Soil series profile

Bresser soil series

Bresser is a well drained soil with a sandy loam surface, mapped on 478,674 acres in 11 counties in CO. Hydrologic group B.

#609 by mapped area fine-loamy Aridic Argiustolls (Mollisols)

Drainage class
Well drained
100% of mapped acres
Hydrologic group
B
98% of mapped acres
Typical topsoil pH
6.8
neutral · range 6.7–6.8
Mapped area
479k
acres in 11 counties, 1 state

Typical Bresser profile

Texture and pH by depth

Typical Bresser soil profile by depth 0 in 20 in 40 in 60 in 0–5 in · Ap · pH 6.8 · 14% clay Sandy loam 5–8 in · Bt1 · pH 6.8 · 17% clay Sandy loam 8–27 in · Bt2 · pH 6.8 · 25% clay Sandy clay loam 27–36 in · Bt3 · pH 6.8 · 10% clay Sandy loam 36–80 in · C · pH 6.8 · 11% clay Loamy coarse sand
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 Bresser horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–5 in (Ap) Sandy loam 6.8 14% 67% 3%
5–8 in (Bt1) Sandy loam 6.8 17% 58% 1.25%
8–27 in (Bt2) Sandy clay loam 6.8 25% 57% 1.25%
27–36 in (Bt3) Sandy loam 6.8 10% 70% 0.75%
36–80 in (C) Loamy coarse sand 6.8 11% 82% 0.25%

Representative values from the most extensive Bresser map unit (Bresser sandy loam, cool, 5 to 9 percent slopes, survey area CO623). 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 Bresser soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Bresser soils is neutral: pH 6.8 (most land between 6.7 and 6.8), the range most vegetables, flowers and lawn grasses prefer.

Loamy topsoil (loam, silt loam and similar) covers 98% of mapped Bresser acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is sandy loam (97% of mapped Bresser acres).

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

For lawns and yards

Most land is in hydrologic groups B and C, where rain soaks in at a moderate pace.

For a septic system

For conventional septic absorption fields, NRCS rates 2% of the acres in mapped Bresser soils very limited, 91% somewhat limited and 7% not limited.

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 Bresser soil is found

Mapped acres

Bresser is mapped in Colorado.

Counties with the most mapped Bresser soil
County Acres Share of county land
Elbert County, CO 192,907 16.5%
El Paso County, CO 168,462 11.5%
Arapahoe County, CO 49,696 9.5%
Morgan County, CO 31,083 3.9%
Douglas County, CO 21,674 4.0%
Lincoln County, CO 7,255 0.4%
Weld County, CO 5,527 0.2%
Adams County, CO 1,251 0.2%
Broomfield County, CO 538 1.9%
Denver County, CO 257 0.3%
Jefferson County, CO 24 0.0%

Septic absorption fields

NRCS rating, share of Bresser acres

Not limited 7%
Somewhat limited 91%
Very limited 2%
Septic tank absorption field rating across mapped Bresser acres. Scale 0 to 100% of mapped land.
Show as a table
Septic tank absorption field rating across mapped Bresser acres.
CategoryShare of acres
Not limited6.7%
Somewhat limited90.9%
Very limited2.3%

Drainage, water table and flooding

Share of Bresser 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 2–13% (median 7%).
Topsoil organic matter
Median 3%.

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 Bresser acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Bresser 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 98%
C: slow infiltration 2%
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 Bresser acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Bresser acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration98.4%
C: slow infiltration1.6%
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 Bresser (component kind "Series") in SSURGO: 478,674 acres.
Method
Shares are by mapped acres of Bresser components. The profile comes from the single largest Bresser component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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