Skagway Municipality, AK: the USDA septic-suitability picture

Very limited

USDA puts Skagway Municipality, AK at "Very limited" for septic absorption fields, the dominant reading across 99.8% of the county's soil. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 99.8% of Skagway Municipality's land. The county spans 442.928 square miles, home to 1,119 people.

What this number does and doesn't tell you

Nothing about Skagway Municipality, AK'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.

Skagway Municipality: conventional vs. engineered cost

99.8% of Skagway Municipality 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.

Where this sits nationally

Among the 3,058 rated counties on this site, Skagway Municipality, AK ranks 9 most-constrained nationally, and 1 of 10 within Alaska.

Further reading

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