IDENTIFIERS

Current Taxon Name (Soil Name): Mckeonhills

OSD

Series Extent

User Site ID: S2004CA632037

User Pedon ID: S2004CA099001

Vegetation Plot ID: S2004CA632037

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - NSSL

Lab Pedon # - 05N0392

NCSS Pedon Lab Data NASIS Record ID - 17669

Print Date: 11/21/2024

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 37.9708061

Std. Longitude: -120.8163910

Datum: WGS84

Township: 1 N.

Range: 10 E.

Section: 1

PLSS Details: About 30 meters (100 feet) west and 340 meters (1,120 feet) south of the northeast corner

Location Description: Access to the site is via Hwy. 4, 1.2 mi. E. of intersection of Hwy. 4 and Hwy. J14 (Milton Rd.). Northeast 1.75 miles (private road, Bruce Orvis) and 0.5 mi. NW offroad to site.

Country: US—United States

State: California

County: CA099—Stanislaus

MLRA: 17—Sacramento and San Joaquin Valleys

Regional Office: SW—Southwest

Non-MLRA Soil Survey Area: CA632—Stanislaus County, California, Northern Part

7.5 Minute USGS Quad: 37120-H7—Bachelor Valley, California

PEDON

Describers Name: JCR, KC

Current Taxonomic Class: Fine, smectitic, thermic Aridic Haploxererts

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: NASIS

Pedon #: 37

Correlated Information:

Soil Name - Mckeonhills (flagged as OSD)

PSC - 25 to 99 cm.

Classificaton Date - 7/27/2012

Soil Taxonomic Edition - ninth edition

Moisture Class - xeric

Moisture Subclass - aridic (torric)

Sampled As Information:

Soil Name - Mckeonhills

Classificaton Date - 11/24/2004

Dynamic Soil Properties:

Erosion Class - 2

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: clayey creep deposits derived from calcareous sandstone

Landscape: hills

Landform: hillslope

Geomorphic Component Hills: nose slope

Hill Slope Profile: backslope

Slope Position: lower third

Slope Complexity: complex

Slope Shape Across: concave

Slope Shape Down: convex

Runoff: low

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Bedrock: moderately coherent slight weathered sandstone, calcareous at 99cm with =>200 and a strike of 225 degrees and a dip of 25 to 32 degrees

Geology: Blackhills formation.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 11/24/2004 (actual site observation date)

Air Photo ID: 0318

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - rangeland, grassland

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Current Weather - sunny

Current Air Temp - 12

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
AVFA BRDI3 BRHOH ERODI FEME MEHI SECAL TACA8 TRHI4	Avena fatua Bromus diandrus Bromus hordeaceus ssp. hordeaceus Erodium Festuca megalura Medicago hispida Secale Taeniatherum caput-medusae Trifolium hirtum	wild oat ripgut brome soft brome stork's bill annual fescue — rye medusahead rose clover	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, paralithic	moderately coherent	99 - 119	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon secondary carbonates slickensides paralithic contact	0—99 10—99 56—99 99—119	50—99—100 2—43—45 5—43—45 —-

Site Soil Temperature
Site Obs. Date	Depth	Sensor Kind	Temperature
	cm		C
11/24/2004	50	—	12

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
11	—	—	103	—	250	406	—	275	17	23	10	—	—	—	—	—	CA5738	Modesto	TAPS

A—0 to 10 centimeters (0.0 to 3.9 inches); dark gray (5YR 4/1), very dark gray (7.5YR 3/1), moist; clay; 10 percent sand; 30 percent silt; 60 percent clay; moderate medium subangular blocky structure; rigid, firm, very sticky, very plastic; very high excavation difficulty; 8.0 very fine roots throughout and 0.1 fine roots throughout; 0.2 medium tubular pores; 1 percent by volume subrounded indurated 2-3-5 millimeter mixed fragments; strong effervescence; moderately alkaline, pH 8.0; clear wavy boundary.; moist when described; observed in trench

