| *** Supplementary Characterization Data *** |
| Pedon ID: 77TX027004 | ( Bell, Texas ) | Print Date: Oct 9 2026 11:44PM |
| Sampled as on Jul 1, 1977: | Heiden ; Fine, montmorillonitic, thermic Udic Chromustert |
| Revised to correlated: | Heiden ; Fine, smectitic, thermic Udic Chromusterts |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP78TX001 VERTISOL STUDY | Natural Resources Conservation Service |
| - | Site ID | S1977TX027004 Lat: 31° 0' 18.00" north Long: 97° 18' 33.00" west MLRA: 86 | National Soil Survey Center | |
| - | Pedon No. | 78P0004 | 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 | |||||||||||||||||
| 78P00029 | 0-38 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 96 | 77 | 63 | 53 | 100 | 99 | 99 | 98 | 93 | -- | 0.002 | -- | 12.6 | 0.4 | |||
| 78P00030 | 38-69 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 97 | 78 | 65 | 56 | 100 | 99 | 99 | 99 | 94 | -- | 0.002 | -- | 10.2 | 0.5 | |||
| 78P00031 | 69-97 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 98 | 95 | 80 | 67 | 58 | 99 | 98 | 98 | 97 | 93 | -- | 0.001 | -- | 8.3 | 0.6 | |||
| 78P00032 | 97-142 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 97 | 82 | 67 | 58 | 100 | 99 | 99 | 99 | 95 | -- | 0.001 | -- | 8.3 | 0.6 | |||
| 78P00033 | 142-152 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 86 | 70 | 58 | 100 | 100 | 100 | 100 | 97 | -- | 0.001 | -- | 7.7 | 0.6 | |||
| 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 | ||||||||||||||||||||||||||
| 78P00029 | 0-38 | S | tr | -- | -- | -- | -- | -- | tr | 100 | -- | -- | -- | tr | 100 | 1.36 | 1.90 | 1.80 | 1.85 | 1.36 | 1.55 | 1.90 | 1.80 | 1.85 | 0.95 | 0.95 | ||||
| 78P00030 | 38-69 | S | tr | -- | -- | -- | -- | -- | tr | 100 | -- | -- | tr | tr | 100 | 1.28 | 1.81 | 1.73 | 1.80 | 1.28 | 1.48 | 1.81 | 1.73 | 1.80 | 1.07 | 1.07 | ||||
| 78P00031 | 69-97 | S | tr | -- | -- | -- | -- | -- | tr | 100 | -- | -- | tr | tr | 100 | 1.33 | 1.93 | 1.78 | 1.83 | 1.33 | 1.54 | 1.93 | 1.79 | 1.83 | 0.99 | 0.99 | ||||
| 78P00032 | 97-142 | S | tr | -- | -- | -- | -- | -- | tr | 100 | -- | -- | tr | tr | 100 | 1.39 | 1.96 | 1.85 | 1.87 | 1.39 | 1.57 | 1.96 | 1.84 | 1.87 | 0.91 | 0.91 | ||||
| 78P00033 | 142-152 | S | tr | -- | -- | -- | -- | -- | tr | 100 | -- | -- | -- | tr | 100 | 1.402 | ||||||||||||||
| 78P00034 | 10-20 | S | -- | -- | -- | 1.36 | 1.90 | |||||||||||||||||||||||
| 78P00035 | 40-50 | S | -- | -- | -- | 1.28 | 1.81 | |||||||||||||||||||||||
| 78P00036 | 70-80 | S | -- | -- | -- | 1.33 | 1.93 | |||||||||||||||||||||||
| 78P00037 | 100-100 | S | -- | -- | -- | 1.39 | 1.96 | |||||||||||||||||||||||
| 78P00038 | 130-140 | S | -- | -- | -- | 1.38 | 1.96 | |||||||||||||||||||||||
| *** Supplementary Characterization Data *** |
| Pedon ID: 77TX027004 | ( Bell, Texas ) | Print Date: Oct 9 2026 11:44PM |
| Sampled As | : | Heiden | Fine, montmorillonitic, thermic Udic Chromustert | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 78P0004 | |||
| 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 | |||||||||||||||||||||||||||
| 78P00029 | 0-38 | S | tr | -- | -- | -- | -- | -- | tr | 100 | 4 | 20 | 27 | 5 | 44 | 12 | 0.27 | 0.44 | 4.5 | 4.5 | 0.12 | 0.12 | ||||||
| 78P00030 | 38-69 | S | tr | -- | -- | -- | -- | -- | tr | 100 | 3 | 19 | 27 | 7 | 45 | 12 | 0.13 | 0.44 | 5.0 | 5.0 | 0.13 | 0.13 | ||||||
| 78P00031 | 69-97 | S | tr | -- | -- | -- | -- | -- | tr | 100 | 3 | 18 | 29 | 5 | 45 | 13 | 0.13 | 0.42 | 5.0 | 5.0 | 0.13 | 0.13 | ||||||
| 78P00032 | 97-142 | S | tr | -- | -- | -- | -- | -- | tr | 100 | 2 | 20 | 30 | 2 | 46 | 0.18 | 0.42 | 4.1 | 4.1 | 0.12 | 0.12 | |||||||
| 78P00033 | 142-152 | S | tr | -- | -- | -- | -- | -- | tr | 100 | 1 | 21 | 31 | 47 | 0.23 | 0.39 | ||||||||||||
| 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 | -2 | -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 | 8E1 | 8A1a | ||||||||||||||||||||
| 78P00029 | 0-38 | S | 16 | 84 | 114 | 1 | 1 | 1 | 1 | 12 | 34 | 50 | 114 | c | 7.4 | 39.3 | 53.3 | 7.6 | 0.45 | |||||||
| 78P00030 | 38-69 | S | 13 | 87 | 126 | 1 | 1 | 1 | 1 | 9 | 36 | 51 | 126 | c | 5.7 | 38.6 | 55.7 | 7.6 | 0.52 | |||||||
| 78P00031 | 69-97 | S | 16 | 84 | 138 | 4 | 2 | 1 | 1 | 9 | 31 | 53 | 138 | c | 6.6 | 35.4 | 58.0 | 7.7 | 1.03 | |||||||
| 78P00032 | 97-142 | S | 11 | 89 | 137 | 1 | 1 | 1 | 1 | 7 | 32 | 57 | 137 | c | 4.6 | 37.6 | 57.8 | 7.8 | 540 | 2.37 | ||||||
| 78P00033 | 142-152 | S | 6 | 94 | 140 | tr | tr | tr | tr | 5 | 26 | 67 | 140 | c | 2.7 | 38.9 | 58.4 | 7.5 | 5.49 | |||||||