LOCATION PRICES CREEK            NC

Established Series
ARW
10/2024

PRICES CREEK SERIES

MLRA--153A, 153B
Soil Survey Regional Office (SSRO) Responsible--Special Projects
Depth Class--Very deep
Drainage Class--Subaqueous (permanently submersed)
Saturated Hydraulic Conductivity--Moderately low to moderately high
Parent Material--Fine-loamy estuarine deposits
Soil Organic Carbon Stock to 200 centimeters--33.8 kg m-2
Slope--0 to 2 percent
Mean Annual Air Temperature--18 degrees C (64 degrees F)
Mean Annual Water Temperature--21 degrees C (70 degrees F)

TAXONOMIC CLASS: Fine-loamy, mixed, active, nonacid, thermic Grossic Hydrowassents

TYPICAL PEDON: Prices Creek loam in an estuarine tidal stream under 1.2 meters of brackish water (Colors are for moist soil unless otherwise stated; electrical conductivity is 1:5 by volume solution mixture unless otherwise stated).

Cseg1--0 to 54 centimeters (0 to 21 inches); dark greenish gray (10Y 3/1) loam; structureless, massive; moderately sticky, nonplastic; moderately fluid; 4 percent shell fragments; slight sulfurous odor; positive color reaction with 3% hydrogen peroxide; moderately effervescent with 30% hydrogen peroxide; strongly saline (6.5 dS m-1); moderately alkaline (pH 8.0), moderately alkaline (pH 8.2) oxidized; 9.9 kg soil organic carbon m-3; clear boundary.

Cseg2--54 to 147 centimeters (21 to 58 inches); black (N 2.5/) loam; structureless, massive; slightly sticky, nonplastic; moderately fluid; slight sulfurous odor; positive color reaction with 3% hydrogen peroxide; moderately effervescent with 30% hydrogen peroxide; strongly saline (4.9 dS m-1); moderately alkaline (pH 8.1), slightly alkaline (pH 7.8) oxidized; 17.1 kg soil organic carbon m-3; clear boundary.

Cseg3--147 to 195 centimeters (58 to 77 inches); black (N 2.5/) sandy clay loam; structureless, massive; slightly sticky, nonplastic; moderately fluid; slight sulfurous odor; positive color reaction with 3% hydrogen peroxide; moderately effervescent with 30% hydrogen peroxide; strongly saline (4.9 dS m-1); slightly alkaline (pH 7.8), moderately alkaline (pH 8.0) oxidized; 6.9 kg soil organic carbon m-3.

TYPE LOCATION: Brunswick County, North Carolina; Cape Fear River; 1.24 miles west of the end of South Fort Fisher Boulevard, 1.61 miles northeast of the end of Shepard Road Southeast, and 2.18 miles east by southeast of the end of Bethel Road Southeast. USGS topographic quadrangle: Kure Beach.

Latitude--33.9605099
Longitude-- -77.9633332
Datum--WGS84
Coordinate source-from hand-held GPS

RANGE OF CHARACTERISTICS:
Depth to Bedrock--Greater than 200 centimeters
Manner of Failure / Fluidity Class--Slightly fluid to moderately fluid
Shell Fragments--0 to 5 percent, by volume
Soil Reaction--Slightly alkaline to moderately alkaline throughout profile
Oxidized Soil Reaction--Moderately acid to moderately alkaline (pH 5.6-8.4) throughout soil profile
Sulfurous Odor--Slight throughout profile
Electrical Conductivity--Greater than 0.6 dS m-1 throughout profile by 1:5 by volume solution mixture
Salinity Class--Slightly saline to strongly saline throughout profile
Reaction to 30% Hydrogen Peroxide--Slight to moderate reaction throughout profile
Horizon Soil Organic Carbon Density--1.7 to 39.8 kg m-3 throughout profile
Total Soil Organic Carbon Stock--10.7 to 86.6 kg m-2

Aseg or ACseg horizon (where present)
Hue--5Y, 10Y, 5GY, or N
Value--2.5 or 3
Chroma--0 to 2
Texture--silt loam, sandy clay loam, loam, clay loam, or silty clay loam including their mucky analogs

