| *** Taxonomy Characterization Data *** |
| Pedon ID: S2012CA055002 | ( Napa, California ) | Print Date: Apr 12 2026 3:22AM |
| Sampled as on Feb 11, 2013: | Bressa ; Fine-loamy, mixed, active, thermic Typic Haploxeralfs |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | C2015USCA057 MLRA 15 Bay Delta Soil Climate Monitoring | Natural Resources Conservation Service |
| - | Site ID | S2012CA055002 Lat: 38° 36' 50.70" north Long: 122° 20' 58.50" west MLRA: 15 | National Soil Survey Center | |
| - | Pedon No. | 15N0610 | Kellogg 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 | DbWR1 | ||||||||||||
| 15N03448 | 0-22 | A | S | 35.1 | 0.37 | 26 | 1.50 | 0.045 | 2 | 90 | |||
| 15N03449 | 22-41 | 2Ab | S | 28.1 | 0.40 | 29 | 1.58 | 0.032 | 2 | 91 | |||
| 15N03450 | 41-70 | 2Bt1 | S | 54.9 | 0.37 | 19 | 1.39 | 0.081 | 1 | 90 | |||
| 15N03451 | 70-101 | 2Bt2 | S | 47.1 | 0.37 | 34 | 1.48 | 0.066 | 13 | 95 | |||
| 15N03452 | 101-200 | 3C | S | 37.7 | 0.38 | 75 | 57 | 71 | |||||
| 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 | 4H2a | 4E1a1a1a1 | 4F2 | ||||||||||||||||
| 15N03448 | 0-22 | A | S | 7.2 | 0.82 | -- | 100* | 84 | 0.64 | tr | |||||||||
| 15N03449 | 22-41 | 2Ab | S | 6.2 | 0.81 | -- | 94 | 71 | 0.67 | tr | |||||||||
| 15N03450 | 41-70 | 2Bt1 | S | 5.8 | 0.52 | -- | 100* | 78 | 0.59 | 0.57 | 2 | ||||||||
| 15N03451 | 70-101 | 2Bt2 | S | 6.5 | 0.31 | -- | 100* | 81 | 0.66 | 0.55 | 2 | ||||||||
| 15N03452 | 101-200 | 3C | S | 7.2 | 0.29 | -- | 100* | 84 | 0.69 | 0.33 | 1 | ||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 25 | % wt | |
| Volume, >2mm, Weighted Average | 6 | % vol | |
| Clay, total, Weighted Average | 52 | % wt | |
| Clay, carbonate free, Weighted Average | 52 | % wt | |
| CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 4 | 0.62 | (NA) | |
| LE, Whole Soil, Summed to 1m | 6 | cm/m | |
| Weighted averages based on control section: 41-91 cm | |||