IDENTIFIERS

  • Current Taxon Name (Soil Name): McKay
  • OSD
  • Series Extent
  • User Site ID: S1949OR059002
  • User Pedon ID: S1949OR059002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A0950
  • NCSS Pedon Lab Data NASIS Record ID - 34009
  • Print Date: 11/13/2025

    • 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: 45.7963905
  • Std. Longitude: -118.4391632
  • Datum: WGS84
  • Township: 4N
  • Range: 35E
  • Section: 28
  • PLSS Details: about 495 feet south and 860 feet west of the northeastern corner of SE 1/4
  • Location Description: about 1.5 miles southwest of Weston, Umatilla County, Oregon
  • State: Oregon
  • County: OR059—Umatilla
  • Non-MLRA Soil Survey Area: OR667—Umatilla County Area, Oregon

    • PEDON

  • Current Taxonomic Class: Coarse-loamy, mixed, mesic Typic Calcixerolls
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - McKay
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/23/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - MCKAY
  • Classificaton Date - 6/1/1949
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1949 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop 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

    3

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    A1—0 to 20 centimeters (0.0 to 7.9 inches); dark grayish brown (10YR 4/2), very dark gray (10YR 3/1), moist; silt loam; strong fine granular, and moderate fine granular structure; friable, moderately sticky, slightly plastic; fragments; noneffervescent; slightly acid, pH 6.2, bromthymol blue. Lab sample # 40A07146. very scattered coarse or very coarse sand grains; slightly very fine micaceous; many pore spaces; moderate to slight fizz and very slight digestion with H2O2
    A2—20 to 28 centimeters (7.9 to 11.0 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; silt loam; massive; friable, moderately sticky, slightly plastic; 21.0 fine roots; 0.5 pores; yellowish red (5YR 4/6) and strong brown (7.5YR 5/6) and 1 percent fine brown (10YR 5/3); fragments; noneffervescent, by hcl, unspecified; slightly acid, pH 6.5, bromthymol blue. Lab sample # 40A07147. very few pores other than a moderate number of fine root channels slightly lined or filled with slightly darker very fine crumb material; moderately very fine micaceous
    B21—28 to 36 centimeters (11.0 to 14.2 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; silty clay loam; very sticky, moderately plastic; 21.0 fine roots; 0.5 pores; 30 percent very dark gray (10YR 3/1) coats on horizontal faces of peds; yellowish brown (10YR 5/4) and 1 percent fine dark brown (10YR 3/3); fragments; noneffervescent, by hcl, unspecified; neutral, pH 6.8, bromthymol blue. Lab sample # 40A07148. has a loam that can not be crushed in fingers but can be broken apart in the hands; moderately columnar with moderately rounded tops capped with about 1 mm of siliceous coating; root channels have very dark gray coating; has coatings of very dark gray to very dark brown or black; breaks into angular medium blocky aggregates 15 to 20 mm. across that are moderately to strongly defined; tope 1/3 inch has a decreasing amount of light grayish brown siliceous grains arranged band-like
    B22—36 to 46 centimeters (14.2 to 18.1 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; silty clay loam; strong medium angular blocky structure; very hard, firm, very sticky, moderately plastic; 21.0 very fine roots; 1 percent coats on vertical faces of peds; 1 percent fine yellowish red (5YR 4/6); fragments; noneffervescent, by hcl, unspecified; moderately alkaline, pH 8.0, cresol red. Lab sample # 40A07149. browner, less grayish, and less dark-gray coating than above; can hardly be crushed in fingers; root channels lined with very dark grayish brown or very dark brown
    B23CA—46 to 56 centimeters (18.1 to 22.0 inches); brown (10YR 5/3) and dark brown (10YR 3/3), very dark grayish brown (10YR 3/2), moist; silty clay loam; very hard, firm, moderately sticky, moderately plastic; 3.0 very fine and fine roots; fragments; very slight effervescence, by hcl, unspecified; moderately alkaline, pH 8.3, cresol red. Lab sample # 40A07150. very slightly gritty with pellets of hard soil material; very few very coarse sand or very fine gravel basaltic particles and very few (or no) very small concretions; root channels coated with dark-gray or dark brown material; some small splotches of lime on aggregates and around some of the root channels
    B3CA—56 to 79 centimeters (22.0 to 31.1 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; silty clay loam; moderate very fine and fine angular blocky structure; moderately sticky, slightly plastic; fragments; slight effervescence, by hcl, unspecified; moderately alkaline, pH 8.3, cresol red. Lab sample # 40A07151. has a moderate quantity of light gray (10YR 7/2) lime in veins and root channels and on aggregates; occasional very coarse sand or very fine gravel
    C1CA—79 to 112 centimeters (31.1 to 44.1 inches); pale brown (10YR 6/3) and very pale brown (10YR 7/3), brown (10YR 5/3), moist; silt loam; weak fine angular blocky structure; hard when dry, moderately sticky, slightly plastic; 21.0 roots; fragments; strong effervescence, by hcl, unspecified; moderately alkaline, pH 8.0, cresol red. Lab sample # 40A07152. contains very few coarse and very coarse sand and very fine gravel particles, probably basalt; few lime veins especially in root channels; some roots are as large as 2 mm across
    2C2CA—112 to 130 centimeters (44.1 to 51.2 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; silt loam; weak fine angular blocky structure; hard when dry, moderately sticky, slightly plastic; 21.0 roots; fragments; violent effervescence, by hcl, unspecified; moderately alkaline, pH 8.3, cresol red. Lab sample # 40A07153. slightly gritty with few coarse sand and very coarse sand basaltic grains; numerous white and light gray lime splotches and veins; root channels as large as 2 mm in diameter lined with lime; a layer of lime 1 to 2 mm. thick that is slightly hard; this may be a buried soil layer and it contains a mixture of basaltic material
    2C3CA—130 to 142 centimeters (51.2 to 55.9 inches); pale brown (10YR 6/3), yellowish brown (10YR 5/4), moist; loam; slightly hard, slightly sticky, slightly plastic; fragments; strong effervescence, by hcl, unspecified; moderately alkaline, pH 8.3, cresol red. Lab sample # 40A07154. slightly gritty with basaltic coarse sand and very coarse sand; few to moderate lime veins; this is probably loessal that is slightly influenced by basalt
    2C4—142 to 190 centimeters (55.9 to 74.8 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; silt loam; hard when dry, moderately sticky, slightly plastic; 1.0 roots; fine pores; fragments; noneffervescent, by hcl, unspecified; moderately alkaline, pH 8.0, cresol red. Lab sample # 40A07155. very slightly gritty with coarse sand basaltic material and very hard (coarse sand-sized) nodules of soil material that wets slowly; few channels coated with lime; this is probably loessal with an admixture of basaltic material