LOCATION HATBORO PA+DE MD NC TN VAEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, active, nonacid, mesic Fluvaquentic Endoaquepts
TYPICAL PEDON: Hatboro silt loam on 0 to 3 percent slopes-woods. (Colors are for moist interior soil unless otherwise noted.)
A--0 to 9 inches; dark grayish brown (10YR 4/2) silt loam; weak fine granular structure; friable, slightly sticky, slightly plastic; many fine and medium roots and common coarse roots throughout; common coarse pores; few fine faint yellowish brown (10YR 5/4) masses of oxidized iron on faces of peds; 4 percent angular channers; moderately acid; abrupt smooth boundary. (8 to 12 inches thick)
Bg1--9 to 27 inches; gray (10YR 5/1) silt loam; weak medium subangular blocky structure; friable, slightly sticky, slightly plastic; common fine, medium and few coarse roots throughout; few coarse pores; common medium distinct dark yellowish brown (10YR 4/4) masses of oxidized iron on horizontal faces of peds and common medium distinct grayish brown (2.5Y 5/2) iron depletions on faces of peds; common mica flakes; 2 percent angular channers and 5 percent rounded gravel; moderately acid; clear smooth boundary.
Bg2--27 to 44 inches; grayish brown (2.5Y 5/2) silt loam; weak medium subangular blocky structure; firm, slightly sticky, slightly plastic; common medium and coarse roots throughout; few medium prominent gray (N 6/0) manganese masses on vertical faces of peds and common medium distinct strong brown (7.5YR 5/6) masses of oxidized iron on faces of peds; common mica flakes; 4 percent angular channers and 6 percent rounded gravel; moderately acid; clear smooth boundary. (Combined thickness of the Bg horizon is 28 to 48 inches)
Cg1--44 to 56 inches; light brownish gray (10YR 6/2) sandy clay loam; massive; friable, slightly sticky, slightly plastic; common medium distinct yellowish brown (10YR 5/8) masses of oxidized iron throughout and common medium faint gray (10YR 5/1) iron depletions throughout; few mica flakes; 2 percent angular channers and 10 percent rounded gravel; strongly acid; clear smooth boundary.
Cg2--56 to 70 inches; gray (10YR 6/1) gravelly sandy loam; structureless single grain; friable, slightly sticky, slightly plastic; common medium distinct strong brown (7.5YR 5/6) masses of oxidized iron throughout and common medium faint grayish brown (10YR 5/2) iron depletions throughout; 2 percent angular channers and 20 percent rounded gravel; strongly acid; clear smooth boundary.
Cg3--70 to 78 inches; light brownish gray (10YR 6/2) stratified gravelly sand; structureless single grain; friable, nonsticky, nonplastic; medium distinct gray (10YR 5/1) iron depletions throughout; 3 percent angular channers and 25 percent subrounded gravel; moderately acid.
TYPE LOCATION: Montgomery County, Pennsylvania; Upper Moreland Township, 1 mile south of Hatboro along Pennypack Creek, 1600 feet north of junction of Pennypack Road and Creek Road, 300 feet southwest of Business office, 20 feet east of Pennypack Creek in woods. Hatboro Quad; latitude. 40 degrees, 9 minutes, 17.9 seconds North, longitude. 75 degrees, 4 minutes, 34.1 seconds West
RANGE IN CHARACTERISTICS: Solum thickness ranges from 20 to 60 inches. Depth to bedrock ranges from 5 to 10 feet or more. Organic carbon decreases irregularly with depth or is greater than 0.2 percent directly above any strongly contrasting C horizon. The depth to strongly contrasting sand and gravel is more than 40 inches or the transition is greater than 5 inches. Content of gravel ranges from 0 to 10 percent in the solum and from 0 to 80 percent in the C horizon. Mica flakes are common in the solum, and the C horizon contains thin lenses of mica. Reaction ranges from very strongly acid through neutral to a depth of 30 inches and from moderately acid through slightly acid below 30 inches. Depth to low chroma redox depletions is 0 to 10 inches.
