IDENTIFIERS

  • Current Taxon Name (Soil Name): Fairfax
  • OSD
  • Series Extent
  • User Site ID: S2013MD027002
  • User Pedon ID: S2013MD027002
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 13N9290
  • NCSS Pedon Lab Data NASIS Record ID - 51965
  • Print Date: 11/24/2024

    • 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: 39.2271667
  • Std. Longitude: -76.7481111
  • Datum: WGS84
  • Location Description: In a forested area about 1.7 miles west of I-95, 0.95 miles south of the Patapsco River, 1.2 miles north of Montgomery road, and 1125 feet north west of the end of Belmont Woods road, west of the Belmont Conference Center in Patapsco Valley State Park, in Howard County, Maryland.
  • Map Unit: LaC—Legore silt loam, 8 to 15 percent slopes
  • Country: US—United States
  • 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
  • 7.5 Minute USGS Quad: 39076-B6—Relay, Maryland

    • PEDON

  • Describers Name: PSK, JEB, CER
  • Current Taxonomic Class: Fine-loamy, mixed, active, mesic Typic Hapludults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Fairfax
  • PSC - 39 to 89 cm.
  • Classificaton Date - 8/8/2014
  • Classifier - David Verdone
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Fairfax
  • Taxonomic Class - Fine-loamy, mixed, semiactive, mesic Typic Hapludults
  • Taxon Kind - taxadjunct
  • PSC - 39 to 89 cm.
  • Classificaton Date - 3/7/2013
  • Classifier - David Verdone
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: level 1


    • SITE

  • Parent Material: sandy and loamy marine deposits over residuum weathered from gneiss
  • Landscape: piedmont
  • Landform: upland hillslope
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: lower third
  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: low
  • Ksat Class Upper: moderately high
  • Ksat Class Lower: moderately low
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: strongly coherent gneiss at 188cm
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/5/2013 (actual site observation date)
  • Data Collector: PSK, JEB, CER
  • 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 - 11
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    lithologic discontinuity

