Carson City's SSURGO septic rating
Very limited
USDA puts Carson City, NV at "Very limited" for septic absorption fields, the dominant reading across 76.3% of the county's soil. That reading means a conventional system is a poor bet here - 76.3% of Carson City lands in the strictest "very limited" bucket USDA uses. The county spans 144.534 square miles, home to 58,148 people.
What this number does and doesn't tell you
Carson City's rating is an average across the whole county, not a promise about any one lot inside it. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Carson City: conventional vs. engineered cost
76.3% of Carson City carrying a "Very 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.
How Carson City, NV compares
Among the 3,058 rated counties on this site, Carson City, NV ranks 2,214 most-constrained nationally, and 13 of 16 within Nevada.
Further reading
How this rating is built, and its real limits · Conventional vs. engineered septic systems