Soil series profile

Reaville soil series

Reaville is a somewhat poorly drained soil with a channery silt loam surface, mapped on 102,811 acres in 21 counties across 4 states. Hydrologic group D.

#3444 by mapped area fine-loamy Aquic Hapludalfs (Alfisols)

Drainage class
Somewhat poorly drained
74% of mapped acres
Hydrologic group
D
71% of mapped acres
Typical topsoil pH
5.8
moderately acidic · range 5.0–6.2
Mapped area
103k
acres in 21 counties, 4 states

Typical Reaville profile

Texture and pH by depth

Typical Reaville soil profile by depth 0 in 10 in 20 in 30 in 40 in 0–8 in · Ap · pH 5.8 · 19% clay Channery silt loam 8–19 in · Bt · pH 5.8 · 25% clay Channery silty clay loam 19–32 in · C · pH 5.8 · 24% clay Very channery silt loam 32–42 in · R 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 Reaville horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–8 in (Ap) Channery silt loam 5.8 19% 27% 2.5%
8–19 in (Bt) Channery silty clay loam 5.8 25% 18% 0.25%
19–32 in (C) Very channery silt loam 5.8 24% 22% 0.25%
32–42 in (R) Bedrock Not reported Not reported Not reported Not reported

Representative values from the most extensive Reaville map unit (Reaville channery silt loam, 3 to 8 percent slopes, survey area PA017). 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 Reaville soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Reaville soils is moderately acidic: pH 5.8 (most land between 5.0 and 6.2). 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 100% of mapped Reaville acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silt loam (71% of mapped Reaville acres).

74% of mapped Reaville 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 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.

A seasonal high water table comes within 18 inches of the surface on 47% 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 100% of the acres in mapped Reaville 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 Reaville soil is found

Mapped acres

Reaville is mapped in Pennsylvania, New Jersey, Maryland and Virginia.

Counties with the most mapped Reaville soil
County Acres Share of county land
Bucks County, PA 23,173 6.1%
Montgomery County, PA 21,631 7.0%
Somerset County, NJ 10,558 5.5%
Frederick County, MD 9,568 2.3%
Hunterdon County, NJ 8,341 3.0%
Adams County, PA 7,872 2.4%
York County, PA 4,218 0.7%
Carroll County, MD 3,590 1.3%
Middlesex County, NJ 3,393 1.7%
Mercer County, NJ 3,128 2.2%
Prince William County, VA 1,698 0.9%
Lancaster County, PA 1,537 0.3%
Chester County, PA 1,159 0.2%
Montgomery County, MD 1,138 0.4%
Berks County, PA 1,011 0.2%
Dauphin County, PA 333 0.1%
Perry County, PA 148 0.0%
Morris County, NJ 116 0.0%
Lehigh County, PA 96 0.0%
Lebanon County, PA 88 0.0%
Northampton County, PA 16 0.0%

Septic absorption fields

NRCS rating, share of Reaville acres

Not limited 0%
Somewhat limited 0%
Very limited 100%
Septic tank absorption field rating across mapped Reaville acres. Scale 0 to 100% of mapped land.
Show as a table
Septic tank absorption field rating across mapped Reaville acres.
CategoryShare of acres
Not limited0.0%
Somewhat limited0.0%
Very limited100.0%

Drainage, water table and flooding

Share of Reaville acres

Depth to seasonal high water table
About 1.7 feet (20 in) (median where reported); within 18 inches on 47% of acres.
Flooding
Not mapped as flooding on most acres.
Slope
Typically 2–9% (median 5%).
Topsoil organic matter
Median 2.5%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 0%
Moderately well drained 26%
Somewhat poorly drained 74%
Poorly drained 0%
Very poorly drained 0%
Drainage class across mapped Reaville acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Reaville acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained0.0%
Moderately well drained25.9%
Somewhat poorly drained74.1%
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 29%
D: very slow infiltration (clayey, shallow or wet) 71%
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 Reaville acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Reaville acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration0.0%
C: slow infiltration28.6%
D: very slow infiltration (clayey, shallow or wet)71.4%
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 Reaville (component kind "Series") in SSURGO: 102,811 acres.
Method
Shares are by mapped acres of Reaville components. The profile comes from the single largest Reaville component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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