IDENTIFIERS

  • Current Taxon Name (Soil Name): Wright
  • OSD
  • Series Extent
  • User Site ID: S1961CA097002
  • User Pedon ID: S1961CA097002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2839
  • NCSS Pedon Lab Data NASIS Record ID - 37418
  • Print Date: 4/27/2025

    • 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: 38.4083328
  • Std. Longitude: -122.7941666
  • Datum: WGS84
  • Township: 7N
  • Range: 8W
  • Section: 31
  • PLSS Details: 100 feet west and 1200 feet south of junction of Sebastopol and Llano Roads. Northwest corner of NW1/4, SW1/4
  • Location Description: Gold Ridge SCD, Laguna Addition.
  • State: California
  • County: CA097—Sonoma
  • MLRA: 22—Sierra Nevada Range
  • Non-MLRA Soil Survey Area: CA097—Sonoma County, California
  • 7.5 Minute USGS Quad: 38122-D7—Sebastopol, California

    • PEDON

  • Describers Name: Reuben Nelson, Leo C. Klameth, V. C. Miller, G. Lambert, J. H. Kashiwagi, F. Grahm.
  • Current Taxonomic Class: Fine, smectitic, mesic Aquic Haplustalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Wright
  • PSC - 63 to 100 cm.
  • Classificaton Date - 7/23/2007
  • Moisture Class - ustic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Wright
  • Classificaton Date - 6/20/1961
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/20/1961 (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
    • 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

