HomeSoil seriesRittman

Rittman soil series

Rittman soils cover 189,808 mapped acres, almost all of them in Ohio. USDA rates shrink-swell a limit for houses without basements on 0% of that land, and a shallow water table a limit for basements on 99%.

It is the leading soil series by area in 16 of the counties and cities on this site.

SSURGO survey versions to August 5, 2026 · series description revised 2015-03

0%

of its land: shrink-swell limits houses without basements

99%

of its land: a shallow water table limits basements

2.6%

median highest linear extensibility (6% and up is high)

30%

median highest clay content in the top 150 cm

USDA's description

The Rittman series consists of very deep, moderately well drained soils formed in Wisconsinan age low lime till on plains. Saturated hydraulic conductivity is moderately high above the fragipan and moderately low in the fragipan. Slope ranges from 2 to 70 percent. Mean annual precipitation is about 1065 mm (42 in), and mean annual air temperature is about 9 degrees C (48 degrees F).

Source: USDA NRCS series description (OSD) for Rittman, revised 2015-03. Read it.

Engineering properties

Mapped area (SSURGO)189,808 acres
Shrink-swell limits houses without basements0.0%
Shallow water table limits basements99.4%
Very limited for septic absorption fields99.4%
Most common drainage classModerately well drained
Most common hydrologic soil groupD
Taxonomic classFine-loamy, mixed, active, mesic Aquic Fragiudalfs
Type locationPortage County, Ohio

Where Rittman is mapped

StateMapped acres
Ohio189,808

Places where Rittman leads

Counties and cities where Rittman covers more mapped land than any other series.

Other places where Rittman is a main soil

Counties and cities where Rittman is among the six soil series covering the most mapped land, but not the first. Share of the place's mapped land.

Counties

Texas and Ohio cities

Sources

Shares and properties: USDA NRCS SSURGO via Soil Data Access, weighted by each component's share of its map units. Description: the USDA NRCS series description. How we count.