Cheyenne County's SSURGO septic rating
Somewhat limited
Cheyenne County, KS's SSURGO dominant class comes back "Somewhat limited", covering 56.4% of the county. Modification usually rescues a conventional system at this rating - added fill or a larger field - rather than forcing a full engineered redesign. The county spans 1,019.89 square miles, home to 2,646 people.
What this number does and doesn't tell you
Two lots a mile apart in Cheyenne County can carry different soil, even though they share one countywide rating. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Cheyenne County: conventional vs. engineered cost
56.4% of Cheyenne County carrying a "Somewhat limited" reading changes the realistic budget here. Conventional systems run $3,000-$8,000 where they pass; where they don't, engineered alternatives (mound or aerobic treatment, whichever the health department requires) run $10,000-$40,000 - budget toward the higher figure until a perc test says otherwise.
Cheyenne County's rank among Kansas counties
Among the 3,058 rated counties on this site, Cheyenne County, KS ranks 2,961 most-constrained nationally, and 97 of 105 within Kansas.
Related guides
How this rating is built, and its real limits · How a percolation test actually works