Hawkins and Hancock Counties, Tennessee
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 Hawkins and Hancock Counties, Tennessee.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Wallen-Rock outcrop complex, 25 to 60 percent slopes | 26K | Somewhat excessively drained | B | Very limited | Very limited |
| Talbott-Rock outcrop complex, 20 to 50 percent slopes | 25K | Well drained | C | Very limited | Very limited |
| Dandridge shaly silty clay loam, 35 to 60 percent slopes | 23K | Excessively drained | D | Very limited | Very limited |
| Wallen gravelly loam, 25 to 60 percent slopes | 22K | Somewhat excessively drained | B | Very limited | Very limited |
| Montevallo shaly silt loam, 25 to 50 percent slopes | 22K | Well drained | D | Very limited | Very limited |
| Lehew channery loam, 25 to 60 percent slopes | 20K | Excessively drained | A | Very limited | Very limited |
| Calvin-Wallen complex, 25 to 60 percent slopes | 18K | Well drained | B | Very limited | Very limited |
| Rock outcrop-Talbott complex, 10 to 40 percent slopes | 13K | D | Not rated | Not rated | |
| Dewey-Collegedale complex, 15 to 25 percent slopes, moderately eroded | 13K | Well drained | B | Very limited | Very limited |
| Cynthiana flaggy silty clay loam, 20 to 50 percent slopes | 11K | Well drained | D | Very limited | Very limited |
| Dewey-Collegedale complex, 6 to 15 percent slopes, moderately eroded | 11K | Well drained | B | Somewhat limited | Somewhat limited |
| Dandridge shaly silty clay loam, 20 to 35 percent slopes | 10K | Excessively drained | D | Very limited | Very limited |
| Water | 9K | Not rated | Not rated | ||
| Hamblen silt loam, deep, 0 to 2 percent slopes, occasionally flooded | 9K | Moderately well drained | C | Very limited | Very limited |
| Claiborne silt loam, 25 to 40 percent slopes | 9K | Well drained | B | Very limited | Very limited |
| Dandridge shaly silty clay loam, 5 to 20 percent slopes | 9K | Excessively drained | D | Very limited | Very limited |
| Clarksville cherty silt loam, 20 to 40 percent slopes | 8K | Somewhat excessively drained | B | Very limited | Very limited |
| Litz shaly silt loam, 35 to 60 percent slopes (sil) | 7K | Well drained | C | Very limited | Very limited |
| Fullerton gravelly silt loam, 15 to 25 percent slopes | 7K | Well drained | B | Very limited | Very limited |
| Jefferson cobbly loam, 20 to 35 percent slopes | 7K | Well drained | A | Very limited | Very limited |
What This Means
Building & Foundations
About 88% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 88% 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.