Kanuti National Wildlife Refuge Area, Alaska
The dominant drainage class is Poorly drained and the dominant hydrologic group is D (very slow infiltration, high runoff). This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Kanuti National Wildlife Refuge Area, Alaska.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Interior Alaska Highlands-Boreal Upland-Hills and Plains | 502K | Poorly drained | D | Very limited | Very limited |
| Interior Alaska Highlands-Boreal Upland-Loess Plains and Peat Plateaus | 418K | Poorly drained | C/D | Very limited | Very limited |
| Interior Alaska Highlands-Boreal Upland and Subalpine-Rounded Mountains | 286K | Well drained | B | Not limited | Very limited |
| Interior Alaska Highlands-Boreal Upland-Rounded Mountains, Acid | 202K | Well drained | A | Very limited | Very limited |
| Interior Alaska Highlands-Boreal Lowland-Flood Plains and Terraces | 144K | Poorly drained | D | Very limited | Very limited |
| Interior Alaska Highlands-Boreal Alpine and Upland-Rugged Mountains | 33K | Well drained | B | Very limited | Very limited |
| Upper Kobuk and Koyukuk Hills and Valleys-Boreal Upland and Lowland-Glaciated Valleys | 24K | Poorly drained | D | Very limited | Very limited |
| Upper Kobuk and Koyukuk Hills and Valleys-Boreal Upland and Alpine-Rounded Mountains | 12K | Well drained | B | Very limited | Very limited |
| Interior Alaska Highlands-Boreal Alpine and Upland-Rounded Mountains, Acid | 11K | Well drained | B | Very limited | Very limited |
| Interior Alaska Highlands-Boreal Upland-Hills and Plains, Acid | 4K | Well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 82% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas. A geotechnical assessment is recommended before building.
Septic Systems
About 100% of soils are rated "very limited" for septic absorption fields. Poorly drained soils can't absorb septic effluent effectively. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Many soils hold water for extended periods. Raised beds are highly recommended to improve drainage for vegetables. Well-adapted native plants and water-loving species will do best in natural conditions.