Cseg horizon
Hue--5Y, 10Y, or N
Value--2.5 or 3
Chroma--0 or 1
Texture--loam, sandy clay loam, clay loam, or silty clay loam

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

GEOGRAPHIC SETTING:
Parent Material--Fine-loamy estuarine deposits
Landscape--Southeast Coastal Plain Estuaries
Landform--Estuarine tidal streams
Slope--0 to 2 percent
Mean Annual Air Temperature--16 to 18 degrees C (61 to 64 degrees F)
Mean Annual Water Temperature--18 to 23 degrees C (64 to 75 degrees F)
Water Depth Range--0 to 2 meters (0 to 7 feet) below mean sea level
Water Regime--Tidal; 3 to 5 foot flux
Water Salinity Range--15 to 30 parts per thousand

GEOGRAPHICALLY ASSOCIATED SOILS:
These are the Bohicket, Carteret, Fort Caswell, Fort Fisher, Molasses Creek, Newhan, Showboat, Sunny Point, and Yaupon soils.
Bohicket soils--are on broad level tidal marsh flats bordering the Atlantic Ocean and formed in silty and clayey marine sediments.
Carteret soils--are on back-barrier island tidal marshes of the Atlantic Coast and formed in sandy marine deposits.
Fort Caswell soils--are on high-energy submerged wave-cut platforms and shoals formed in sandy estuarine deposits throughout.
Fort Fisher soils--are in barrier coves and submerged wave-cut platforms fluctuating from low to high energy formed from sandy over loamy intermixed estuarine deposits and have lithologic discontinuities within 100 centimeters of the soil surface.
Molasses Creek soils-- are in lower energy estuarine tidal streams and barrier coves formed in coarse-loamy estuarine deposits.
Newhan soils--are on gently undulating dunes commonly near beaches and waterways, do not have water at or near the soil surface, and formed in sand and shelly eolian deposits along the Atlantic Coast.
Showboat soils--are in mainland coves and estuarine tidal streams formed in coarse-loamy estuarine deposits and contain 40 centimeters of buried organic soil material within 200 centimeters of the soil surface.
Sunny Point soils--are on lower energy shoals and mainland coves and formed in coarse-loamy estuarine deposits and contain at least 15 centimeters of sulfidic materials within the top 50 centimeters of the soil.
Yaupon soils--are constructed from dredge-deposit spoil on the Lower Coastal Plain and consist of fine textured soil material.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage Class--Subaqueous (permanently submerged)
Saturated Hydraulic Conductivity--Moderately low to moderately high
Soil Moisture Regime--Peraquic

USE AND VEGETATION:
Major Uses--Used for recreational boating, fishing, and swimming. Some areas are actively harvested for crabs.
Vegetation-- Extremely limited and isolated stands of shoal grass (Halodule wrightii), widgeon grass (Ruppia maritima), and Saltwater Eelgrass (Zostera marina) exist in low turbidity areas that allow for establishment.

DISTRIBUTION AND EXTENT:
General area--Coastal plain estuaries in North Carolina
Region--T - Atlantic and Gulf Coast Lowland Forest and Crop Region
Extent--Small

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Special Projects Office

SERIES ESTABLISHED: Brunswick County, North Carolina, 2024

REMARKS:
Prices Creek is derived from Prices Creek Range Light that was constructed in 1849 and was used to mark a safe channel to the Port of Wilmington whilst navigating up the Cape Fear River. Prices Creek was deactivated in 1861.

Diagnostic horizons and other diagnostic soil characteristics recognized in this pedon are (Keys to Soil Taxonomy, Thirteenth Edition, 2022)--
n-value > 0.7--0 to 195 centimeters (0 to 77 inches), placing these soils taxonomically into the Grossic Hydrowassents subgroup.
Reduced Matrix--0 to 195 centimeters (0 to 77 inches); soil matrix that has low chroma in situ but undergoes a change in hue or chroma within 30 minutes after the soil material has been exposed to air
Endosaturation--0 to 195 centimeters (0 to 77 inches)
Peraquic feature-Zero or positive soil water potential at the soil surface.

Data Map Unit ID: 940078
NASIS User Site and Pedon ID: S2022NC019119
________________________________________

---

National Cooperative Soil Survey
U.S.A.