LOCATION OLINVILLE NY
Established Series
LR-RKS-JTI
01/2014
OLINVILLE SERIES
The Olinville Series consists of very deep, moderately well drained soils that have formed in a shallow to moderately deep loamy mantle of human transported soil materials over alluvium. They are nearly level soils on anthropogenically altered floodplains subject to occasional flooding. Saturated hydraulic conductivity is high. Slope ranges from 0 to 3 percent. Mean annual temperature is about 13 degrees Celsius, and mean annual precipitation is about 1196 millimeters.
TAXONOMIC CLASS: Coarse-loamy, mixed, active, mesic Oxyaquic Eutrudepts
TYPICAL PEDON: Olinville loam on an anthropogenically modified flood plain, 0 percent slope.
^A1-- 0 to 6 centimeters; very dark brown (10YR 2/2) loam, dark grayish brown (10YR 4/2) dry; strong fine and medium granular structure; friable; common fine roots; slightly acid (pH 6.5); clear smooth boundary.
^A2-- 6 to 25 centimeters; very dark grayish brown (10YR 3/2) loam, yellowish brown (10YR 5/4) dry; moderate fine and medium granular structure; friable; common fine, common medium, and common coarse roots; 2 percent gravel; slightly acid (pH 6.3); clear wavy boundary. (Combined thickness of the ^A horizons is 8 to 25 cm.)
^Bwu-- 25 to 51 centimeters; dark yellowish brown (10YR 4/6) sandy loam; moderate thick platy structure; friable; few medium and few coarse roots; 3 percent gravel-sized coal fragments, 7 percent gneissic cobbles; slightly acid (pH 6.4); common (4 percent) medium prominent dark reddish brown (5YR 3/4) iron concentrations on ped faces; clear smooth boundary. (8 to 23 cm thick)
2Ab-- 51 to 61 centimeters; dark grayish brown (10YR 4/2) silt loam; moderate medium granular structure; friable (slightly firm in place); slightly acid (pH 6.3); common (13 percent) medium prominent dark reddish brown (5YR 3/4) iron concentrations; clear wavy boundary. (8 to 30 cm thick)
2ABb-- 61 to 71 centimeters; 70 percent dark grayish brown (10YR 4/2) and 30 percent dark yellowish brown (10YR 4/4) silt loam; weak medium subangular blocky and moderate medium granular structure; friable; slightly acid (pH 6.5); clear wavy boundary.
2A'b-- 71 to 84 centimeters; very dark grayish brown (10YR 3/2) loam; moderate medium granular structure; friable; neutral (pH 6.7); common (13 percent) medium distinct dark yellowish brown (10YR 4/6) iron concentrations; clear wavy boundary.
2Bb-- 84 to 99 centimeters; brown (10YR 4/3) fine sandy loam; weak medium subangular blocky structure; friable; common (16 percent) dark grayish brown (10YR 4/2) iron depletions and common (9 percent) fine prominent strong brown (7.5YR 4/6) iron concentrations; neutral (pH 6.7); clear wavy boundary. (15 to 53 cm thick)
2BC-- 99 to 152 centimeters; 75 percent dark yellowish brown (10YR 4/6) and 25 percent dark brown (10YR 3/3) fine sandy loam; weak medium subangular blocky structure; friable; slightly acid (pH 6.2).
TYPE LOCATION: Bronx County, NY; in Bronx River Forest, 470 feet due west from NW corner of the intersection at Bronx Park East and Rosewood Avenues, 620 feet north of the Burke Ave Bridge; USGS Flushing, NY topographic quadrangle, Latitude 40 degrees, 52 minutes, 24 seconds N., Longitude 73 degrees, 52 minutes, 20 seconds W.; NAD 1983.
RANGE IN CHARACTERISTICS: Thickness of the human transported fill materials ranges from 25 to 100 centimeters. The human transported fill may be any natural material ranging from till and outwash to alluvium, usually from a local source. Artifact content in the fill is less than 10 percent by volume. Rock fragments range from 0 to 35 percent in the fill material, and 0 to 15 percent in the natural alluvium. Iron depletions with chroma of two or less are typically found between the depths of 75 and 100 centimeters from the mineral soil surface. Reaction ranges from strongly acid to neutral.
