Septic suitability in Rosebud County, MT

Very limited

Rosebud County, MT: USDA's soil survey calls 68.3% of the county "Very limited" for a septic leach field. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 68.3% of Rosebud County's land. The county spans 5,008.135 square miles, home to 8,194 people.

What this number does and doesn't tell you

Nothing about Rosebud County, MT's SSURGO figure applies to a specific address - it's a county-wide average. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Rosebud County: conventional vs. engineered cost

68.3% of Rosebud 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.

Rosebud County's rank among Montana counties

Among the 3,058 rated counties on this site, Rosebud County, MT ranks 2,521 most-constrained nationally, and 48 of 54 within Montana.

Before you act on this

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