IDENTIFIERS

  • Current Taxon Name (Soil Name): Arvada
  • OSD
  • Series Extent
  • User Site ID: S1991CO123004
  • User Pedon ID: 91CO123004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 91P0868
  • NCSS Pedon Lab Data NASIS Record ID - 63906
  • Print Date: 11/13/2024

    • 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: 40.8288879
  • Std. Longitude: -104.7450027
  • Datum: WGS84
  • Township: 10N
  • Range: 66W
  • Section: 13
  • PLSS Details: 500 feet N and 400 feet E of SW corner
  • State: Colorado
  • County: CO123—Weld
  • MLRA: 67—Central High Plains

    • PEDON

  • Describers Name: Al Price, Tom Reinsch
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 4
  • Sampled As Information:
  • Soil Name - Arvada
  • Taxonomic Class - Fine, montmorillonitic Ustollic Natrargids
  • PSC - 23 to 74 cm.
  • Classificaton Date - 7/1/1991
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: playa or alluvial flat
  • Slope Position: depression on a slope
  • Slope Shape Down: concave
  • Runoff: very low
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/1/1991 (actual site observation date)
  • Microrelief Kind: microdepression
  • Microrelief Elevation: 10
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    albic horizon

    natric horizon

    argillic horizon

    0—8

    23—81

    23—137

    —-

    —-

    —-
    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

    —

    —

    1631

    —

    90

    30

    —

    —

    6

    22

    1

    6

    22

    1

    —

    —

    —

    —

    —
    E—0 to 3 centimeters (0.0 to 1.2 inches); light gray (10YR 7/2), dark yellowish brown (10YR 4/4), moist; sandy clay loam; moderate fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 2.5 fine roots throughout; 2.5 very fine and fine tubular pores; fragments; strongly alkaline, pH 8.5, hellige-truog; abrupt smooth boundary. Lab sample # 91P05255. common fine roots throughout
    Ey—3 to 8 centimeters (1.2 to 3.1 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; clay loam; moderate coarse subangular blocky structure; hard, very firm, moderately sticky, moderately plastic; 5.5 very fine and fine roots between peds; 2.5 very fine and fine tubular pores; 11 percent fine and medium threadlike salt masses; fragments; strongly alkaline, pH 8.8, hellige-truog; abrupt smooth boundary. Lab sample # 91P05256. common fine and medium salt masses concentrations; many very fine and fine roots between peds
    Btny1—8 to 23 centimeters (3.1 to 9.1 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; clay; weak coarse columnar, and moderate medium subangular blocky structure; hard, firm, moderately sticky, very plastic; 5.5 very fine and fine roots between peds and 5.5 medium roots between peds; 2.5 very fine and fine interstitial and tubular pores; 15 percent faint clay films on faces of peds; 11 percent fine and medium irregular salt masses; fragments; slight effervescence; strongly alkaline, pH 8.6, hellige-truog; clear smooth boundary. Lab sample # 91P05257. common fine and medium salt masses concentrations; few clay films surface features on faces of peds; many very fine and fine roots between peds; many medium roots between peds; effervescence is discontinuous; patchy - phpvsfiid 234246; patchy - phpvsfiid 234246
    Btny2—23 to 51 centimeters (9.1 to 20.1 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; clay; weak medium and coarse subangular blocky structure; very hard, firm, very sticky, very plastic; 5.5 very fine and fine roots between peds and 5.5 fine roots between peds; 2.5 very fine and fine interstitial and tubular pores; 2 percent faint clay films on faces of peds and 15 percent faint clay films in root channels and/or pores; 11 percent fine and medium threadlike salt masses and 11 percent medium threadlike gypsum masses; fragments; strong effervescence; strongly alkaline, pH 8.6, hellige-truog; clear wavy boundary. Lab sample # 91P05258. common fine and medium salt masses concentrations; common medium masses of gypsum concentrations; very few clay films surface features on faces of peds; few clay films surface features in root channels and/or pores; many very fine and fine roots between peds; many fine roots between peds; discontinuous - phpvsfiid 234247; patchy - phpvsfiid 234248; discontinuous - phpvsfiid 234247; patchy - phpvsfiid 234248
