IDENTIFIERS

  • Current Taxon Name (Soil Name): Occoquan
  • OSD
  • Series Extent
  • User Site ID: S1986MD031004
  • User Pedon ID: S1986MD031004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 86P0896
  • NCSS Pedon Lab Data NASIS Record ID - 59190
  • Print Date: 11/21/2024

    • 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: 39.1734806
  • Std. Longitude: -77.0513250
  • Datum: WGS84
  • Location Description: About 2400 feet E on Gold Mine road from intersection of Georgia Ave.; 400 feet S of Gold Mine road in hayfield.
  • Map Unit: 2B—Glenelg silt loam, 3 to 8 percent slopes
  • State: Maryland
  • County: MD031—Montgomery
  • MLRA: 148—Northern Piedmont
  • Regional Office: SE—Southeast
  • MLRA Soil Survey Area: NE-FRE—Frederick, Maryland

    • PEDON

  • Describers Name: James H. Brown, Steve T. Dyer
  • Current Taxonomic Class: Fine-loamy, mixed, mesic Typic Endoaqualfs
  • Current Taxon Kind: taxadjunct
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 4
  • Correlated Information:
  • Soil Name - Occoquan
  • Classificaton Date - 3/1/1992
  • Classifier - JB
  • Soil Taxonomic Edition - fifth edition
  • Sampled As Information:
  • Soil Name - Occoquan
  • Classificaton Date - 7/1/1986
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/1/1986 (actual site observation date)
  • 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

    ochric epipedon

    argillic horizon

    0—15

    15—36

    —-

    —-
    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

    4

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); brown (7.5YR 4/4) interior gravelly fine sandy loam; moderate fine and medium subangular blocky structure; friable; 5.5 fine and medium roots; 15 percent by volume 2-39-75 millimeter mixed fragments; slightly acid, pH 6.3, hellige-truog; clear wavy boundary. Lab sample # 86P05389. many fine and medium roots
    Bt—15 to 36 centimeters (5.9 to 14.2 inches); strong brown (7.5YR 5/6) interior loam; weak medium subangular blocky structure; friable; 2.5 fine and medium roots; faint , moist, clay films on faces of peds; fragments; moderately acid, pH 5.8, hellige-truog; clear irregular boundary. Lab sample # 86P05390. common fine and medium roots; patchy - phpvsfiid 1080879; patchy - phpvsfiid 1080879
    BC—36 to 64 centimeters (14.2 to 25.2 inches); strong brown (7.5YR 5/8) interior and yellowish brown (10YR 5/6) interior fine sandy loam; massive; friable; 0.5 medium roots; faint , moist, clay films on faces of peds; fragments; moderately acid, pH 5.8, hellige-truog; gradual irregular boundary. Lab sample # 86P05391. few medium roots; patchy - phpvsfiid 1080880; patchy - phpvsfiid 1080880
    C1—64 to 91 centimeters (25.2 to 35.8 inches); very pale brown (10YR 7/4) interior and yellowish brown (10YR 5/4) interior and reddish yellow (7.5YR 6/8) interior fine sandy loam; massive; friable; 0.5 fine roots; 5 percent by volume 2-39-75 millimeter mixed fragments; moderately acid, pH 5.8, hellige-truog; gradual irregular boundary. Lab sample # 86P05392. few fine roots
    C2—91 to 163 centimeters (35.8 to 64.2 inches); very pale brown (10YR 7/3) interior and brown (10YR 5/3) interior channery sandy loam; firm; fragments; moderately acid, pH 5.8, hellige-truog. Lab sample # 86P05393. Inherent rock structure. 25 percent flagstones.