Soil series profile

Bates soil series

Bates is a well drained soil with a loam surface, mapped on 782,793 acres in 52 counties across 3 states. Hydrologic group C.

#281 by mapped area fine-loamy Typic Argiudolls (Mollisols)

Drainage class
Well drained
100% of mapped acres
Hydrologic group
C
100% of mapped acres
Typical topsoil pH
5.8
moderately acidic · range 5.8–5.8
Mapped area
783k
acres in 52 counties, 3 states

Typical Bates profile

Texture and pH by depth

Typical Bates soil profile by depth 0 in 10 in 20 in 30 in 40 in 0–13 in · A · pH 5.8 · 21% clay Loam 13–19 in · BA · pH 5.8 · 21% clay Loam 19–31 in · Bt · pH 5.8 · 32% clay Clay loam 31–42 in · Cr Bedrock
Depth to scale. More strongly shaded layers hold more clay. Horizon names are the soil survey's (A = topsoil, B = subsoil, C = parent material).
Show as a table
Typical Bates horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–13 in (A) Loam 5.8 21% 42% 2.5%
13–19 in (BA) Loam 5.8 21% 42% 0.7%
19–31 in (Bt) Clay loam 5.8 32% 35% 0.7%
31–42 in (Cr) Bedrock Not reported Not reported Not reported Not reported

Representative values from the most extensive Bates map unit (Bates-Collinsville complex, 3 to 8 percent slopes, survey area OK131). Other map units of this series vary within the series range.

Hands holding dark garden soil
Stock photo for illustration, not a sample of this soil series. Credit on the Sources & method page.

What this means

What Bates soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Bates soils is moderately acidic: pH 5.8. Many vegetables grow well here, and some gardens benefit from a little lime. Test before adding any.

Loamy topsoil (loam, silt loam and similar) covers >99% of mapped Bates acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is loam (79% of mapped Bates acres).

100% of mapped Bates acres is moderately well to excessively drained, which suits most garden plants.

For lawns and yards

On 100% 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.

For a septic system

For conventional septic absorption fields, NRCS rates >99% of the acres in mapped Bates soils very limited, 0% somewhat limited and 0% not limited.

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.

Generated from the mapped numbers above using fixed rules, not a site visit. See how these notes are written.

Where Bates soil is found

Mapped acres

Bates is mapped in Oklahoma, Kansas and Missouri.

Counties with the most mapped Bates soil
County Acres Share of county land
Montgomery County, KS 63,779 15.5%
Muskogee County, OK 55,398 10.7%
Rogers County, OK 55,333 12.9%
Hughes County, OK 33,845 6.6%
Craig County, OK 31,379 6.5%
Neosho County, KS 29,020 7.9%
Okmulgee County, OK 28,541 6.4%
Wilson County, KS 28,067 7.7%
Cherokee County, KS 27,415 7.3%
Franklin County, KS 27,161 7.4%
Washington County, OK 24,234 9.2%
Mayes County, OK 21,796 5.2%
Coal County, OK 21,372 6.4%
Wagoner County, OK 20,761 5.8%
Pittsburg County, OK 20,573 2.5%
Nowata County, OK 20,238 5.6%
Woodson County, KS 19,372 6.1%
Bates County, MO 19,190 3.6%
Labette County, KS 19,019 4.6%
McIntosh County, OK 17,810 4.5%
Bourbon County, KS 16,819 4.1%
Allen County, KS 16,465 5.1%
Pontotoc County, OK 14,836 3.2%
Elk County, KS 13,455 3.2%
Okfuskee County, OK 12,697 3.2%
Osage County, KS 12,062 2.7%
Tulsa County, OK 11,510 3.2%
Crawford County, KS 10,656 2.8%
Ottawa County, OK 10,588 3.5%
Coffey County, KS 10,475 2.6%
Lyon County, KS 9,747 1.8%
Linn County, KS 8,594 2.3%
Greenwood County, KS 6,946 1.0%
Chautauqua County, KS 6,622 1.6%
Bryan County, OK 6,600 1.1%
Creek County, OK 5,880 1.0%
Atoka County, OK 5,248 0.8%
Seminole County, OK 4,396 1.1%
Miami County, KS 3,734 1.0%
Delaware County, OK 2,853 0.6%
Anderson County, KS 2,299 0.6%
Osage County, OK 2,003 0.1%
Henry County, MO 1,712 0.4%
Douglas County, KS 519 0.2%
Barton County, MO 451 0.1%
Pawnee County, OK 449 0.1%
Vernon County, MO 415 0.1%
Cherokee County, OK 215 0.0%
Cass County, MO 132 0.0%
St. Clair County, MO 108 0.0%
Wabaunsee County, KS 2 0.0%
Chase County, KS 1 0.0%

Septic absorption fields

NRCS rating, share of Bates acres

Not limited 0%
Somewhat limited 0%
Very limited >99%
Not rated <1%
Septic tank absorption field rating across mapped Bates acres. Scale 0 to 100% of mapped land.
Show as a table
Septic tank absorption field rating across mapped Bates acres.
CategoryShare of acres
Not limited0.0%
Somewhat limited0.0%
Very limited99.4%
Not rated0.6%

Drainage, water table and flooding

Share of Bates acres

Depth to seasonal high water table
None reported within about 6.5 feet (median where reported).
Flooding
Not mapped as flooding on most acres.
Slope
Typically 2–6% (median 4%).
Topsoil organic matter
Median 2.5%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 100%
Moderately well drained 0%
Somewhat poorly drained 0%
Poorly drained 0%
Very poorly drained 0%
Drainage class across mapped Bates acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Bates acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained100.0%
Moderately well drained0.0%
Somewhat poorly drained0.0%
Poorly drained0.0%
Very poorly drained0.0%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) 0%
B: moderate infiltration 0%
C: slow infiltration 100%
D: very slow infiltration (clayey, shallow or wet) 0%
A/D: D as is, A if drained 0%
B/D: D as is, B if drained 0%
C/D: D as is, C if drained 0%
Hydrologic soil group across mapped Bates acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Bates acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration0.0%
C: slow infiltration100.0%
D: very slow infiltration (clayey, shallow or wet)0.0%
A/D: D as is, A if drained0.0%
B/D: D as is, B if drained0.0%
C/D: D as is, C if drained0.0%

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 Bates (component kind "Series") in SSURGO: 782,793 acres.
Method
Shares are by mapped acres of Bates components. The profile comes from the single largest Bates component. Full methodology.

Independent reference site. No government affiliation or endorsement.

Full narrative description: USDA Official Soil Series Description for Bates.