IDENTIFIERS

  • Current Taxon Name (Soil Name): Conowingo
  • OSD
  • Series Extent
  • User Site ID: S1999MD510001
  • User Pedon ID: 99MD510001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 00P0091
  • NCSS Pedon Lab Data NASIS Record ID - 11599
  • Print Date: 12/4/2024

    • 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: 39.3245500
  • Std. Longitude: -76.7047889
  • Datum: WGS84
  • Location Description: Hillsdale plot site will EPS pit site w/cuenees of plot.
  • State: Maryland
  • County: MD510—Baltimore City
  • MLRA: 148—Northern Piedmont
  • Regional Office: SE—Southeast
  • MLRA Soil Survey Area: NE-FRE—Frederick, Maryland
  • Non-MLRA Soil Survey Area: MD510—City of Baltimore, Maryland

    • PEDON

  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Oxyaquic Vertic Hapludalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: research site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Conowingo
  • PSC - 28 to 78 cm.
  • Classificaton Date - 1/23/2013
  • Classifier - David Verdone
  • Soil Taxonomic Edition - eleventh edition
  • Sampled As Information:
  • Soil Name - Jackland
  • Classificaton Date - 9/27/1999
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: level 1


    • SITE

  • Hill Slope Profile: backslope
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/27/1999 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - intermixed conifers and hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Horizon Lab Results - 1
    Horizon Top Depth Bottom Depth Sample ID Data Collector Total Clay CaCO3 Clay Total Silt Fine Silt Co. Silt Total Sand Total Sand Method VC Sand Co. Sand Med. Sand Fine Sand VF Sand VF Sand Method Texture Class - Field Lab Rubbed Fiber Unrubbed Fiber pH H2O
    cm cm % % % % % % % % % % % % %

    2C/Bt

    109

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    24

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    Pedon Horizon Lab Results - 2
    Horizon Top Depth Bottom Depth Sample ID pH CaCl2 pH NaF pH Ox Delta pH LL PL PI Atter. Samp. Cond. COLE Pot. Acidity Ca + Mg - Meh 2 K Ca + Mg - Sat. Paste KCl Extract. Acidity Base Sat. - Meh 2 CEC-7 CEC-8.2
    cm cm % % % cm/cm meq/100g cmol(+)/kg cmol(+)/kg mmol(+)/l cmol(+)/kg % cmol(+)/kg cmol(+)/kg

    2C/Bt

    109

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    Pedon Horizon Lab Results - 3
    Horizon Top Depth Bottom Depth Sample ID ECEC Phosphate P NO3-N EC EC Method EC 1:5 by volume CaCO3 Equiv. Equiv. Gypsum Na SAR Gypsum Req. Humic Color Fulvic Color Humic + Fulvic Color Al PI Pyro. Hue PyrO. Value Pyro. Chroma
    cm cm cmol(+)/kg mg/kg mg/kg dS/m dS/m % % mmol(+)/l % L-pcu/g L-pcu/g L-pcu/g %

    2C/Bt

    109

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    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    strongly coherent

    144 - 169

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    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    lithic contact

    0—28

    28—91

    144—169

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    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

