

⚠️ CORRECTION -- an earlier pass recorded Ohio as NOT publishing. That was WRONG. Ohio operates a public ArcGIS results dashboard (confirmed live), listed on EPA's own state grant-program contacts index. The error came from searching Ohio EPA's drinking-water pages, where the dashboard is not surfaced, and treating absence there as absence everywhere -- the exact failure mode flagged in that entry. Separately, schools that are themselves public water systems must issue a lead consumer notice to guardians within two business days. Testing is not required statewide, so coverage is partial. Press previously reported 14,000+ fixtures tested with 1,400+ above the federal limit.

Cite this page

TapWaterData Editorial. "School drinking water lead testing: Ohio." TapWaterData national school drinking-water lead testing database. Last updated 2026-08-09. Licensed under CC BY 4.0. https://www.tapwaterdata.com/school-lead-testing/ohio

@misc{tapwaterdata_school_lead_2026,
  author       = {TapWaterData Editorial},
  title        = {School drinking water lead testing: Ohio},
  year         = {2026},
  howpublished = {\url{https://www.tapwaterdata.com/school-lead-testing/ohio}},
  note         = {Last updated 2026-08-09. Licensed under CC BY 4.0}
}

Published under a Creative Commons Attribution 4.0 (CC BY 4.0) licence — free to republish, chart or build on with attribution. Last updated 2026-08-09.

All 51 jurisdictions — the national scorecard, the tier map, and the methodology behind every rating on this page.