Soil series profile

Sideling soil series

Sideling is a moderately well drained soil with a gravelly loam surface, mapped on 77,844 acres in 14 counties across 3 states. Hydrologic group C.

#4270 by mapped area fine-loamy Oxyaquic Hapludults (Ultisols)

Drainage class
Moderately well drained
>99% of mapped acres
Hydrologic group
C
>99% of mapped acres
Typical topsoil pH
5.3
strongly acidic · range 4.5–5.3
Mapped area
78k
acres in 14 counties, 3 states

Typical Sideling profile

Texture and pH by depth

Typical Sideling soil profile by depth 0 in 20 in 40 in 60 in 0–4 in · H1 · pH 5.3 · 18% clay Gravelly loam 4–38 in · H2 · pH 5.3 · 28% clay Gravelly clay loam 38–74 in · H3 · pH 5.3 · 36% clay Channery 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).
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Typical Sideling horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–4 in (H1) Gravelly loam 5.3 18% 43% 1%
4–38 in (H2) Gravelly clay loam 5.3 28% 38% 0.25%
38–74 in (H3) Channery silty clay loam 5.3 36% 19% 0.25%

Representative values from the most extensive Sideling map unit (Sideling gravelly loam, 8 to 25 percent slopes, extremely stony, survey area PA055). 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 Sideling soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Sideling soils is strongly acidic: pH 5.3 (most land between 4.5 and 5.3). 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.

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

>99% of mapped Sideling acres is moderately well to excessively drained, which suits most garden plants.

For lawns and yards

On >99% 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 Sideling 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 Sideling soil is found

Mapped acres

Sideling is mapped in Pennsylvania, Maryland and West Virginia.

Counties with the most mapped Sideling soil
County Acres Share of county land
Franklin County, PA 35,734 7.3%
Fulton County, PA 16,414 5.9%
Morgan County, WV 9,757 7.6%
Allegany County, MD 8,305 3.1%
Washington County, MD 6,707 2.3%
Perry County, PA 853 0.2%
Mifflin County, PA 40 0.0%
Juniata County, PA 18 0.0%
Dauphin County, PA 6 0.0%
Schuylkill County, PA 6 0.0%
Cumberland County, PA 3 0.0%
Lebanon County, PA 2 0.0%
Huntingdon County, PA 1 0.0%
Snyder County, PA 0 0.0%

Septic absorption fields

NRCS rating, share of Sideling acres

Not limited 0%
Somewhat limited 0%
Very limited >99%
Not rated <1%
Septic tank absorption field rating across mapped Sideling acres. Scale 0 to 100% of mapped land.
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Septic tank absorption field rating across mapped Sideling acres.
CategoryShare of acres
Not limited0.0%
Somewhat limited0.0%
Very limited99.7%
Not rated0.3%

Drainage, water table and flooding

Share of Sideling acres

Depth to seasonal high water table
About 3.1 feet (37 in) (median where reported).
Flooding
Not mapped as flooding on most acres.
Slope
Typically 12–43% (median 17%).
Topsoil organic matter
Median 1%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 0%
Moderately well drained >99%
Somewhat poorly drained 0%
Poorly drained 0%
Very poorly drained 0%
Not rated <1%
Drainage class across mapped Sideling acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Sideling acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained0.0%
Moderately well drained99.8%
Somewhat poorly drained0.0%
Poorly drained0.0%
Very poorly drained0.0%
Not rated0.2%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) 0%
B: moderate infiltration 0%
C: slow infiltration >99%
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%
Not rated <1%
Hydrologic soil group across mapped Sideling acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Sideling acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration0.0%
C: slow infiltration99.8%
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%
Not rated0.2%

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 Sideling (component kind "Series") in SSURGO: 77,844 acres.
Method
Shares are by mapped acres of Sideling components. The profile comes from the single largest Sideling component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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