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    5

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    A—0 to 8 centimeters (0.0 to 3.1 inches); very dark grayish brown (2.5Y 3/2) silt loam; 11 percent clay; moderate fine granular structure; friable, slightly sticky, nonplastic; 21.0 fine roots and 0.5 coarse roots; 2 percent by volume 2-50-75 millimeter unspecified fragments observed by weighed method; abrupt smooth boundary. Lab sample # 00P00547; observed in pit, small
    Oi—3 to 0 centimeters (1.2 to 0.0 inches); fragments. Lab sample # 00P00546; observed in pit, small
    A/E—8 to 14 centimeters (3.1 to 5.5 inches); dark grayish brown (2.5Y 4/2) and grayish brown (2.5Y 5/2) silt loam; 10 percent clay; weak fine granular, and weak medium subangular blocky structure; friable, slightly sticky, nonplastic; 3.0 medium roots and 21.0 fine roots; 0.5 fine vesicular and 3.0 fine tubular pores; 3 percent by volume 2-50-75 millimeter unspecified fragments observed by weighed method; clear wavy boundary. Lab sample # 00P00548; observed in pit, small
    BE—14 to 25 centimeters (5.5 to 9.8 inches); yellowish brown (10YR 5/4) silt loam; 12 percent clay; weak fine subangular blocky structure; friable, slightly sticky, nonplastic; 3.0 medium roots and 21.0 fine roots; 0.5 fine vesicular and 3.0 fine tubular pores; 3 percent by volume 2-50-75 millimeter unspecified fragments observed by weighed method; clear wavy boundary. Lab sample # 00P00549; observed in pit, small. 5% A material along root channels.
    Bt1—25 to 46 centimeters (9.8 to 18.1 inches); yellowish brown (10YR 5/6) silt loam; 19 percent clay; moderate medium subangular blocky structure; friable, slightly sticky, slightly plastic; 3.0 medium roots and 3.0 fine roots; 0.5 fine tubular pores; 35 percent faint yellowish brown (10YR 5/4) clay films on faces of peds; 1 percent by volume 2-50-75 millimeter unspecified fragments observed by weighed method; clear wavy boundary. Lab sample # 00P00550; observed in pit, small. 5% A material along root channel.
    Bt2—46 to 69 centimeters (18.1 to 27.2 inches); dark yellowish brown (10YR 4/6) silty clay loam; 41 percent clay; moderate medium subangular blocky structure; firm, moderately sticky, moderately plastic; 3.0 medium roots and 3.0 fine roots and 0.5 coarse roots; 0.5 medium tubular and 3.0 fine vesicular pores; 75 percent faint clay films on faces of peds; 25 percent coarse grayish brown (2.5Y 5/2) iron depletions; 4 percent by volume 2-50-75 millimeter unspecified fragments observed by weighed method; clear wavy boundary. Lab sample # 00P00551; observed in pit, small. concentrations: M, 3%, 2, 5YR 3/2, wc.
    2Bt—69 to 88 centimeters (27.2 to 34.6 inches); 60 percent olive brown (2.5Y 4/4) and 40 percent reddish brown (5YR 4/4) clay; 70 percent clay; moderate coarse prismatic parts to moderate coarse angular blocky structure; very firm, very sticky, very plastic; 0.5 medium roots and 3.0 fine roots and 0.5 coarse roots; 0.5 medium tubular and 0.5 fine vesicular pores; 75 percent prominent iron stains on faces of peds and 75 percent distinct slickensides (pedogenic) on vertical faces of peds; 10 percent coarse grayish brown (2.5Y 5/2) iron depletions between peds; 15 percent ; fragments; gradual wavy boundary. Lab sample # 00P00552; observed in pit, small
    2BCt—88 to 109 centimeters (34.6 to 42.9 inches); strong brown (7.5YR 4/6) clay; 38 percent clay; moderate medium subangular blocky structure; very firm, moderately sticky, moderately plastic; 3.0 medium roots; 0.5 fine tubular pores; on faces of peds and on faces of peds and 10 percent prominent very dark gray (2.5Y 3/1) clay films on vertical faces of peds and 20 percent prominent very dark gray (2.5Y 3/1) slickensides (pedogenic) on vertical faces of peds; 10 percent fine and medium very pale brown (10YR 7/3); 1 percent by volume 2-50-75 millimeter unspecified fragments observed by weighed method; gradual wavy boundary. Lab sample # 00P00553; observed in pit, small
    2C/Bt—109 to 141 centimeters (42.9 to 55.5 inches); 70 percent strong brown (7.5YR 4/6) and 30 percent light olive brown (2.5Y 5/3) clay loam; 34 percent clay; massive, and weak medium subangular blocky; very firm, moderately sticky, moderately plastic; 0.5 medium roots and 3.0 fine roots; 3.0 very fine and fine vesicular pores; 3 percent distinct clay films; 6 percent by volume 2-50-75 millimeter unspecified fragments observed by weighed method; abrupt wavy boundary. Lab sample # 00P00554; observed in pit, small. c part is approaching Cr; rupture resistance: (Bt): Fi, S, P; concentrations: M, 5, 1,2, 7.5YR 3/2, vw.
    2R—141 centimeters (55.5 inches); loamy coarse sand; fragments. Lab sample # 00P00555; observed in pit, small. very dark diorite.