Isabella County, Michigan
The most common soil here is Coloma, on about 7% of the land: a loamy sand, gritty and loose. Ithaca and Spinks come next.
About 44% of the land drains well, and 54% stays wet for long stretches; groundwater comes within two feet of the surface under 54% of it.
USDA rates 97% of the land very limited for a standard septic drain field, and 58% 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 soils you're most likely standing on
The biggest named soils in Isabella County, Michigan, each drawn five feet deep from its official USDA description, in its recorded colors.
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 Somewhat 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 Isabella County, Michigan. Search your address to find the exact soil composition, drainage, and series details at your specific location.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Ithaca loam, 0 to 4 percent slopes | 27K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Onekama loam, Saginaw Lobe, 2 to 6 percent slopes | 19K | Well drained | D | Not limited | Very limited |
| Pipestone sand, Erie-Huron Lake Plain, 0 to 3 percent slopes | 19K | Somewhat poorly drained | A/D | Very limited | Very limited |
| Conover loam, 0 to 3 percent slopes | 18K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Remus-Spinks complex, 1 to 6 percent slopes | 18K | Well drained | C | Not limited | Very limited |
| Coloma sand, 0 to 6 percent slopes | 15K | Somewhat excessively drained | A | Not limited | Very limited |
| Selfridge loamy sand, 0 to 3 percent slopes | 15K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Capac loam, 0 to 4 percent slopes | 14K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Pinnebog muck | 13K | Very poorly drained | A/D | Very limited | Very limited |
| Parkhill loam, 0 to 1 percent slopes | 11K | Poorly drained | C/D | Very limited | Very limited |
| Kingsville loamy sand | 11K | Poorly drained | A/D | Very limited | Very limited |
| Plainfield sand, 0 to 6 percent slopes | 10K | Excessively drained | A | Not limited | Very limited |
| Remus-Spinks complex, 6 to 12 percent slopes | 10K | Well drained | C | Somewhat limited | Very limited |
| Spinks sand, 0 to 6 percent slopes | 10K | Well drained | A | Not limited | Very limited |
| Adrian muck, 0 to 1 percent slopes | 9K | Very poorly drained | A/D | Very limited | Very limited |
| Filer loam, 2 to 6 percent slopes | 8K | Well drained | C | Not limited | Very limited |
| Ziegenfuss loam | 8K | Poorly drained | C/D | Very limited | Very limited |
| Guelph loam, 2 to 6 percent slopes | 8K | Well drained | C | Not limited | Very limited |
| Coloma sand, 6 to 12 percent slopes | 6K | Somewhat excessively drained | A | Not limited | Very limited |
| Parkhill loam, non dense till subsoil, 0 to 2 percent slopes | 5K | Poorly drained | C/D | Very limited | Very 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.
What This Means
Building & Foundations
About 58% 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.