LOCATION PAINESVILLE OH PAEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, active, nonacid, mesic Aeric Epiaquepts
TYPICAL PEDON: Painesville fine sandy loam, on a convex, 1 percent slope in mixed hardwoods at an elevation of about 650 feet above msl. (Colors are for moist soil unless otherwise noted.)
Ap-- 0 to 9 inches; dark grayish brown (10YR 4/2) fine sandy loam, gray (10YR 6/1) dry; moderate fine and medium granular structure; friable; many very fine to medium and common coarse roots throughout; very strongly acid; abrupt smooth boundary. (6 to 10 inches thick.)
Bg-- 9 to 15 inches; light brownish gray (10YR 6/2) fine sandy loam; weak fine and medium subangular blocky structure; friable; many very fine to medium and common coarse roots throughout; common prominent dark grayish brown (10YR 4/2) organic coats in root channels; common medium and coarse prominent yellowish brown (10YR 5/6) and common fine and medium distinct brown (7.5YR 4/4) masses of iron accumulation in the matrix; very strongly acid; clear wavy boundary. (4 to 8 inches thick.)
Bw1-- 15 to 22 inches; yellowish brown (10YR 5/4) loamy fine sand; weak coarse subangular blocky structure; friable; common very fine to medium roots throughout; few prominent dark grayish brown (10YR 4/2) organic coats in root channels; many medium and coarse distinct light brownish gray (10YR 6/2) areas of iron depletion in the matrix; common fine and medium faint brown (7.5YR 4/4) and common medium and coarse distinct yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; about 2 percent rock fragments; strongly acid; clear wavy boundary.
Bw2-- 22 to 30 inches; dark yellowish brown (10YR 4/6) channery fine sandy loam; weak coarse subangular blocky structure; friable; few very fine and fine roots throughout; many medium and coarse prominent light brownish gray (10YR 6/2) areas of iron depletion in the matrix; common medium faint yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; about 15 percent rock fragments; strongly acid; clear irregular boundary. (Combined thickness of the Bw horizons is 15 to 30 inches.)
2Bw3-- 30 to 43 inches; yellowish brown (10YR 5/4) silt loam; weak very coarse prismatic structure; firm; few very fine roots throughout; many distinct gray (N 6/0) iron-depleted coatings on faces of peds; many medium and coarse prominent gray (10YR 6/1) areas of iron depletion in the matrix; common fine and medium distinct yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; common fine and medium black (N 2/0) masses of iron-manganese oxide accumulation in the matrix; about 12 percent rock fragments; slightly acid; clear wavy boundary.
2Bw4-- 43 to 51 inches; dark yellowish brown (10YR 4/6) silt loam; weak very coarse prismatic structure; firm; common prominent gray (N 6/0) iron-depleted coatings on vertical faces of peds; many medium and coarse prominent gray (10YR 6/1) areas of iron depletion in the matrix; common fine and medium faint yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; common fine and medium black (N 2/0) masses of iron-manganese oxide accumulation in the matrix; about 12 percent rock fragments; slightly acid; clear wavy boundary. (Combined thickness of the 2B horizons is 8 to 24 inches.)
2C1-- 51 to 65 inches; pale brown (10YR 6/3) silt loam; massive; firm; few prominent gray (N 6/0) iron-depleted coatings on vertical partings; many medium and coarse distinct gray (10YR 6/1) areas of iron depletion in the matrix; common fine and medium prominent yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; common fine and medium black (N 2/0) masses of iron-manganese oxide accumulation in the matrix; about 12 percent rock fragments; neutral; clear wavy boundary.
2C2--65 to 80 inches; pale brown (10YR 6/3) silt loam; common fine and medium distinct gray (10YR 6/1), faint yellowish brown (10YR 5/4), and prominent strong brown (7.5YR 5/6) mottles; massive; firm; common fine and medium prominent black (N 2/0) masses of iron-manganese oxide accumulation in the matrix; about 5 percent rock fragments; strongly effervescent; slightly alkaline.
TYPE LOCATION: Painesville fine sandy loam, 0 to 2 percent slopes, about 2 miles northeast of Geneva, in Geneva Township, 1,950 feet north of the intersection of U.S. Route 20 and Meyers Road (County Road 9), then 525 feet east. T. 12 N., R. 5 W. USGS Geneva, OH topographic quadrangle; Latitude 41 degrees, 49 minutes, 12 seconds N. and Longitude 80 degrees, 54 minutes, 56 seconds W., NAD 1927.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 33 through 60 inches and extends into the underlying till. The thickness of the overlying glaciolacustrine material ranges from 28 through 48 inches. Depth to carbonates ranges from 33 through 75 inches.
The Ap horizon has hue of 10YR or 2.5YR, value of 3 or 4, and chroma of 1 through 3. Texture is fine sandy loam. Structure is weak or moderate, fine through coarse, granular. Rock fragments range from 0 through 5 percent. Reaction is very strongly acid to moderately acid. Areas that have been limed may be slightly acid or neutral.
