IDENTIFIERS

  • Current Taxon Name (Soil Name): unnamed
  • OSD
  • Series Extent
  • User Site ID: S1971CA001002
  • User Pedon ID: S1971CA001002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 72C0002
  • NCSS Pedon Lab Data NASIS Record ID - 43936
  • Print Date: 4/27/2024

    • 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: 37.7243538
  • Std. Longitude: -121.8185349
  • Datum: WGS84
  • Township: 2S
  • Range: 1E
  • Section: 25
  • PLSS Details: 1325 feet east and 275 feet north of the southwest corner
  • Location Description: Approximately 3 miles northeast of Livermore.
  • State: California
  • County: CA001—Alameda
  • MLRA: 15—Central California Coast Range

    • PEDON

  • Describers Name: Grant Kennedy, Larry Velch, Dave Maurer, and Cliff Lenders
  • Current Taxonomic Class: Fine, mixed, thermic Chromic Pelloxererts
  • Pedon Record Orgin: NASIS
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - unnamed
  • Classificaton Date - 7/24/2007
  • Sampled As Information:
  • Soil Name - Diablo
  • Classificaton Date - 10/7/1971
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: interbedded fine-grained sandstone and shale
  • Landform: hilly upland slope
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Bedrock: shale, unspecified
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/7/1971 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous 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

    30

    —

    —

    189

    —

    0

    381

    —

    —

    —

    —

    —

    15.6

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; clay; strong very coarse prismatic, and weak medium subangular blocky structure; very hard, very firm, moderately sticky, very plastic; 21.0 very fine roots; 0.5 very fine tubular pores; fragments; slightly alkaline, pH 7.5; diffuse smooth boundary.
    A12—23 to 51 centimeters (9.1 to 20.1 inches); dark gray (5Y 4/1), very dark gray (5Y 3/1), moist; clay; strong very coarse prismatic structure; very hard, very firm, moderately sticky, very plastic; 21.0 very fine roots; 0.5 very fine tubular pores; 75 percent slickensides (pedogenic) and 75 percent pressure faces; 10 percent white (N 8/0), dry, lime nodules; fragments; slight effervescence; moderately alkaline, pH 8.2; clear smooth boundary.
    Aac13—51 to 84 centimeters (20.1 to 33.1 inches); dark gray (5Y 4/1), dark gray (5Y 4/1), moist; clay; strong very coarse prismatic structure; very hard, very firm, moderately sticky, very plastic; 3.0 very fine roots; 0.5 very fine tubular pores; 75 percent slickensides (pedogenic) and 75 percent pressure faces; 75 percent white (N 8/0), dry, lime nodules; fragments; slight effervescence; moderately alkaline, pH 8.2; clear wavy boundary. Lab sample # 72C00010
    Aac14—84 to 114 centimeters (33.1 to 44.9 inches); olive (5Y 5/3) and dark gray (5Y 4/1), olive (5Y 5/4) and dark gray (5Y 4/1), moist; clay; moderate very coarse prismatic structure; very hard, very firm, moderately sticky, very plastic; 3.0 very fine roots; 0.5 very fine tubular pores; 75 percent slickensides (pedogenic) and 75 percent pressure faces; 75 percent white (N 8/0), moist, lime nodules and 10 percent weakly coherent cemented lime masses; fragments; slight effervescence; moderately alkaline, pH 8.2; clear wavy boundary. Lab sample # 72C00011
    ACac—114 to 145 centimeters (44.9 to 57.1 inches); light olive gray (5Y 6/2) and dark gray (5Y 4/1) and pale olive (5Y 6/3), very dark gray (5Y 3/1) and olive gray (5Y 5/2) and pale olive (5Y 6/3), moist; silty clay; weak very coarse prismatic, and moderate very coarse subangular blocky, and moderate very fine subangular blocky structure; very hard, very firm, moderately sticky, very plastic; 0.5 very fine roots; 0.5 very fine tubular pores; 10 percent pressure faces and 10 percent slickensides (pedogenic); 75 percent lime nodules throughout and 75 percent carbonate, finely disseminated throughout; fragments; strong effervescence; moderately alkaline, pH 8.2; clear wavy boundary. Lab sample # 72C00012
    Cac1—145 to 163 centimeters (57.1 to 64.2 inches); olive (5Y 5/3) bedrock; 0.5 very fine roots; 0.5 very fine tubular pores; thin pale yellow (2.5Y 8/2), moist, carbonate coats; fragments; strong effervescence; moderately alkaline, pH 8.2; clear smooth boundary. Lab sample # 72C00013
    Cac2—163 to 190 centimeters (64.2 to 74.8 inches); olive (5Y 5/3) bedrock; 1 percent by volume weakly coherent cemented 2-?-5 millimeter limestone, unspecified fragments. Lab sample # 72C00014