| *** Taxonomy Characterization Data *** |
| Pedon ID: S1972CA013002 | ( Contra Costa, California ) | Print Date: Nov 21 2024 11:19AM |
| Sampled as on Apr 8, 1972: | Los Osos |
| Revised to correlated: | unnamed ; Fine, montmorillonitic, thermic Typic Argixerolls |
| United States Department of Agriculture | ||||
| SSL | - | Project | NL71CA001 CONTRA COSTA ARE | Natural Resources Conservation Service |
| - | Site ID | S1972CA013002 | National Soil Survey Center | |
| - | Pedon No. | 72C0004 | Soil Survey Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska 68508-3866 | ||
| 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 | 8D1 | 4A1d | |||||||||||
| 72C00023 | 0-15 | A1 | S | 0.36 | 1.36 | 0.058 | -- | ||||||
| 72C00023 | 0-15 | A1 | GP | 37.4 | |||||||||
| 72C00024 | 15-33 | A2 | S | 0.34 | 1.44 | 0.065 | -- | ||||||
| 72C00024 | 15-33 | A2 | GP | 40.1 | |||||||||
| 72C00025 | 33-66 | B1 | S | 0.34 | 1.49 | 0.073 | -- | ||||||
| 72C00025 | 33-66 | B1 | GP | 40.7 | |||||||||
| 72C00026 | 66-97 | B2 | S | 0.38 | 1.50 | 0.076 | -- | ||||||
| 72C00026 | 66-97 | B2 | GP | 38.1 | |||||||||
| 72C00027 | 97-142 | C1 | S | 0.62 | 1.55 | 0.057 | -- | ||||||
| 72C00027 | 97-142 | C1 | GP | 16.9 | |||||||||
| 72C00028 | 142-188 | C2 | S | 0.59 | 1.59 | 0.052 | -- | ||||||
| 72C00028 | 142-188 | C2 | GP | 23.4 | |||||||||
| 72C00029 | 188-249 | C3 | S | 0.76 | 1.88 | 0.036 | -- | ||||||
| 72C00029 | 188-249 | C3 | GP | 16.4 | |||||||||
| 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 | % | |||||||||||
| 4C1a2a | 6A1c | 8D1 | 5D2 | ||||||||||||||||
| 72C00023 | 0-15 | A1 | S | 0.89 | |||||||||||||||
| 72C00023 | 0-15 | A1 | GP | 5.7 | 1.25 | 2 | |||||||||||||
| 72C00024 | 15-33 | A2 | S | 0.91 | |||||||||||||||
| 72C00024 | 15-33 | A2 | GP | 5.8 | 0.85 | 2 | |||||||||||||
| 72C00025 | 33-66 | B1 | S | 0.91 | |||||||||||||||
| 72C00025 | 33-66 | B1 | GP | 5.9 | 0.56 | 2 | |||||||||||||
| 72C00026 | 66-97 | B2 | S | 1.01 | |||||||||||||||
| 72C00026 | 66-97 | B2 | GP | 6.3 | 0.34 | 2 | |||||||||||||
| 72C00027 | 97-142 | C1 | S | 1.73 | |||||||||||||||
| 72C00027 | 97-142 | C1 | GP | 6.4 | 0.08 | 2 | |||||||||||||
| 72C00028 | 142-188 | C2 | S | 1.54 | |||||||||||||||
| 72C00028 | 142-188 | C2 | GP | 6.7 | 0.10 | 3 | |||||||||||||
| 72C00029 | 188-249 | C3 | S | 1.93 | |||||||||||||||
| 72C00029 | 188-249 | C3 | GP | 7.2 | 0.10 | 4 | |||||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.95 | (NA) | |
| Clay, carbonate free, Weighted Average | 40 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 40 | % wt | |
| LE, Whole Soil, Summed to 1m | 7 | cm/m | |
| Weighted averages based on control section: 33-83 cm | |||