PercCheck: A County-Level Septic Reality Check

Field notes

The lookup reports the area-weighted dominant soil condition from USDA's SSURGO survey rather than testing an individual parcel. Results are grouped into three classes for standard septic absorption fields, with the homepage listing 2,913 counties as very limited and 145 as somewhat limited. PercCheck also places the soil result beside indicative system costs and identifies Sutton County, Texas as its most-constrained example, while directing users to a real site-specific test for permitting.