IDENTIFIERS

  • Current Taxon Name (Soil Name): Harpster
  • OSD
  • Series Extent
  • User Site ID: 1964IL179002
  • User Pedon ID: 1964IL179002
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - IL SCL
  • Lab Pedon # - 64IL179002
  • NCSS Pedon Lab Data NASIS Record ID - 20569
  • User Project ID: 201511AUR014
  • Project Name: SDJR - MLRA 108A - Harpster silty clay loam, 0 to 2 percent slopes
  • Print Date: 2/17/2025

    • 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: 40.3288059
  • Std. Longitude: -89.6436213
  • Datum: WGS84
  • Township: 22N
  • Range: 5W
  • Section: 27
  • Location Description: 45FT W of center Rt.29 & 91FT N of center of private lane of house on E
  • Map Unit: 67A—Harpster silty clay loam, 0 to 2 percent slopes
  • State: Illinois
  • County: IL179—Tazewell
  • MLRA: 108—Illinois and Iowa Deep Loess and Drift
  • MLRA Soil Survey Area: NC-AUR—Aurora, Illinois
  • Non-MLRA Soil Survey Area: IL179—Tazewell County, Illinois

    • PEDON

  • Describers Name: JDA, BWR, HLW
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Typic Calciaquolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: PedonPC
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Harpster
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/23/2015
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - aquic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Harpster
  • Taxonomic Class - Fine-silty, mixed, mesic Typic Calciaquolls
  • Taxon Kind - series
  • Classificaton Date - 11/1/1964
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: yes


    • SITE

  • Parent Material: calcareous loess
  • Drainage Class: poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/1/1964 (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
    • 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 % % % % % % % % % % % % %

    Akp

    A

    AB

    Bg1

    Bg2

    BCkg

    Cg1

    2Cg2

    0

    20

    36

    46

    69

    89

    107

    135

    20

    36

    46

    69

    89

    107

    135

    173

    IL19748

    IL19749

    IL19750

    IL19751

    IL19752

    IL19753

    IL19754

    IL19755

    —

    —

    —

    —

    —

    —

    —

    —

    32

    33

    36

    37

    28

    29

    15

    10

    —

    —

    —

    —

    —

    —

    —

    —

    60

    61

    60

    59

    68

    68

    76

    83

    37

    38

    36

    36

    36

    45

    32

    31

    22

    23

    24

    23

    31

    22

    44

    52

    6

    —

    4

    3

    3

    2

    7

    6

    —

    —

    —

    —

    —

    —

    —

    —

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    1

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    2

    —

    2

    1

    1

    —

    —

    —

    2

    2

    2

    2

    2

    3

    3

    2

    3

    4

    —

    —

    —

    —

    —

    —

    —

    —

    sicl

    sicl

    sicl

    sicl

    sicl

    sicl

    sil

    si

    —

    —

    —

    —

    —

    —

    —

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    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

    Akp

    A

    AB

    Bg1

    Bg2

    BCkg

    Cg1

    2Cg2

    0

    20

    36

    46

    69

    89

    107

    135

    20

    36

    46

    69

    89

    107

    135

    173

    IL19748

    IL19749

    IL19750

    IL19751

    IL19752

    IL19753

    IL19754

    IL19755

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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 %

    Akp

    A

    AB

    Bg1

    Bg2

    BCkg

    Cg1

    2Cg2

    0

    20

    36

    46

    69

    89

    107

    135

    20

    36

    46

    69

    89

    107

    135

    173

    IL19748

    IL19749

    IL19750

    IL19751

    IL19752

    IL19753

    IL19754

    IL19755

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    16

    11

    8

    5

    13

    19

    21

    27

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

    mollic epipedon

    calcic horizon

    cambic horizon

    0—46

    0—20

    46—107

    —46—

    —20—

    —61—
    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

    0

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    Akp—0 to 20 centimeters (0.0 to 7.9 inches); black (10YR 2/1) silty clay loam; moderate fine granular structure; friable; 25 percent by volume shell fragments fragments observed by visual inspection method; strong effervescence; moderately alkaline, pH 8.2; abrupt smooth boundary. Lab sample # IL19748
    A—20 to 36 centimeters (7.9 to 14.2 inches); black (10YR 2/1) silty clay loam; strong medium granular structure; friable; 25 percent by volume shell fragments fragments observed by visual inspection method; strong effervescence; moderately alkaline, pH 8.2; clear smooth boundary. Lab sample # IL19749
    AB—36 to 46 centimeters (14.2 to 18.1 inches); black (10YR 2/1) silty clay loam; moderate medium angular blocky structure; friable; 1 percent fine distinct yellowish brown (10YR 5/4), moist, masses of oxidized iron in matrix; 1 percent fine prominent light gray (10YR 7/1), moist, carbonate concretions throughout; fragments; slight effervescence; slightly alkaline, pH 7.6; clear smooth boundary. Lab sample # IL19750
    Bg1—46 to 69 centimeters (18.1 to 27.2 inches); variegated 50 percent gray (5Y 5/1) and 30 percent dark gray (5Y 4/1) and 10 percent yellowish brown (10YR 5/8) and 10 percent strong brown (7.5YR 5/8) silty clay loam; weak medium prismatic parts to weak medium angular blocky structure; friable; 25 percent fine black (7.5YR 2.5/1), moist, iron-manganese concretions throughout; 1 percent fine prominent light gray (10YR 7/1), moist, carbonate concretions throughout; fragments; slight effervescence; slightly alkaline, pH 7.6; clear smooth boundary. Lab sample # IL19751
    Bg2—69 to 89 centimeters (27.2 to 35.0 inches); variegated 50 percent gray (5Y 6/1) and 30 percent light olive gray (5Y 6/2) and 10 percent yellowish brown (10YR 5/6) silty clay loam; weak coarse angular blocky structure; friable; 1 percent fine black (7.5YR 2.5/1), moist, iron-manganese concretions throughout; fragments; strong effervescence; moderately alkaline, pH 8.2; clear smooth boundary. Lab sample # IL19752
    BCkg—89 to 107 centimeters (35.0 to 42.1 inches); variegated 50 percent gray (5Y 6/1) and 30 percent light olive gray (5Y 6/2) and 10 percent yellowish brown (10YR 5/6) and 10 percent strong brown (7.5YR 5/6) silt loam; weak coarse angular blocky structure; friable; 25 percent fine black (7.5YR 2.5/1), moist, iron-manganese concretions throughout; fragments; strong effervescence; moderately alkaline, pH 8.3; clear smooth boundary. Lab sample # IL19753
    Cg1—107 to 135 centimeters (42.1 to 53.1 inches); gray (5Y 5/1) silt loam; structureless massive; friable; 1 percent fine black (7.5YR 2.5/1), moist, iron-manganese concretions throughout and 1 percent coarse prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron in matrix; fragments; strong effervescence; moderately alkaline, pH 8.3; abrupt smooth boundary. Lab sample # IL19754
    2Cg2—135 to 173 centimeters (53.1 to 68.1 inches); dark greenish gray (10Y 4/1) silt; structureless massive; friable; 1 percent coarse prominent strong brown (7.5YR 5/8), moist, masses of oxidized iron in matrix and 1 percent medium prominent dark yellowish brown (10YR 4/4), moist, iron-manganese masses in matrix and 25 percent fine black (7.5YR 2.5/1), moist, iron-manganese concretions throughout; fragments; violent effervescence; moderately alkaline, pH 8.4. Lab sample # IL19755