IDENTIFIERS
Current Taxon Name (Soil Name):
PLEASANTON
OSD
Series Extent
User Site ID:
S1960CA001001
User Pedon ID:
S1960CA001001
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
SSL
Lab Pedon # -
40A2876
NCSS Pedon Lab Data NASIS Record ID -
37455
Print Date:
12/11/2024
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:
37.6624985
Std. Longitude:
-121.6966629
Datum:
WGS84
Township:
3S
Range:
2E
Section:
24
PLSS Details:
SE1/4 of the NE1/4 of the NE1/4
Location Description:
about 5 miles southeast of the center of Livermore.
State:
California
County:
CA001—Alameda
MLRA:
14—Central California Coastal Valleys
Non-MLRA Soil Survey Area:
CA609—Alameda Area, California
PEDON
Describers Name:
L. E. Welch.
Current Taxonomic Class:
Fine-loamy, mixed, thermic Mollic Haploxeralfs
Current Taxon Kind:
series
Pedon Type:
OSD pedon
Pedon Purpose:
full pedon description
Pedon Record Orgin:
Converted from PDP 3.x
Pedon #:
1
Correlated Information:
Soil Name -
PLEASANTON
PSC -
25 to 100 cm.
Classificaton Date -
7/16/2007
Moisture Class -
xeric
Sampled As Information:
Soil Name -
Pleasanton
Classificaton Date -
8/5/1960
Dynamic Soil Properties:
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Landform:
terrace
Slope Shape Down:
convex
Runoff:
medium
Drainage Class:
well
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
8/5/1960 (actual site observation date)
Surface Cover Properties:
Site Obs. Cover Kind 1 -
crop cover
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
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
1
—
—
216
—
180
356
—
—
—
—
—
—
—
—
—
—
—
—
—
A1p—0 to 23 centimeters (0.0 to 9.1 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; gravelly loam; massive parts to weak granular; hard when dry, friable, slightly sticky, slightly plastic; 21.0 fine and medium roots; 3.0 very fine and fine interstitial and 0.5 medium interstitial pores; fragments; slightly acid, pH 6.5, unspecified; abrupt smooth boundary. Lab sample # 40A22679; dry when described;
A12—23 to 53 centimeters (9.1 to 20.9 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; gravelly loam; massive; hard when dry, friable, slightly sticky, slightly plastic; 21.0 very fine roots and 0.5 medium roots and 3.0 fine roots; 3.0 very fine and fine interstitial and 0.5 medium interstitial pores; fragments; slightly acid, pH 6.5, unspecified; clear smooth boundary. Lab sample # 40A22680; dry when described;
B21—53 to 81 centimeters (20.9 to 31.9 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; gravelly clay loam; moderate medium subangular blocky structure; very hard, friable, moderately sticky, moderately plastic; 21.0 very fine and fine roots; 21.0 very fine and fine tubular and 0.5 medium tubular pores; 30 percent clay films on faces of peds and in pores; fragments; slightly acid, pH 6.5, unspecified; gradual wavy boundary. Lab sample # 40A22681; dry when described;
B22—81 to 122 centimeters (31.9 to 48.0 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; gravelly clay loam; moderate medium subangular blocky structure; very hard, friable, moderately sticky, moderately plastic; 21.0 very fine roots and 0.5 fine roots; 21.0 very fine tubular and 0.5 medium tubular and 3.0 fine tubular pores; 30 percent clay films on faces of peds and in pores; fragments; neutral, pH 7.0, unspecified; gradual wavy boundary. Lab sample # 40A22682; moist when described;
B3—122 to 163 centimeters (48.0 to 64.2 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; gravelly silty clay loam; weak medium subangular blocky structure; very hard, friable, moderately sticky, moderately plastic; 0.1 very fine roots; 3.0 very fine and fine tubular pores; 10 percent clay films on faces of peds and in pores; fragments; slightly alkaline, pH 7.5, unspecified; gradual wavy boundary. Lab sample # 40A22683; moist when described;
C—163 to 183 centimeters (64.2 to 72.0 inches); yellowish brown (10YR 5/4), dark yellowish brown (10YR 4/4), moist; gravelly silt loam; massive parts to weak angular blocky; hard when dry, friable, moderately sticky, slightly plastic; 3.0 very fine and fine tubular and 0.5 medium tubular pores; 10 percent clay films on faces of peds and in pores; fragments; slightly alkaline, pH 7.5, unspecified. Lab sample # 40A22684; moist when described;