IDENTIFIERS

  • Current Taxon Name (Soil Name): Millsap
  • OSD
  • Series Extent
  • User Site ID: S1955CA079004
  • User Pedon ID: S1955CA079004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2927
  • NCSS Pedon Lab Data NASIS Record ID - 38056
  • Print Date: 11/13/2024

    • 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: 35.5499992
  • Std. Longitude: -120.7666702
  • Datum: WGS84
  • Location Description: On Maino Ranch, about 3/8 mile northwest of San Bernardino Creek Road, 2.6 miles northeast of junction of Highway 101 and San Bernardino Creek Road.
  • State: California
  • County: CA079—San Luis Obispo
  • MLRA: 15—Central California Coast Range
  • Non-MLRA Soil Survey Area: CA664—San Luis Obispo County, California, Coastal Part

    • PEDON

  • Describers Name: J. M. Williams and Rudolph Ulrich
  • Current Taxonomic Class: Fine, smectitic, thermic Mollic Palexeralfs
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 4
  • Correlated Information:
  • Soil Name - Millsap
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/23/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Millsap
  • Classificaton Date - 9/8/1955
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: hill
  • Slope Shape Down: convex
  • Runoff: high
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/8/1955 (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

    11

    —

    —

    91

    —

    90

    —

    —

    —

    —

    —

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    AP—0 to 13 centimeters (0.0 to 5.1 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; loam; massive, and weak coarse prismatic; very hard, friable, nonsticky, slightly plastic; fine roots and 21.0 fine roots; fragments; moderately acid, pH 6.0, unspecified; abrupt smooth boundary. Lab sample # 40A23088. breakage due to extreme drying, probably weak very fine granular when moist, numerous fine roots and elongated porous openings due to fine root hairs.
    A12—13 to 28 centimeters (5.1 to 11.0 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; loam; massive, and weak coarse prismatic; very hard, friable, nonsticky, slightly plastic; 21.0 fine roots; tubular pores; fragments; slightly acid, pH 6.2, unspecified; clear smooth boundary. Lab sample # 40A23089. numerous fine roots and elongated tubules due to root hair action.
    A13—28 to 46 centimeters (11.0 to 18.1 inches);, very dark grayish brown (10YR 3/2), moist; loam; massive, and weak coarse prismatic; very hard, friable, nonsticky, slightly plastic; 3.0 fine roots and 21.0 fine roots; fine tubular pores; fragments; neutral, pH 6.8, unspecified; abrupt smooth boundary. Lab sample # 40A23090. very numerous elongated fine pinhole openings or tubules due to fine root hair action (these openings have been described in numerous California reports as being vesicular, especially the lower surface or A2 horizons of Planosolic profiles like Watsonville, Tierra, etc.), common fine root hairs.
    B21—46 to 66 centimeters (18.1 to 26.0 inches);, very dark grayish brown (2.5Y 3/2), moist; clay; moderate coarse and very coarse prismatic parts to medium and coarse subangular blocky structure; extremely hard, very firm, moderately sticky, moderately plastic; 0.5 fine roots; clay films on vertical faces of peds; 1 percent fine magnetic shot; 1 percent by volume angular 2-39-75 millimeter shale, unspecified fragments; neutral, pH 6.8, unspecified; clear smooth boundary. Lab sample # 40A23091. roots fine, few and only along structural planes; few fine manganese shot and very few angular (gravel-size) hard shale fragments.; patchy - phpvsfiid 196487; patchy - phpvsfiid 196487
    B22—66 to 86 centimeters (26.0 to 33.9 inches);, very dark grayish brown (2.5Y 3/2), moist; clay; moderate coarse and very coarse prismatic parts to medium and coarse subangular blocky structure; extremely hard, extremely firm, moderately sticky, moderately plastic; 0.1 fine roots; clay films; 3 percent fine magnetic shot; 21 percent by volume 20-48-75 millimeter shale, unspecified fragments; neutral, pH 7.3, unspecified; clear smooth boundary. Lab sample # 40A23092. patchy - phpvsfiid 196488; patchy - phpvsfiid 196488
    B23—86 to 102 centimeters (33.9 to 40.2 inches);, dark grayish brown (2.5Y 4/2), moist; clay; weak medium subangular blocky structure; extremely hard, extremely firm, moderately sticky, moderately plastic; very fine roots; 1 percent fine magnetic shot; 1 percent by volume 20-48-75 millimeter shale, unspecified fragments; slightly alkaline, pH 7.5, unspecified; abrupt wavy boundary. Lab sample # 40A23093
    CR—102 to 102 centimeters (40.2 to 40.2 inches); fragments. Lab sample # 40A23094. Shattered, hard, metamorphosed shale with some weathered material between the fragments but essentially unaltered within an inch or two (San Luis Obispo formation).