| *** Taxonomy Characterization Data *** |
| Pedon ID: 78CA033026 | ( Lake, California ) | Print Date: May 18 2024 10:41AM |
| Sampled as on Jun 29, 1978: | Cohasset V ; Fine-loamy, mixed, mesic Ultic Palexeralf |
| Revised to correlated: | Aiken ; Fine, mixed, mesic Xeric Haplohumults |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP78CA178 NAPA AND LAKE COUNTIES | Natural Resources Conservation Service |
| - | Site ID | S1978CA033026 Lat: 38° 50' 0.56" north Long: 122° 40' 52.86" west MLRA: 5 | National Soil Survey Center | |
| - | Pedon No. | 78P0461 | 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 | |||||||||||
| 78P02582 | 0-13 | A1 | S | 28.3 | 0.66 | 39 | 0.70 | 0.018 | 4 | ||||
| 78P02583 | 13-23 | A2 | S | 33.5 | 0.56 | 29 | 0.90 | 3 | |||||
| 78P02584 | 23-51 | B1 | S | 36.4 | 0.54 | 24 | 1.11 | 0.024 | 8 | ||||
| 78P02585 | 51-84 | B2 | S | 40.9 | 0.47 | 26 | 1.10 | 0.019 | 8 | ||||
| 78P02586 | 84-112 | Bt1 | S | 45.6 | 0.48 | 41 | 1.19 | 0.024 | 20 | ||||
| 78P02587 | 112-155 | Bt2 | S | 45.5 | 0.50 | 50 | 1.20 | 45 | |||||
| 78P02588 | 155-188 | Bt3 | S | 45.6 | 0.51 | 20 | 1.19 | 0.016 | 39 | ||||
| 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 | % | |||||||||||
| 8C1a | 6A1c | 5C1 | 5C3 | 5A3b | 8D1 | 5G1 | 5D2 | ||||||||||||
| 78P02582 | 0-13 | A1 | S | 6.0 | 4.45 | 28 | 16 | 0.51 | -- | ||||||||||
| 78P02583 | 13-23 | A2 | S | 5.7 | 1.60 | 31 | 21 | 0.41 | -- | ||||||||||
| 78P02584 | 23-51 | B1 | S | 5.5 | 1.29 | 32 | 26 | 4.8 | 0.38 | 0.13 | 6 | -- | |||||||
| 78P02585 | 51-84 | B2 | S | 5.5 | 0.74 | 30 | 23 | 3.8 | 0.30 | 0.09 | 5 | -- | |||||||
| 78P02586 | 84-112 | Bt1 | S | 5.7 | 0.39 | 38 | 33 | 0.26 | 1 | ||||||||||
| 78P02587 | 112-155 | Bt2 | S | 5.6 | 0.33 | 37 | 30 | 0.25 | 1 | ||||||||||
| 78P02588 | 155-188 | Bt3 | S | 5.4 | 0.37 | 34 | 25 | 4.5 | 0.25 | 0.10 | 13 | 1 | |||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.34 | (NA) | |
| Clay, carbonate free, Weighted Average | 39 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 25 | % wt | |
| Volume, >2mm, Weighted Average | 8 | % vol | |
| Clay, total, Weighted Average | 39 | % wt | |
| Weighted averages based on control section: 23-83 cm | |||