| *** Primary Characterization Data *** |
| Pedon ID: S2018CA111001 | ( Ventura, California ) | Print Date: Dec 5 2025 10:37PM |
| Sampled as on Apr 24, 2018: | Gilroy ; Fine-loamy, mixed, superactive, thermic Typic Argixeroll |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | C2018USCA082 MLRA 14 Novato soils in the North Bay | Natural Resources Conservation Service |
| - | Site ID | S2018CA111001 Lat: 34° 12' 1.83" north Long: 118° 56' 10.55" west MLRA: 20 | National Soil Survey Center | |
| - | Pedon No. | 18N1798 | Kellogg 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 |
| 18N05252 | A | A | 0-12 | S2018CA111001-1 | L | CL | ||
| 18N05253 | Bt1 | Bt1 | 12-22 | S2018CA111001-2 | CL | C | ||
| 18N05254 | Bt2 | Bt2 | 22-32 | S2018CA111001-3 | GR-CL | C | ||
| 18N05255 | Bt3 | Bt3 | 32-52 | S2018CA111001-4 | GR-CL | C | ||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 45 | % wt | |
| Volume, >2mm, Weighted Average | 17 | % vol | |
| Clay, carbonate free, set 2, Weighted Average | 45 | % wt | |
| Clay, total, set 2, Weighted Average | 45 | % wt | |
| CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 7 | 1.5 | (NA) | |
| Weighted averages based on control section: 12-52 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 | |||||||||||||||
| 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | |||||||||||||||
| 18N05252 | 0-12 | A | S | cl | 35.6 | 29.8 | 34.6 | 17.5 | 12.3 | 10.7 | 9.8 | 4.3 | 5.3 | 4.5 | 7 | 18 | 3 | 45 | 28 | ||
| 18N05253 | 12-22 | Bt1 | S | c | 43.3 | 27.1 | 29.6 | 16.5 | 10.6 | 10.2 | 7.7 | 4.4 | 4.2 | 3.1 | 5 | 9 | 3 | 33 | 17 | ||
| 18N05254 | 22-32 | Bt2 | S | c | 48.4 | 25.1 | 26.5 | 15.8 | 9.3 | 10.1 | 6.4 | 3.6 | 3.4 | 3.0 | 8 | 10 | 9 | 39 | 27 | ||
| 18N05255 | 32-52 | Bt3 | S | c | 43.4 | 18.5 | 38.1 | 14.0 | 4.5 | 9.6 | 12.1 | 7.7 | 5.7 | 3.0 | 5 | 15 | 16 | 54 | 36 | ||
| *** Primary Characterization Data *** |
| Pedon ID: S2018CA111001 | ( Ventura, California ) | Print Date: Dec 5 2025 10:37PM |
| Sampled As | : | Gilroy | Fine-loamy, mixed, superactive, thermic Typic Argixeroll | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 18N1798 | |||
| 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 | % | ||||||||||
| DbWR1 | DbWR1 | DbWR1 | 3C2a1a | 3D1 | |||||||||||||
| 18N05252 | 0-12 | A | S | 18.6 | 1.075 | 1.48 | 0.52 | ||||||||||
| 18N05253 | 12-22 | Bt1 | S | 20.9 | 1.092 | 1.34 | 0.48 | ||||||||||
| 18N05254 | 22-32 | Bt2 | S | 1.29 | 1.82 | 0.099 | 33.7 | 23.1 | 1.100 | 0.12 | 1.25 | 0.48 | |||||
| 18N05255 | 32-52 | Bt3 | S | 1.32 | 1.58 | 0.047 | 29.7 | 27.1 | 1.124 | 0.03 | 1.71 | 0.62 | |||||
| Water Content | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | |||||||
| (- - Atterberg - -) | (- - - - - Bulk Density - - - - -) | (- - - - - - - - - - - - - - - - - - - - - - - Water Content - - - - - - - - - - - - - - - - - - - - -) | ||||||||||||||||||
| (- - - Limits - - -) | Field | Recon | Recon | Field | Recon | (- - - - - - - - - - - - - - Sieved Samples - - - - - - - - - - - - -) | ||||||||||||||
| LL | PI | 33 | Oven | 33 | 6 | 10 | 33 | 100 | 200 | 500 | ||||||||||
| Depth | kPa | Dry | kPa | kPa | kPa | kPa | kPa | kPa | kPa | |||||||||||
| Layer | (cm) | Horz | Prep | pct <0.4mm | (- - - - - - - - g cm-3 - - - - - - -) | (- - - - - - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - - - - - - -) | ||||||||||||||
| 3B3 | 3B3 | |||||||||||||||||||
| 18N05252 | 0-12 | A | CMPCAV | 0.73 | 10.2 | |||||||||||||||
| 18N05253 | 12-22 | Bt1 | CMPCAV | 0.95 | 20.6 | |||||||||||||||
| Carbon & Extractions | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | -19- | |||
| (- - - - - Total - - - - -) | Est | OC | C/N | (- - - Dith-Cit Ext - - -) | (- - - - - - Ammonium Oxalate Extraction - - - - - -) | (- - - Na Pyro-Phosphate - - -) | ||||||||||||||||
