IDENTIFIERS

  • Current Taxon Name (Soil Name): Walvan
  • OSD
  • Series Extent
  • User Site ID: S2016WA001001
  • User Pedon ID: S2016WA001001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • User Project ID: FY18-1PAS-001
  • Project Name: MLRA 8 - Walvan series - Walla Walla County
  • Print Date: 12/7/2025

    • 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: 46.8413000
  • Std. Longitude: -118.0586300
  • Datum: WGS84
  • GPS - Positional Error: 13.40
  • Township: 16N
  • Range: 38E
  • Section: 29
  • Location Description: Buckley Road—5.3 miles north of State Highway 26—up draw approximately 0.20 miles to site
  • State: Washington
  • County: WA001—Adams
  • MLRA: 8—Columbia Plateau
  • MLRA Soil Survey Area: NW-PAS—Pasco, Washington
  • Non-MLRA Soil Survey Area: WA001—Adams County, Washington
  • 7.5 Minute USGS Quad: 46118-G1—Rattlesnake Canyon, Washington

    • PEDON

  • Describers Name: Keith Harrington
  • Current Taxonomic Class: Ashy, glassy, mesic Vitrandic Haploxerepts
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Walvan
  • Classificaton Date - 12/6/2018
  • Classifier - Keith Harrington
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Walvan
  • Taxonomic Class - Ashy, glassy, mesic Humic Vitrixerands
  • Taxon Kind - series
  • Classificaton Date - 8/3/2016
  • Classifier - Keith Harrington
  • Soil Taxonomic Edition - twelfth edition
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Pedon Vegetation and Crop Cover Information:
  • Range Veg. Canopy Type Dominant - none
  • Range Veg. Canopy Type Secondary - annual grass
  • Hydric: no


    • SITE

  • Parent Material: ash
  • Landscape: Walla Walla plateau on Columbia plateau
  • Landform: intermittent drainageway
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: toeslope
  • Slope Position: lower third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

  • Legacy Ecol. Site Name: Range Site 5 - Loamy 9-14

    • SITE OBSERVATION

  • Observation Date: 8/3/2016 (actual site observation date)
  • Data Collector: Keith Harrington, Taylor Johnson (pathways student)
  • 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
  • Current Weather - snow
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    volcanic glass

    0—150

    —-
    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

    14

    —

    —

    490

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 16 centimeters (0.0 to 6.3 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; ashy very fine sandy loam; 70 percent sand; 5 percent clay; weak fine granular structure; soft, very friable, nonsticky, nonplastic; low excavation difficulty; many very fine roots throughout and many fine roots throughout; many very fine interstitial and many fine interstitial pores; 0 percent by volume 75-125-250 millimeter unspecified fragments and 0 percent by volume 2-35-75 millimeter unspecified fragments and 0 percent by volume 250-425-600 millimeter unspecified fragments and 0 percent by volume 600-?-? millimeter unspecified fragments; noneffervescent; clear wavy boundary.; dry when described; observed in pit, small
    A2—16 to 25 centimeters (6.3 to 9.8 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; ashy very fine sandy loam; 80 percent sand; 3 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; low excavation difficulty; common very fine roots throughout and common fine roots throughout; common very fine interstitial and many very fine interstitial and common fine interstitial and many fine interstitial pores; 0 percent by volume 75-125-250 millimeter unspecified fragments and 0 percent by volume 2-35-75 millimeter unspecified fragments and 0 percent by volume 250-425-600 millimeter unspecified fragments and 0 percent by volume 600-?-? millimeter unspecified fragments; noneffervescent; gradual wavy boundary.; dry when described; observed in pit, small
    C1—25 to 71 centimeters (9.8 to 28.0 inches); pale brown (10YR 6/3), dark yellowish brown (10YR 4/4), moist; ashy very fine sandy loam; 85 percent sand; 3 percent clay; structureless massive; soft, very friable, nonsticky, nonplastic; low excavation difficulty; few very fine roots throughout and very few medium roots throughout and few fine roots throughout; common very fine interstitial and common fine interstitial pores; 0 percent by volume 75-125-250 millimeter unspecified fragments and 0 percent by volume 2-35-75 millimeter unspecified fragments and 0 percent by volume 250-425-600 millimeter unspecified fragments and 0 percent by volume 600-?-? millimeter unspecified fragments; noneffervescent; gradual wavy boundary.; dry when described; observed in pit, small
    C2—71 to 122 centimeters (28.0 to 48.0 inches); light gray (10YR 7/2), brown (10YR 5/3), moist; ashy very fine sandy loam; 85 percent sand; 3 percent clay; structureless massive; soft, very friable, nonsticky, nonplastic; low excavation difficulty; few very fine roots throughout and very few medium roots throughout and few fine roots throughout; common very fine interstitial and common fine interstitial pores; 0 percent by volume 75-125-250 millimeter unspecified fragments and 0 percent by volume 2-35-75 millimeter unspecified fragments and 0 percent by volume 250-425-600 millimeter unspecified fragments and 0 percent by volume 600-?-? millimeter unspecified fragments; noneffervescent; gradual wavy boundary.; dry when described; observed in pit, small
    C3—122 to 165 centimeters (48.0 to 65.0 inches); light gray (10YR 7/2), grayish brown (10YR 5/2), moist; ashy silt loam; 90 percent sand; 3 percent clay; structureless massive; soft, very friable, nonsticky, nonplastic; low excavation difficulty; few very fine roots throughout and very few medium roots throughout and few fine roots throughout; common very fine interstitial and common fine interstitial pores; 0 percent by volume 75-125-250 millimeter unspecified fragments and 0 percent by volume 2-35-75 millimeter unspecified fragments and 0 percent by volume 250-425-600 millimeter unspecified fragments and 0 percent by volume 600-?-? millimeter unspecified fragments; noneffervescent.; dry when described; observed in pit, small