    —

    —

    25

    —

    737

    —

    —

    14.4

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 18 centimeters (0.0 to 7.1 inches); light brownish gray (10YR 6/2), very dark grayish brown (10YR 3/2), moist; very fine sandy loam; massive; hard when dry, friable, nonsticky, nonplastic; 21.0 very fine and fine roots; 21.0 fine and medium interstitial and tubular pores; fragments; moderately acid, pH 5.7, unspecified; gradual smooth boundary. Lab sample # 40A22411
    A21—18 to 38 centimeters (7.1 to 15.0 inches); light brownish gray (10YR 6/2), very dark grayish brown (10YR 3/2), moist; loam; massive; hard when dry, friable, slightly sticky, slightly plastic; 21.0 very fine and fine roots; 21.0 fine and medium interstitial and tubular pores; fragments; moderately acid, pH 6.0, unspecified; gradual smooth boundary. Lab sample # 40A22412
    A22g—38 to 64 centimeters (15.0 to 25.2 inches); light brownish gray (10YR 6/2), light gray (10YR 7/2), moist; sandy clay loam; 1 percent yellowish brown (10YR 5/6) fine faint and 1 percent dark grayish brown (10YR 4/2) fine faint mottles; massive; hard when dry, friable, moderately sticky, slightly plastic; 21.0 very fine and fine roots; 21.0 fine and medium interstitial and tubular pores; fragments; strongly acid, pH 5.5, unspecified; abrupt smooth boundary. Lab sample # 40A22413
    B21tg—64 to 81 centimeters (25.2 to 31.9 inches); light brownish gray (10YR 6/2) and light gray (10YR 7/2), dark grayish brown (10YR 4/2), moist; clay; 3 percent very dark brown (10YR 2/2) medium distinct mottles; weak coarse prismatic structure; hard when dry, very firm, moderately sticky, very plastic; 21.0 very fine and fine roots; 3.0 very fine and fine tubular pores; clay films on faces of peds and 30 percent distinct dark grayish brown (10YR 4/2), dry, manganese or iron-manganese stains on faces of peds; fragments; very strongly acid, pH 5.0, unspecified; gradual smooth boundary. Lab sample # 40A22414. continuous - phpvsfiid 187299; continuous - phpvsfiid 187299
    B22tg—81 to 107 centimeters (31.9 to 42.1 inches); light brownish gray (10YR 6/2) and light gray (10YR 7/2), dark grayish brown (10YR 4/2), moist; clay; dark yellowish brown (10YR 4/4) faint and 3 percent light yellowish brown (10YR 6/4) medium distinct mottles; weak coarse prismatic structure; very hard, very firm, moderately sticky, very plastic; 3.0 very fine and fine roots; 3.0 very fine and fine tubular pores; clay films on faces of peds and in pores; fragments; strongly acid, pH 5.5, unspecified; gradual smooth boundary. Lab sample # 40A22415. continuous - phpvsfiid 187300; continuous - phpvsfiid 187300
    B23tg—107 to 119 centimeters (42.1 to 46.9 inches); light brownish gray (10YR 6/2), brown (10YR 4/3), moist; clay; weak coarse and very coarse prismatic structure; very hard, very firm, moderately sticky, very plastic; 0.5 very fine and fine roots; 3.0 very fine and fine tubular pores; clay films on faces of peds and clay bridges on faces of peds; fragments; slightly acid, pH 6.5, unspecified; gradual smooth boundary. Lab sample # 40A22416. continuous - phpvsfiid 187301; continuous - phpvsfiid 187302; continuous - phpvsfiid 187301; continuous - phpvsfiid 187302
    B24tg—119 to 157 centimeters (46.9 to 61.8 inches); pale brown (10YR 6/3), dark grayish brown (10YR 4/2), moist; clay; dark brown (10YR 3/3) faint and 3 percent brown (10YR 5/3) medium distinct mottles; weak coarse prismatic structure; hard when dry, firm, moderately sticky, very plastic; 0.5 very fine and fine roots; 3.0 fine tubular pores; clay films on faces of peds and in pores and 75 percent manganese or iron-manganese stains; fragments; neutral, pH 7.0, unspecified; gradual smooth boundary. Lab sample # 40A22417. continuous - phpvsfiid 196792; continuous - phpvsfiid 196792
    B31g—157 to 185 centimeters (61.8 to 72.8 inches); light brownish gray (10YR 6/2), olive brown (2.5Y 4/4), moist; sandy clay loam; 3 percent brown (10YR 5/3) medium distinct and 3 percent strong brown (7.5YR 5/6) medium distinct mottles; weak coarse prismatic structure; hard when dry, firm, moderately sticky, very plastic; 0.5 fine roots; 3.0 tubular pores; clay films on faces of peds and in pores; fragments; slightly acid, pH 6.5, unspecified; clear wavy boundary. Lab sample # 40A22418. continuous - phpvsfiid 196790; continuous - phpvsfiid 196790
    B32g—185 to 226 centimeters (72.8 to 89.0 inches); pale brown (10YR 6/3) and light brownish gray (10YR 6/2), olive brown (2.5Y 4/4), moist; clay; 1 percent very dark grayish brown (10YR 3/2) fine distinct and 1 percent very dark grayish brown (2.5Y 3/2) fine distinct mottles; weak coarse prismatic structure; extremely hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots; 3.0 very fine and fine tubular pores; clay films on faces of peds and 75 percent manganese or iron-manganese stains; fragments; slightly acid, pH 6.5, unspecified; clear smooth boundary. Lab sample # 40A22419. continuous - phpvsfiid 196791; continuous - phpvsfiid 196791
    B33g—226 to 249 centimeters (89.0 to 98.0 inches); pale brown (10YR 6/3), olive brown (2.5Y 4/4), moist; clay; 3 percent brown (10YR 5/3) fine distinct mottles; weak coarse prismatic structure; extremely hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots; 3.0 very fine and fine tubular pores; clay films on faces of peds; fragments; slightly acid, pH 6.5, unspecified; clear wavy boundary. Lab sample # 40A22420. continuous - phpvsfiid 196786; continuous - phpvsfiid 196786
    C1g—249 to 282 centimeters (98.0 to 111.0 inches); brown (10YR 5/3), olive brown (2.5Y 4/4), moist; sandy clay; 3 percent grayish brown (2.5Y 5/2) fine distinct mottles; massive; hard when dry, friable; 0.1 fine and medium roots; 0.5 fine interstitial pores; clay bridges on sand and gravel; fragments; neutral, pH 7.0, unspecified. Lab sample # 40A22421. continuous - phpvsfiid 196787; continuous - phpvsfiid 196787