Totchaket Area, Alaska
The dominant drainage class is Very poorly 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 Totchaket Area, Alaska.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Tanacross silt loam | 117K | Very poorly drained | C/D | Very limited | Very limited |
| Nenana silt loam, shallow, undulating | 78K | Well drained | B | Very limited | Very limited |
| Bolio peat | 42K | Very poorly drained | D | Very limited | Very limited |
| Beales silt loam, undulating | 40K | Somewhat excessively drained | B | Not limited | Very limited |
| Teklanika loamy fine sand, rolling | 34K | Excessively drained | A | Somewhat limited | Very limited |
| Tanana silt loam | 33K | Poorly drained | D | Very limited | Very limited |
| Dotlake silt loam | 28K | Poorly drained | D | Very limited | Very limited |
| Volkmar silt loam | 26K | Moderately well drained | C | Very limited | Very limited |
| Nenana silt loam, shallow, nearly level | 25K | Well drained | B | Very limited | Very limited |
| Kantishna peat | 24K | Very poorly drained | D | Very limited | Very limited |
| Salchaket very fine sandy loam | 20K | Well drained | B | Very limited | Very limited |
| Nenana silt loam, shallow, rolling | 17K | Well drained | B | Very limited | Very limited |
| Volkmar-Nenana complex | 17K | Moderately well drained | B | Very limited | Very limited |
| Teklanika loamy fine sand, hilly | 13K | Excessively drained | A | Very limited | Very limited |
| Beales silt loam, nearly level | 12K | Somewhat excessively drained | B | Not limited | Very limited |
| Bradway very fine sandy loam | 11K | Very poorly drained | D | Very limited | Very limited |
| Water | 10K | Not rated | Not rated | ||
| Richardson silt loam | 6K | Moderately well drained | B/D | Very limited | Very limited |
| Teklanika loamy fine sand, very steep | 6K | Excessively drained | A | Very limited | Very limited |
| Koyukuk silt loam, undulating | 5K | Well drained | B | Somewhat 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, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 98% 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.