Bureau County, Illinois

Survey Area IL011 Illinois

The dominant drainage class is Well drained and the dominant hydrologic group is B/D (varies with drainage). 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 Bureau County, Illinois.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Osco silt loam, 2 to 5 percent slopes, eroded 44K Well drainedBSomewhat limitedSomewhat limited
Muscatune silt loam, 0 to 2 percent slopes 40K Somewhat poorly drainedB/DVery limitedVery limited
Catlin silt loam, 2 to 5 percent slopes, eroded 25K Moderately well drainedCSomewhat limitedVery limited
Sable silty clay loam, 0 to 2 percent slopes 20K Poorly drainedB/DVery limitedVery limited
Drummer silty clay loam, 0 to 2 percent slopes 18K Poorly drainedB/DVery limitedVery limited
Buckhart silt loam, 0 to 2 percent slopes 17K Moderately well drainedCSomewhat limitedVery limited
Sawmill silt loam, 0 to 2 percent slopes, occasionally flooded, overwash 17K Poorly drainedB/DVery limitedVery limited
Rozetta silt loam, 2 to 5 percent slopes 15K Well drainedBSomewhat limitedSomewhat limited
Osco silt loam, 2 to 5 percent slopes 14K Well drainedBSomewhat limitedSomewhat limited
Sable silt loam, 0 to 2 percent slopes, overwash 14K Poorly drainedB/DVery limitedVery limited
Greenbush silt loam, 2 to 5 percent slopes 11K Well drainedBSomewhat limitedSomewhat limited
Waukegan silt loam, 2 to 5 percent slopes, eroded 10K Well drainedBNot limitedVery limited
Ambraw loam, 0 to 2 percent slopes, occasionally flooded 10K Poorly drainedC/DVery limitedVery limited
Elburn silt loam, 0 to 2 percent slopes 10K Somewhat poorly drainedB/DVery limitedVery limited
Harpster silty clay loam, 0 to 2 percent slopes 9K Poorly drainedB/DVery limitedVery limited
Selma loam, 0 to 2 percent slopes 9K Poorly drainedB/DVery limitedVery limited
Fayette silt loam, glaciated, 5 to 10 percent slopes, eroded 9K Well drainedBSomewhat limitedSomewhat limited
Osco silt loam, 5 to 10 percent slopes, eroded 8K Well drainedBSomewhat limitedSomewhat limited
Saybrook silt loam, 2 to 5 percent slopes, eroded 8K Moderately well drainedCVery limitedVery limited
Hennepin loam, 35 to 70 percent slopes 7K Well drainedCVery limitedVery limited

What This Means

Building & Foundations

About 51% 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 67% 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.

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