IDENTIFIERS
Current Taxon Name (Soil Name):
Arvada
OSD
Series Extent
User Site ID:
S1991CO123004
User Pedon ID:
91CO123004
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
SSL
Lab Pedon # -
91P0868
NCSS Pedon Lab Data NASIS Record ID -
63906
Print Date:
11/21/2024
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:
40.8288879
Std. Longitude:
-104.7450027
Datum:
WGS84
Township:
10N
Range:
66W
Section:
13
PLSS Details:
500 feet N and 400 feet E of SW corner
State:
Colorado
County:
CO123—Weld
MLRA:
67—Central High Plains
PEDON
Describers Name:
Al Price, Tom Reinsch
Pedon Purpose:
full pedon description
Pedon Record Orgin:
Converted from SSL-CMS data
Pedon #:
4
Sampled As Information:
Soil Name -
Arvada
Taxonomic Class -
Fine, montmorillonitic Ustollic Natrargids
PSC -
23 to 74 cm.
Classificaton Date -
7/1/1991
Moisture Class -
ustic
Dynamic Soil Properties:
Erosion Class -
1
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Landform:
playa or alluvial flat
Slope Position:
depression on a slope
Slope Shape Down:
concave
Runoff:
very low
Drainage Class:
well
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
7/1/1991 (actual site observation date)
Microrelief Kind:
microdepression
Microrelief Elevation:
10
Surface Cover Properties:
Site Obs. Cover Kind 1 -
grass/herbaceous cover
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
Site Erosion Accelerated:
water erosion
Pedon Diagnostic Features
Feature Kind
Feature Depth L-H
Feature Thickness L-RV-H
cm
albic horizon
natric horizon
argillic horizon
0—8
23—81
23—137
—-
—-
—-
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
—
—
1631
—
90
30
—
—
6
22
1
6
22
1
—
—
—
—
—
E—0 to 3 centimeters (0.0 to 1.2 inches); light gray (10YR 7/2), dark yellowish brown (10YR 4/4), moist; sandy clay loam; moderate fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 2.5 fine roots throughout; 2.5 very fine and fine tubular pores; fragments; strongly alkaline, pH 8.5, hellige-truog; abrupt smooth boundary. Lab sample # 91P05255. common fine roots throughout
Ey—3 to 8 centimeters (1.2 to 3.1 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; clay loam; moderate coarse subangular blocky structure; hard, very firm, moderately sticky, moderately plastic; 5.5 very fine and fine roots between peds; 2.5 very fine and fine tubular pores; 11 percent fine and medium threadlike salt masses; fragments; strongly alkaline, pH 8.8, hellige-truog; abrupt smooth boundary. Lab sample # 91P05256. common fine and medium salt masses concentrations; many very fine and fine roots between peds
Btny1—8 to 23 centimeters (3.1 to 9.1 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; clay; weak coarse columnar, and moderate medium subangular blocky structure; hard, firm, moderately sticky, very plastic; 5.5 very fine and fine roots between peds and 5.5 medium roots between peds; 2.5 very fine and fine interstitial and tubular pores; 15 percent faint clay films on faces of peds; 11 percent fine and medium irregular salt masses; fragments; slight effervescence; strongly alkaline, pH 8.6, hellige-truog; clear smooth boundary. Lab sample # 91P05257. common fine and medium salt masses concentrations; few clay films surface features on faces of peds; many very fine and fine roots between peds; many medium roots between peds; effervescence is discontinuous; patchy - phpvsfiid 234246; patchy - phpvsfiid 234246
Btny2—23 to 51 centimeters (9.1 to 20.1 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; clay; weak medium and coarse subangular blocky structure; very hard, firm, very sticky, very plastic; 5.5 very fine and fine roots between peds and 5.5 fine roots between peds; 2.5 very fine and fine interstitial and tubular pores; 2 percent faint clay films on faces of peds and 15 percent faint clay films in root channels and/or pores; 11 percent fine and medium threadlike salt masses and 11 percent medium threadlike gypsum masses; fragments; strong effervescence; strongly alkaline, pH 8.6, hellige-truog; clear wavy boundary. Lab sample # 91P05258. common fine and medium salt masses concentrations; common medium masses of gypsum concentrations; very few clay films surface features on faces of peds; few clay films surface features in root channels and/or pores; many very fine and fine roots between peds; many fine roots between peds; discontinuous - phpvsfiid 234247; patchy - phpvsfiid 234248; discontinuous - phpvsfiid 234247; patchy - phpvsfiid 234248
