LOCATION WAPPINGER          NY+VT
Established Series
Rev. FLG-JWW-WEH
02/2000

WAPPINGER SERIES


The Wappinger series consists of very deep, well drained soils on flood plains. These soils formed in recent alluvium derived from upland areas dominated by slaty or shaly till. Slopes range from 0 to 3 percent. Mean annual temperature is about 50 degrees F., and the mean annual precipitation is about 39 inches.

TAXONOMIC CLASS: Coarse-loamy over sandy or sandy-skeletal, mixed, active, mesic Dystric Fluventic Eutrudepts

TYPICAL PEDON: Wappinger loam in a cultivated field on a 1 percent slope. (Colors are for moist soil unless otherwise noted).

Ap--0 to 9 inches, dark yellowish brown (10YR 3/4) loam; pale brown (10YR 6/3) dry; weak medium granular structure; friable; few fine roots; moderately acid; abrupt smooth boundary. (5 to 12 inches thick).

Bw1--9 to 13 inches, dark yellowish brown (10YR 4/4) loam; weak fine and medium subangular blocky structure; friable; few fine roots; common fine pores; strongly acid; clear smooth boundary.

Bw2--13 to 21 inches, dark yellowish brown (10YR 4/4) loam; weak medium and coarse subangular blocky structure; friable; few fine roots; common fine pores; slightly acid; clear smooth boundary.

Bw3--21 to 33 inches, dark yellowish brown (10YR 4/4) loam with many brownish stains; weak coarser subangular blocky structure; very friable; many fine roots; moderately acid; abrupt wavy boundary. (Combined thickness of the Bw horizons is 13 to 40 inches).

C1--33 to 37 inches, dark brown (10YR 4/3) sandy loam with common fine faint dark yellowish brown (10YR 4/4) and many medium faint brown (10YR 5/3) mottles; massive; very friable; many fine pores; 5 percent rock fragmennts; moderately acid; abrupt wavy boundary. (0 to 4 inches thick).

2C2--37 to 72 inches, dark brown (10YR 4/3) very gravelly sand; single grain; loose; 65 percent rock fragments; moderately acid.

TYPE LOCATION: Dutchess County, New York; Town of LaGrange; about 1/2 mile south of NY Route 55, and 2,475 feet west of Titusville Road. About 300 feet east of Wappingers Creek.

RANGE IN CHARACTERISTICS: The thickness of the solum ranges from 25 to 45 inches and the depth to bedrock is more than 60 inches. Rock fragments, mainly gravel and cobbles, range from 0 to 10 in the solum and upper part of the C horizon and 15 to 70 percent in the 2C horizon. Unless limed, reaction ranges from strongly acid to moderately acid above 20 inches and moderately acid to neutral below 20 inches.

The A horizon has hue of 10YR or 2.5Y, value of 3 or 4, and chroma of 2 through 4. It is silt loam or loam. Structure is weak or moderate, medium or fine granular structure. Consistence is friable or very friable.

The B horizon has hue of 7.5YR through 2.5Y, value of 4 or 5, chroma of 3 or 4. Textures are loam, silt loam, or fine sandy loam. They have weak or moderate, fine to coarse subangular blocky or granular structure. Consistence is friable or very friable. Some pedons have a BC horizon.

The C horizons have hue of 10YR or 2.5Y, value of 4 or 5, chroma of 3 or 4. Mottles are common in some pedons. Texture is sandy loam or fine sandy loam.

The 2C horizon has hues of 10YR and 2.5Y, value of 4 or 5, and chroma of 3 or 4 and may be mottled. Texture is loamy sand or sand in the fine earth fraction. It is massive or single grain. Consistence is very friable or loose.

COMPETING SERIES: There are no other series in the same family.

The Barbour, Comus, Linden, Ondawa, Pope, and Tioga are similar soils in related families. Barbour soils have less than 60 percent base saturation within a depth of 30 inches and have hues redder than 7.5YR in the upper part of the B horizon. Comus, Linden, Ondawa, Pope and Tioga soils all lack a sandy or sandy-skeletal particle size class within a depth of 40 inches. In addition, Comus, Linden, Ondawa, and Pope have less than 60 percent base saturation within a depth of 30 inches.

GEOGRAPHIC SETTING: Wappinger soils are on level or nearly level flood plains with slopes ranging from 0 to 3 percent. They formed in loamy alluvium overlying sandy deposits washed from upland soils formed mainly from shale and slate rocks. The mean annual temperature ranges from 48 to 52 degrees F., mean annual precipitation ranges from 35 to 42 inches; and the frost-free season ranges from 125 to 175 days. The elevation is 50 to 500 feet above sea level.

GEOGRAPHICALLY ASSOCIATED SOILS: The Amenia, Cambridge, Georgia, Pittsfield, Stockbridge, and Venango soils are associated on adjacent higher till plains that are not subject to flooding. Riverhead soils are on nearby outwash terraces. Pawling soils are the moderately well drained members of a drainage sequence with the Wappinger soils.

DRAINAGE AND PERMEABILITY: Well drained. Slow or medium runoff. Permeability is moderate in the solum and moderately rapid or rapid in the substratum.

USE AND VEGETATION: Areas of Wappinger soils are mostly cleared and used for cultivated crops or are idle. Some areas are wooded with red oak, suger maple and yellow popular as common trees.

DISTRIBUTION AND EXTENT: Eastern New York and Vermont. The series is of small extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Amherst, Massachusetts

SERIES ESTABLISHED: Dutchess County, New York, 1976. Named for a town in Dutchess county.

REMARKS: Diagnostic horizons and other features recognized in the typical pedon are:

(1) Ochric Epipedon - the zone from the surface to 9 inches (Ap horizon). (2) Cambic horizon - the zone from 9 to 33 inches (Bw horizons). (3) Dystric Fluventic subgroup - as evidenced by lack of carbonates within 40 inches and an irregular decrease in organic carbon content that is greater than 0.2 percent with a depth of 50 inches.

Soil Interpretation Record NY0252


National Cooperative Soil Survey
U.S.A.