IDENTIFIERS

  • Current Taxon Name (Soil Name): Westfan
  • OSD
  • Series Extent
  • User Site ID: S1989CA011004
  • User Pedon ID: 89CA011004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 89P0065
  • NCSS Pedon Lab Data NASIS Record ID - 61170
  • Print Date: 11/21/2024

    • 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: 39.1444435
  • Std. Longitude: -122.1277771
  • Datum: WGS84
  • Township: 15N
  • Range: 2W
  • Section: 19
  • PLSS Details: 3200 feet W and 720 feet S of NE corner
  • State: California
  • County: CA011—Colusa
  • MLRA: 17—Sacramento and San Joaquin Valleys

    • PEDON

  • Describers Name: C. Jett and W. Reed.
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, thermic Pachic Haploxerolls
  • 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
  • Pedon #: 4
  • Correlated Information:
  • Soil Name - Westfan
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/11/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Westfan
  • Taxonomic Class - Fine-loamy, mixed, thermic Pachic Argixeroll
  • Taxon Kind - series
  • Classificaton Date - 10/1/1989
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: flood plain
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: moderately well
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/1989 (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
  • Site Erosion Accelerated: water erosion
    • Pedon Horizon Lab Results - 1
    Horizon Top Depth Bottom Depth Sample ID Data Collector Total Clay CaCO3 Clay Total Silt Fine Silt Co. Silt Total Sand Total Sand Method VC Sand Co. Sand Med. Sand Fine Sand VF Sand VF Sand Method Texture Class - Field Lab Rubbed Fiber Unrubbed Fiber pH H2O
    cm cm % % % % % % % % % % % % %

    Ap2

    Bt

    2Btk

    2Bk1

    2Bk2

    10

    36

    61

    84

    107

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    6.8

    7.3

    7.8

    7.8

    7.9
    Pedon Horizon Lab Results - 2
    Horizon Top Depth Bottom Depth Sample ID pH CaCl2 pH NaF pH Ox Delta pH LL PL PI Atter. Samp. Cond. COLE Pot. Acidity Ca + Mg - Meh 2 K Ca + Mg - Sat. Paste KCl Extract. Acidity Base Sat. - Meh 2 CEC-7 CEC-8.2
    cm cm % % % cm/cm meq/100g cmol(+)/kg cmol(+)/kg mmol(+)/l cmol(+)/kg % cmol(+)/kg cmol(+)/kg

    Ap2

    Bt

    2Btk

    2Bk1

    2Bk2

    10

    36

    61

    84

    107

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    Pedon Horizon Lab Results - 3
    Horizon Top Depth Bottom Depth Sample ID ECEC Phosphate P NO3-N EC EC Method EC 1:5 by volume CaCO3 Equiv. Equiv. Gypsum Na SAR Gypsum Req. Humic Color Fulvic Color Humic + Fulvic Color Al PI Pyro. Hue PyrO. Value Pyro. Chroma
    cm cm cmol(+)/kg mg/kg mg/kg dS/m dS/m % % mmol(+)/l % L-pcu/g L-pcu/g L-pcu/g %

    Ap2

    Bt

    2Btk

    2Bk1

    2Bk2

    10

    36

    61

    84

    107

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

    mollic epipedon

    argillic horizon

    0—61

    36—61

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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

    1

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    24

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    45

    38

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    16

    25

    7

    18

    27

    11

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    9677

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    Ap1—0 to 10 centimeters (0.0 to 3.9 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; loam; 18 percent clay; massive; slightly hard, friable, slightly sticky, slightly plastic; 5.5 very fine roots throughout; 5.5 very fine and fine interstitial pores; fragments; neutral, pH 6.8, pH meter; abrupt smooth boundary. Lab sample # 89P00634; dry when described;. many very fine roots throughout
    Ap2—10 to 36 centimeters (3.9 to 14.2 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; loam; moderate medium prismatic, and moderate coarse prismatic, and weak medium angular blocky structure; hard, friable, slightly sticky, slightly plastic; 5.5 very fine roots throughout; 5.5 very fine and fine interstitial pores; fragments; ultra acid, pH 2.0, hellige-truog; clear smooth boundary. Lab sample # 89P00635; dry when described;. many very fine roots throughout
    Bt—36 to 61 centimeters (14.2 to 24.0 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; loam; weak coarse prismatic, and moderate fine angular blocky structure; hard, friable, slightly sticky, moderately plastic; 2.5 very fine roots throughout; 2.5 very fine discontinuous tubular pores; faint clay films on faces of peds and in pores; fragments; ultra acid, pH 2.5, hellige-truog; clear smooth boundary. Lab sample # 89P00636; dry when described;. common very fine roots throughout; continuous - phpvsfiid 223780; continuous - phpvsfiid 223780
    2Btk—61 to 84 centimeters (24.0 to 33.1 inches); yellowish brown (10YR 5/4), dark brown (10YR 3/3), moist; loam; strong medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 2.5 very fine discontinuous tubular pores; 37 percent distinct clay films on faces of peds and in pores; fragments; strong effervescence, by hcl, 1n; ultra acid, pH 2.2, hellige-truog; clear smooth boundary. Lab sample # 89P00637; dry when described;. common clay films surface features on faces of peds and in pores; few very fine roots throughout; effervescence is continuous
    2Bk1—84 to 107 centimeters (33.1 to 42.1 inches); 50 percent yellowish brown (10YR 5/4) and 50 percent light yellowish brown (10YR 6/4), dark yellowish brown (10YR 4/4), moist; sandy loam; massive; slightly hard, very friable, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 2.5 very fine discontinuous tubular and 0.5 very fine interstitial pores; fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog; clear smooth boundary. Lab sample # 89P00638; dry when described;. few very fine roots throughout; effervescence is continuous
    2Bk2—107 to 140 centimeters (42.1 to 55.1 inches); brown (10YR 5/3), brown (10YR 4/3), moist; fine sandy loam; massive; slightly hard, very friable, slightly sticky, nonplastic; 0.5 very fine roots throughout; 0.5 very fine interstitial pores; fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.4, hellige-truog; gradual smooth boundary. Lab sample # 89P00639; moist when described;. few very fine roots throughout; effervescence is continuous
    2Bk3—140 to 175 centimeters (55.1 to 68.9 inches); light yellowish brown (10YR 6/4), 50 percent dark brown (10YR 3/3) and 50 percent brown (10YR 4/3), moist; sandy loam; 18 percent clay; massive; hard, very friable, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 0.5 very fine interstitial pores; fragments; gradual wavy boundary. Lab sample # 89P00640; moist when described;. few very fine roots throughout
    3Bk1—175 to 234 centimeters (68.9 to 92.1 inches);, dark yellowish brown (10YR 4/4), moist; clay loam; massive; very hard, very friable, moderately sticky, moderately plastic; fragments; extremely acid, pH 3.8, hellige-truog; gradual smooth boundary. Lab sample # 89P00641; moist when described;. only partially described due to depth and moisture; all sample sent to lab
    3Bk2—234 to 249 centimeters (92.1 to 98.0 inches);, yellowish brown (10YR 5/4), moist; clay; massive; very hard, firm, moderately sticky, very plastic; fragments; extremely acid, pH 4.4, hellige-truog. Lab sample # 89P00642; moist when described;. only partially described due to depth and moisture; all sample sent to lab