Btny3—51 to 66 centimeters (20.1 to 26.0 inches); pale brown (10YR 6/3), yellowish brown (10YR 5/4), moist; clay; weak coarse subangular blocky structure; hard, firm, very sticky, very plastic; 2.5 fine roots throughout; 2.5 very fine and fine interstitial and tubular pores; 2 percent faint clay films on faces of peds and 15 percent faint clay films in root channels and/or pores; 11 percent fine and medium threadlike gypsum masses and 11 percent fine and medium spherical salt masses; fragments; strong effervescence; strongly alkaline, pH 8.8, hellige-truog; clear smooth boundary. Lab sample # 91P05259. common fine and medium masses of gypsum concentrations; common fine and medium salt masses concentrations; few clay films surface features in root channels and/or pores; very few clay films surface features on faces of peds; common fine roots throughout; discontinuous - phpvsfiid 234249; patchy - phpvsfiid 234250; discontinuous - phpvsfiid 234249; patchy - phpvsfiid 234250
Btny4—66 to 81 centimeters (26.0 to 31.9 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; clay; weak coarse subangular blocky structure; very hard, firm, very sticky, very plastic; 2.5 fine roots throughout; 2.5 fine interstitial and tubular pores; 2 percent faint clay films in root channels and/or pores and 15 percent faint clay films on faces of peds; 11 percent fine threadlike gypsum masses and 11 percent fine and medium threadlike salt masses; fragments; strong effervescence; strongly alkaline, pH 8.8, hellige-truog; clear smooth boundary. Lab sample # 91P05260. common fine and medium salt masses concentrations; common fine masses of gypsum concentrations; very few clay films surface features in root channels and/or pores; few clay films surface features on faces of peds; common fine roots throughout; patchy - phpvsfiid 234251; patchy - phpvsfiid 234252; patchy - phpvsfiid 234251; patchy - phpvsfiid 234252
Btkny—81 to 137 centimeters (31.9 to 53.9 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; clay loam; weak coarse subangular blocky structure; very hard, firm, very sticky, very plastic; 0.5 very fine and fine roots between peds; 5.5 very fine and fine interstitial and tubular pores; 2 percent faint clay films in root channels and/or pores; 11 percent fine and medium irregular gypsum threads and 11 percent fine and medium irregular salt masses; fragments; strong effervescence; strongly alkaline, pH 8.8, hellige-truog; clear smooth boundary. Lab sample # 91P05261. and 91P5262; common fine and medium salt masses concentrations; common fine and medium gypsum threads concentrations; very few clay films surface features in root channels and/or pores; few very fine and fine roots between peds; patchy - phpvsfiid 234253; patchy - phpvsfiid 234253
Bkny—137 to 160 centimeters (53.9 to 63.0 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; clay loam; massive; very hard, very firm, very sticky, very plastic; 2.5 fine roots throughout; 2.5 fine interstitial and tubular pores; 11 percent fine irregular salt masses and 1 percent fine irregular gypsum threads; fragments; strong effervescence; strongly alkaline, pH 8.8, hellige-truog; clear smooth boundary. Lab sample # 91P05263. this horizon contains 25% discontinuous lenses of loamy material .5-1cm thick; common fine salt masses concentrations; few fine gypsum threads concentrations; common fine roots throughout
Bnyg—160 to 188 centimeters (63.0 to 74.0 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; sandy clay loam; 11 percent olive yellow (5Y 6/6) fine prominent mottles; massive; hard, friable, moderately sticky, moderately plastic; 2.5 fine roots throughout; 2.5 fine interstitial and tubular pores; 11 percent fine irregular gypsum threads and 11 percent fine and medium irregular salt masses; fragments; strong effervescence; strongly alkaline, pH 8.8, hellige-truog; abrupt wavy boundary. Lab sample # 91P05264. common fine gypsum threads concentrations; common fine and medium salt masses concentrations; common fine roots throughout; common fine prominent 5Y66 mottles
Ayb—188 to 216 centimeters (74.0 to 85.0 inches); grayish brown (10YR 5/2), dark grayish brown (10YR 4/2), moist; clay; massive; very hard, very firm, very sticky, very plastic; 0.5 fine roots throughout; 0.5 fine interstitial and tubular pores; 11 percent fine irregular salt masses and 11 percent fine and medium irregular gypsum threads; fragments; slight effervescence; strongly alkaline, pH 8.6, hellige-truog. Lab sample # 91P05265. common fine and medium gypsum threads concentrations; common fine salt masses concentrations; few fine roots throughout