Foundation Repair Data
Expansive-soil foundation risk scored for 2,618 U.S. county-equivalent jurisdictions from USDA soil surveys, with repair-cost guidance for homeowners.
Independent Public-Data Publisher
We publish independent reference sites built from public records.
Willis Innovations builds free websites that turn authoritative public data — federal soil surveys, state licensing, certification, and registration rosters — into clear, practical answers for homeowners, buyers, and the reporters who cover them.
- Authoritative sources Every figure traces back to a named public dataset.
- Free and open No paywalls, no logins, no gatekeeping.
- Independent Not affiliated with any agency. Listings can't be bought.
Sourced from public data. Published for the public.
Reporter or researcher? Reach the publisher at Preston@WillisInnovations.com.
Coverage dated July 2026
Sources and caveats linked
Correction reports checked against source data
What We Publish
Three free, data-driven reference sites.
Locate Septic
A free directory of about 9,700 state-rostered septic pumpers and installers across 506 counties, with the contact detail each official state source publishes.
Well Water Data
4,800+ licensed well drillers and pump installers from state records, plus plain-English answers on testing and treating private well water.
How We Work
From public record to a page anyone can use.
Source
Start from authoritative public data — federal surveys and state licensing boards.
Structure & Verify
Clean, normalize, and cross-check the raw data into something usable and accurate.
Publish Free
Turn it into fast, clear pages the public can use at no cost, source cited.
Maintain
Refresh from the source on a schedule and correct errors as they're reported.
Built to be checked, not taken on faith.
- The source dataset is named on every page.
- Directory listings are drawn from official rosters and are never sold.
- Our methods and source datasets are explained publicly.
- Correction reports are checked against the named source data.
Data you can cite.
We publish original analyses from sourced public data and are glad to pull a custom cut for a story — a county, a metro, a statewide ranking — with the source named and honest caveats attached.
Reach the publisher directly at Preston@WillisInnovations.com.