IDENTIFIERS

  • Current Taxon Name (Soil Name): Occoquan
  • OSD
  • Series Extent
  • User Site ID: S1981MD027001
  • User Pedon ID: S1981MD027001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 82P0479
  • NCSS Pedon Lab Data NASIS Record ID - 51266
  • 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: 39.2380667
  • Std. Longitude: -76.8628722
  • Datum: WGS84
  • Location Description: county park; off MD. RT. 108; about 1 mile west of MD 29
  • State: Maryland
  • County: MD027—Howard
  • MLRA: 148—Northern Piedmont
  • Regional Office: SE—Southeast
  • MLRA Soil Survey Area: NE-FRE—Frederick, Maryland
  • Non-MLRA Soil Survey Area: MD027—Howard County, Maryland

    • PEDON

  • Current Taxonomic Class: Fine-loamy, mixed, semiactive, mesic Ultic Hapludalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Occoquan
  • PSC - 20 to 39 cm.
  • Classificaton Date - 1/11/2013
  • Classifier - David Verdone
  • Soil Taxonomic Edition - eleventh edition
  • Sampled As Information:
  • Soil Name - OCCOQUON
  • Classificaton Date - 10/5/1981
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: level 1


    • SITE

  • Drainage Class: somewhat excessively
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/5/1981 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    paralithic contact

    0—20

    20—39

    70—120

    —-

    —-

    —-
    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

    5

    —

    —

    —

    —

    0

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); brown (7.5YR 4/4) loam; moderate medium granular structure; friable; 7 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter gneiss fragments observed by weighed method; moderately acid, pH 5.6, unspecified; abrupt wavy boundary. Lab sample # 82P02392
    Bt—20 to 39 centimeters (7.9 to 15.4 inches); reddish brown (5YR 5/4) loam; moderate fine and medium subangular blocky structure; friable; 11 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter gneiss fragments observed by weighed method; moderately acid, pH 5.8, unspecified; clear wavy boundary. Lab sample # 82P02393
    BC—39 to 55 centimeters (15.4 to 21.7 inches); strong brown (7.5YR 5/6) coarse sandy loam; weak medium subangular blocky structure; friable; 11 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter gneiss fragments observed by weighed method; slightly acid, pH 6.4, unspecified; gradual wavy boundary. Lab sample # 82P02394
    C—55 to 77 centimeters (21.7 to 30.3 inches); yellowish red (5YR 5/6) coarse sandy loam; friable; 10 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter gneiss fragments observed by weighed method; neutral, pH 6.6, unspecified; gradual irregular boundary. Lab sample # 82P02395
    Cr—77 to 120 centimeters (30.3 to 47.2 inches); strong brown (7.5YR 5/6) loamy coarse sand; friable; 11 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter gneiss fragments observed by weighed method; slightly acid, pH 6.4, unspecified. Lab sample # 82P02396