IDENTIFIERS

  • Current Taxon Name (Soil Name): ZACA
  • OSD
  • Series Extent
  • User Site ID: S1973CA079001
  • User Pedon ID: S1973CA079001
  • Vegetation Plot ID: S1973CA079001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 73C0029
  • NCSS Pedon Lab Data NASIS Record ID - 44663
  • Print Date: 4/24/2025

    • 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: 35.6230545
  • Std. Longitude: -120.8702774
  • Datum: WGS84
  • Township: 26S
  • Range: 10E
  • Section: 35
  • PLSS Details: About 1 3/4 mile west on jeep road from entrance of Willow Creek Road, 4,300 feet west and 3,450 feet south from the NE corner
  • Location Description: San Luis Obispo County, California. Paso Robles Area.
  • 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

  • Current Taxonomic Class: Very-fine, smectitic Vertic Haploxerolls
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - ZACA
  • PSC - 25 to 100 cm.
  • Classificaton Date - 4/8/2002
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Zaca
  • Classificaton Date - 6/1/1973
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: steep upland
  • Runoff: high
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1973 (actual site observation date)
  • Air Photo ID: G-6
  • 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

    BRHOH

    BRRI8

    ELGL

    HEAR5

    KALMI

    QUAG

    QUAL

    QUBE5

    TODI

    Bromus hordeaceus ssp. hordeaceus

    Bromus rigidus

    Elymus glaucus

    Heteromeles arbutifolia

    Kalmia

    Quercus agrifolia

    Quercus alba

    Quercus berberidifolia

    Toxicodendron diversilobum

    soft brome

    ripgut brome

    blue wildrye

    toyon

    laurel

    California live oak

    white oak

    scrub oak

    Pacific poison oak

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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

    45

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    518.2

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    45

    406

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    13.8

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    A11—0 to 8 centimeters (0.0 to 3.1 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; clay; strong medium prismatic, and strong coarse prismatic structure; hard, firm, very sticky, very plastic; 3.0 very fine roots and 0.5 fine roots; 21.0 very fine interstitial and 3.0 fine tubular pores; fragments; neutral, pH 7.0; gradual wavy boundary. Lab sample # 73C00195
    A12—8 to 35 centimeters (3.1 to 13.8 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; clay; strong medium subangular blocky, and strong coarse subangular blocky, and weak coarse prismatic structure; very hard, very firm, very sticky, very plastic; 3.0 very fine roots; 3.0 very fine tubular and 3.0 fine tubular pores; fragments; slightly alkaline, pH 7.5; clear wavy boundary. Lab sample # 73C00196
    A13—35 to 55 centimeters (13.8 to 21.7 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; clay; weak coarse subangular blocky structure; very hard, very firm, very sticky, very plastic; 3.0 very fine roots and 0.5 medium roots and 0.5 fine roots and 0.5 coarse roots; 3.0 very fine tubular and 3.0 medium tubular pores; 4 percent by volume weakly coherent cemented 2-?-5 millimeter shale, calcareous fragments; slightly alkaline, pH 7.5; clear wavy boundary. Lab sample # 73C00197
    A14—55 to 91 centimeters (21.7 to 35.8 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; clay; massive; very hard, firm, very sticky, very plastic; 3.0 very fine roots and 0.5 medium roots and 0.5 fine roots and 0.5 coarse roots; 21.0 very fine tubular and 0.5 medium tubular and 21.0 fine tubular pores; fragments; violent effervescence; slightly alkaline, pH 7.5; clear wavy boundary. Lab sample # 73C00198
    AC—91 to 118 centimeters (35.8 to 46.5 inches); dark gray (10YR 4/1) and light yellowish brown (10YR 6/4), dark yellowish brown (10YR 4/4) and very dark gray (10YR 3/1), moist; clay; massive; hard, firm, moderately sticky, moderately plastic; 3.0 medium roots and 3.0 coarse roots; 0.5 medium tubular and 3.0 fine tubular pores; fragments; slight effervescence; moderately alkaline, pH 8.0; clear wavy boundary. Lab sample # 73C00199
    C1—118 to 140 centimeters (46.5 to 55.1 inches); light yellowish brown (10YR 6/4), dark yellowish brown (10YR 4/4), moist; clay; massive; hard, friable, moderately sticky, moderately plastic; 3.0 medium roots and 3.0 coarse roots; 0.5 medium tubular and 21.0 fine tubular pores; fragments; slight effervescence; moderately alkaline, pH 8.0; clear wavy boundary. Lab sample # 73C00200
    C2—140 to 159 centimeters (55.1 to 62.6 inches); very pale brown (10YR 7/4), yellowish brown (10YR 5/4), moist; bedrock; fragments. Lab sample # 73C00201