Bk1—10 to 23 centimeters (3.9 to 9.1 inches); dark gray (5YR 4/1), dark brown (7.5YR 3/2), moist; clay; 10 percent sand; 30 percent silt; 60 percent clay; moderate coarse angular blocky structure; rigid, firm, very sticky, very plastic; very high excavation difficulty; 6.0 very fine roots throughout and 0.1 fine roots throughout; 0.2 very fine dendritic tubular pores; 3 percent fine prominent spherical moderately coherent cemented pinkish white (7.5YR 8/2), dry, carbonate nodules with sharp boundaries in matrix; 1 percent by volume subrounded indurated 2-3-5 millimeter mixed fragments; strong effervescence; moderately alkaline, pH 8.0; clear wavy boundary.; moist when described; observed in trench

Bk2—23 to 48 centimeters (9.1 to 18.9 inches); dark gray (5YR 4/1), dark brown (7.5YR 3/2), moist; clay; 10 percent sand; 35 percent silt; 55 percent clay; moderate coarse angular blocky structure; rigid, firm, very sticky, very plastic; very high excavation difficulty; 5.0 very fine roots throughout and 0.1 fine roots throughout; 0.2 very fine dendritic tubular pores; 20 percent faint pressure faces on all faces of peds; 3 percent fine prominent spherical moderately coherent cemented pinkish white (7.5YR 8/2), dry, carbonate nodules with sharp boundaries in matrix; 1 percent by volume subrounded indurated 2-3-5 millimeter mixed fragments; strong effervescence; moderately alkaline, pH 8.2; clear wavy boundary.; dry when described; observed in trench. patchy - phpvsfiid 271715; patchy - phpvsfiid 271715

Bkss1—48 to 70 centimeters (18.9 to 27.6 inches); dark gray (5YR 4/1), dark brown (7.5YR 3/2), moist; clay; 15 percent sand; 30 percent silt; 55 percent clay; moderate coarse wedge structure; extremely hard, firm, very sticky, very plastic; very high excavation difficulty; 2.0 very fine roots throughout; 0.1 very fine dendritic tubular pores; 1 percent prominent pinkish white (7.5YR 8/2), dry, carbonate coats on all faces of peds and 10 percent distinct dark gray (5YR 4/1), dry, slickensides (pedogenic) on slickensides; 3 percent fine prominent spherical moderately coherent cemented pinkish white (7.5YR 8/2), dry, carbonate nodules with sharp boundaries in matrix; 1 percent by volume subrounded indurated 2-3-5 millimeter mixed fragments; strong effervescence; moderately alkaline, pH 8.2; clear wavy boundary.; dry when described; observed in trench. patchy - phpvsfiid 271716; patchy - phpvsfiid 271717; patchy - phpvsfiid 271716; patchy - phpvsfiid 271717

Bkss2—70 to 99 centimeters (27.6 to 39.0 inches); dark gray (5YR 4/1), dark brown (7.5YR 3/2), moist; clay; 15 percent sand; 30 percent silt; 55 percent clay; strong very coarse wedge structure; very hard, firm, very sticky, very plastic; very high excavation difficulty; 0.1 very fine roots throughout; 2 percent prominent pinkish white (7.5YR 8/2), dry, carbonate coats on all faces of peds and 80 percent distinct dark gray (5YR 4/1), dry, slickensides (pedogenic) on slickensides; 3 percent fine prominent spherical moderately coherent cemented pinkish white (7.5YR 8/2), dry, carbonate nodules with sharp boundaries in matrix; 1 percent by volume subrounded indurated 2-3-5 millimeter mixed fragments; violent effervescence; moderately alkaline, pH 8.2; clear wavy boundary.; dry when described; observed in trench. continuous - phpvsfiid 271718; patchy - phpvsfiid 271719; continuous - phpvsfiid 271718; patchy - phpvsfiid 271719

Cr—99 to 152 centimeters (39.0 to 59.8 inches); 60 percent light gray (2.5Y 7/2) broken face and 40 percent white (10YR 8/1) broken face, light yellowish brown (2.5Y 6/3) broken face, moist; high excavation difficulty; fragments; violent effervescence; moderately alkaline, pH 8.3; abrupt irregular boundary.; observed in trench