| *** Primary Characterization Data *** |
| Pedon ID: S1971CA001001 | ( Alameda, California ) | Print Date: Apr 28 2024 7:24AM |
| Sampled as on Oct 3, 1971: | altamont |
| Revised to correlated: | unnamed ; Fine, montmorillonitic, thermic Typic Chromoxererts |
| United States Department of Agriculture | ||||
| SSL | - | Project | NL71CA001 CONTRA COSTA ARE | Natural Resources Conservation Service |
| - | Site ID | S1971CA001001 | National Soil Survey Center | |
| - | Pedon No. | 72C0001 | Soil Survey Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska 68508-3866 | ||
| Layer | Horizon | Orig Hzn | Depth (cm) | Field Label 1 | Field Label 2 | Field Label 3 | Field Texture | Lab Texture |
| 72C00001 | A | A11 | 0-28 | 721 | C | |||
| 72C00002 | AC | A 12 | 10-53 | 722 | CL | |||
| 72C00003 | C | A 13 | 53-71 | 723 | CL | |||
| 72C00004 | AC | A 14 | 71-91 | 724 | CL | |||
| 72C00005 | AC | ACCA | 91-119 | 725 | CL | |||
| 72C00006 | C | C 1 CA | 119-145 | 726 | CL | |||
| 72C00007 | C | C 2 CA | 145-170 | 727 | SIL | |||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Weighted averages based on control section: 25-100 cm | |||
| PSDA & Rock Fragments | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | |||
| (- - - - - Total - - - - - -) | (- - Clay - - -) | (- - - - Silt - - - - -) | (- - - - - - - - - - - - Sand - - - - - - - - - - - -) | ( Rock Fragments (mm) ) | |||||||||||||||||
| Lab | Clay | Silt | Sand | Fine | CO3 | Fine | Coarse | VF | F | M | C | VC | (- - - - - - - - Weight - - - - - - - -) | >2 mm | |||||||
| Text- | < | .002 | .05 | < | < | .002 | .02 | .05 | .10 | .25 | .5 | 1 | 2 | 5 | 20 | .1- | wt % | ||||
| Depth | ure | .002 | -.05 | -2 | .0002 | .002 | -.02 | -.05 | -.10 | -.25 | -.50 | -1 | -2 | -5 | -20 | -75 | 75 | whole | |||
| Layer | (cm) | Horz | Prep | (- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -) | (- - - - - - - % of <75mm - - - - - -) | soil | |||||||||||||||
| 3B1 | 3B1 | 3B1 | |||||||||||||||||||
| 72C00001 | 0-28 | A | S | -- | -- | -- | |||||||||||||||
| 72C00002 | 10-53 | AC | S | -- | -- | -- | |||||||||||||||
| 72C00003 | 53-71 | C | S | -- | -- | -- | |||||||||||||||
| 72C00004 | 71-91 | AC | S | -- | -- | -- | |||||||||||||||
| 72C00005 | 91-119 | AC | S | -- | -- | -- | |||||||||||||||
| 72C00006 | 119-145 | C | S | -- | -- | -- | |||||||||||||||
| 72C00007 | 145-170 | C | S | -- | -- | -- | |||||||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S1971CA001001 | ( Alameda, California ) | Print Date: Apr 28 2024 7:24AM |
| Sampled As | : | altamont | |||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 72C0001 | |||
| Bulk Density & Moisture | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | |||
| (Bulk Density) | Cole | (- - - - - - - - - - - Water Content - - - - - - - - - - -) | ( Air Dry-Oven Dry ) | WRD | Aggst | ||||||||||||
| 33 | Oven | Whole | 6 | 10 | 33 | 1500 | 1500 kPa | (- - - - Ratio - - - -) | Whole | Stabl | (- - Ratio/Clay - -) | ||||||
| Depth | kPa | Dry | Soil | kPa | kPa | kPa | kPa | Moist | Corrected | Soil | 2-0.5mm | CEC7 | 1500 kPa | ||||
| Layer | (cm) | Horz | Prep | (- - - g cm-3 - - -) | (- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -) | cm3 cm-3 | % | ||||||||||
| 4A1d | 4A1h | 4B1c | 4B1c | 3C2a1a | 3D1 | ||||||||||||
| 72C00001 | 0-28 | A | GP | 19.1 | 1.000 | ||||||||||||
| 72C00002 | 10-53 | AC | GP | 1.38 | 1.80 | 33.2 | 29.4 | 17.3 | 1.029 | ||||||||
| 72C00003 | 53-71 | C | GP | 1.34 | 1.74 | 34.7 | 30.8 | 17.7 | 1.029 | ||||||||
| 72C00004 | 71-91 | AC | GP | 1.29 | 1.70 | 36.4 | 32.5 | 17.8 | 1.029 | ||||||||
| 72C00005 | 91-119 | AC | GP | 1.32 | 1.65 | 33.4 | 30.6 | 17.1 | 1.029 | ||||||||
