Mercer County, Ohio

Survey Area OH107 Ohio

The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is D (very slow infiltration, high runoff). 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 Mercer County, Ohio.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Pewamo silty clay loam, 0 to 1 percent slopes 83K Very poorly drainedC/DVery limitedVery limited
Blount silt loam, ground moraine, 2 to 4 percent slopes 67K Somewhat poorly drainedDVery limitedVery limited
Blount silt loam, ground moraine, 0 to 2 percent slopes 29K Somewhat poorly drainedDVery limitedVery limited
Blount silt loam, end moraine, 2 to 4 percent slopes 23K Somewhat poorly drainedDVery limitedVery limited
Water 11K Not ratedNot rated
Glynwood silt loam, ground moraine, 2 to 6 percent slopes 10K Moderately well drainedDVery limitedVery limited
Glynwood silt loam, end moraine, 2 to 6 percent slopes 9K Moderately well drainedDVery limitedVery limited
Minster silty clay loam, 0 to 1 percent slopes 9K Very poorly drainedC/DVery limitedVery limited
Minster silty clay loam, till substratum, 0 to 1 percent slopes 6K Very poorly drainedC/DVery limitedVery limited
Blount silt loam, end moraine, 0 to 2 percent slopes 5K Somewhat poorly drainedDVery limitedVery limited
Sloan silty clay loam, 0 to 1 percent slopes, frequently flooded 4K Very poorly drainedB/DVery limitedVery limited
Glynwood clay loam, ground moraine, 6 to 12 percent slopes, eroded 4K Moderately well drainedDVery limitedVery limited
Shoals silt loam, 0 to 2 percent slopes, occasionally flooded 3K Somewhat poorly drainedB/DVery limitedVery limited
Saranac-Spencerville silty clay loams, 0 to 1 percent slopes, frequently flooded 3K Very poorly drainedC/DVery limitedVery limited
Glynwood clay loam, 6 to 12 percent slopes, eroded 3K Moderately well drainedDVery limitedVery limited
Elliott silt loam, 1 to 4 percent slopes 3K Somewhat poorly drainedCVery limitedVery limited
Saranac silty clay loam, 0 to 2 percent slopes, frequently flooded 3K Very poorly drainedC/DVery limitedVery limited
Glynwood silt loam, end moraine, 1 to 4 percent slopes, eroded 2K Moderately well drainedDVery limitedVery limited
Millgrove silty clay loam 2K Very poorly drainedB/DVery limitedVery limited
McGary silty clay loam, 0 to 2 percent slopes 2K Somewhat poorly drainedDVery limitedVery limited

What This Means

Building & Foundations

About 96% of soils are rated "very limited" for dwellings with basements. Specific challenges include poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 96% 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.

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