The ^A horizon has hue of 7.5YR to 2.5Y, value of 2 o 4, and chroma of 1 to 3. Texture is silt loam, loam, fine sandy loam or sandy loam. It has granular or subangular blocky structure and is friable, although compacted areas may have platy structure and/or a firm consistence.
The ^Bw, ^BC, or ^C horizons have hue of 7.5YR to 2.5Y, value of 3 to 6, and chroma of 2 to 6. The texture is dominantly sandy loam, but fine sandy loam, loam and silt loam may also occur. Structure is subangular blocky, but may be platy in areas where heavy machinery has been used to spread fill materials. Consistence is friable to firm.
Most pedons have a 2Ab horizon. It has hue of 7.5YR to 2.5Y, value of 2 to 4, and chroma of 1 to 3. Texture is silt loam, loam, fine sandy loam or sandy loam. It has granular or subangular blocky structure or it is massive. Consistence friable or firm.
Some pedons have 2Bb horizons with hue of 10YR or 2.5Y, value of 2 o 6, and chroma of 2 to 6. The texture is similar to the 2Ab. Structure is subangular blocky or it is massive. Consistence is friable or firm.
The buried 2C horizon, where present, has hue of 10YR or 2.5Y, value 3 to 7, and chroma of 1 to 6. Texture ranges from silt loam to sand. It is massive or single grain. Consistence is friable or very friable.
COMPETING SERIES: There are no soils in this family.
GEOGRAPHIC SETTING: Olinville soils are located on nearly level floodplains that have been altered by anthopogenic activity. These soils are formed in transported soil material, with a natural subsoil that is either a buried pedon or shows evidence of being a truncated soil. The cap of transported soil material is relatively clean of human artifacts, with less than 10 percent by volume fragments of brick, concrete, glass, plastic, metal, coal slag, or other manufactured materials. The transported soil material is predominantly from locally excavated upland materials such as till or outwash deposits. Slope ranges from 0 to 3 percent. Mean annual precipitation ranges from 1021 to 1325 millimeters. Mean annual temperature ranges from 8 to 17 degrees Celsius.
GEOGRAPHICALLY ASSOCIATED SOILS: Associated floodplain soils include
Suncook,
Pootatuck,
Holderton, and
Limerick, all with less than 25 centimeters of fill material on the surface. Nearby upland soils include
Greenbelt and
Centralpark, both formed in greater than 25 centimeters of fill, and
Charlton,
Chatfield, and
Hollis, all formed in till from gneiss, schist, and granite with less than 25 centimeters of fill on the surface.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Moderately well drained. Most areas flood occasionally. Saturated hydraulic conductivity is high.
USE AND VEGETATION: These soils are used for active and passive recreation, as natural areas, and also serve as important sites for storm water capture. Most of the area is wooded, usually with sweetgum, sycamore, red and black oak, red maple, and American beech. Herbaceous vegetation includes common weeds such as Japanese knotweed, raspberry, garlic mustard, honeysuckle and mugwort.
DISTRIBUTION AND EXTENT: These soils occur on modified landscapes in and near major urbanized areas of the Northeast in MLRA 144A. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Amherst, Massachusetts.
SERIES ESTABLISHED: Bronx County, New York, 2014. Series proposed in Bronx County, New York 2006. The series is named after a neighborhood along the Bronx River.
REMARKS: Olinville soils are mapped in the soil survey areas of the Bronx River Watershed, Bronx County NY and the initial survey areas of Bronx County, NY. The soils are of minimal extent (less than 1,000 acres), however they are of unique importance to users of the soil surveys.
The recent human transported mantle of these soils may have colors that meet the required characteristic of mollic or umbric epipedons, however the concept of an epipedon requires that sufficient time be given to erase or act on such transient marks of deposition.
Diagnostic horizons and features recognized in this pedon include:
1. Umbric epipedon - the zone from 0 to 10 inches (0 to 25 centimeters).
2. Cambic horizon - from 25 to 50 centimeters.
3. Buried soil from the 2Ab horizon and below.
4. Oxyaquic conditions - redoximorphic depletions 84 to 100 centimeters.
ADDITIONAL DATA: Complete characterization data collected as pedon S2011NY005001. Pedon analyzed by the NSSL, Lincoln, NE.
National Cooperative Soil Survey
U.S.A.