IDENTIFIERS

  • Current Taxon Name (Soil Name): PACHAPPA
  • OSD
  • Series Extent
  • User Site ID: S1969CA071024
  • User Pedon ID: S1969CA071024
  • Vegetation Plot ID: S1969CA071024
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 69C0056
  • NCSS Pedon Lab Data NASIS Record ID - 43629
  • Print Date: 11/23/2024

    • 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: 33.9188881
  • Std. Longitude: -117.6324997
  • Datum: WGS84
  • Township: 3S
  • Range: 7W
  • Section: 5
  • PLSS Details: About 1/2 mile south of Chino-Corona Road and Cucamonga Avenue intersection; about 100 feet east of Cucamonga Avenue; SW1/4 NE1/4 SE1/4
  • State: California
  • County: CA071—San Bernardino
  • MLRA: 19—Southern California Coastal Plains and Mountains
  • Non-MLRA Soil Survey Area: CA677—San Bernardino County Southwestern Part, California

    • PEDON

  • Describers Name: A. A. Knecht, W. D. Nettleton, W. Z. Brock.
  • Current Taxonomic Class: Fine-loamy, mixed, thermic Mollic Haploxeralfs
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 24
  • Correlated Information:
  • Soil Name - PACHAPPA
  • PSC - 15 to 65 cm.
  • Classificaton Date - 7/16/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Pachappa
  • Classificaton Date - 6/10/1969
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: alluvial fan
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/10/1969 (actual site observation date)
  • Surface Cover Properties:
  • 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

    BRTE

    Bromus tectorum

    cheatgrass

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    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

    5

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    168

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    406

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    16.1

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    Ap—0 to 15 centimeters (0.0 to 5.9 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; loam; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; 21.0 very fine roots; 21.0 very fine discontinuous tubular pores; fragments; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 69C00299
    B1—15 to 28 centimeters (5.9 to 11.0 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; clay loam; weak medium prismatic parts to moderate medium subangular blocky structure; very hard, firm, very sticky, very plastic; 21.0 very fine roots; 3.0 very fine discontinuous tubular pores; fragments; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 69C00300
    B21t—28 to 43 centimeters (11.0 to 16.9 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; clay loam; moderate medium prismatic parts to moderate medium subangular blocky structure; extremely hard, very firm, very sticky, very plastic; 3.0 very fine roots; 0.5 very fine interstitial pores; 1 percent clay films on faces of peds; fragments; moderately alkaline, pH 8.0, hellige-truog; gradual smooth boundary.
    B22t—43 to 74 centimeters (16.9 to 29.1 inches); dark grayish brown (10YR 4/2), very dark brown (10YR 2/2), moist; clay loam; moderate medium prismatic parts to moderate medium subangular blocky structure; extremely hard, very firm, very sticky, very plastic; 0.5 very fine roots; 0.5 very fine discontinuous tubular pores; 10 percent clay films on faces of peds; fragments; slight effervescence; strongly alkaline, pH 8.5, hellige-truog; clear smooth boundary. Lab sample # 69C00301
    B3t—74 to 102 centimeters (29.1 to 40.2 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; sandy clay loam; weak coarse prismatic parts to moderate medium angular blocky structure; very hard, very firm, moderately sticky, moderately plastic; 0.1 roots; 0.1 discontinuous tubular pores; 30 percent clay films on faces of peds; medium spherical noncoherent cemented lime masses; fragments; strong effervescence; strongly alkaline, pH 8.5, hellige-truog; clear irregular boundary.
    C1—102 to 137 centimeters (40.2 to 53.9 inches); reddish yellow (7.5YR 6/6), strong brown (7.5YR 5/6), moist; loamy coarse sand; massive; hard when dry, friable, nonsticky, nonplastic; fragments; strong effervescence; strongly alkaline, pH 8.5, hellige-truog; clear wavy boundary.
    C2—137 to 170 centimeters (53.9 to 66.9 inches); very pale brown (10YR 7/3), pale brown (10YR 6/3), moist; loamy coarse sand; massive; hard when dry, firm, nonsticky, nonplastic; fragments; moderately alkaline, pH 8.0, hellige-truog.