    0—39

    39—120

    120—188

    —39—

    —81—

    —68—
    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

    7

    —

    —

    98

    —

    214

    1119

    —

    177

    13

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 7 centimeters (0.0 to 2.8 inches); very dark grayish brown (10YR 3/2) sandy loam; weak fine subangular blocky, and weak medium subangular blocky structure; very friable, nonsticky, nonplastic; common (3.0) medium roots throughout and common (3.0) fine roots throughout; common (3.0) very fine interstitial and common (3.0) fine interstitial pores; 2 percent by volume nonflat well rounded very strongly coherent cemented 2-13-75 millimeter quartzite fragments observed by visual inspection method; abrupt wavy boundary.; moist when described; observed in pit, small
    Ap—7 to 25 centimeters (2.8 to 9.8 inches); dark yellowish brown (10YR 3/4) and dark brown (7.5YR 3/4) sandy loam; weak medium subangular blocky structure; very friable, nonsticky, nonplastic; common (3.0) medium roots throughout and common (3.0) fine roots throughout; common (3.0) very fine interstitial and common (3.0) fine tubular and common (3.0) fine interstitial pores; 2 percent by volume nonflat well rounded very strongly coherent cemented 2-13-75 millimeter quartzite fragments observed by visual inspection method; abrupt wavy boundary.; moist when described; observed in pit, small
    BA—25 to 39 centimeters (9.8 to 15.4 inches); brown (7.5YR 4/3) loam; weak medium subangular blocky, and weak coarse subangular blocky structure; friable, nonsticky, nonplastic; common (3.0) very fine roots throughout and common (3.0) fine roots throughout and many (7.0) coarse roots throughout; common (3.0) fine interstitial and common (3.0) fine tubular pores; 5 percent by volume nonflat well rounded very strongly coherent cemented 2-13-75 millimeter quartzite fragments observed by visual inspection method; clear smooth boundary.; moist when described; observed in pit, small
    Bt1—39 to 55 centimeters (15.4 to 21.7 inches); red (7.5R 4/6) loam; moderate medium subangular blocky structure; friable, slightly sticky, slightly plastic; common (3.0) medium roots throughout and common (3.0) fine roots throughout; common (3.0) fine interstitial and common (3.0) fine tubular pores; 15 percent faint clay films on all faces of peds and 15 percent faint clay films on surfaces along pores; 5 percent by volume nonflat well rounded very strongly coherent cemented 2-13-75 millimeter quartzite fragments observed by visual inspection method; clear wavy boundary.; moist when described; observed in pit, small. continuous - phpvsfiid 1047154; continuous - phpvsfiid 1047155; continuous - phpvsfiid 1047154; continuous - phpvsfiid 1047155
    Bt2—55 to 70 centimeters (21.7 to 27.6 inches); strong brown (7.5YR 5/6) clay loam; 32 percent clay; moderate medium subangular blocky, and moderate fine subangular blocky structure; firm, moderately sticky, moderately plastic; few (0.9) very fine roots throughout and few (0.9) fine roots throughout; common (3.0) fine interstitial and common (3.0) fine tubular pores; 15 percent distinct clay films on all faces of peds and 15 percent distinct clay films on surfaces along pores; 10 percent by volume nonflat well rounded very strongly coherent cemented 2-13-75 millimeter quartzite fragments observed by visual inspection method; clear wavy boundary.; moist when described; observed in pit, small. continuous - phpvsfiid 1047156; continuous - phpvsfiid 1047157; continuous - phpvsfiid 1047156; continuous - phpvsfiid 1047157
    Bt3—70 to 94 centimeters (27.6 to 37.0 inches); 90 percent strong brown (7.5YR 5/6) and 10 percent yellowish brown (10YR 5/8) clay; strong medium subangular blocky structure; firm, moderately sticky, moderately plastic; few (0.9) medium roots throughout and few (0.9) fine roots throughout and few (0.9) coarse roots throughout; common (3.0) fine interstitial and common (3.0) fine tubular pores; 15 percent prominent clay films on all faces of peds and 15 percent prominent clay films on surfaces along pores; 5 percent by volume nonflat well rounded very strongly coherent cemented 2-13-75 millimeter quartzite fragments observed by visual inspection method; clear wavy boundary.; moist when described; observed in pit, small. continuous - phpvsfiid 1047158; continuous - phpvsfiid 1047159; continuous - phpvsfiid 1047158; continuous - phpvsfiid 1047159
    Bt4—94 to 120 centimeters (37.0 to 47.2 inches); 40 percent strong brown (7.5YR 5/6) and 30 percent strong brown (7.5YR 4/6) and 30 percent reddish yellow (7.5YR 6/8) clay loam; 30 percent clay; moderate medium prismatic parts to strong medium angular blocky structure; firm, moderately sticky, moderately plastic; common (3.0) very fine roots throughout and common (3.0) fine roots throughout and few (0.9) coarse roots throughout; common (3.0) fine interstitial and common (3.0) fine tubular pores; 15 percent prominent clay films on all faces of peds and 15 percent prominent clay films on surfaces along pores; 2 percent by volume nonflat well rounded very strongly coherent cemented 2-13-75 millimeter quartzite fragments observed by visual inspection method; clear smooth boundary.; moist when described; observed in pit, small. continuous - phpvsfiid 1047160; continuous - phpvsfiid 1047161; continuous - phpvsfiid 1047160; continuous - phpvsfiid 1047161
    2BC—120 to 155 centimeters (47.2 to 61.0 inches); yellowish red (5YR 4/6) fine sandy loam; weak medium platy structure; friable, nonsticky, nonplastic; few (0.9) very fine roots throughout and few (0.9) fine roots throughout; many (7.0) very fine tubular and many (7.0) fine tubular pores; fragments.; moist when described; observed in pit, small
    2CB—155 to 188 centimeters (61.0 to 74.0 inches); yellowish red (5YR 4/6) and strong brown (7.5YR 5/8) fine sandy loam; nonsticky, nonplastic; few (0.9) very fine irregular and few (0.0) fine irregular pores; 2 percent by volume nonflat subangular very strongly coherent cemented 2-13-75 millimeter quartzite fragments observed by visual inspection method.; moist when described; observed in auger, bucket