The Ap or A horizon has hue of 10YR or 2.5Y, value of 3 or 4, and chroma of 1 through 4. It is sandy loam, loam, silt loam or fine sandy loam.
The B horizon has hue of 10YR through 5Y, value of 4 through 7, and chroma of 1 or 2, or is neutral with value of 4 through 7. Texture is sandy clay loam, clay loam, silty clay loam, or silt loam, loam, or fine sandy loam. Structure is weak, fine or medium subangular blocky.
The C horizon has hue of 10YR through 5Y value of 4 through 7, and chroma of 1 or 2, or is neutral with value of 4 through 7. Fine-earth texture is sandy clay loam, sandy loam, clay loam, silty clay loam, silt loam, fine sandy loam, or sand in the upper part and contains thin lenses of primarily mica flakes. The lower part is stratified sand, silt and clay sediments and gravel.
COMPETING SERIES: Holly soils are in the same family. Holly soils have solum that do not contain appreciable mica and that range between 20 to 44 inches thick.
GEOGRAPHIC SETTING: Hatboro soils are on nearly level flood plains. Slope gradients are between 0 and 3 percent. They formed in alluvium largely from schist, gneiss and other metamorphic and crystalline rocks. Climate is humid and temperate; mean annual precipitation ranges from 40 to 44 inches; mean annual temperature ranges from 52 to 55 degrees F.; the growing season ranges from 170 to 190 days.
GEOGRAPHICALLY ASSOCIATED SOILS: Comus, Codorus and competing series Holly are on associated flood plains. Baile, Brandywine, Chester, Glenelg, Glenville, Manor , Mt. Airy and Rowland soils are on the uplands nearby. Brandywine, Chester, Comus, Glenelg, Manor and Mt. Airy are all well drained soils. Baile soils have an argillic horizon. Glenville soils are moderately well drained and somewhat poorly drained and have a fragipan. Holly soils have sola that do not contain appreciable mica and that range between 20 to 44 inches thick. The Rowland series consists of very deep, moderately well and somewhat poorly drained soils formed in alluvial sediments weathered from red and brown shale, sandstone, and conglomerate.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Poorly drained. Saturated hydraulic conductivity is moderately high to high. Index surface runoff class is high or very high. These soils are subject to periodic stream overflow, which usually occurs during the winter and spring months.
USE AND VEGETATION: About 50 percent of the Hatboro soils are in pasture, 35 percent in woodland, and the remainder in cropland. Woodland areas are in mixed hardwoods.
DISTRIBUTION AND EXTENT: Southeastern Pennsylvania, northern Delaware, Maryland, North Carolina, northeast Tennessee and Virginia. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Montgomery County, Pennsylvania, 1965.
REMARKS: Hatboro soils were formerly included with the Wehadkee series.
The 2/99 revision places this soil in an active CEC activity class based on similar soils. The 7/2001 revision changes the classification from Typic
Fluvaquents to Fluvaquentic Endoaquepts to reflect changes to cambic horizon criteria in Soil Taxonomy. Competing series were also updated. The 5/2003 revision expands the solum thickness from 40 to 60 inches to 30 to 60 inches to facilitate correlation activities in the MO14 region. The 9/2005 revision adds fine sandy loam to the RIC of the A, B and C horizons and changes horizon nomenclature. Competing series was also updated. Revision 1/2006 JHK-DHK: Pedon Description and type location updated. Revision 9/2008 Description and type location as well as competing and geographically associated soils updated.
Diagnostic horizons and features recognized in this pedon are:
a. Ochric epipedon - the zone from 0 to 9 inches (Ap horizon).
b. Cambic horizon - the zone from 9 to 44 inches (Bg1 and Bg2 horizons).
MLRA=130, 136, 148, 149A
Revised: 02/1999-EJM, EAW, MKC; 07/2001-JAK, DHK; 05/2003-JAK, DHK; 09/2005-JAK, DHK, 1/2006 JHK-DHK