| *** Supplementary Characterization Data *** |
| Pedon ID: 77CA079004 | ( San Luis Obispo, California ) | Print Date: Apr 16 2025 1:27PM |
| Sampled as on Oct 30, 1977: | Los Osos |
| Revised to correlated: | Los Osos ; Fine, smectitic, thermic Typic Argixerolls |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP80CA038 ERODIBILITY STUDY, CAL-DAVIS | Natural Resources Conservation Service |
| - | Site ID | S1977CA079004 Lat: 35° 18' 31.89" north Long: 120° 39' 4.51" west MLRA: 15 | National Soil Survey Center | |
| - | Pedon No. | 80P0065 | Soil Survey Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska 68508-3866 | ||
| Tier 1 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | -19- | -20- | -21- | -22- | -23- | -24- | -25- | |||
| (- - - - - - - - - - - - - - - - - - - - - - Engineering PSDA - - - - - - - - - - - - - - - - - - - - -) | (- - - - - Cumulative Curve Fractions - - - - -) (<75mm) | ( Atter- ) | ( Gradation ) | |||||||||||||||||||||||||
| Percentage Passing Sieve | USDA Less Than Diameters (mm) at | berg | Uni- | Cur- | ||||||||||||||||||||||||
| Depth | 3 | 2 | 3/2 | 1 | 3/4 | 3/8 | 4 | 10 | 40 | 200 | 20 | 5 | 2 | 1. | .5 | .25 | .10 | .05 | 60 | 50 | 10 | LL | PI | fmty | vtur | |||
| Layer | (cm) | Horz | Prep | (-------------------Inches-------------------) | (---------Number---------) | (------Microns----) | (---------Millimeter----------) | (-----Percentile---) | (----%----) | CU | CC | |||||||||||||||||
| 80P00290 | 0-20 | A | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 94 | 63 | 34 | 26 | 20 | 98 | 97 | 86 | 73 | 48 | 0.07 | 0.053 | 0.001 | >100 | 2.2 | ||
| 80P00291 | 20-36 | Bt1 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 96 | 75 | 55 | 48 | 43 | 100 | 98 | 90 | 81 | 65 | 0.03 | 0.008 | -- | 91.4 | 0.1 | ||
| 80P00292 | 36-58 | Bt2 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 95 | 65 | 43 | 37 | 32 | 100 | 98 | 87 | 73 | 53 | 0.06 | 0.037 | -- | >100 | 0.1 | ||
| 80P00293 | 57-69 | Cr | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 90 | 45 | 23 | 19 | 16 | 100 | 96 | 74 | 54 | 31 | 0.13 | 0.089 | 0.001 | >100 | 15.9 | ||
| Tier 2 | -26- | -27- | -28- | -29- | -30- | -31- | -32- | -33- | -34- | -35- | -36- | -37- | -38- | -39- | -40- | -41- | -42- | -43- | -44- | -45- | -46- | -47- | -48- | -49- | -50- | |||||
| (- - - - - - - - - - - - - - - - - - - - - - Weight Fractions - - - - - - - - - - - - - - - - - - - - -) | (- - - - - - - - - - - Weight Per Unit Volume (g cm-3 )- - - - - - - -) | (- - Void - -) | ||||||||||||||||||||||||||||
| Whole Soil (mm) | <75 mm Fraction | Whole Soil | <2 mm Fraction | Ratios | ||||||||||||||||||||||||||
| >2 | 250 | 250 | 75 | 75 | 20 | 5 | 75 | 75 | 20 | 5 | Soil Sur | Engineering | Soil Survey | Engineering | At 33 kPa | |||||||||||||||
| Depth | -UP | -75 | -2 | -20 | -5 | -2 | <2 | -2 | -20 | -5 | -2 | <2 | 33 | Oven | Moist | Satur | 33 | 1500 | Oven | Moist | Satur | Whole | <2 | |||||||
| Layer | (cm) | Horz | Prep | (------------------- % of Whole Soil ------------------) | (--------- % of <75 mm ---------) | kPa | -dry | -ated | kPa | kPa | -dry | -ated | Soil | mm | ||||||||||||||||
| 3B1 | 3B1 | 3B1 | 4A1d | 4A1h | ||||||||||||||||||||||||||
| 80P00290 | 0-20 | A | S | 1 | -- | -- | 1 | -- | tr | 1 | 99 | 1 | -- | tr | 1 | 99 | 1.70 | 1.77 | 1.94 | 2.06 | 1.69 | 1.73 | 1.76 | 1.94 | 2.05 | 0.56 | 0.57 | |||
| 80P00291 | 20-36 | Bt1 | S | -- | -- | -- | -- | -- | -- | -- | 100 | -- | -- | -- | -- | 100 | 1.42 | 1.80 | 1.82 | 1.88 | 1.42 | 1.58 | 1.80 | 1.81 | 1.88 | 0.87 | 0.87 | |||
