What this site is

PercCheck reports USDA SSURGO soil-survey septic-suitability data for informational purposes. It is not engineering advice, not a permit determination, and not a substitute for a licensed site evaluator or a real percolation test.

No warranty

Data is provided "as is" from USDA's own published tables. PercCheck makes no warranty as to its accuracy for any specific parcel, and is not liable for decisions made based on it. County-level figures do not predict any individual lot's outcome.

Acceptable use

This site may be used for personal research. Automated bulk scraping that degrades the site for other visitors is not permitted; the underlying USDA data is public and available directly from Soil Data Access.