| *** Supplementary Characterization Data *** |
| Pedon ID: 81AK261021 | ( Valdez-Cordova Census Area, Alaska ) | Print Date: Nov 6 2026 1:20PM |
| Sampled as on Jul 1, 1981: | Kenny Lake ; Coarse-silty over clayey, mixed Typic Cryochrept |
| Revised to correlated: | Kenny Lake ; Coarse-silty over clayey, mixed Cumulic Cryoborolls |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP81AK277 COPPER RIVER SSA | Natural Resources Conservation Service |
| - | Site ID | S1981AK261021 Lat: 61° 42' 0.00" north Long: 144° 44' 0.01" west MLRA: 172 | National Soil Survey Center | |
| - | Pedon No. | 81P0684 | 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 | |||||||||||||||||
| 4F1 | 4F | |||||||||||||||||||||||||||
| 81P04082 | 6-0 | Oi | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 89 | 34 | 14 | 2 | 100 | 100 | 99 | 95 | 79 | 0.03 | 0.028 | 0.004 | 9.3 | 1.9 | ||
| 81P04083 | 0-7 | Bw1 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 94 | 34 | 15 | 2 | 100 | 100 | 100 | 98 | 89 | 0.03 | 0.026 | 0.003 | 8.8 | 2.0 | ||
| 81P04084 | 7-14 | AB | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 93 | 34 | 16 | 4 | 100 | 100 | 100 | 98 | 86 | 0.03 | 0.026 | 0.003 | 9.9 | 2.1 | ||
| 81P04085 | 14-29 | Bw2 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 88 | 29 | 14 | 5 | 100 | 100 | 100 | 96 | 72 | 0.04 | 0.031 | 0.003 | 18 | 1 | 11.5 | 3.2 |
| 81P04086 | 29-50 | C | S | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 98 | 96 | 84 | 32 | 17 | 8 | 97 | 96 | 95 | 91 | 70 | 0.04 | 0.031 | 0.003 | 36 | 16 | 15.5 | 2.8 |
| 81P04087 | 50-67 | 2C1 | S | 100 | 100 | 100 | 100 | 100 | 94 | 87 | 76 | 59 | 46 | 42 | 36 | 32 | 68 | 61 | 53 | 47 | 45 | 0.47 | 0.155 | -- | 54 | 25 | >100 | -- |
| 81P04088 | 67-95 | 2C2 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 93 | 78 | 69 | 100 | 100 | 100 | 99 | 98 | -- | 0.001 | -- | 5.3 | 0.7 | ||
| 81P04089 | 95-130 | 2C3 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 97 | 87 | 68 | 56 | 100 | 100 | 99 | 98 | 96 | -- | 0.002 | -- | 9.1 | 0.6 | ||
| 81P04090 | 130-165 | 2C4 | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 97 | 84 | 76 | 100 | 100 | 100 | 99 | 99 | -- | 0.001 | -- | 4.6 | 0.7 | ||
| 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 | ||||||||||||||||||||||||||
| 81P04082 | 6-0 | Oi | S | -- | -- | -- | -- | -- | -- | -- | 100 | -- | -- | -- | -- | 100 | 0.88 | 0.91 | 1.21 | 1.55 | 0.88 | 0.90 | 0.91 | 1.20 | 1.55 | 2.01 | 2.01 | |||
| 81P04083 | 0-7 | Bw1 | S | -- | -- | -- | -- | -- | -- | -- | 100 | -- | -- | -- | tr | 100 | 0.802 | |||||||||||||