| 80P00292 | 36-58 | Bt2 | S | -- | -- | -- | -- | -- | -- | -- | 100 | -- | -- | -- | -- | 100 | 1.56 | 1.82 | 1.90 | 1.97 | 1.56 | 1.66 | 1.82 | 1.90 | 1.97 | 0.70 | 0.70 | |||
| 80P00293 | 57-69 | Cr | S | tr | -- | -- | -- | -- | tr | tr | 100 | -- | -- | tr | tr | 100 | 1.451 | |||||||||||||
| Tier 3 | -51- | -52- | -53- | -54- | -55- | -56- | -57- | -58- | -59- | -60- | -61- | -62- | -63- | -64- | -65- | -66- | -67- | -68- | -69- | -70- | -71- | -72- | -73- | -74- | -75- | |||
| (- - - - - - - - - - - - - - - - - Volume Fractions - - - - - - - - - - - - - - - -) | C | (- - - - - - - Ratios To Clay - - - - - -) | (- - Linear Extensiblity - -) | (- - WRD - -) | ||||||||||||||||||||||||
| Whole Soil (mm) At 33 kPa | /N | <2 mm Fraction | Whole Soil | <2 mm | Whole | <2 | ||||||||||||||||||||||
| >2 | 250 | 250 | 75 | 75 | 20 | 5 | 2- | .05- | LT | Pores | Rat | Fine | CEC | 1500 | LEP | 33 kPa | to % | Soil | mm | |||||||||
| Depth | -UP | -75 | -2 | -20 | -5 | -2 | <2 | .05 | .002 | .002 | D | F | -io | Clay | Sum | NH4- | kPa | 33 | 1500 | Oven | 1500 | Oven | ||||||
| Layer | (cm) | Horz | Prep | (----------------------------- % of Whole Soil ---------------------------) | Cats | OAC | H2O | kPa | kPa | -dry | kPa | -dry | (---in3/in3---) | |||||||||||||||
| 8D1 | 4C1 | |||||||||||||||||||||||||||
| 80P00290 | 0-20 | A | S | 1 | -- | -- | 1 | -- | tr | 1 | 99 | 33 | 18 | 13 | 12 | 24 | 0.94 | 0.39 | 0.070 | 0.8 | 0.8 | 0.11 | 0.11 | |||||
| 80P00291 | 20-36 | Bt1 | S | -- | -- | -- | -- | -- | -- | -- | 100 | 19 | 12 | 23 | 6 | 40 | 0.94 | 0.41 | 0.190 | 3.6 | 3.6 | 0.14 | 0.14 | |||||
| 80P00292 | 36-58 | Bt2 | S | -- | -- | -- | -- | -- | -- | -- | 100 | 27 | 12 | 19 | 7 | 34 | 1.10 | 0.44 | 0.160 | 2.1 | 2.1 | 0.12 | 0.12 | |||||
| 80P00293 | 57-69 | Cr | S | tr | -- | -- | -- | -- | tr | tr | 100 | 37 | 9 | 9 | 45 | 1.79 | 0.54 | |||||||||||
| *** Supplementary Characterization Data *** |
| Pedon ID: 77CA079004 | ( San Luis Obispo, California ) | Print Date: Apr 16 2025 1:27PM |
| Sampled As | : | Los Osos | |||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 80P0065 | |||
| Tier 4 | -76- | -77- | -78- | -79- | -80- | -81- | -82- | -83- | -84- | -85- | -86- | -87- | -88- | -89- | -90- | -91- | -92- | -93- | -94- | -95- | -96- | -97- | -98- | |||
| (- - - - - - - - - - - - - - - - - - - Weight Fractions - Clay Free - - - - - - - - - - - - - - - - - -) | Text | PSDA (mm) | pH | Elect. | Part- | |||||||||||||||||||||
| (--------------- Whole Soil ---------------) | (------------------- <2 mm Fraction -------------------) | -ure | Sand | Silt | Clay | Ca | Res- | Con- | -icle | |||||||||||||||||
| >2 | 75 | 20 | 2- | .05- | < | (------------- Sands -------------) | (--- Silts ---) | Cl | by | 2- | .05- | < | Cl2 | ist. | duct | Den- | ||||||||||
| Depth | -20 | -2 | .05 | .002 | .002 | VC | C | M | F | VF | C | F | ay | PSDA | .05 | .002 | .002 | .01M | ohms | dS m-1 | sity | |||||
| Layer | (cm) | Horz | Prep | (- % of >2 mm Sand and Silt -) | (------------------% of Sand and Silt -------------) | <2 mm | (---- % of 2 mm ----) | (-------- <2 mm --------) | g cm-3 | |||||||||||||||||
| 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 8C1e | ||||||||||||||||||||||
| 80P00290 | 0-20 | A | S | 1 | 1 | 1 | 64 | 35 | 25 | 1 | 2 | 13 | 17 | 31 | 17 | 19 | 25 | l | 51.7 | 28.4 | 19.9 | 5.9 | ||||
| 80P00291 | 20-36 | Bt1 | S | 61 | 39 | 75 | 1 | 3 | 14 | 16 | 27 | 18 | 21 | 75 | c | 34.6 | 22.4 | 43.0 | 5.8 | |||||||
| 80P00292 | 36-58 | Bt2 | S | 69 | 31 | 48 | tr | 3 | 17 | 21 | 28 | 15 | 16 | 48 | scl | 46.6 | 21.1 | 32.3 | 5.9 | |||||||
| 80P00293 | 57-69 | Cr | S | 81 | 19 | 19 | tr | 5 | 26 | 23 | 27 | 10 | 9 | 19 | fsl | 68.6 | 15.7 | 15.7 | 5.8 | |||||||