    Btny3—51 to 66 centimeters (20.1 to 26.0 inches); pale brown (10YR 6/3), yellowish brown (10YR 5/4), moist; clay; weak coarse subangular blocky structure; hard, firm, very sticky, very plastic; 2.5 fine roots throughout; 2.5 very fine and fine interstitial and tubular pores; 2 percent faint clay films on faces of peds and 15 percent faint clay films in root channels and/or pores; 11 percent fine and medium threadlike gypsum masses and 11 percent fine and medium spherical salt masses; fragments; strong effervescence; strongly alkaline, pH 8.8, hellige-truog; clear smooth boundary. Lab sample # 91P05259. common fine and medium masses of gypsum concentrations; common fine and medium salt masses concentrations; few clay films surface features in root channels and/or pores; very few clay films surface features on faces of peds; common fine roots throughout; discontinuous - phpvsfiid 234249; patchy - phpvsfiid 234250; discontinuous - phpvsfiid 234249; patchy - phpvsfiid 234250
    Btny4—66 to 81 centimeters (26.0 to 31.9 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; clay; weak coarse subangular blocky structure; very hard, firm, very sticky, very plastic; 2.5 fine roots throughout; 2.5 fine interstitial and tubular pores; 2 percent faint clay films in root channels and/or pores and 15 percent faint clay films on faces of peds; 11 percent fine threadlike gypsum masses and 11 percent fine and medium threadlike salt masses; fragments; strong effervescence; strongly alkaline, pH 8.8, hellige-truog; clear smooth boundary. Lab sample # 91P05260. common fine and medium salt masses concentrations; common fine masses of gypsum concentrations; very few clay films surface features in root channels and/or pores; few clay films surface features on faces of peds; common fine roots throughout; patchy - phpvsfiid 234251; patchy - phpvsfiid 234252; patchy - phpvsfiid 234251; patchy - phpvsfiid 234252
    Btkny—81 to 137 centimeters (31.9 to 53.9 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; clay loam; weak coarse subangular blocky structure; very hard, firm, very sticky, very plastic; 0.5 very fine and fine roots between peds; 5.5 very fine and fine interstitial and tubular pores; 2 percent faint clay films in root channels and/or pores; 11 percent fine and medium irregular gypsum threads and 11 percent fine and medium irregular salt masses; fragments; strong effervescence; strongly alkaline, pH 8.8, hellige-truog; clear smooth boundary. Lab sample # 91P05261. and 91P5262; common fine and medium salt masses concentrations; common fine and medium gypsum threads concentrations; very few clay films surface features in root channels and/or pores; few very fine and fine roots between peds; patchy - phpvsfiid 234253; patchy - phpvsfiid 234253
    Bkny—137 to 160 centimeters (53.9 to 63.0 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; clay loam; massive; very hard, very firm, very sticky, very plastic; 2.5 fine roots throughout; 2.5 fine interstitial and tubular pores; 11 percent fine irregular salt masses and 1 percent fine irregular gypsum threads; fragments; strong effervescence; strongly alkaline, pH 8.8, hellige-truog; clear smooth boundary. Lab sample # 91P05263. this horizon contains 25% discontinuous lenses of loamy material .5-1cm thick; common fine salt masses concentrations; few fine gypsum threads concentrations; common fine roots throughout
    Bnyg—160 to 188 centimeters (63.0 to 74.0 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; sandy clay loam; 11 percent olive yellow (5Y 6/6) fine prominent mottles; massive; hard, friable, moderately sticky, moderately plastic; 2.5 fine roots throughout; 2.5 fine interstitial and tubular pores; 11 percent fine irregular gypsum threads and 11 percent fine and medium irregular salt masses; fragments; strong effervescence; strongly alkaline, pH 8.8, hellige-truog; abrupt wavy boundary. Lab sample # 91P05264. common fine gypsum threads concentrations; common fine and medium salt masses concentrations; common fine roots throughout; common fine prominent 5Y66 mottles
    Ayb—188 to 216 centimeters (74.0 to 85.0 inches); grayish brown (10YR 5/2), dark grayish brown (10YR 4/2), moist; clay; massive; very hard, very firm, very sticky, very plastic; 0.5 fine roots throughout; 0.5 fine interstitial and tubular pores; 11 percent fine irregular salt masses and 11 percent fine and medium irregular gypsum threads; fragments; slight effervescence; strongly alkaline, pH 8.6, hellige-truog. Lab sample # 91P05265. common fine and medium gypsum threads concentrations; common fine salt masses concentrations; few fine roots throughout