IDENTIFIERS

  • Current Taxon Name (Soil Name): Huntington
  • OSD
  • Series Extent
  • User Site ID: S2019MD031028
  • User Pedon ID: S2019MD031028
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 20N0354
  • User Project ID: 20-21fre
  • Project Name: MLRA 148 - Potomac River Legacy Sediments and Phosphorus Project
  • Print Date: 4/12/2026

    • 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: 39.0534472
  • Std. Longitude: -77.2902167
  • Datum: WGS84
  • Location Description: In a wooded area, about 1.8 miles southwest of Travilah, 0.7 mile south of River Road, near the Potomac River, on the Maryland side, in Montgomery County, Maryland
  • Map Unit: 48A—Melvin silt loam, 0 to 2 percent slopes, occasionally flooded
  • Country: US—United States
  • State: Maryland
  • County: MD031—Montgomery
  • MLRA: 148—Northern Piedmont
  • Regional Office: SE—Southeast
  • MLRA Soil Survey Area: NE-FRE—Frederick, Maryland
  • Non-MLRA Soil Survey Area: MD031—Montgomery County, Maryland
  • 7.5 Minute USGS Quad: 39077-A3—Seneca, Maryland

    • PEDON

  • Describers Name: Ben Marshall, Jason Martin, David Verdone
  • Current Taxonomic Class: Fine-silty, mixed, active, mesic Fluventic Hapludolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: NASIS
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium derived from metamorphic and sedimentary rock
  • Landscape: piedmont
  • Landform: flood plain
  • Geomorphic Component Terraces: tread
  • Hill Slope Profile: toeslope
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: occasional flooding for brief periods
  • Ponding: none ponding
  • Bedrock: serpentinite
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/24/2019 (actual site observation date)
  • Data Collector: Ben Marshall, Jason Martin, David Verdone
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - partly cloudy
  • Current Air Temp - 18
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    cambic horizon

    0—18

    40—78

    —18—

    —38—
    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

    —

    —

    50

    —

    190

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 17 centimeters (0.0 to 6.7 inches); very dark grayish brown (10YR 3/2) silt loam; 14 percent clay; fragments; slightly alkaline, pH 7.5, pH indicator solutions.; moist when described; observed in auger, bucket
    BA—17 to 40 centimeters (6.7 to 15.7 inches); brown (10YR 4/3) silt loam; 16 percent clay; fragments; slightly alkaline, pH 7.5, pH indicator solutions.; moist when described; observed in auger, bucket
    Bw—40 to 78 centimeters (15.7 to 30.7 inches); brown (10YR 4/3) silt loam; 16 percent clay; fragments; slightly alkaline, pH 7.5, pH indicator solutions.; moist when described; observed in auger, bucket
    Ab—78 to 90 centimeters (30.7 to 35.4 inches); brown (10YR 4/3) silt loam; 24 percent clay; fragments; slightly alkaline, pH 7.5, pH indicator solutions.; moist when described; observed in auger, bucket
    B'w1—90 to 133 centimeters (35.4 to 52.4 inches); brown (10YR 4/3) silt loam; 25 percent clay; 3 percent brown (10YR 4/3), moist, iron depletions and 10 percent yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; neutral, pH 7.0, pH indicator solutions.; moist when described; observed in auger, bucket
    Bw2—133 to 147 centimeters (52.4 to 57.9 inches); brown (10YR 4/3) silt loam; 16 percent clay; 5 percent dark grayish brown (10YR 4/2), moist, iron depletions and 8 percent strong brown (7.5YR 4/6), moist, masses of oxidized iron; fragments.; moist when described; observed in auger, bucket
    Bw3—147 to 178 centimeters (57.9 to 70.1 inches); dark yellowish brown (10YR 4/4) silt loam; 24 percent clay; 4 percent brown (7.5YR 4/2), moist, iron depletions on surfaces along root channels and 8 percent strong brown (7.5YR 4/6), moist, masses of oxidized iron; fragments; slightly acid, pH 6.5, pH indicator solutions.; moist when described; observed in auger, bucket
    Cg—178 to 200 centimeters (70.1 to 78.7 inches); brown (7.5YR 4/2) silt loam; 26 percent clay; 10 percent strong brown (7.5YR 4/6), moist, masses of oxidized iron; fragments.; moist when described; observed in auger, bucket