What Lincoln County, OR's soil rates for a septic system

Very limited

Soil across 96% of Lincoln County, OR rates "Very limited" in USDA's septic-absorption-field interpretation. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 96% of Lincoln County's land. Lincoln County covers 980.989 square miles and counts 51,212 residents.

This is a county figure, not a parcel figure

Nothing about Lincoln County, OR's SSURGO figure applies to a specific address - it's a county-wide average. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Lincoln County.

System cost, conventional vs. engineered

Given Lincoln County's rating, plan for the engineered-system range rather than the conventional one. The engineered-system range, $10,000-$40,000 (mound or aerobic treatment), is the more realistic number to plan around, against $3,000-$8,000 for a conventional system on the rare lot that passes.

How Lincoln County, OR compares

Nationally, Lincoln County, OR is the 529-most-constrained of 3,058 rated counties for septic soil. Within Oregon alone it ranks 11 of 36.

Further reading

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