Soil survey area

Tuscola County, Michigan

Survey Area MI157• Michigan
The short version

The most common soil here is Tappan, on about 17% of the land: a loam, a balanced mix that crumbles in your hand. Londo and Marlette come next.

About 16% of the land drains well, and 72% stays wet for long stretches; groundwater comes within two feet of the surface under 81% of it.

USDA rates 97% of the land very limited for a standard septic drain field, and 84% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 2% of the land floods occasionally or more.

Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.

The ground underfoot

The soils you're most likely standing on

The biggest named soils in Tuscola County, Michigan, each drawn five feet deep from its official USDA description, in its recorded colors.

Tappan
17% of the area
Loam topsoil · poorly drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Mollisols
Londo
11% of the area
Loam topsoil · somewhat poorly drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Alfisols
Marlette
5% of the area
Fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Alfisols
Guelph
5% of the area
Loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Alfisols
Pipestone
4% of the area
Sand topsoil · somewhat poorly drained
Loose sand that holds almost no water.
Spodosols
Avoca
3% of the area
Loamy sand topsoil · somewhat poorly drained
Gritty and loose. Water runs straight through it.
Spodosols

Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.

The biggest mapped areas

The dominant drainage class is Poorly drained and the dominant hydrologic group is C/D (varies with drainage). The most common soil order is Alfisols — moderately leached forest soils with a clay-enriched subsoil. 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 Tuscola County, Michigan. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Tappan-Londo loams, 0 to 3 percent slopes 80K Poorly drainedC/DVery limitedVery limited
Tappan loam, 0 to 1 percent slopes 44K Poorly drainedB/DVery limitedVery limited
Guelph-Londo loams, 0 to 6 percent slopes 27K Moderately well drainedCVery limitedVery limited
Pipestone sand, Erie-Huron Lake Plain, 0 to 3 percent slopes 22K Somewhat poorly drainedA/DVery limitedVery limited
Granby loamy fine sand 18K Poorly drainedA/DVery limitedVery limited
Tappan-Avoca complex, 0 to 3 percent slopes 17K Poorly drainedB/DVery limitedVery limited
Conover loam, 0 to 3 percent slopes 17K Somewhat poorly drainedC/DVery limitedVery limited
Boyer sandy loam, 0 to 6 percent slopes 16K Well drainedANot limitedVery limited
Marlette sandy loam, 6 to 12 percent slopes 15K Well drainedCSomewhat limitedVery limited
Marlette-Capac complex, 0 to 6 percent slopes 14K Well drainedCNot limitedVery limited
Wasepi sandy loam, 0 to 3 percent slopes 13K Somewhat poorly drainedA/DVery limitedVery limited
Ottokee loamy fine sand, 0 to 6 percent slopes 12K Moderately well drainedAVery limitedVery limited
Selfridge loamy sand, 0 to 3 percent slopes 12K Somewhat poorly drainedC/DVery limitedVery limited
Londo loam, 0 to 3 percent slopes 12K Somewhat poorly drainedC/DVery limitedVery limited
Corunna sandy loam 11K Poorly drainedB/DVery limitedVery limited
Gilford sandy loam 11K Very poorly drainedB/DVery limitedVery limited
Wolcott loam 10K Very poorly drainedB/DVery limitedVery limited
Wixom-Belleville loamy fine sands, 0 to 3 percent slopes 10K Somewhat poorly drainedC/DVery limitedVery limited
Capac loam, 1 to 5 percent slopes 9K Somewhat poorly drainedC/DVery limitedVery limited
Metamora sandy loam, 0 to 4 percent slopes 9K Somewhat poorly drainedB/DVery limitedVery limited

Soil Orders in This Area

The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.

Alfisols
Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.
Spodosols
Acidic forest soils with a leached layer. Common under conifers. Often have drainage issues from a compacted subsoil layer.
Mollisols
Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.
Entisols
Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.
Histosols
Organic peat and muck soils formed in wetlands. Very poor for building (compressible) and septic. Often in regulated wetlands.
Inceptisols
Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

What This Means

Building & Foundations

About 84% of soils are rated "very limited" for dwellings with basements. Specific challenges include poor drainage in some areas. A geotechnical assessment is recommended before building.

Septic Systems

About 97% 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.

Look Up a Specific Address

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