IDENTIFIERS

  • Current Taxon Name (Soil Name): Millvilla
  • OSD
  • Series Extent
  • User Site ID: 06-SMM-007
  • User Pedon ID: S2007CA109005
  • Vegetation Plot ID: 06-SMM-007
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 07N0474
  • NCSS Pedon Lab Data NASIS Record ID - 19077
  • Print Date: 4/19/2024

    • 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: 37.9579430
  • Std. Longitude: -120.3897781
  • Datum: WGS84
  • Township: 1 N
  • Range: 14 E
  • Section: 12
  • PLSS Details: about 1,570 feet east and 3,250 feet south of the northwest corner
  • Location Description: about 1.3 miles south of southwest of Sonora, California
  • Map Unit: 7212—Wardsferry-Millvilla complex, 30 to 60 percent slopes
  • Country: US—United States
  • State: California
  • County: CA109—Tuolumne
  • MLRA: 18—Sierra Nevada Foothills
  • Non-MLRA Soil Survey Area: CA630—Central Sierra Foothills Area, California, Parts of Calaveras and Tuolumne Counties
  • 7.5 Minute USGS Quad: 37120-H4—Sonora, California

    • PEDON

  • Describers Name: Sue Malone
  • Current Taxonomic Class: Coarse-loamy, mixed, superactive, thermic Typic Haploxerepts
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Millvilla
  • PSC - 25 to 99 cm.
  • Classificaton Date - 12/28/2015
  • Classifier - Andrew Paolucci
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Millvilla
  • Classificaton Date - 10/3/2006
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: colluvium derived from argillite and/or colluvium derived from siltstone over residuum weathered from argillite and/or residuum weathered from siltstone
  • Landscape: foothills
  • Landform: hillslope
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Complexity: simple
  • Slope Shape Across: concave
  • Slope Shape Down: linear
  • Drainage Class: well
  • Bedrock: moderately coherent moderate weathered siltstone, unspecified at 99cm with 10 to <45
  • Geology: Sullivan Terrane member of the Calaveras Complex formation in the Calaveras Complex group.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/3/2006 (actual site observation date)
  • Plant Association Name: Interior Live Oak - Chaparral
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - shrub cover
  • Site Obs. Cover Kind 2 - native shrubs
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - partly cloudy
  • Current Air Temp - 19
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    QUWI2

    HEAR5

    ARVI4

    TODI

    PRIL

    Quercus wislizeni

    Heteromeles arbutifolia

    Arctostaphylos viscida

    Toxicodendron diversilobum

    Prunus ilicifolia

    interior live oak

    toyon

    sticky whiteleaf manzanita

    Pacific poison oak

    hollyleaf cherry

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    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, paralithic

    moderately coherent

    99 - 203

    - 104 -

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

    ochric epipedon

    cambic horizon

    paralithic contact

    0—18

    10—99

    99—

    —10—

    —10—

    —-
    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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    —

