| *** Primary Characterization Data *** |
| Pedon ID: S1971CA001002 | ( Alameda, California ) | Print Date: Apr 27 2024 8:52AM |
| Sampled as on Oct 5, 1971: | Diablo |
| Revised to correlated: | unnamed ; Fine, mixed, thermic Chromic Pelloxererts |
| United States Department of Agriculture | ||||
| SSL | - | Project | NL71CA001 CONTRA COSTA ARE | Natural Resources Conservation Service |
| - | Site ID | S1971CA001002 Lat: 37° 43' 27.67" north Long: 121° 49' 6.73" west MLRA: 15 | National Soil Survey Center | |
| - | Pedon No. | 72C0002 | 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 |
| 72C00010 | Ak1 | A13ca | 51-84 | 7210 | ||||
| 72C00011 | Ak2 | A14ca | 84-114 | 7211 | ||||
| 72C00012 | ABk | ACca | 114-145 | 7212 | ||||
| 72C00013 | Bk1 | C1ca | 145-163 | 7213 | ||||
| 72C00014 | Bk2 | C2ca | 163-190 | 7214 | ||||
| 72C00008 | C | A p | 0-23 | 728 | CL | |||
| 72C00009 | C | A 12 | 23-51 | 729 | CL | |||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0 | (NA) | |
| 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 | |||||||||||||||||||
| 72C00010 | 51-84 | Ak1 | S | -- | -- | -- | |||||||||||||||
| 72C00011 | 84-114 | Ak2 | S | -- | -- | -- | |||||||||||||||
| 72C00012 | 114-145 | ABk | S | -- | -- | -- | |||||||||||||||
| 72C00013 | 145-163 | Bk1 | S | -- | -- | -- | |||||||||||||||
| 72C00014 | 163-190 | Bk2 | S | -- | -- | -- | |||||||||||||||
| 72C00008 | 0-23 | C | S | -- | -- | -- | |||||||||||||||
| 72C00009 | 23-51 | C | S | -- | -- | -- | |||||||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S1971CA001002 | ( Alameda, California ) | Print Date: Apr 27 2024 8:52AM |
| Sampled As | : | Diablo | |||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 72C0002 | |||
| 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 | ||||||||||||
| 72C00010 | 51-84 | Ak1 | GP | 1.39 | 1.85 | 34.3 | 30.6 | 1.046 | |||||||||
| 72C00011 | 84-114 | Ak2 | GP | 1.046 | |||||||||||||
| 72C00012 | 114-145 | ABk | GP | 1.046 | |||||||||||||
| 72C00013 | 145-163 | Bk1 | GP | 1.45 | 1.81 | 30.2 | 27.6 | 1.046 | |||||||||
| 72C00014 | 163-190 | Bk2 | GP | 1.55 | 1.83 | 26.3 | 24.1 | 1.046 | |||||||||
| 72C00008 | 0-23 | C | GP | 16.7 | 1.029 | ||||||||||||
| 72C00009 | 23-51 | C | GP | 1.37 | 1.80 | 33.7 | 29.9 | 17.0 | 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 | ||||||||||||
| 72C00010 | 51-84 | Ak1 | GP | 31.2 | 7.7 | 0.6 | 0.8 | -- | 33.7 | ||||||||
| 72C00011 | 84-114 | Ak2 | GP | 28.5 | 9.8 | 0.7 | 0.7 | -- | 32.0 | ||||||||
| 72C00012 | 114-145 | ABk | GP | 24.9 | 10.5 | 0.9 | 0.7 | -- | 29.3 | ||||||||
| 72C00013 | 145-163 | Bk1 | GP | 20.0 | 11.1 | 1.0 | 0.6 | -- | 27.0 | ||||||||
| 72C00014 | 163-190 | Bk2 | GP | 18.5 | 8.8 | 0.8 | 0.6 | -- | 21.8 | ||||||||
| 72C00008 | 0-23 | C | GP | 25.5 | 6.4 | 0.5 | 0.8 | 3.2 | 36.2 | ||||||||
| 72C00009 | 23-51 | C | GP | 29.1 | 6.0 | 0.5 | 1.0 | 1.1 | 35.4 | ||||||||
| 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 | |||||||||||||
| 72C00008 | 0-23 | C | GP | 6.5 | 7.0 | |||||||||
| 72C00009 | 23-51 | C | GP | 7.0 | 7.3 | |||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S1971CA001002 | ( Alameda, California ) | Print Date: Apr 27 2024 8:52AM |
| Sampled As | : | Diablo | |||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 72C0002 | |||
| 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 | ||||||||||||||
| 72C00014 | 163.0-190.0 | Bk2 | tcly | MT 5 | MI 2 | KK 2 | | | | | | | | | | | | | | | |
| 72C00009 | 23.0-51.0 | C | tcly | MT 3 | MI 3 | KK 3 | | | | | | | | | | | | | | | |
| 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 |