IDENTIFIERS

  • Current Taxon Name (Soil Name): Cropley
  • OSD
  • Series Extent
  • Local Phase: graded surface
  • User Site ID: S2013CA037001
  • User Pedon ID: S2013CA037001
  • Vegetation Plot ID: S2013CA037001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - KSSL
  • Lab Pedon # - 13N56578
  • NCSS Pedon Lab Data NASIS Record ID - 72857
  • Print Date: 2/2/2025

    • 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: 34.0305556
  • Std. Longitude: -117.9247222
  • Datum: WGS84
  • Location Description: La Puente, CA; near corner of Glengrary and Vanderwell Ave, 100 feet from road near soccer field at Grandview Elementary. Graded soccer field.
  • Map Unit: 1010—Cropley-Urban land complex, 0 to 5 percent slopes
  • Country: US—United States
  • State: California
  • County: CA037—Los Angeles
  • MLRA: 19—Southern California Coastal Plains and Mountains
  • Non-MLRA Soil Survey Area: CA696—Los Angeles County, California, Southeastern Part
  • 7.5 Minute USGS Quad: 34117-A8—Baldwin Park, California

    • PEDON

  • Describers Name: Randy L Riddle
  • Current Taxonomic Class: Fine, smectitic, thermic Aridic Haploxererts
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon #: 361
  • Correlated Information:
  • Soil Name - Cropley
  • PSC - 25 to 100 cm.
  • Classificaton Date - 5/6/2016
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Cropley
  • Taxonomic Class - Fine, smectitic, thermic Aridic Haploxererts
  • Taxon Kind - series
  • PSC - 25 to 100 cm.
  • Classificaton Date - 4/6/2010
  • Classifier - Randy L Riddle
  • Soil Taxonomic Edition - eleventh edition
  • Moisture SUBClass - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: human-transported material over alluvium
  • Landscape: coastal plain
  • Landform: graded alluvial fan
  • Geomorphic Component Flats: dip
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/2/2013 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - urban and built-up
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    CYDA

    Cynodon dactylon

    Bermudagrass

    —

    —

    —
    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    human-transported material

    slickensides

    secondary carbonates

    0—140

    0—58

    11—58

    58—200

    —140—

    —58—

    —47—

    —142—
    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

    3

    —

    —

    110

    —

    455

    —

    320

    17

    —

    —

    19

    —

    —

    —

    —

    —

    —

    —
    ^A—0 to 11 centimeters (0.0 to 4.3 inches); very dark grayish brown (10YR 3/2), black (10YR 2/1), moist; clay loam; 33 percent sand; 36 percent silt; 32 percent clay; moderate medium subangular blocky parts to moderate medium granular structure; very hard, firm, very sticky, very plastic; moderately slow permeability; 4.0 very fine roots throughout and 3.0 medium roots between peds and 3.0 fine roots between peds; 1 percent by volume subrounded 2-4-5 millimeter mixed fragments and 2 percent by volume subrounded 5-37-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; neutral, pH 7.2, pH indicator solutions; clear wavy boundary. Lab sample # 13N05929
    ^Bss—11 to 58 centimeters (4.3 to 22.8 inches);, black (10YR 2/1), moist; clay loam; 27 percent sand; 39 percent silt; 35 percent clay; strong coarse prismatic parts to moderate coarse subangular blocky structure; very hard, very firm, very sticky, very plastic; moderately slow permeability; 1.0 very fine roots throughout; 6.0 very fine interstitial pores; 15 percent prominent slickensides (pedogenic) on top faces of peds and 40 percent prominent pressure faces on all faces of peds; 1 percent by volume subrounded 2-37-75 millimeter mixed fragments; 1 percent by volume flat noncohesive persistent innocuous artifacts of plastic; noneffervescent, by hcl, 1n; neutral, pH 6.9, pH indicator solutions; gradual wavy boundary. Lab sample # 13N05930. Horizon shows evidence of surface grading within the upper 20 cm of the soil surface. Material is not significantly different from the natural material found below so it was not differentiated. A small paint chip was found and 5 mm angular granitic fragment (erratic) was observed to confirm this.
    2BCk1—58 to 140 centimeters (22.8 to 55.1 inches);, very dark grayish brown (10YR 3/2), moist; clay loam; 28 percent sand; 36 percent silt; 36 percent clay; moderate coarse subangular blocky structure; very hard, very firm, very sticky, very plastic; slow permeability; 1.0 very fine roots throughout; 4.0 very fine interstitial and 2.0 fine irregular pores; distinct pressure faces on faces of peds; 2 percent fine distinct irregular noncoherent cemented pale brown (10YR 6/3), moist, carbonate masses in matrix; 1 percent by volume subrounded 2-37-75 millimeter mixed fragments; strong effervescence, by hcl, 1n; neutral, pH 7.3, pH indicator solutions; gradual wavy boundary. Lab sample # 13N05931
    2BCk2—140 to 200 centimeters (55.1 to 78.7 inches);, dark brown (10YR 3/3), moist; clay loam; 41 percent sand; 31 percent silt; 28 percent clay; moderate medium subangular blocky structure; very hard, very firm, very sticky, very plastic; slow permeability; distinct pressure faces on all faces of peds; 5 percent distinct irregular noncoherent cemented pale brown (10YR 6/3), moist, carbonate masses in matrix; 1 percent by volume subrounded 2-4-5 millimeter mixed fragments and 3 percent by volume subrounded 5-37-75 millimeter mixed fragments; violent effervescence, by hcl, 1n; slightly alkaline, pH 7.6, pH indicator solutions. Lab sample # 13N05932