Soil series profile

Abbottstown soil series

Abbottstown is a somewhat poorly drained soil with a silt loam surface, mapped on 90,194 acres in 19 counties across 3 states. Hydrologic group D.

#3820 by mapped area fine-loamy Aeric Fragiaqualfs (Alfisols)

Drainage class
Somewhat poorly drained
100% of mapped acres
Hydrologic group
D
85% of mapped acres
Typical topsoil pH
6.1
slightly acidic · range 5.5–6.1
Mapped area
90k
acres in 19 counties, 3 states

Typical Abbottstown profile

Texture and pH by depth

Typical Abbottstown soil profile by depth 0 in 10 in 20 in 30 in 40 in 50 in 0–10 in · Ap · pH 6.1 · 18% clay Silt loam 10–20 in · Bt · pH 5.5 · 25% clay Silt loam 20–39 in · Bx · pH 5.8 · 21% clay Channery silt loam 39–48 in · BCg · pH 5.8 · 25% clay Channery silt loam 48–58 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 Abbottstown horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–10 in (Ap) Silt loam 6.1 18% 29% 2.5%
10–20 in (Bt) Silt loam 5.5 25% 21% 0.25%
20–39 in (Bx) Channery silt loam 5.8 21% 9% 0.25%
39–48 in (BCg) Channery silt loam 5.8 25% 21% 0%
48–58 in (R) Bedrock Not reported Not reported Not reported Not reported

Representative values from the most extensive Abbottstown map unit (Abbottstown 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 Abbottstown soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Abbottstown soils is slightly acidic: pH 6.1 (most land between 5.5 and 6.1), the range most vegetables, flowers and lawn grasses prefer.

Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Abbottstown acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silt loam (>99% of mapped Abbottstown acres).

100% of mapped Abbottstown 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 >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.

A seasonal high water table comes within 18 inches of the surface on 98% 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 Abbottstown 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 Abbottstown soil is found

Mapped acres

Abbottstown is mapped in Pennsylvania, New Jersey and Maryland.

Counties with the most mapped Abbottstown soil
County Acres Share of county land
Bucks County, PA 31,191 8.2%
Adams County, PA 22,667 6.9%
Montgomery County, PA 12,040 3.9%
Carroll County, MD 5,341 1.9%
Hunterdon County, NJ 5,166 1.9%
Berks County, PA 2,813 0.5%
Lancaster County, PA 2,364 0.4%
Frederick County, MD 2,113 0.5%
Mercer County, NJ 1,901 1.3%
Somerset County, NJ 1,588 0.8%
York County, PA 972 0.2%
Lebanon County, PA 953 0.4%
Montgomery County, MD 377 0.1%
Chester County, PA 329 0.1%
Dauphin County, PA 163 0.1%
Lehigh County, PA 137 0.1%
Northampton County, PA 30 0.0%
Philadelphia County, PA 30 0.0%
Middlesex County, NJ 21 0.0%

Septic absorption fields

NRCS rating, share of Abbottstown acres

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

Drainage, water table and flooding

Share of Abbottstown acres

Depth to seasonal high water table
About 1.2 feet (14 in) (median where reported); within 18 inches on 98% of acres.
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 0%
Moderately well drained 0%
Somewhat poorly drained 100%
Poorly drained 0%
Very poorly drained 0%
Drainage class across mapped Abbottstown acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Abbottstown acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained0.0%
Moderately well drained0.0%
Somewhat poorly drained100.0%
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 15%
D: very slow infiltration (clayey, shallow or wet) 85%
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 <1%
Hydrologic soil group across mapped Abbottstown acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Abbottstown acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration0.0%
C: slow infiltration14.6%
D: very slow infiltration (clayey, shallow or wet)84.8%
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 drained0.6%

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 Abbottstown (component kind "Series") in SSURGO: 90,194 acres.
Method
Shares are by mapped acres of Abbottstown components. The profile comes from the single largest Abbottstown component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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