Soil survey area

Door County, Wisconsin

Survey Area WI029• Wisconsin
The short version

The most common soil here is Summerville, on about 12% of the land: a fine sandy loam, gritty and crumbly. Longrie and Omena come next.

About 68% of the land drains well, and 28% stays wet for long stretches; groundwater comes within two feet of the surface under 37% of it.

USDA rates 86% of the land very limited for a standard septic drain field, and 66% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 13% of the land floods occasionally or more, and bedrock lies within 40 inches under 40% of it.

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 Door County, Wisconsin, each drawn five feet deep from its official USDA description, in its recorded colors.

Summerville
12% of the area
Fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Inceptisols
Longrie
11% of the area
Sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Spodosols
Omena
8% of the area
Sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Alfisols
Onaway
7% of the area
Fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Alfisols
Namur
6% of the area
Silt loam topsoil · well drained
Smooth, like flour. Fertile and holds water well.
Mollisols
Solona
5% of the area
Loam topsoil · somewhat poorly drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Mollisols

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 Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). 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 Door County, Wisconsin. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Onaway-Ossineke fine sandy loams, moraine, 1 to 6 percent slopes 34K Well drainedCNot limitedSomewhat limited
Summerville loam, 2 to 6 percent slopes 32K Well drainedDVery limitedVery limited
Longrie loam, 2 to 6 percent slopes 28K Well drainedCVery limitedVery limited
Omena sandy loam, 2 to 6 percent slopes 21K Well drainedBSomewhat limitedVery limited
Namur loam, 0 to 6 percent slopes 20K Well drainedDVery limitedVery limited
Solona loam, 0 to 3 percent slopes 17K Somewhat poorly drainedB/DVery limitedVery limited
Carbondale muck, 0 to 2 percent slopes 15K Very poorly drainedA/DVery limitedVery limited
Kewaunee silt loam, 2 to 6 percent slopes, eroded 13K Well drainedDSomewhat limitedVery limited
Summerville loam, 0 to 2 percent slopes 11K Well drainedDVery limitedVery limited
Angelica loam, 0 to 2 percent slopes 9K Poorly drainedB/DVery limitedVery limited
Bonduel loam, 0 to 3 percent slopes 8K Somewhat poorly drainedCVery limitedVery limited
Omena sandy loam, 6 to 12 percent slopes 7K Well drainedBSomewhat limitedVery limited
Longrie loam, 0 to 2 percent slopes 7K Well drainedCVery limitedVery limited
Cathro muck 6K Very poorly drainedB/DVery limitedVery limited
Manawa silt loam, 0 to 3 percent slopes 6K Somewhat poorly drainedDVery limitedVery limited
Markey muck, 0 to 2 percent slopes 5K Very poorly drainedA/DVery limitedVery limited
Kolberg silt loam, 2 to 6 percent slopes 5K Well drainedDVery limitedVery limited
Rousseau fine sand, 2 to 6 percent slopes 5K Well drainedASomewhat limitedVery limited
Onaway fine sandy loam, moraine, 6 to 12 percent slopes, eroded 5K Well drainedCSomewhat limitedSomewhat limited
Omro silt loam, 2 to 6 percent slopes 5K Moderately well drainedCVery 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.
Inceptisols
Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

What This Means

Building & Foundations

About 66% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 86% 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

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.

Look Up a Specific Address

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