IDENTIFIERS

  • Current Taxon Name (Soil Name): Brentwood
  • OSD
  • Series Extent
  • User Site ID: S1978CA013000
  • User Pedon ID: 78CA013000
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 79P0088
  • NCSS Pedon Lab Data NASIS Record ID - 46272
  • Print Date: 6/3/2024

    • 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: 37.9299049
  • Std. Longitude: -121.6932526
  • Datum: WGS84
  • Township: 1N
  • Range: 2E
  • Section: 24
  • PLSS Details: NE 1/4 NE 1/4 SE 1/4
  • Location Description: Contra Costa County, CA.
  • State: California
  • County: CA013—Contra Costa
  • MLRA: 17—Sacramento and San Joaquin Valleys

    • PEDON

  • Describers Name: LEW/GMK/LCL
  • Current Taxonomic Class: Fine-loamy, smectitic, thermic Typic Xerochrepts
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Correlated Information:
  • Soil Name - Brentwood
  • Classificaton Date - 2/1/2010
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Brentwood
  • Classificaton Date - 1/1/1978
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/1/1978 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • 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

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    1Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2) interior, grayish brown (10YR 5/2) interior, dry; clay loam; massive; hard, friable, moderately sticky, moderately plastic; 2.5 very fine and fine roots; 5.5 very fine and fine interstitial and tubular pores; fragments; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 79P00459. common very fine and fine roots
    1A12—20 to 46 centimeters (7.9 to 18.1 inches); very dark grayish brown (10YR 3/2) interior, grayish brown (10YR 5/2) interior, dry; clay loam; massive; hard, friable, moderately sticky, moderately plastic; 0.5 very fine and fine roots; 5.5 very fine and fine interstitial and tubular pores; fragments; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # 79P00460. Dark brown 10YR 3/3 when rubbed.; few very fine and fine roots
    1B21—46 to 84 centimeters (18.1 to 33.1 inches); dark brown (10YR 3/3) interior, brown (10YR 4/3) interior, dry; clay loam; weak medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 0.5 very fine and fine roots; 5.5 very fine and fine tubular pores; 15 percent clay films on faces of peds and 15 percent clay films in root channels and/or pores; fragments; moderately alkaline, pH 8.0, hellige-truog; clear wavy boundary. Lab sample # 79P00461. few clay films surface features on faces of peds; few clay films surface features in root channels and/or pores; few very fine and fine roots
    1B3—84 to 127 centimeters (33.1 to 50.0 inches); dark yellowish brown (10YR 3/4) interior, yellowish brown (10YR 5/4) interior, dry; clay loam; massive; hard, very friable, moderately sticky, moderately plastic; 0.5 very fine and fine roots and 0.1 medium roots; 5.5 very fine and fine tubular pores; 15 percent clay films in root channels and/or pores; fragments; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # 79P00462. few clay films surface features in root channels and/or pores; few very fine and fine roots; very few medium roots
    1C—127 to 152 centimeters (50.0 to 59.8 inches); dark yellowish brown (10YR 3/4) interior, yellowish brown (10YR 5/4) interior, dry; silty clay loam; massive; hard, very friable, moderately sticky, slightly plastic; 0.5 very fine roots; 5.5 very fine and fine tubular and 5.5 fine interstitial pores; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 79P00463. Disseminated lime.; few very fine roots