How to Check Leaking Underground Storage Tank Records
Data source: EPA and state leaking underground storage tank programs
Updated August 6, 2026. ZipCheckup withdrew the earlier quantitative edition of this article during a full data-trust rebuild. Old rankings, totals, correlations, and cost estimates are not carried forward unless they can be reproduced from accepted source-bound evidence.
What this page answers now
What EPA and state tank records can reveal near a property, with limits on location and cleanup status.
The primary evidence family for this topic is EPA and state leaking underground storage tank programs. Used within its published definitions, that evidence can identify recorded sites and the status fields published by the responsible program.
What the data does not establish
The same records cannot prove current exposure or map every historic tank to a household from ZIP proximity. A nearby record is not automatically a property-level finding. A missing match is an unknown state, not a measured zero. Different geographic units must not be joined as if they described the same population.
A safer review sequence
- Identify the exact address, utility, facility, monitor, tract, or other unit that the source measures.
- Check the record date, reporting period, units, qualifiers, and coverage. “ND” means not detected at the stated reporting limit; it is not the numeric value zero.
- Keep source disagreement visible. If two official sources report different values, retain both with their dates instead of silently choosing one.
- Use the record as a screening lead, then verify the site identifier and address, read the state cleanup record, and ask about closure documentation.
- Do not treat a ZIP-level pattern as an inspection, diagnosis, legal determination, insurance decision, or guarantee.
Where the Home Safety Score fits
This topic may appear elsewhere on ZipCheckup as context, but it is not automatically a weighted score component. The current Home Safety Score uses four required inputs across three equally weighted domains: drinking-water compliance, with PFAS inside that domain; radon; and annual AQI. Missing required evidence produces an unavailable score, not a zero or an inferred value.
Why the previous numbers were removed
The retired edition mixed older data releases, legacy Home Safety Score logic, and derived aggregates whose complete input trail could not be reproduced under the current standard. Replacing one old headline number with another would repeat the same error. This edition therefore keeps only claims that remain valid without those retired calculations.
Data status
This page is a revalidated methodology and interpretation guide, updated 2026-08-06. It is not a new national ranking. Any future quantitative edition must publish its source versions, as-of dates, measured denominators, treatment of missing data, exact calculation method, and a reproducible release identifier.
Frequently Asked Questions
What can how to check leaking underground storage tank records establish?
It can identify recorded sites and the status fields published by the responsible program. The conclusion is limited to the source, geography, period, units, and coverage shown with the record.
What does a missing record mean?
It means the source did not provide a matched measurement in the reviewed scope. It does not mean zero risk, no event, or a clean result.
How should I use this information for a home?
Use it as a screening lead: verify the site identifier and address, read the state cleanup record, and ask about closure documentation.