Editorial team

Mara Kowalczyk

Editor, radon cost data

Mara edits the cost benchmarks and EPA Zone pages. She works from EPA radon documents, EIA electricity price tables and state health department program pages, and rewrites any number that cannot be traced to a source.

What she edits

The cost hub, the system-by-foundation guides, the EPA Zone data and the running-cost arithmetic. Installed bands are reconciled against their named source each quarter; the fan-energy figure is recomputed whenever EIA publishes a new monthly average.

How a page is reviewed before it publishes

Every cost figure names the publication it came from and the date it was checked. Zone pages must quote EPA's own zone definitions, not paraphrases circulating on contractor sites. Any claim that a state "requires" testing or mitigation at sale is verified against the statute or removed — in most states the requirement is disclosure, not testing.

What this site does not claim

We do not install systems and we do not measure houses. Our testing pages explain what each method measures; they are not a substitute for testing your own home.

Contact the editor

Corrections, source documents and quote reports go tocontact@radonlab.com. Include the page URL and the document you are working from; we reply with the change or the reason it was not made.

Related policies

Methodology explains how prices and Zone data are built. Editorial policy covers sourcing and corrections.