Soil series profile

Rindge soil series

Rindge is a very poorly drained soil with a muck surface, mapped on 54,886 acres in 5 counties in CA. Hydrologic group A/D.

#5564 by mapped area Typic Haplosaprists (Histosols)

Drainage class
Very poorly drained
98% of mapped acres
Hydrologic group
A/D
95% of mapped acres
Typical topsoil pH
5.2
strongly acidic · range 5.2–6.2
Mapped area
55k
acres in 5 counties, 1 state

Typical Rindge profile

Texture and pH by depth

Typical Rindge soil profile by depth 0 in 20 in 40 in 60 in 0–10 in · Oap · pH 5.2 Muck 10–71 in · Oa · pH 5.5 Muck 71–79 in · 2C · pH 6.0 · 34% clay Silty clay loam
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 Rindge horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–10 in (Oap) Muck 5.2 Not reported Not reported 28%
10–71 in (Oa) Muck 5.5 Not reported Not reported 44%
71–79 in (2C) Silty clay loam 6.0 34% 12% 4%

Representative values from the most extensive Rindge map unit (Rindge muck, 0 to 2 percent slopes, partially drained, MLRA 16, survey area CA077). 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 Rindge soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Rindge soils is strongly acidic: pH 5.2 (most land between 5.2 and 6.2). Most vegetables and lawn grasses do best around 6.0 to 7.0, so lime is often needed; blueberries, azaleas and rhododendrons like it as it is.

Organic muck or peat is the most common topsoil (72% of mapped Rindge acres). It is rich and holds water, but is often wet, can be acidic, and settles when drained. The most common surface texture is muck (72% of mapped Rindge acres).

98% of mapped Rindge 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 96% 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 93% 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 96% of the acres in mapped Rindge soils very limited, 0% somewhat limited and 0% not limited (4% 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.

Flooding is mapped on 30% of the acres (0% occasional, 2% frequent).

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 Rindge soil is found

Mapped acres

Rindge is mapped in California.

Counties with the most mapped Rindge soil
County Acres Share of county land
San Joaquin County, CA 33,122 3.7%
Sacramento County, CA 11,183 1.8%
Contra Costa County, CA 9,502 2.1%
Monterey County, CA 956 0.0%
Solano County, CA 124 0.0%

Septic absorption fields

NRCS rating, share of Rindge acres

Not limited 0%
Somewhat limited 0%
Very limited 96%
Not rated 4%
Septic tank absorption field rating across mapped Rindge acres. Scale 0 to 100% of mapped land.
Show as a table
Septic tank absorption field rating across mapped Rindge acres.
CategoryShare of acres
Not limited0.0%
Somewhat limited0.0%
Very limited95.8%
Not rated4.2%

Drainage, water table and flooding

Share of Rindge acres

Depth to seasonal high water table
About 0 inches (median where reported); within 18 inches on 93% of acres.
Flooding
Mapped as flooding on 30% of acres (0% occasional, 2% frequent).
Slope
Typically 0–0% (median 0%).
Topsoil organic matter
Median 28%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 0%
Moderately well drained 0%
Somewhat poorly drained 0%
Poorly drained 0%
Very poorly drained 98%
Not rated 2%
Drainage class across mapped Rindge acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Rindge acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained0.0%
Moderately well drained0.0%
Somewhat poorly drained0.0%
Poorly drained0.0%
Very poorly drained98.0%
Not rated2.0%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) <1%
B: moderate infiltration 0%
C: slow infiltration 0%
D: very slow infiltration (clayey, shallow or wet) 0%
A/D: D as is, A if drained 95%
B/D: D as is, B if drained <1%
C/D: D as is, C if drained 0%
Not rated 4%
Hydrologic soil group across mapped Rindge acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Rindge acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.1%
B: moderate infiltration0.0%
C: slow infiltration0.0%
D: very slow infiltration (clayey, shallow or wet)0.0%
A/D: D as is, A if drained95.2%
B/D: D as is, B if drained0.5%
C/D: D as is, C if drained0.0%
Not rated4.2%

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 Rindge (component kind "Series") in SSURGO: 54,886 acres.
Method
Shares are by mapped acres of Rindge components. The profile comes from the single largest Rindge component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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