| *** Taxonomy Characterization Data *** |
| Pedon ID: S1975CO103008 | ( Rio Blanco, Colorado ) | Print Date: Feb 18 2026 11:23AM |
| Sampled as on Jun 16, 1975: | UNNAMED ; Fine, mixed Typic Natrustalfs |
| Revised to correlated on May 1, 1998: | (unnamed) ; Fine, mixed, superactive, frigid Typic Natrustalf |
| United States Department of Agriculture | ||||
| SSL | - | Project | NL40001 SSIR SAMPLES | Soil Conservation Service |
| - | Site ID | S1975CO103008 Lat: 39° 56' 48.89" north Long: 108° 19' 51.44" west | Riverside Soil Survey Laboratory | |
| - | Pedon No. | 40A3278 | Soil Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Riverside, California | ||
| Taxonomy Tier 1 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | |||
| Fine | CaCO3 | 1500 | .1-75 | Bulk | Cole | Vol | Resist | ||||||
| Clay | Clay | Clay | kPa | Clay | mm | Den | Whole | % of | Min | ||||
| Depth | <.002 | <.0002 | <.002 | /Clay | Est | Frac | 33 kPa | Soil | Whole | % | |||
| Layer | (cm) | Horz | Prep | (---------% of <2 mm-------) | (-------- % --------) | g cm-3 | cm cm-1 | ||||||
| 3A1a1a | NK | ||||||||||||
| 40A25567 | 0-10 | A | S | 22.1 | 0.52 | 24 | 1.32 | 0.020 | -- | ||||
| 40A25568 | 10-26 | B1 | S | 30.2 | 0.59 | 10 | 1.27 | 0.043 | -- | ||||
| 40A25569 | 26-39 | Bk1 | S | 27.3 | 0.62 | 8 | -- | ||||||
| 40A25570 | 39-92 | Bk2 | S | 24.3 | 0.71 | 14 | 1.33 | 0.024 | -- | ||||
| 40A25571 | 92-143 | B2 | S | 23.9 | 0.69 | 14 | -- | ||||||
| 40A25572 | 143-200 | 2Bk | S | 25.5 | 0.61 | 12 | -- | ||||||
| Taxonomy Tier 2 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | |||
| pH | pH | Org | Tot | Al+½ Fe | CO3 as | (--- Base Sat ---) | NZ | ECEC | CEC7 | ECEC | Al | ||||||||
| Depth | H2O | NaF | C | C | Oxal | ODOE | CaCO3 | NH4 | Bases | P Ret | cmol(+) | /Clay | /Clay | Sat | E C | ESP | |||
| Layer | (cm) | Horz | Prep | (------------------------------------------ % --------------------------------------------) | kg -1 | % | dS m-1 | % | |||||||||||
| NK | NK | NK | 5D2 | ||||||||||||||||
| 40A25567 | 0-10 | A | S | 0.80 | 1 | 100* | 100 | 0.78 | 0.70 | 1 | |||||||||
| 40A25568 | 10-26 | B1 | S | 0.60 | 2 | 100* | 100 | 0.82 | 0.50 | 1 | |||||||||
| 40A25569 | 26-39 | Bk1 | S | 0.60 | 5 | 100 | 0.82 | 0.60 | 2 | ||||||||||
| 40A25570 | 39-92 | Bk2 | S | 0.30 | 19 | 100 | 0.70 | 0.80 | 12 | ||||||||||
| 40A25571 | 92-143 | B2 | S | 0.20 | 7 | 100 | 0.77 | 10.20 | 6 | ||||||||||
| 40A25572 | 143-200 | 2Bk | S | 0.20 | 7 | 100 | 0.77 | 12.70 | 6 | ||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.82 | (NA) | |
| Clay, carbonate free, Weighted Average | 29 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 9 | % wt | |
| Clay, total, Weighted Average | 29 | % wt | |
| Weighted averages based on control section: 10-39 cm | |||