| Depth | C | N | S | OC | (WB) | Ratio | Fe | Al | Mn | Al+½Fe | ODOE | Fe | Al | Si | Mn | C | Fe | Al | Mn | |||
| Layer | (cm) | Horz | Prep | (- - - - - - - - - - % of <2 mm - - - - - - - - - -) | (- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -) | mg kg-1 | (- - - - - - % of < 2mm - - - - -) | |||||||||||||||
| 4H2a | 4H2a | 4H2a | ||||||||||||||||||||
| 18N05252 | 0-12 | A | S | 3.12 | 0.27 | 0.07 | 3.1 | 12 | ||||||||||||||
| 18N05253 | 12-22 | Bt1 | S | 1.22 | 0.15 | 0.03 | 1.2 | 8 | ||||||||||||||
| 18N05254 | 22-32 | Bt2 | S | 1.01 | 0.15 | 0.03 | 1.0 | 7 | ||||||||||||||
| 18N05255 | 32-52 | Bt3 | S | 0.72 | 0.13 | 0.02 | 0.7 | 5 | ||||||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S2018CA111001 | ( Ventura, California ) | Print Date: Dec 5 2025 10:37PM |
| Sampled As | : | Gilroy | Fine-loamy, mixed, superactive, thermic Typic Argixeroll | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 18N1798 | |||
| 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 - - -) | (- - - - - - - - % - - - - - - - -) | ||||||||||
| 4B1a1a | 4B1a1a | 4B1a1a | 4B1a1a | 4B2b1a1 | 4B1a1a | ||||||||||||
| 18N05252 | 0-12 | A | S | 30.2* | 18.6 | 2.3 | 1.8 | 52.9 | 14.0 | 66.9 | 52.8 | 79 | 100 | ||||
| 18N05253 | 12-22 | Bt1 | S | 33.9* | 24.4 | 3.7 | 0.6 | 62.6 | 9.6 | 72.2 | 58.0 | 87 | 100 | ||||
| 18N05254 | 22-32 | Bt2 | S | 35.8* | 26.1 | 3.3 | 0.5 | 65.7 | 9.3 | 75.0 | 60.7 | 88 | 100 | ||||
| 18N05255 | 32-52 | Bt3 | S | 42.6* | 32.4 | 4.4 | 0.3 | 79.7 | 11.6 | 91.3 | 74.1 | 87 | 100 | ||||
| Salt | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | -19- | -20- | |||
| (- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Extracted From Saturated Paste - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -) | 1:2 | ||||||||||||||||||||||
| Total | Elec | Elec | Exch | ||||||||||||||||||||
| Depth | Ca | Mg | Na | K | CO3 | HCO3 | F | Cl | PO4 | Br | OAC | SO4 | NO2 | NO3 | H2O | Salts | Cond | Cond | Na | SAR | |||
| Layer | (cm) | Horz | Prep | (- - - - - mmol(+) L-1 - - - - -) | (- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -) | (- - - - % - - - -) | (- - dS m-1 - -) | % | |||||||||||||||
| 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F2 | 4F1a1a1 | |||||||
| 18N05252 | 0-12 | A | S | 1.4 | 1.4 | 0.9 | 0.1 | -- | 0.8 | tr | 0.6 | tr | -- | 0.2 | 0.6 | 0.1 | -- | 68.6 | 0.33 | 0.28 | 4 | 1 | |
| 18N05253 | 12-22 | Bt1 | S | 0.16 | 6 | ||||||||||||||||||
| 18N05254 | 22-32 | Bt2 | S | 0.14 | 5 | ||||||||||||||||||
| 18N05255 | 32-52 | Bt3 | S | 0.12 | 6 | ||||||||||||||||||
| 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 | 4F2 | ||||||||||||
| 18N05252 | 0-12 | A | S | 5.4 | 6.1 | 5.9 | ||||||||
| 18N05253 | 12-22 | Bt1 | S | 6.1 | 6.7 | |||||||||
| 18N05254 | 22-32 | Bt2 | S | 6.2 | 6.9 | |||||||||
| 18N05255 | 32-52 | Bt3 | S | 6.2 | 6.8 | |||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S2018CA111001 | ( Ventura, California ) | Print Date: Dec 5 2025 10:37PM |
| Sampled As | : | Gilroy | Fine-loamy, mixed, superactive, thermic Typic Argixeroll | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 18N1798 | |||
| 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 | 7A1b1 | tion | ||||||||||||||||||
| Layer | (cm) | Horz | ion | ( - - - - - - - - - peak size - - - - - - - - - - ) | (- - - - - - - - - % - - - - - - - - - -) | (- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -) | mg g-1 | ||||||||||||||
| 18N05253 | 12.0-22.0 | Bt1 | tcly | VR 3 | KK 1 | VERM | |||||||||||||||
| 18N05254 | 22.0-32.0 | Bt2 | tcly | VR 3 | MT 2 | KK 1 | VERM | ||||||||||||||
| FRACTION INTERPRETATION: | ||||
| tcly - Total Clay <0.002 mm | ||||
| MINERAL INTERPRETATION: | ||||
| KK Kaolinite | MT Montmorillonite | VR Vermiculite | ||
| RELATIVE PEAK SIZE: | 5 Very Large | 4 Large | 3 Medium | 2 Small | 1 Very Small | 6 No Peaks |
| INTERPRETATION (BY HORIZON): | ||||
| VERM - Vermiculitic | ||||