Septic companies in Omak, WA
Two septic companies on record in Omak, Okanogan County. About 65% of mapped ground here is rated Very limited for septic drain fields, with filtering capacity the limiting feature.
Septic Permits in Okanogan County
What the ground in Omak is like
The USDA soil survey rates mapped ground in Omak for septic drain-field suitability across roughly 3.8 square miles. About 65% of the rated ground is classed "Very limited", meaning the soil has one or more features unfavorable for a conventional drain field, and the limits generally cannot be overcome without major soil reclamation, special design or expensive installation.
In Omak, the leading limit is filtering capacity: the soil does not clean effluent thoroughly enough on its way through. A drain field is a treatment system as well as a disposal path; when the ground cannot filter well, pathogens and nutrients travel farther than the survey allows. The survey flags that limit on about 47% of the rated ground here.
The limiting features the survey records most often here:
This is survey data for mapped areas, not a substitute for a site evaluation on your own lot. Conditions on a single parcel can differ from the map.
USDA NRCS SSURGO, ENG Septic Tank Absorption Fields · 64.9% Very limited · Filtering capacity · 32 map units · 3.77 sq mi · read 2026-08-30
The two companies
- 45Septech Septic and ConstructionRegister not checked(509) 557-0172
- 15Herriman Speedy Tank Service, Inc.Register not checked(509) 826-1642