Soil series profile

Brayton soil series

Brayton is a poorly drained soil with a muck surface, mapped on 536,893 acres in 33 counties across 5 states. Hydrologic group D.

#498 by mapped area loamy Aeric Endoaquepts (Inceptisols)

Drainage class
Poorly drained
96% of mapped acres
Hydrologic group
D
80% of mapped acres
Typical topsoil pH
4.0
extremely acidic · range 4.0–4.8
Mapped area
537k
acres in 33 counties, 5 states

Typical Brayton profile

Texture and pH by depth

Typical Brayton soil profile by depth 0 in 20 in 40 in 60 in 0–5 in · Oa · pH 4.0 Muck 5–10 in · A · pH 4.0 · 9% clay Fine sandy loam 10–23 in · Bg · pH 5.6 · 8% clay Fine sandy loam 23–65 in · Cd · pH 6.3 · 8% clay Fine sandy 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 Brayton horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–5 in (Oa) Muck 4.0 Not reported Not reported 53%
5–10 in (A) Fine sandy loam 4.0 9% 54% 9%
10–23 in (Bg) Fine sandy loam 5.6 8% 60% 2%
23–65 in (Cd) Fine sandy loam 6.3 8% 60% 0.5%

Representative values from the most extensive Brayton map unit (Brayton-Peacham association, 0 to 8 percent slopes, extremely stony, survey area ME622). 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 Brayton soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Brayton soils is extremely acidic: pH 4.0 (most land between 4.0 and 4.8). 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 (65% of mapped Brayton 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 (65% of mapped Brayton acres).

100% of mapped Brayton 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 >99% 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 >99% of the acres in mapped Brayton 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 Brayton soil is found

Mapped acres

Brayton is mapped in Maine, New York, Vermont, New Hampshire and Massachusetts.

Counties with the most mapped Brayton soil
County Acres Share of county land
Piscataquis County, ME 95,012 3.8%
Hancock County, ME 89,508 9.0%
Washington County, ME 82,161 5.2%
Franklin County, ME 48,663 4.5%
Waldo County, ME 38,634 8.3%
York County, ME 32,269 5.0%
Penobscot County, ME 25,071 1.2%
Oxford County, ME 24,745 1.9%
Franklin County, NY 18,313 1.8%
Aroostook County, ME 15,246 0.4%
Knox County, ME 13,699 5.8%
Lincoln County, ME 12,909 4.5%
Somerset County, ME 10,358 0.4%
Rensselaer County, NY 8,839 2.1%
Cumberland County, ME 7,935 1.4%
Rutland County, VT 4,252 0.7%
Windham County, VT 2,674 0.5%
Bennington County, VT 2,360 0.5%
Coos County, NH 1,188 0.1%
Berkshire County, MA 1,026 0.2%
Hillsborough County, NH 597 0.1%
Worcester County, MA 451 0.0%
Washington County, VT 206 0.0%
Grafton County, NH 189 0.0%
Sullivan County, NH 168 0.0%
Carroll County, NH 119 0.0%
Cheshire County, NH 94 0.0%
Kennebec County, ME 77 0.0%
Merrimack County, NH 47 0.0%
Lamoille County, VT 29 0.0%
Belknap County, NH 27 0.0%
Windsor County, VT 25 0.0%
Chittenden County, VT 4 0.0%

Septic absorption fields

NRCS rating, share of Brayton acres

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

Drainage, water table and flooding

Share of Brayton acres

Depth to seasonal high water table
About 6 inches (median where reported); within 18 inches on >99% of acres.
Flooding
Not mapped as flooding on most acres.
Slope
Typically 2–9% (median 4%).
Topsoil organic matter
Median 53%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 0%
Moderately well drained 0%
Somewhat poorly drained 4%
Poorly drained 96%
Very poorly drained 0%
Drainage class across mapped Brayton acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Brayton acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained0.0%
Moderately well drained0.0%
Somewhat poorly drained4.1%
Poorly drained95.9%
Very poorly drained0.0%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) 0%
B: moderate infiltration 0%
C: slow infiltration 0%
D: very slow infiltration (clayey, shallow or wet) 80%
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 20%
Not rated <1%
Hydrologic soil group across mapped Brayton acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Brayton acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration0.0%
C: slow infiltration0.0%
D: very slow infiltration (clayey, shallow or wet)80.1%
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 drained19.6%
Not rated0.3%

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 Brayton (component kind "Series") in SSURGO: 536,893 acres.
Method
Shares are by mapped acres of Brayton components. The profile comes from the single largest Brayton component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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