IDENTIFIERS

  • Current Taxon Name (Soil Name): San Joaquin
  • OSD
  • Series Extent
  • User Site ID: S2009CA067001
  • User Pedon ID: S09CA067001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 09N0919
  • NCSS Pedon Lab Data NASIS Record ID - 24642
  • Print Date: 1/14/2025

    • 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: 38.3539734
  • Std. Longitude: -121.1729202
  • Datum: WGS84
  • Township: 6N
  • Range: 7E
  • Section: 23
  • PLSS Details: 1,275 feet (388.6 meters) north and 1,279 feet (387.1 meters) west of the southeast corner of section 23
  • Location Description: About 7.7 miles (12.4 kilometers) east of State Hwy 99 on State Hwy 104, about 1.3 miles (2.1 kilometers) north on Clay Station road from Hwy 104, about 1,260 feet (384.1 meters) west in the field south of the dirt road next to the row of Eucalyptus trees.
  • Map Unit: 215—San Joaquin silt loam, 3 to 8 percent slopes
  • State: California
  • County: CA067—Sacramento
  • MLRA: 17—Sacramento and San Joaquin Valleys
  • Regional Office: SW—Southwest
  • MLRA Soil Survey Area: SW-HAN—Hanford, California
  • Non-MLRA Soil Survey Area: CA067—Sacramento County, California
  • 7.5 Minute USGS Quad: 38121-C2—Clay, California

    • PEDON

  • Describers Name: Terry Cook, Kerry Arroues, Bry Schmidt
  • Current Taxonomic Class: Fine, mixed, active, thermic Abruptic Durixeralfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - San Joaquin
  • PSC - 0 to 66 cm.
  • Classificaton Date - 8/4/2009
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - San Joaquin
  • Taxonomic Class - Fine, mixed, active, thermic Abruptic Durixeralf
  • Taxon Kind - series
  • Classificaton Date - 5/20/2009
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: valley
  • Landform: terrace
  • Geomorphic Component Terraces: tread
  • Runoff: low
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/20/2009 (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
  • Current Weather - sunny
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    duripan

    duripan

    very strongly coherent

    moderately coherent

    66 - 86

    86 - 126

    - 20 -

    - 40 -

    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    duripan

    duripan

    0—20

    20—66

    66—86

    86—126

    —20—

    —66—

    —20—

    —40—
    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

    3

    —

    —

    33.5

    —

    120

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 8 centimeters (0.0 to 3.1 inches); light brown (7.5YR 6/3) broken face, dark brown (7.5YR 3/2) broken face, moist; loam; 18 percent clay; strong very coarse subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; Ksat of 9 um/s; moderate permeability; low excavation difficulty; 3.0 very fine roots throughout and 1.0 fine roots throughout; 3.0 very fine tubular and 1.0 fine tubular pores; 30 percent medium distinct spherical strong brown (7.5YR 5/8), dry, masses of oxidized iron with sharp boundaries throughout; fragments; clear wavy boundary. Lab sample # 09N03350; dry when described; observed in pit, large or quarry
    A2—8 to 20 centimeters (3.1 to 7.9 inches); brown (7.5YR 5/4) broken face, brown (7.5YR 4/3) broken face, moist; loam; 20 percent clay; moderate coarse subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; Ksat of 9 um/s; moderate permeability; low excavation difficulty; 3.0 very fine roots throughout; 3.0 very fine tubular pores; 15 percent medium distinct spherical strong brown (7.5YR 5/8), dry, masses of oxidized iron with sharp boundaries throughout; fragments; clear wavy boundary. Lab sample # 09N03351; dry when described; observed in pit, large or quarry
    Bt1—20 to 36 centimeters (7.9 to 14.2 inches); brown (7.5YR 5/4) broken face, brown (7.5YR 4/4) broken face, moist; loam; 24 percent clay; moderate coarse subangular blocky structure; slightly hard, friable, moderately sticky, slightly plastic; Ksat of 9 um/s; moderate permeability; low excavation difficulty; 1.0 very fine roots throughout; 1.0 very fine tubular pores; 5 percent faint clay bridges between sand grains; 5 percent medium distinct spherical strong brown (7.5YR 5/8), dry, masses of oxidized iron with sharp boundaries throughout; fragments; abrupt wavy boundary. Lab sample # 09N03352; dry when described; observed in pit, large or quarry
    2Bt2—36 to 66 centimeters (14.2 to 26.0 inches); brown (7.5YR 5/3) broken face, dark brown (7.5YR 3/3) broken face, moist; clay; 47 percent clay; strong very coarse prismatic parts to strong medium and coarse angular blocky structure; very hard, extremely firm, moderately sticky, very plastic; Ksat of 1 um/s; very slow permeability; moderate excavation difficulty; 1.0 very fine roots throughout; 1.0 very fine tubular pores; prominent clay films on surfaces along pores and clay films on surfaces along root channels and 75 percent prominent clay films on all faces of peds; fragments; abrupt wavy boundary. Lab sample # 09N03353; moderately moist when described; observed in pit, large or quarry
    3Bqm—66 to 86 centimeters (26.0 to 33.9 inches); brown (7.5YR 4/4) broken face, dark brown (7.5YR 3/4) broken face, moist; duripan; rigid, rigid; Ksat of 0.01 um/s; impermeable permeability; very high excavation difficulty; 100 percent extremely coarse prominent platy strongly coherent cemented carbonate laminae with sharp boundaries at top of horizon; fragments; clear wavy boundary. Lab sample # 09N03354; dry when described; observed in pit, large or quarry
    3Bq—86 to 126 centimeters (33.9 to 49.6 inches); brown (7.5YR 4/4) broken face, dark brown (7.5YR 3/4) broken face, moist; duripan; moderately hard, firm; Ksat of 0.5 um/s; slow permeability; high excavation difficulty; 15 percent medium distinct threadlike strong brown (7.5YR 5/8), dry, manganese coatings with sharp boundaries infused into matrix along faces of peds; fragments; clear wavy boundary. Lab sample # 09N03355; moderately moist when described; observed in pit, large or quarry
    3Bt3—126 to 156 centimeters (49.6 to 61.4 inches); brown (7.5YR 4/4) broken face, dark brown (7.5YR 3/4) broken face, moist; loam; 25 percent clay; weak medium angular blocky structure; slightly hard, very friable, slightly sticky, moderately plastic; Ksat of 9 um/s; moderate permeability; low excavation difficulty; 1.0 very fine tubular pores; clay films on surfaces along root channels and prominent clay films on surfaces along pores and 50 percent prominent clay films on all faces of peds; 15 percent medium distinct threadlike strong brown (7.5YR 5/8), dry, manganese coatings with sharp boundaries infused into matrix along faces of peds; fragments; clear wavy boundary. Lab sample # 09N03356; moderately moist when described; observed in pit, large or quarry
    3Bt4—156 to 165 centimeters (61.4 to 65.0 inches); brown (7.5YR 4/3) broken face, dark brown (7.5YR 3/3) broken face, moist; clay loam; 31 percent clay; weak medium angular blocky structure; hard, friable, moderately sticky, moderately plastic; Ksat of 3 um/s; moderately slow permeability; moderate excavation difficulty; 1.0 very fine tubular pores; clay films on surfaces along root channels and prominent clay films on surfaces along pores and 50 percent prominent clay films on all faces of peds; 15 percent medium distinct threadlike strong brown (7.5YR 5/8), dry, manganese coatings with sharp boundaries infused into matrix along faces of peds; fragments. Lab sample # 09N03357; moderately moist when described; observed in pit, large or quarry