Ogle County, Illinois
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 Ogle County, Illinois.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Osco silt loam, 2 to 5 percent slopes | 55K | Well drained | B | Somewhat limited | Somewhat limited |
| Drummer silty clay loam, 0 to 2 percent slopes | 19K | Poorly drained | B/D | Very limited | Very limited |
| Jasper loam, 2 to 5 percent slopes | 17K | Well drained | B | Not limited | Somewhat limited |
| Lawson silt loam, cool mesic, 0 to 2 percent slopes, frequently flooded | 16K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Greenbush silt loam, 2 to 5 percent slopes | 14K | Well drained | B | Somewhat limited | Somewhat limited |
| Osco silt loam, 5 to 10 percent slopes, eroded | 14K | Well drained | B | Somewhat limited | Somewhat limited |
| Elburn silt loam, 0 to 2 percent slopes | 14K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Fayette silt loam, glaciated, 2 to 5 percent slopes | 13K | Well drained | B | Somewhat limited | Somewhat limited |
| Ogle silt loam, 2 to 5 percent slopes | 12K | Well drained | B | Somewhat limited | Somewhat limited |
| Plano silt loam, 2 to 5 percent slopes | 11K | Well drained | B | Somewhat limited | Very limited |
| Assumption silt loam, 2 to 5 percent slopes | 11K | Moderately well drained | C | Somewhat limited | Very limited |
| Muscatune silt loam, 0 to 2 percent slopes | 10K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Comfrey loam, 0 to 2 percent slopes, frequently flooded | 10K | Poorly drained | B/D | Very limited | Very limited |
| Selma loam, 0 to 2 percent slopes | 9K | Poorly drained | B/D | Very limited | Very limited |
| Wyanet silt loam, 5 to 10 percent slopes, eroded | 7K | Well drained | C | Not limited | Very limited |
| Plano silt loam, 0 to 2 percent slopes | 7K | Well drained | B | Somewhat limited | Very limited |
| Fayette silt loam, glaciated, 5 to 10 percent slopes, eroded | 7K | Well drained | B | Somewhat limited | Somewhat limited |
| Osco silt loam, 0 to 2 percent slopes | 7K | Well drained | B | Somewhat limited | Somewhat limited |
| La Hogue loam, 0 to 2 percent slopes | 7K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Wyanet silt loam, 2 to 5 percent slopes | 7K | Well drained | C | Somewhat limited | Very limited |
What This Means
Building & Foundations
About 31% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 47% of soils have significant septic limitations, while others are more suitable. A perc test is essential — conditions vary across the area.
Gardening & Agriculture
Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.