Soil Type Selection Table
| Soil Type | Approximate Gradation | K - Factor | ||
| % Sand | % Silt | % Clay | ||
| Silt | 5 | 80 | 15 | 0.55 |
| Silt Loam | 15 | 65 | 20 | 0.45 |
| Silty Clay Loam | 15 | 55 | 30 | 0.39 |
| Silty Clay | 10 | 48 | 42 | 0.33 |
| Sandy Loam | 65 | 20 | 15 | 0.26 |
| Sand | 85 | 15 | 0 | 0.20 |
| Loamy Sand | 70 | 10 | 20 | 0.18 |
| Sandy Clay | 60 | 10 | 30 | 0.15 |
| Sandy Clay Loam | 75 | 4 | 21 | 0.13 |
| Clay Loam | 25 | 5 | 70 | 0.08 |
| Clay | 0 | 15 | 85 | 0.05 |