IDENTIFIERS

  • Current Taxon Name (Soil Name): Napa
  • OSD
  • Series Extent
  • User Site ID: S1995IA193026
  • User Pedon ID: S1995IA193026
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 96P0053
  • NCSS Pedon Lab Data NASIS Record ID - 68134
  • Print Date: 11/26/2024

    • 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: 42.3310013
  • Std. Longitude: -96.2156372
  • Datum: WGS84
  • Township: 87N
  • Range: 46W
  • Section: 20
  • PLSS Details: 910 feet E and 140 feet N of the SE corner
  • Location Description: Grange Twp.
  • State: Iowa
  • County: IA193—Woodbury
  • MLRA: 107—Iowa and Missouri Deep Loess Hills
  • Non-MLRA Soil Survey Area: IA193—Woodbury County, Iowa
  • 7.5 Minute USGS Quad: 42096-C2—Luton, Iowa

    • PEDON

  • Describers Name: PTC GWM
  • Current Taxonomic Class: Fine, smectitic, mesic Vertic Endoaquolls
  • Current Taxon Kind: taxadjunct
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 26
  • Correlated Information:
  • Soil Name - Napa
  • Classificaton Date - 1/27/2010
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Napa
  • Taxonomic Class - Fine, montmorillonitic, mesic Mollic Natraquert
  • Taxon Kind - series
  • Classificaton Date - 10/23/1995
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: river valley
  • Landform: flood plain
  • Drainage Class: very poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/23/1995 (actual site observation date)
  • Air Photo ID: 80
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    —

    —

    —

    —

    660

    —

    —

    9.4

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 13 centimeters (0.0 to 5.1 inches); black (N 2/0), very dark gray (7.5YR 3/1), dry; silty clay; moderate medium and coarse prismatic parts to weak and moderate fine subangular blocky structure; firm; 4.0 very fine roots throughout; 0.6 very fine tubular and 0.6 fine interstitial pores; distinct light brownish gray (2.5Y 6/2) coats on tops of soil columns; 1 percent fine light brownish gray (2.5Y 6/2) gypsum crystals, unspecified between peds; fragments; strong effervescence; moderately alkaline, pH 8.4, hellige-truog; abrupt smooth boundary. Lab sample # 96P00566. continuous - phpvsfiid 194550; continuous - phpvsfiid 194550
    Ap2—13 to 29 centimeters (5.1 to 11.4 inches); black (N 2/0), very dark gray (7.5YR 3/1), dry; silty clay; weak and moderate fine and medium subangular blocky structure; firm; 0.6 very fine roots throughout; 0.6 very fine interstitial and tubular pores; 1 percent light brownish gray (2.5Y 6/2) gypsum crystals, unspecified between peds and 1 percent fine and medium gypsum crystal clusters in cracks and 1 percent fine and medium irregular carbonate nodules between peds; fragments; slight effervescence; strongly alkaline, pH 8.6, hellige-truog; clear smooth boundary. Lab sample # 96P00567
    Btnyz1—29 to 51 centimeters (11.4 to 20.1 inches); very dark gray (10YR 3/1) silty clay; weak and moderate fine and medium subangular blocky structure; friable; 0.6 very fine roots throughout; 0.6 very fine tubular and 3.0 fine interstitial pores; 1 percent fine and medium irregular gypsum crystal clusters in cracks; fragments; strong effervescence; strongly alkaline, pH 8.6, hellige-truog; clear smooth boundary. Lab sample # 96P00568
    Btnyz2—51 to 71 centimeters (20.1 to 28.0 inches); very dark gray (10YR 3/1) silty clay; 1 percent dark yellowish brown (10YR 4/6) fine distinct mottles; moderate medium subangular blocky parts to moderate fine subangular blocky structure; friable; 4.0 very fine roots throughout; 4.0 very fine interstitial and tubular pores; 1 percent fine and medium irregular gypsum crystal clusters in cracks; fragments; strong effervescence; strongly alkaline, pH 8.6, hellige-truog; clear smooth boundary. Lab sample # 96P00569
    BC—71 to 94 centimeters (28.0 to 37.0 inches); grayish brown (2.5Y 5/2) silty clay; 1 percent dark yellowish brown (10YR 4/6) fine distinct and 2 percent yellowish brown (10YR 5/6) medium distinct mottles; moderate medium subangular blocky parts to weak fine subangular blocky structure; friable; 4.0 very fine roots throughout; 4.0 very fine and fine tubular pores; 25 percent very dark gray (10YR 3/1) organic stains in root channels and/or pores; 1 percent fine and medium irregular gypsum crystal clusters in cracks; fragments; strong effervescence; strongly alkaline, pH 8.6, hellige-truog; clear smooth boundary. Lab sample # 96P00570
    C1—94 to 123 centimeters (37.0 to 48.4 inches); light brownish gray (2.5Y 6/2) silty clay; 1 percent strong brown (7.5YR 4/6) fine distinct and 2 percent light yellowish brown (2.5Y 6/4) fine faint mottles; moderate medium prismatic parts to moderate medium subangular blocky structure; friable; 4.0 very fine and fine tubular pores; 25 percent very dark gray (10YR 3/1) organic stains in root channels and/or pores; fragments; strong effervescence; strongly alkaline, pH 8.5, hellige-truog; clear smooth boundary. Lab sample # 96P00571. At 41 and 48 inches were 1 1/2 and 1 inch bands of violently effervescent soft calcium carbonate masses imbedded with very hard irregular pieces of calcium carbonate concretions.
    C2—123 to 151 centimeters (48.4 to 59.4 inches); grayish brown (2.5Y 5/2) silt loam; 2 percent strong brown (7.5YR 4/6) medium distinct mottles; massive; friable; 4.0 very fine and fine tubular pores; 25 percent very dark gray (10YR 3/1) organic stains in root channels and/or pores; fragments; strong effervescence; strongly alkaline, pH 8.6, hellige-truog; clear smooth boundary. Lab sample # 96P00572. At 54 and 59 inches were 1/2 inch and 1 1/2 inch bands of violently effervescent soft of calcium carbonate masses imbedded with very hard irregular pieces of calcium carbonate concretions.
    C3—151 to 186 centimeters (59.4 to 73.2 inches); light olive brown (2.5Y 5/3) silt loam; 2 percent strong brown (7.5YR 4/6) coarse distinct mottles; massive; friable; 4.0 very fine and fine tubular pores; 25 percent very dark gray (10YR 3/1) organic stains in root channels and/or pores; fragments; strong effervescence; moderately alkaline, pH 8.4, hellige-truog; clear smooth boundary. Lab sample # 96P00573
    C4—186 to 203 centimeters (73.2 to 79.9 inches); grayish brown (2.5Y 5/2) silt loam; 1 percent brown (7.5YR 4/4) fine and medium distinct and 2 percent strong brown (7.5YR 4/6) medium distinct mottles; massive; friable; 4.0 very fine and fine tubular pores; 25 percent very dark gray (10YR 3/1) organic stains in root channels and/or pores; fragments; strong effervescence; moderately alkaline, pH 8.2, hellige-truog; clear smooth boundary. Lab sample # 96P00574