Soil series profile
Tedrow soil series
Tedrow is a somewhat poorly drained soil with a loamy sand surface, mapped on 151,134 acres in 36 counties across 4 states. Hydrologic group A/D.
- Drainage class
- Somewhat poorly drained 93% of mapped acres
- Hydrologic group
- A/D 85% of mapped acres
- Typical topsoil pH
- 6.7 neutral · range 6.5–6.7
- Mapped area
- 151k acres in 36 counties, 4 states
Typical Tedrow profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–8 in (H1) | Loamy sand | 6.7 | 6% | 85% | 2% |
| 8–54 in (H2) | Loamy sand | 6.7 | 5% | 79% | 0.25% |
| 54–60 in (H3) | Fine sand | 7.5 | 5% | 95% | 0.25% |

What this means
What Tedrow soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Tedrow soils is neutral: pH 6.7 (most land between 6.5 and 6.7), the range most vegetables, flowers and lawn grasses prefer.
Sandy topsoil covers 89% of mapped Tedrow acres. It drains fast and warms early in spring, but dries out and loses nutrients quickly: mulch, compost and steady watering help. The most common surface texture is loamy fine sand (45% of mapped Tedrow acres).
93% of mapped Tedrow acres is somewhat poorly to very poorly drained, so soil stays soggy for long spells after rain and in wet seasons. Raised beds, plants that tolerate wet feet, and not working the soil while wet all help.
For lawns and yards
On 88% of mapped acres, rain soaks in slowly (hydrologic groups C and D, including dual groups that are D until drained). Expect runoff and puddles after heavy rain: core-aerate compacted lawns and keep ground sloping away from foundations.
A seasonal high water table comes within 18 inches of the surface on 88% of mapped acres, often in spring. Basements, sump pumps and lawns in low spots feel it first.
For a septic system
For conventional septic absorption fields, NRCS rates 92% of the acres in mapped Tedrow soils very limited, 0% somewhat limited and 0% not limited (8% not rated, such as urban land, pits or water).
Where the soil is very limited (slow permeability, a high water table, flooding, shallow bedrock or steep slopes), alternative systems such as mound or sand-filter designs are common and cost more.
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Tedrow soil is found
Mapped acres
Tedrow is mapped in Michigan, Ohio, Wisconsin and Indiana.
| County | Acres | Share of county land |
|---|---|---|
| Wayne County, MI | 26,618 | 6.8% |
| Monroe County, MI | 19,379 | 5.5% |
| Gratiot County, MI | 17,675 | 4.9% |
| Lucas County, OH | 14,496 | 6.6% |
| Fulton County, OH | 12,161 | 4.7% |
| Marquette County, WI | 9,861 | 3.4% |
| Allegan County, MI | 8,721 | 1.6% |
| Brown County, WI | 8,270 | 2.8% |
| Wood County, OH | 6,269 | 1.6% |
| Sandusky County, OH | 5,750 | 2.2% |
| Oakland County, MI | 4,078 | 0.7% |
| Kent County, MI | 3,703 | 0.7% |
| Henry County, OH | 3,384 | 1.3% |
| Manitowoc County, WI | 2,828 | 0.7% |
| Newton County, IN | 2,038 | 0.8% |
| Cass County, MI | 1,310 | 0.4% |
| Lapeer County, MI | 978 | 0.2% |
| Washtenaw County, MI | 946 | 0.2% |
| Macomb County, MI | 791 | 0.3% |
| Saginaw County, MI | 547 | 0.1% |
| Defiance County, OH | 446 | 0.2% |
| Paulding County, OH | 309 | 0.1% |
| Midland County, MI | 244 | 0.1% |
| Shiawassee County, MI | 95 | 0.0% |
| Dane County, WI | 50 | 0.0% |
| LaPorte County, IN | 48 | 0.0% |
| Calumet County, WI | 38 | 0.0% |
| Kewaunee County, WI | 31 | 0.0% |
| Genesee County, MI | 28 | 0.0% |
| Clinton County, MI | 16 | 0.0% |
| Lenawee County, MI | 9 | 0.0% |
| Isabella County, MI | 6 | 0.0% |
| Sanilac County, MI | 5 | 0.0% |
| Seneca County, OH | 3 | 0.0% |
| St. Clair County, MI | 2 | 0.0% |
| Bay County, MI | 1 | 0.0% |
Septic absorption fields
NRCS rating, share of Tedrow acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 91.9% |
| Not rated | 8.1% |
Drainage, water table and flooding
Share of Tedrow acres
- Depth to seasonal high water table
- About 1.5 feet (18 in) (median where reported); within 18 inches on 88% of acres.
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 1–2% (median 1%).
- Topsoil organic matter
- Median 2%.
Drainage class
Show as a table
| Category | Share of acres |
|---|---|
| Excessively drained | 0.0% |
| Somewhat excessively drained | 0.0% |
| Well drained | 0.0% |
| Moderately well drained | 0.0% |
| Somewhat poorly drained | 92.6% |
| Poorly drained | 0.0% |
| Very poorly drained | 0.0% |
| Not rated | 7.4% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 3.8% |
| B: moderate infiltration | 0.0% |
| C: slow infiltration | 0.0% |
| D: very slow infiltration (clayey, shallow or wet) | 0.0% |
| A/D: D as is, A if drained | 85.2% |
| B/D: D as is, B if drained | 0.0% |
| C/D: D as is, C if drained | 2.9% |
| Not rated | 8.1% |
Sources & data dates
- Source
- USDA NRCS Soil Survey Geographic Database (SSURGO), queried through Soil Data Access. Public domain.
- Data date
- SSURGO as published on November 3, 2026 (most recent survey area update October 26, 2026). NRCS refreshes SSURGO each October.
- Scope
- All map unit components named Tedrow (component kind "Series") in SSURGO: 151,134 acres.
- Method
- Shares are by mapped acres of Tedrow components. The profile comes from the single largest Tedrow component. Full methodology.