IDENTIFIERS

  • Current Taxon Name (Soil Name): Auburn
  • OSD
  • Series Extent
  • User Site ID: S2003CA632013
  • User Pedon ID: S04CA099-004
  • Vegetation Plot ID: S2003CA632013
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 05N0395
  • NCSS Pedon Lab Data NASIS Record ID - 17672
  • Print Date: 2/16/2025

    • 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: 37.9382515
  • Std. Longitude: -120.7826080
  • Datum: WGS84
  • Township: 1 N.
  • Range: 11 E.
  • Section: 17
  • PLSS Details: About 260 meters (850 feet) west and 710 meters (2,330 feet) south of the northeast corner
  • Location Description: The site is about 820 meters (2,700 feet) west of the boundary line between Stanislaus a d Calaveras Counties on the northern side of Hwy. 4 and about 10 meters (30 feet) south of the right-of-way fence.
  • Map Unit: 751—Auburn silt loam, 5 to 15 percent slopes
  • Country: US—United States
  • State: California
  • County: CA099—Stanislaus
  • MLRA: 17—Sacramento and San Joaquin Valleys
  • Regional Office: SW—Southwest
  • Non-MLRA Soil Survey Area: CA632—Stanislaus County, California, Northern Part
  • 7.5 Minute USGS Quad: 37120-H7—Bachelor Valley, California

    • PEDON

  • Describers Name: JCR, TAC
  • Current Taxonomic Class: Loamy, mixed, superactive, thermic Lithic Haploxerepts
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Pedon #: 13
  • Correlated Information:
  • Soil Name - Auburn
  • PSC - 0 to 33 cm.
  • Classificaton Date - 12/23/2015
  • Classifier - Andrew Paolucci
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Auburn
  • Classificaton Date - 7/8/2003
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loamy colluvium derived from volcanic sandstone
  • Landscape: hills
  • Landform: hillslope
  • Geomorphic Component Hills: side slope
  • Geomorphic Component Mountains: mountainbase
  • Hill Slope Profile: backslope
  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: indurated slight weathered schist, unspecified at 33cm with 10 to <45 and a strike of 225 degrees and a dip of 45 to 90 degrees
  • Geology: Gopher Ridge formation.
  • Surface Fragments: 2.00 percent subrounded indurated 2- to 76-millimeter metamorphic, unspecified, 1.00 percent rounded indurated 76- to 250-millimeter metamorphic, unspecified,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/8/2003 (actual site observation date)
  • Air Photo ID: 0418
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
  • Current Air Temp - 19
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    AVFA

    AVFA

    BRDI3

    BRDI3

    BRHOH

    BRHOH

    ERODI

    ERODI

    FEME

    FEME

    MEHI

    MEHI

    SECAL

    SECAL

    TACA8

    TACA8

    TRHI4

    TRHI4

    Avena fatua

    Avena fatua

    Bromus diandrus

    Bromus diandrus

    Bromus hordeaceus ssp. hordeaceus

    Bromus hordeaceus ssp. hordeaceus

    Erodium

    Erodium

    Festuca megalura

    Festuca megalura

    Medicago hispida

    Medicago hispida

    Secale

    Secale

    Taeniatherum caput-medusae

    Taeniatherum caput-medusae

    Trifolium hirtum

    Trifolium hirtum

    wild oat

    wild oat

    ripgut brome

    ripgut brome

    soft brome

    soft brome

    stork's bill

    stork's bill

    annual fescue

    annual fescue

    —

    —

    rye

    rye

    medusahead

    medusahead

    rose clover

    rose clover

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

    bedrock, lithic

    indurated

    33 - 41

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

    ochric epipedon

    cambic horizon

    lithic contact

    0—18

    10—33

    33—41

    —18—

    15—23—25

    —-
    Site Soil Temperature
    Site Obs. Date Depth Sensor Kind Temperature
    cm C

    7/8/2003

    33

    —

    26
    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

    11

    —

    —

    107

    —

    170

    406

    —

    275

    17

    23

    10

    —

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    CA5738

    Modesto

    TAPS
    A—0 to 10 centimeters (0.0 to 3.9 inches); dark yellowish brown (10YR 4/4), dark brown (10YR 3/3), moist; loam; 45 percent sand; 39 percent silt; 16 percent clay; moderate fine granular structure; moderately hard, very friable, nonsticky, nonplastic; moderate permeability; low excavation difficulty; 6.0 very fine roots throughout and 0.5 fine roots throughout; 7.0 medium tubular and 5.0 fine interstitial pores; 14 percent by volume subrounded indurated 2-5-76 millimeter metamorphic, unspecified fragments; moderately acid, pH 5.6; clear wavy boundary.; dry when described; observed in pit, small
    Bw1—10 to 25 centimeters (3.9 to 9.8 inches); strong brown (7.5YR 4/6), dark brown (7.5YR 3/3), moist; loam; 45 percent sand; 41 percent silt; 14 percent clay; moderate medium subangular blocky structure; very hard, friable, nonsticky, nonplastic; moderate permeability; low excavation difficulty; 2.0 very fine roots throughout; 5.0 very fine dendritic tubular and 6.0 medium tubular pores; 10 percent by volume subrounded indurated 2-20-76 millimeter metamorphic, unspecified fragments; moderately acid, pH 6.0; clear wavy boundary.; dry when described; observed in pit, small
    Bw2—25 to 33 centimeters (9.8 to 13.0 inches); reddish brown (5YR 4/4), dark reddish brown (5YR 3/3), moist; gravelly fine sandy loam; 45 percent sand; 41 percent silt; 14 percent clay; moderate medium subangular blocky structure; hard, friable, nonsticky, nonplastic; moderately rapid permeability; low excavation difficulty; 1.0 very fine roots throughout; 5.0 very fine dendritic tubular pores; 18 percent by volume subangular indurated 2-5-76 millimeter metamorphic, unspecified fragments; moderately acid, pH 6.0; abrupt irregular boundary.; dry when described; observed in pit, small
    R—33 centimeters (13.0 inches); grayish green (5G 5/2) broken face; fragments.; observed in pit, small