Soil series profile

Everett soil series

Everett is a somewhat excessively drained soil with a very gravelly sandy loam surface, mapped on 199,324 acres in 10 counties in WA. Hydrologic group A.

#1830 by mapped area sandy-skeletal Humic Dystroxerepts (Inceptisols)

Drainage class: Somewhat excessively drained
Hydrologic group: A
Typical topsoil pH: 5.3
Mapped area: 199k

Typical Everett profile

Texture and pH by depth

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 Everett horizons (representative values)
Depth	Texture	pH	Clay	Sand	Organic matter
0–1 in (Oi)	Slightly decomposed plant material	4.5	5%	56%	75%
1–3 in (A)	Very gravelly sandy loam	5.3	5%	60%	5%
3–24 in (Bw)	Very gravelly sandy loam	5.5	5%	60%	3%
24–35 in (C1)	Very gravelly loamy sand	5.5	4%	80%	1%
35–60 in (C2)	Extremely cobbly coarse sand	5.6	2%	90%	0.5%

Representative values from the most extensive Everett map unit (Everett very gravelly sandy loam, 8 to 15 percent slopes, survey area WA633). Other map units of this series vary within the series range.

Stock photo for illustration, not a sample of this soil series. Credit on the Sources & method page.

What this means

What Everett soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Everett soils is strongly acidic: pH 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 97% of mapped Everett acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is very gravelly sandy loam (88% of mapped Everett acres).

100% of mapped Everett acres is excessively or somewhat excessively drained: water moves through fast, so gardens need more frequent watering in dry spells.

For lawns and yards

82% of mapped acres is in hydrologic group A, where water soaks in fast. Lawns there dry out quickly; deeper, less frequent watering and organic matter help.

For a septic system

For conventional septic absorption fields, NRCS rates >99% of the acres in mapped Everett 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 Everett soil is found

Mapped acres

Everett is mapped in Washington.

Counties with the most mapped Everett soil
County	Acres	Share of county land
King County, WA	58,769	4.8%
Thurston County, WA	39,506	7.9%
Pierce County, WA	37,069	3.4%
Mason County, WA	24,504	4.3%
Snohomish County, WA	23,291	3.9%
Whatcom County, WA	8,749	0.8%
Jefferson County, WA	4,446	0.7%
Kitsap County, WA	2,811	1.1%
Skagit County, WA	154	0.0%
Lewis County, WA	25	0.0%

Septic absorption fields

NRCS rating, share of Everett acres

Not limited 0%

Somewhat limited 0%

Very limited >99%

Not rated <1%

Septic tank absorption field rating across mapped Everett acres. Scale 0 to 100% of mapped land.

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Septic tank absorption field rating across mapped Everett acres.
Category	Share of acres
Not limited	0.0%
Somewhat limited	0.0%
Very limited	99.3%
Not rated	0.7%

Drainage, water table and flooding

Share of Everett acres

Depth to seasonal high water table: About 3.3 feet (39 in) (median where reported).
Flooding: Not mapped as flooding on most acres.
Slope: Typically 5–20% (median 10%).
Topsoil organic matter: Median 5%.

Drainage class

Excessively drained 0%

Somewhat excessively drained 100%

Well drained 0%

Moderately well drained 0%

Somewhat poorly drained 0%

Poorly drained 0%

Very poorly drained 0%

Drainage class across mapped Everett acres. Scale 0 to 100% of mapped land.

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Drainage class across mapped Everett acres.
Category	Share of acres
Excessively drained	0.0%
Somewhat excessively drained	100.0%
Well drained	0.0%
Moderately well drained	0.0%
Somewhat poorly drained	0.0%
Poorly drained	0.0%
Very poorly drained	0.0%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) 82%

B: moderate infiltration 4%

C: slow infiltration 0%

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 14%

Hydrologic soil group across mapped Everett acres. Scale 0 to 100% of mapped land.

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Hydrologic soil group across mapped Everett acres.
Category	Share of acres
A: fast infiltration (mostly sandy or gravelly)	82.2%
B: moderate infiltration	3.9%
C: slow infiltration	0.0%
D: very slow infiltration (clayey, shallow or wet)	0.0%
A/D: D as is, A if drained	0.0%
B/D: D as is, B if drained	0.0%
C/D: D as is, C if drained	0.0%
Not rated	13.9%

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 Everett (component kind "Series") in SSURGO: 199,324 acres.
Method: Shares are by mapped acres of Everett components. The profile comes from the single largest Everett component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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