The Bg horizon has hue of 10YR, 2.5Y or neutral, value of 5 or 6, and chroma of 0 through 2. Texture is loam, sandy loam, fine sandy loam, or loamy fine sand. Structure is weak or moderate, fine through coarse, subangular blocky, or single grain. Rock fragments range from 0 through 5 percent. Reaction is very strongly acid through moderately acid.
The Bw horizon has hue of 10YR or 2.5Y, value of 4 through 6, and chroma of 3 through 6. Texture is loam, sandy loam, fine sandy loam, loamy fine sand, or their gravelly analogues. Some pedons have thin horizons of sandy clay loam, loamy sand, fine sand, or silt loam. Structure is weak or moderate, fine through coarse, subangular blocky, or single grain. Rock fragments range from 0 through 20 percent. Reaction is very strongly acid through slightly acid.
The 2Bw horizon has hue of 10YR or 2.5Y, value of 4 through 6, and chroma of 3 through 6. Texture is silt loam, silty clay loam, or their gravelly analogues. Some pedons have thin, discontinuous strata of fine sandy loam, sandy loam, or loam. Structure is weak or moderate, fine through coarse, subangular blocky, or weak or moderate, coarse or very coarse, prismatic; these structures part to weak thin platy in some pedons. Rock fragments range from 2 through 20 percent. Reaction is moderately acid through slightly alkaline.
Some pedons have a 2BC horizon with hue of 10YR or 2.5Y, value of 4 through 6, and chroma of 3 or 4. Texture is silt loam, silty clay loam, or their gravelly analogues. Some pedons have thin, discontinuous strata of fine sandy loam, sandy loam, or loam. Structure is weak, medium through very coarse, subangular blocky, or weak, coarse or very coarse, prismatic; these structures part to weak thin platy in some pedons. Rock fragments range from 2 through 20 percent. Reaction is moderately acid through slightly alkaline.
The 2C horizon has hue of 10YR or 2.5Y, or is gleyed, value of 4 through 6, and chroma of 1 through 4. Texture is silt loam, silty clay loam, or their gravelly analogues. Rock fragments range from 2 through 20 percent. Reaction is slightly acid through moderately alkaline.
COMPETING SERIES: These are the Punsit and Sun series. The Punsit and Sun soils formed in till and have a compact dense (Cd) substratum within a depth of 60 inches. In addition, the Sun soils formed in till and have 20 to 50 percent rock fragments in the substratum.
GEOGRAPHIC SETTING: The Painesville soils are on broad convex flats or slight rises on lake plains. The soils formed in loamy and sandy glaciolacustrine material and in the underlying loamy Wisconsinan age till. Slope ranges from 0 through 3 percent. Elevations are 570 through 860 feet above msl. Mean annual precipitation ranges from 29 through 39 inches, and mean annual temperature ranges from 49 through 52 degrees F. The frost free period is 160 through 198 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Conneaut, Harbor, Kingsville, Otisville, Red Hook, Stafford and Tyner soils. Conneaut soils have 20 to 35 percent clay in the subsoil and are on similar landscape positions. Harbor soils are moderately well drained and are on higher landscape positions. Kingsville soils are very poorly drained and are on lower landscape positions. Otisville and Tyner soils are excessively drained and are on adjacent higher beach ridge positions. Red Hook soils formed in outwash and are on nearby outwash plains. Stafford soils formed in glaciofluvial sands and are on nearby landscapes.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Somewhat poorly drained. The potential for surface runoff is high to very high. Saturated hydraulic conductivity is moderately high to high in the glaciolacustrine material and moderately low or moderately high in the underlying till. Depth to the top of an intermittent perched seasonal high water table is 0.5 to 1.0 foot from November to May in normal years.
USE AND VEGETATION: Most areas of this soil are woodland or abandoned cropland reverting to woodland. Some areas are used for nursery crops or pasture and hayland. The use of this soil for urban development is increasing. Native vegetation is hardwood forest.
DISTRIBUTION AND EXTENT: Northeast Ohio and Northwest Pennsylvania. MLRA 139. The series is moderately extensive; about 17,000 acres.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Amherst, Massachusetts.
SERIES ESTABLISHED: Lake County, Ohio, 1925.
REMARKS: The taxonomic classification changed from Fine-loamy, mixed, nonacid, mesic Aeric Epiaquepts to Coarse-loamy, mixed, active, nonacid, mesic Aeric Epiaquepts. This is due to analysis of all laboratory data on the particle-size control sections of Painesville pedons and to updates contained in the 8th Edition of Keys to Soil Taxonomy. Competing series have changed as similar soils were reclassified.
Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - from the surface to a depth of 9 inches (Ap horizon).
Aquic conditions - from a depth of 9 to 80 inches.
Cambic horizon - from a depth of 9 to 51 inches (Bg, Bw1, Bw2, 2Bw1 and 2Bw2 horizons).
ADDITIONAL DATA: Refer to sample numbers 13735 to 13740 for textural data on the typical pedon, from Ashtabula County, Ohio, and to pedon LK-26 for characterization data, sample numbers 20470 to 20476, from Lake County, Ohio; samples analyzed by the Ohio State University Soil Characterization Laboratory, Columbus, Ohio.