Soil series profile
Latty soil series
Latty is a very poorly drained soil with a silty clay surface, mapped on 203,593 acres in 19 counties across 2 states. Hydrologic group D.
- Drainage class
- Very poorly drained 97% of mapped acres
- Hydrologic group
- D 82% of mapped acres
- Typical topsoil pH
- 6.5 slightly acidic · range 6.5–7.0
- Mapped area
- 204k acres in 19 counties, 2 states
Typical Latty profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–7 in (Ap) | Silty clay | 6.5 | 44% | 15% | 4.8% |
| 7–24 in (Bg) | Silty clay | 7.2 | 49% | 10% | 2% |
| 24–37 in (BCg) | Silty clay | 7.7 | 52% | 3% | 0.5% |
| 37–67 in (C1) | Silty clay | 7.9 | 45% | 12% | 0.5% |
| 67–80 in (2C2) | Silty clay loam | 7.9 | 36% | 18% | 0.5% |

What this means
What Latty soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Latty soils is slightly acidic: pH 6.5 (most land between 6.5 and 7.0), the range most vegetables, flowers and lawn grasses prefer.
Clayey topsoil covers 92% of mapped Latty acres. Clay holds water and nutrients but drains slowly and compacts if worked wet: add compost, avoid tilling soggy soil and consider raised beds. The most common surface texture is silty clay (92% of mapped Latty acres).
97% of mapped Latty 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 97% 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 97% 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 97% of the acres in mapped Latty soils very limited, 0% somewhat limited and 0% not limited (3% 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 Latty soil is found
Mapped acres
Latty is mapped in Ohio and Michigan.
| County | Acres | Share of county land |
|---|---|---|
| Paulding County, OH | 60,181 | 22.6% |
| Defiance County, OH | 33,219 | 12.6% |
| Putnam County, OH | 22,603 | 7.3% |
| Lucas County, OH | 17,950 | 8.2% |
| Fulton County, OH | 9,923 | 3.8% |
| Van Wert County, OH | 9,873 | 3.8% |
| Wood County, OH | 9,398 | 2.4% |
| Logan County, OH | 9,157 | 3.1% |
| Williams County, OH | 6,955 | 2.6% |
| Wyandot County, OH | 6,906 | 2.7% |
| Marion County, OH | 6,885 | 2.7% |
| Ottawa County, OH | 3,475 | 2.1% |
| Hardin County, OH | 2,796 | 0.9% |
| Henry County, OH | 2,719 | 1.0% |
| Tuscola County, MI | 962 | 0.2% |
| Auglaize County, OH | 363 | 0.1% |
| St. Clair County, MI | 117 | 0.0% |
| Lapeer County, MI | 64 | 0.0% |
| Macomb County, MI | 48 | 0.0% |
Septic absorption fields
NRCS rating, share of Latty acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 96.6% |
| Not rated | 3.4% |
Drainage, water table and flooding
Share of Latty acres
- Depth to seasonal high water table
- About 0 inches (median where reported); within 18 inches on 97% of acres.
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 0–1% (median 0%).
- Topsoil organic matter
- Median 4.8%.
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 | 0.0% |
| Poorly drained | 0.0% |
| Very poorly drained | 96.6% |
| Not rated | 3.4% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 0.0% |
| B: moderate infiltration | 0.0% |
| C: slow infiltration | 0.0% |
| D: very slow infiltration (clayey, shallow or wet) | 81.5% |
| A/D: D as is, A if drained | 0.0% |
| B/D: D as is, B if drained | 0.0% |
| C/D: D as is, C if drained | 15.0% |
| Not rated | 3.4% |
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 Latty (component kind "Series") in SSURGO: 203,593 acres.
- Method
- Shares are by mapped acres of Latty components. The profile comes from the single largest Latty component. Full methodology.