Southern Wood-Tikchik Area, Alaska
The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). 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 Southern Wood-Tikchik Area, Alaska.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Water | 106K | Not rated | Not rated | ||
| Okstukuk-Mosquitopoint-Typic Haplocryods association, 0 to 3 percent slopes | 60K | Well drained | B | Somewhat limited | Somewhat limited |
| Ahklun-Klak association, 12 to 85 percent slopes | 57K | Well drained | B | Very limited | Very limited |
| Mosquitopoint-Typic Haplocryods-Okstukuk association, 0 to 35 percent slopes | 30K | Well drained | B | Very limited | Very limited |
| Highlake-Rock outcrop-Rubble land complex, 0 to 150 percent slopes | 28K | Very limited | Very limited | ||
| Goodnews-Buchia association, 5 to 85 percent slopes | 21K | Well drained | B | Very limited | Very limited |
| Ahklun very gravelly medial sandy loam, 20 to 85 percent slopes | 15K | Well drained | B | Very limited | Very limited |
| Western Maritime Terraces and Boreal Flood Plains | 11K | Moderately well drained | B | Very limited | Very limited |
| Tikchik-Cryaquepts-Nishlik complex, 0 to 40 percent slopes | 9K | Well drained | B | Somewhat limited | Very limited |
| Klak-Nagugun-Pegati-Typic Cryofluvents, occasionally flooded, complex, 0 to 35 percent slopes | 8K | Well drained | A | Very limited | Very limited |
| Klak-Ahklun-Goodnews association, 3 to 60 percent slopes | 8K | Well drained | B | Very limited | Very limited |
| Western Maritime Glaciated Plains | 6K | Well drained | B | Somewhat limited | Very limited |
| Okstukuk-Typic Haplocryods complex, 0 to 8 percent slopes | 5K | Well drained | B | Somewhat limited | Somewhat limited |
| Tikchik-Cranberrycreek-Sharp-Stuyahok complex, 0 to 40 percent slopes | 5K | Well drained | B | Somewhat limited | Somewhat limited |
| Klak-Mitlak-Twinhills association, 5 to 65 percent slopes | 5K | Well drained | A | Very limited | Very limited |
| Okstukuk silt loam, 0 to 5 percent slopes | 5K | Well drained | B | Somewhat limited | Somewhat limited |
| Buchia-Ahklun complex, 20 to 75 percent slopes | 3K | Well drained | B | Very limited | Very limited |
| Goodnews-Nagugun complex, 0 to 15 percent slopes | 2K | Well drained | D | Very limited | Very limited |
| Klak-Nigag-Pungokepuk complex, 2 to 40 percent slopes | 1K | Well drained | A | Very limited | Very limited |
| Ahklun Mountains-High Elevation Nonvegetated Mountains | 480 | Not rated | Not rated |
What This Means
Building & Foundations
About 49% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 52% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.