    536

    —

    120

    686

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    195

    16

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    A—0 to 10 centimeters (0.0 to 3.9 inches); yellowish red (5YR 5/6) broken face, dark reddish brown (5YR 3/4) crushed, moist; loam; 40 percent sand; 48 percent silt; 12 percent clay; weak fine subangular blocky, and weak medium subangular blocky structure; soft, friable, slightly sticky, slightly plastic; low excavation difficulty; 3.0 very fine roots throughout and 0.8 medium roots throughout and 3.0 fine roots throughout; 8.0 very fine irregular and 0.8 fine tubular pores; 2 percent by volume very strongly coherent cemented 2-?-10 millimeter siltstone, unspecified fragments and 3 percent by volume indurated 10-?-40 millimeter quartzite fragments; moderately acid, pH 5.8, hellige-truog; clear wavy boundary. Lab sample # 07N03108; observed in pit, small
    Bw—10 to 48 centimeters (3.9 to 18.9 inches); yellowish red (5YR 5/6) broken face and yellowish red (5YR 4/6) crushed, dark red (2.5YR 3/6) crushed, moist; loam; 40 percent sand; 48 percent silt; 12 percent clay; weak medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; low excavation difficulty; 3.0 very fine roots throughout and 3.0 medium roots throughout and 3.0 fine roots throughout and 0.8 coarse roots throughout; 8.0 very fine irregular and 3.0 medium tubular and 8.0 fine tubular pores; 10 percent faint light yellowish brown (10YR 6/4) silt coats; 2 percent by volume nonflat angular indurated 76-?-150 millimeter quartzite fragments and 10 percent by volume very strongly coherent cemented 2-?-10 millimeter siltstone, unspecified fragments; slightly acid, pH 6.5, hellige-truog; gradual wavy boundary. Lab sample # 07N03109; observed in pit, small
    Bt1—48 to 84 centimeters (18.9 to 33.1 inches); yellowish red (5YR 5/6) broken face and yellowish red (5YR 4/6) crushed, dark red (2.5YR 3/6) crushed, moist; loam; 45 percent sand; 41 percent silt; 18 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; low excavation difficulty; 3.0 very fine roots throughout and 3.0 medium roots throughout and 3.0 fine roots throughout and 0.8 coarse roots throughout; 3.0 medium tubular and 3.0 fine irregular and 0.1 fine tubular pores; 2 percent faint clay films on surfaces along pores and 5 percent faint clay bridges on all faces of peds and 15 percent faint light yellowish brown (10YR 6/4), dry, silt coats on all faces of peds; 5 percent by volume moderately coherent cemented 76-?-250 millimeter siltstone, unspecified fragments and 5 percent by volume very strongly coherent cemented 2-?-75 millimeter schist, unspecified fragments and 5 percent by volume moderately coherent cemented 2-?-75 millimeter schist, unspecified fragments; slightly acid, pH 6.3, hellige-truog; gradual wavy boundary. Lab sample # 07N03110; observed in pit, small
    Bt2—84 to 94 centimeters (33.1 to 37.0 inches); yellowish red (5YR 5/6) broken face and yellowish red (5YR 4/6) crushed, dark red (2.5YR 3/6) crushed, moist; paracobbly loam; 50 percent sand; 32 percent silt; 18 percent clay; weak coarse subangular blocky, and weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; low excavation difficulty; 0.8 very fine roots around fragments and 0.8 fine roots around fragments; 0.8 very fine irregular and 0.8 fine irregular pores; 2 percent faint clay films on surfaces along pores and 5 percent faint clay bridges on all faces of peds and 20 percent faint light yellowish brown (10YR 6/4), dry, silt coats on all faces of peds; 5 percent by volume angular indurated 76-?-250 millimeter schist, unspecified fragments and 5 percent by volume indurated 2-?-5 millimeter schist, unspecified fragments and 10 percent by volume moderately coherent cemented 76-?-250 millimeter siltstone, unspecified fragments; slightly acid, pH 6.5, hellige-truog; clear irregular boundary. Lab sample # 07N03111; observed in pit, small
    BCt—94 to 99 centimeters (37.0 to 39.0 inches); dark red (2.5YR 3/6) very paracobbly loam; 50 percent sand; 34 percent silt; 16 percent clay; massive; hard, friable, slightly sticky, slightly plastic; moderate excavation difficulty; 0.8 very fine roots around fragments; 0.8 very fine irregular and 0.8 fine irregular pores; 2 percent faint clay films on surfaces along pores and 5 percent faint clay bridges on all faces of peds and 20 percent faint light yellowish brown (10YR 6/4), dry, silt coats on all faces of peds; 5 percent by volume very strongly coherent cemented 2-?-5 millimeter schist, unspecified fragments and 10 percent by volume angular very strongly coherent cemented 76-?-250 millimeter schist, unspecified fragments and 30 percent by volume moderately coherent cemented 76-?-250 millimeter siltstone, unspecified fragments; slightly acid, pH 6.5, hellige-truog; clear wavy boundary. Lab sample # 07N03112; observed in pit, small
    Cr—99 to 200 centimeters (39.0 to 78.7 inches); bedrock; massive; moderately coherent; moderate excavation difficulty; 0.8 medium roots in cracks and 0.8 fine roots in cracks; fragments. Lab sample # 07N03113; observed in pit, small