LOCATION NAPLES CREEK NY

Established Series
SEA-MWH-DAS
11/2012

NAPLES CREEK SERIES

The Naples Creek series consists of very deep, somewhat poorly drained soils on floodplains. They formed in nearly level, silty alluvial deposits that occasionally overlie lacustrine sediments. Saturated hydraulic conductivity is moderately low through high throughout the mineral soil. Slope ranges from 0 through 3 percent. Mean annual temperature is 8.8 degrees C (47.8 degrees F) and mean annual precipitation is 88 centimeters (34.6 inches).

TAXONOMIC CLASS: Fine-silty, mixed, active, nonacid, mesic Fluventic Endoaquepts

TYPICAL PEDON: Naples Creek silty clay loam, on a 0 percent slope in a wooded area. (Colors are for moist soil unless otherwise noted.)

Ap -- 0 to 23 centimeters (0 to 9 inches); dark grayish brown (2.5Y 4/2) silty clay loam; light brownish gray (2.5Y 6/2), dry; moderate fine and medium granular structure; friable; common very fine, fine, medium and coarse roots; moderately acid; clear wavy boundary. (15 through 30 cm (6 through 12 inches) thick.)

Bw -- 23 to 41 centimeters (9 to 16 inches); olive brown (2.5Y 4/3) silty clay loam; moderate fine and medium subangular blocky structure; friable; few very fine and fine roots and common medium roots; 15 percent medium and coarse distinct gray (2.5Y 5/1) areas of iron depletion and 15 percent medium and coarse prominent dark yellowish brown (10YR 4/6) masses of iron accumulation; slightly acid; gradual wavy boundary. (15 through 46 cm (6 through 18 inches) thick.)

Bg1 -- 41 to 61 centimeters (16 to 24 inches); 90 percent dark gray (2.5Y 4/1) and 10 percent olive brown (2.5Y 4/3) silty clay loam; moderate fine and medium subangular blocky structure; friable; few fine and medium roots; 20 percent medium and coarse prominent dark yellowish brown (10YR 4/6) masses of iron accumulation; slightly acid; gradual wavy boundary.

Bg2 -- 61 to 183 centimeters (24 to 72 inches); 90 percent gray (5Y 5/1) and 10 percent light olive brown (2.5Y 5/3) silty clay loam; moderate medium and coarse subangular blocky structure; firm; 25 percent medium and coarse prominent yellowish brown (10YR 5/6) masses of iron accumulation and 5 percent medium prominent olive (5Y 5/6) masses of iron accumulation; slightly acid. (Combined thickness of the Bg horizon is 30 through 168 cm (12 through 66 inches).)

TYPE LOCATION: Yates County, New York, Town of Italy. Approximately 0.22 miles North of Italy Valley Rd, and 0.86 miles WSW of the intersection of Phelps Rd. and Italy Valley Road. USGS Potter, NY topographic quadrangle; Latitude 42 degrees, 40 minutes, 41.95 seconds N and Longitude 77 degrees, 14 minutes, 31.88 seconds W, NAD 1983.

RANGE IN CHARACTERISTICS: Solum thickness ranges from 61.0 through 198.1 cm (24 through 78 inches). Rock fragments generally are less than 5 percent throughout. Depth to bedrock is more than 152 centimeters (60 inches). Reaction ranges from strongly acid through moderately alkaline. Some pedons may have carbonates below 102 centimeters (40 inches).

The Ap or A horizon has hue of 10YR through 5Y, value of 3 through 5, and chroma of 2 or 3. Texture is silty clay loam, silt loam, or very fine sandy loam.

The Bw horizon has hue of 10YR through 5 Y, value of 4 or 5, and chroma of 3 through 5. The texture is silty clay loam, silt loam, or very fine sandy loam. Structure is fine or medium subangular blocky or granular.

The Bg horizon has hue of 10YR through 5Y, value of 4 through 6, and chroma of 1 through 3. The texture is silty clay loam, silt loam, very fine sandy loam, or sandy loam. Structure is subangular blocky or granular.

Some pedons have a BC or C with colors and textures similar to the B horizon. In areas where this soil overlies lacustrine deposits, textures in the BC or C horizon may range to silty clay, but the weighted average of clay in the particle size control section is from 18 through 34 percent.

COMPETING SERIES: The Newark series is the only soil in the same family. Newark soils are formed from alluvial materials derived from residual soils, not till.

The Holderton and Wakeville series are similar soils in related families. Holderton soils have a coarse-loamy particle-size control section. Wakeville soils have a coarse-silty particle-size control section.

GEOGRAPHIC SETTING: Naples Creek soils are level and nearly level soils on flood plains along low gradient streams. Slope ranges from 0 through 3 percent. The soils formed in recent alluvium derived from glaciated uplands predominantly of shale, siltstone and limestone. In some valleys the silty alluvium overlies lacustrine sediments. Mean annual precipitation ranges from 79 through 112 centimeters (31 through 44 inches), mean annual air temperature ranges from 7.3 degrees through 9.1 degrees C (45 degrees through 48.4 degrees F), and growing season ranges from 107 through 171 days.

GEOGRAPHICALLY ASSOCIATED SOILS: Naples Creek soils are the somewhat poorly drained member of a drainage sequence which includes the well drained Geneseo, moderately well drained Hemlock, and poorly and very poorly drained Wayland soils. The Ontario soils are on nearby till mantled uplands, the Palmyra soils are on nearby outwash deposits, and the Schoharie and Odesssa soils are on nearby glacial lacustrine deposits. Guyanoga (T) soils are located on higher alluvial fan landscapes adjacent to the Naples Creek soils.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Somewhat poorly drained. Saturated hydraulic conductivity is moderately low through high throughout the mineral soil. These soils are subject to occasional or frequent flooding.

USE AND VEGETATION: Most areas of this soil are in, corn, small grains, hay and pasture. Native vegetation is mixed hardwoods including silver maple, cottonwood, green ash, and sycamore.

DISTRIBUTION AND EXTENT: The Ontario-Erie Plain and Great Lakes Region and the Glaciated Allegheny Plateau and Catskill Mountains Region. MLRA's 101 and 140. The soils are of small extent.

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

SERIES ESTABLISHED: Yates County, New York 2012. Part of the Ontario-Yates project.

REMARKS: The Naples Creek series was set up to cover the fine-silty somewhat poorly drained floodplain soils not represented by any other series in MLRA's 101 and 140.

Diagnostic horizons and features recognized in the typical pedon are:
(1.) Ochric epipedon - the zone from 0 through 23 centimeters (0.0 through 9.1 inches) (Ap horizon).
(2.) Cambic epipedon - the zone from 23 through 183 centimeters (23 through 72 inches) (Bw, Bg1, and Bg2 horizons).
(3.) Udic soil moisture regime.
(4.) Pedon originally described in English units, then converted to metric units.

ADDITIONAL DATA: Characterization data for the typical pedon is available through the NSSC lab, sample number S10NY123011.

National Cooperative Soil Survey
U.S.A.