| *** Taxonomy Characterization Data *** |
| Pedon ID: S1972CA013003 | ( Contra Costa, California ) | Print Date: Apr 28 2024 12:12PM |
| Sampled as on Apr 10, 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 | S1972CA013003 | National Soil Survey Center | |
| - | Pedon No. | 72C0005 | 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 | 3A1a1a | 8D1 | 4A1d | ||||||||||
| 72C00030 | 0-8 | A1 | S | 0.49 | 1.19 | 0.063 | -- | ||||||
| 72C00030 | 0-8 | A1 | GP | 32.6 | 13.6 | ||||||||
| 72C00031 | 8-23 | A2 | S | 0.39 | 1.45 | 0.050 | -- | ||||||
| 72C00031 | 8-23 | A2 | GP | 32.9 | |||||||||
| 72C00032 | 23-46 | A3 | S | 0.38 | 1.34 | 0.074 | -- | ||||||
| 72C00032 | 23-46 | A3 | GP | 33.9 | |||||||||
| 72C00033 | 46-64 | B1 | S | 0.43 | 1.47 | 0.056 | -- | ||||||
| 72C00033 | 46-64 | B1 | GP | 31.6 | 13.7 | ||||||||
| 72C00034 | 64-102 | B2 | S | 0.60 | 1.71 | 0.047 | -- | ||||||
| 72C00034 | 64-102 | B2 | GP | 16.3 | 6.7 | ||||||||
| 72C00035 | 102-145 | Bk1 | S | 0.66 | 1.71 | 0.041 | -- | ||||||
| 72C00035 | 102-145 | Bk1 | GP | 20.8 | |||||||||
| 72C00036 | 145-168 | Bk2 | S | 0.84 | 1.87 | 0.009 | -- | ||||||
| 72C00036 | 145-168 | Bk2 | GP | 8.0 | |||||||||
| 72C00037 | 168-208 | C | S | 0.70 | 2.13 | 0.014 | -- | ||||||
| 72C00037 | 168-208 | C | GP | 14.5 | 2.5 | ||||||||
| 72C00038 | 64-102 | Bt | S | 0.53 | 1.50 | 0.065 | -- | ||||||
| 72C00038 | 64-102 | Bt | GP | 21.5 | 6.8 | ||||||||
| 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 | 6E1g | 8D1 | 5D2 | |||||||||||||||
| 72C00030 | 0-8 | A1 | S | 1.07 | |||||||||||||||
| 72C00030 | 0-8 | A1 | GP | 5.6 | 3.70 | 1 | |||||||||||||
| 72C00031 | 8-23 | A2 | S | 0.99 | |||||||||||||||
| 72C00031 | 8-23 | A2 | GP | 5.8 | 1.49 | 2 | |||||||||||||
| 72C00032 | 23-46 | A3 | S | 1.01 | |||||||||||||||
| 72C00032 | 23-46 | A3 | GP | 6.3 | 0.94 | 1 | |||||||||||||
| 72C00033 | 46-64 | B1 | S | 1.08 | |||||||||||||||
| 72C00033 | 46-64 | B1 | GP | 6.5 | 0.73 | 2 | |||||||||||||
| 72C00034 | 64-102 | B2 | S | 1.60 | |||||||||||||||
| 72C00034 | 64-102 | B2 | GP | 6.9 | 0.24 | 2 | |||||||||||||
| 72C00035 | 102-145 | Bk1 | S | 1.54 | |||||||||||||||
| 72C00035 | 102-145 | Bk1 | GP | 7.8 | 0.09 | 2 | 2 | ||||||||||||
| 72C00036 | 145-168 | Bk2 | S | 2.31 | |||||||||||||||
| 72C00036 | 145-168 | Bk2 | GP | 8.2 | 0.06 | 22 | 2 | ||||||||||||
| 72C00037 | 168-208 | C | S | 1.81 | |||||||||||||||
| 72C00037 | 168-208 | C | GP | 7.9 | 0.09 | 2 | 1 | ||||||||||||
| 72C00038 | 64-102 | Bt | S | 1.44 | |||||||||||||||
| 72C00038 | 64-102 | Bt | GP | 7.3 | 0.19 | 2 | |||||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 1.08 | (NA) | |
| Clay, carbonate free, Weighted Average | 32 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 32 | % wt | |
| LE, Whole Soil, Summed to 1m | 8 | cm/m | |
| Weighted averages based on control section: 46-64 cm | |||