Mohave County, AZ: the USDA septic-suitability picture

Very limited

USDA puts Mohave County, AZ at "Very limited" for septic absorption fields, the dominant reading across 66.1% of the county's soil. That reading means a conventional system is a poor bet here - 66.1% of Mohave County lands in the strictest "very limited" bucket USDA uses. The county spans 13,332.121 square miles, home to 226,479 people.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Mohave County, AZ - never a reading for one specific parcel. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Mohave County: conventional vs. engineered cost

66.1% of Mohave County 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.

Mohave County's rank among Arizona counties

Among the 3,058 rated counties on this site, Mohave County, AZ ranks 2,582 most-constrained nationally, and 11 of 15 within Arizona.

Related guides

How this rating is built, and its real limits · Conventional vs. engineered septic systems