IDENTIFIERS

  • Current Taxon Name (Soil Name): FORWARD
  • OSD
  • Series Extent
  • User Site ID: S1972CA055003
  • User Pedon ID: S1972CA055003
  • Vegetation Plot ID: S1972CA055003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 72C0145
  • NCSS Pedon Lab Data NASIS Record ID - 44079
  • Print Date: 5/20/2024

    • 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: 38.5797234
  • Std. Longitude: -122.4183350
  • Datum: WGS84
  • Township: 8N
  • Range: 5W
  • Section: 4
  • PLSS Details: SE 1/4, NE 1/4
  • Location Description: Napa County, California. A pit located on Pacific Union College, 1,300 feet south of quarry on Inspiration Point Road and 50 feet west of Inspiration Point Road.
  • State: California
  • County: CA055—Napa
  • MLRA: 15—Central California Coast Range
  • Non-MLRA Soil Survey Area: CA055—Napa County, California

    • PEDON

  • Describers Name: G. Lambert, T.D. Cook
  • Current Taxonomic Class: Ashy, mixed, mesic Typic Vitrixerands
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - FORWARD
  • PSC - 20 to 71 cm.
  • Classificaton Date - 5/11/2005
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Butte
  • Classificaton Date - 11/14/1972
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: rhyolitic tuff
  • Landscape: steep upland
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/14/1972 (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

    ARBUT

    LIDE3

    PSME

    TODI

    Arbutus

    Lithocarpus densiflorus

    Pseudotsuga menziesii

    Toxicodendron diversilobum

    madrone

    tanoak

    Douglas-fir

    Pacific poison oak

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    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

    32

    —

    —

    524.3

    —

    0

    1016

    —

    —

    14

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    O1—0 to 1 centimeters (0.0 to 0.4 inches); material; fragments; slightly acid, pH 6.5; clear smooth boundary.; observed in pit, small
    A1—1 to 6 centimeters (0.4 to 2.4 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; gravelly loam; weak medium subangular blocky, and weak fine single grain; soft, friable, slightly sticky, slightly plastic; 21.0 very fine roots; 21.0 very fine and 21.0 fine pores; fragments; slightly acid, pH 6.5; gradual wavy boundary. Lab sample # 72C00883; observed in pit, small
    A3—6 to 21 centimeters (2.4 to 8.3 inches); very pale brown (10YR 8/2), grayish brown (10YR 5/2), moist; gravelly clay loam; weak medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 21.0 very fine roots and 3.0 medium roots and 21.0 fine roots; 21.0 very fine interstitial and 21.0 very fine tubular and 0.5 medium tubular and 21.0 fine tubular and 21.0 fine interstitial pores; fragments; slightly acid, pH 6.2; gradual irregular boundary. Lab sample # 72C00884; observed in pit, small
    Bt2—21 to 47 centimeters (8.3 to 18.5 inches); very pale brown (10YR 8/3), grayish brown (10YR 5/2), moist; gravelly clay loam; weak medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 21.0 very fine roots and 21.0 medium roots and 21.0 fine roots; 3.0 very fine interstitial and 3.0 very fine tubular and 0.5 medium vesicular and 3.0 fine tubular and 3.0 fine interstitial pores; 10 percent clay films on surfaces along pores and 10 percent clay bridges between sand grains; fragments; moderately acid, pH 6.0; gradual irregular boundary. Lab sample # 72C00885; observed in pit, small
    Bt3—47 to 72 centimeters (18.5 to 28.3 inches); very pale brown (10YR 8/3), pale brown (10YR 6/3), moist; gravelly loam; massive; slightly hard, friable, slightly sticky, slightly plastic; 0.5 medium roots and 3.0 fine roots and 0.1 coarse roots; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # 72C00886; observed in pit, small
    C1—72 to 98 centimeters (28.3 to 38.6 inches); very pale brown (10YR 8/2), light yellowish brown (10YR 6/4), moist; gravelly loam; massive; hard, friable, slightly sticky, slightly plastic; 0.5 medium roots and 0.5 coarse roots; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # 72C00887; observed in pit, small
    C2—98 to 126 centimeters (38.6 to 49.6 inches); very pale brown (10YR 8/2), pale brown (10YR 6/3), moist; gravelly loam; massive; loose, friable, slightly sticky, slightly plastic; fragments; slightly acid, pH 6.1; clear smooth boundary. Lab sample # 72C00888; observed in pit, small
    C3—126 to 156 centimeters (49.6 to 61.4 inches); very pale brown (10YR 8/2), light yellowish brown (10YR 6/4), moist; gravelly loam; massive; loose, friable, slightly sticky, slightly plastic; fragments; slightly acid, pH 6.1. Lab sample # 72C00889; observed in pit, small