| 72C00006 | 119-145 | C | GP | 13.5 | 1.029 | ||||||||||||
| 72C00007 | 145-170 | C | GP | 13.2 | 1.029 | ||||||||||||
| CEC & Bases | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | |||
| (- - - - - - NH4OAC Extractable Bases - - - - -) | CEC8 | CEC7 | ECEC | (- - - - Base - - - -) | |||||||||||||
| Sum | Acid- | Extr | KCl | Sum | NH4 | Bases | Al | (- Saturation -) | |||||||||
| Depth | Ca | Mg | Na | K | Bases | ity | Al | Mn | Cats | OAC | +Al | Sat | Sum | NH4OAC | |||
| Layer | (cm) | Horz | Prep | (- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -) | mg kg-1 | (- - - - cmol(+) kg-1 - - -) | (- - - - - - - - % - - - - - - - -) | ||||||||||
| 6N2e | 6O2d | 6P2b | 6Q2b | 6H5a | 5A8b | ||||||||||||
| 72C00001 | 0-28 | A | GP | 4.9 | |||||||||||||
| 72C00002 | 10-53 | AC | GP | 30.7 | 6.9 | 0.5 | 0.8 | 3.2 | 43.2 | ||||||||
| 72C00003 | 53-71 | C | GP | 37.4 | 6.8 | 0.6 | 0.7 | 0.1 | 41.1 | ||||||||
| 72C00004 | 71-91 | AC | GP | 36.4 | 6.3 | 0.7 | 0.7 | tr | 38.9 | ||||||||
| 72C00005 | 91-119 | AC | GP | 39.5 | 7.6 | 0.7 | 0.5 | tr | 35.9 | ||||||||
| 72C00006 | 119-145 | C | GP | 27.5 | 4.9 | 0.7 | 0.4 | tr | 29.3 | ||||||||
| 72C00007 | 145-170 | C | GP | 29.6 | 5.0 | 0.9 | 0.4 | tr | 28.7 | ||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S1971CA001001 | ( Alameda, California ) | Print Date: Apr 28 2024 7:24AM |
| Sampled As | : | altamont | |||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 72C0001 | |||
| pH & Carbonates | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | |||
| (- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -) | (- - Carbonate - -) | (- - Gypsum - - -) | ||||||||||||
| CaCl2 | As CaCO3 | As CaSO4*2H2O | Resist | |||||||||||
| Depth | 0.01M | H2O | Sat | <2mm | <20mm | <2mm | <20mm | ohms | ||||||
| Layer | (cm) | Horz | Prep | KCl | 1:2 | 1:1 | Paste | Oxid | NaF | (- - - - - - - - - - - - % - - - - - - - - - - -) | cm-1 | |||
| 4C1a2a | 4C1a2a | |||||||||||||
| 72C00001 | 0-28 | A | GP | 6.3 | 6.6 | |||||||||
| 72C00002 | 10-53 | AC | GP | 6.5 | 6.8 | |||||||||
| 72C00003 | 53-71 | C | GP | 7.4 | 7.8 | |||||||||
| 72C00004 | 71-91 | AC | GP | 7.6 | 7.4 | |||||||||
| 72C00005 | 91-119 | AC | GP | 7.6 | 7.8 | |||||||||
| 72C00006 | 119-145 | C | GP | 7.6 | 8.0 | |||||||||
| 72C00007 | 145-170 | C | GP | 7.6 | 8.1 | |||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S1971CA001001 | ( Alameda, California ) | Print Date: Apr 28 2024 7:24AM |
| Sampled As | : | altamont | |||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 72C0001 | |||
| Clay Mineralogy (<.002 mm) | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | |||
| X-Ray | Thermal | Elemental | EGME | Inter | |||||||||||||||||
| SiO2 | Al2O3 | Fe2O3 | MgO | CaO | K2O | Na2O | Retn | preta | |||||||||||||
| Depth | Fract | 7A2i | | | | | tion | ||||||||||||||
| Layer | (cm) | Horz | ion | ( - - - - - - - - - peak size - - - - - - - - - - ) | (- - - - - - - - - % - - - - - - - - - -) | (- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -) | mg g-1 | ||||||||||||||
| 72C00002 | 10.0-53.0 | AC | tcly | MT 3 | MI 2 | KK 2 | | | | | | | | | | | | | | | |
| 72C00004 | 71.0-91.0 | AC | tcly | MT 3 | KK 2 | MI 1 | | | | | | | | | | | | | | | |
| 72C00005 | 91.0-119.0 | AC | tcly | MT 4 | MI 2 | KK 2 | | | | | | | | | | | | | | | |
| 72C00006 | 119.0-145.0 | C | tcly | MT 3 | KK 2 | MI 1 | | | | | | | | | | | | | | | |
| FRACTION INTERPRETATION: | ||||
| tcly - Total Clay <0.002 mm | | | | |
| MINERAL INTERPRETATION: | ||||
| KK Kaolinite | MI Mica | MT Montmorillonite | | |
| RELATIVE PEAK SIZE: | 5 Very Large | 4 Large | 3 Medium | 2 Small | 1 Very Small | 6 No Peaks |