| 81P04084 | 7-14 | AB | S | -- | -- | -- | -- | -- | -- | -- | 100 | -- | -- | -- | tr | 100 | 1.22 | 1.23 | 1.50 | 1.76 | 1.22 | 1.23 | 1.23 | 1.51 | 1.76 | 1.17 | 1.17 | |||
| 81P04085 | 14-29 | Bw2 | S | tr | -- | -- | -- | -- | tr | tr | 100 | -- | -- | tr | tr | 100 | 1.44 | 1.44 | 1.68 | 1.90 | 1.43 | 1.43 | 1.43 | 1.67 | 1.89 | 0.84 | 0.85 | |||
| 81P04086 | 29-50 | C | S | 2 | -- | -- | 2 | -- | 1 | 1 | 98 | 2 | -- | 1 | 1 | 98 | 1.67 | 1.69 | 1.89 | 2.04 | 1.66 | 1.67 | 1.68 | 1.87 | 2.03 | 0.59 | 0.60 | |||
| 81P04087 | 50-67 | 2C1 | S | 24 | -- | -- | 24 | -- | 13 | 11 | 76 | 24 | -- | 13 | 11 | 76 | 1.71 | 1.76 | 1.93 | 2.06 | 1.54 | 1.56 | 1.59 | 1.81 | 1.96 | 0.55 | 0.72 | |||
| 81P04088 | 67-95 | 2C2 | S | tr | -- | -- | -- | -- | tr | tr | 100 | -- | -- | tr | tr | 100 | 1.34 | 1.44 | 1.73 | 1.83 | 1.34 | 1.36 | 1.44 | 1.72 | 1.83 | 0.98 | 0.98 | |||
| 81P04089 | 95-130 | 2C3 | S | tr | -- | -- | -- | -- | tr | tr | 100 | -- | -- | tr | tr | 100 | 1.39 | 1.46 | 1.77 | 1.87 | 1.38 | 1.40 | 1.45 | 1.76 | 1.86 | 0.91 | 0.92 | |||
| 81P04090 | 130-165 | 2C4 | S | -- | -- | -- | -- | -- | -- | -- | 100 | -- | -- | tr | tr | 100 | 1.38 | 1.50 | 1.77 | 1.86 | 1.38 | 1.40 | 1.50 | 1.77 | 1.86 | 0.92 | 0.92 | |||
| *** Supplementary Characterization Data *** |
| Pedon ID: 81AK261021 | ( Valdez-Cordova Census Area, Alaska ) | Print Date: Nov 6 2026 1:20PM |
| Sampled As | : | Kenny Lake | Coarse-silty over clayey, mixed Typic Cryochrept | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 81P0684 | |||
| 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 | |||||||||||||||||||||||||||
| 81P04082 | 6-0 | Oi | S | -- | -- | -- | -- | -- | -- | -- | 100 | 7 | 26 | 1 | 34 | 33 | 21 | 5.29 | 0.650 | 0.8 | 0.8 | 0.24 | 0.24 | |||||
| 81P04083 | 0-7 | Bw1 | S | -- | -- | -- | -- | -- | -- | -- | 100 | 3 | 26 | 1 | 70 | 25 | 8.22 | |||||||||||
| 81P04084 | 7-14 | AB | S | -- | -- | -- | -- | -- | -- | -- | 100 | 6 | 38 | 2 | 26 | 28 | 24 | 2.26 | 0.080 | 0.3 | 0.3 | 0.18 | 0.18 | |||||
| 81P04085 | 14-29 | Bw2 | S | tr | -- | -- | -- | -- | tr | tr | 100 | 15 | 37 | 2 | 22 | 24 | 15 | 1.29 | 0.15 | 0.15 | ||||||||
| 81P04086 | 29-50 | C | S | 1 | -- | -- | 1 | -- | 1 | 1 | 99 | 17 | 39 | 5 | 15 | 22 | 13 | 0.70 | 0.050 | 0.2 | 0.2 | 0.12 | 0.12 | |||||
| 81P04087 | 50-67 | 2C1 | S | 16 | -- | -- | 16 | -- | 8 | 7 | 84 | 20 | 8 | 21 | 13 | 22 | 0.30 | 0.030 | 0.4 | 0.4 | 0.07 | 0.08 | ||||||
| 81P04088 | 67-95 | 2C2 | S | tr | -- | -- | -- | -- | tr | tr | 100 | 1 | 15 | 34 | 10 | 39 | 14 | 0.34 | 0.030 | 0.5 | 0.5 | 0.07 | 0.07 | |||||
| 81P04089 | 95-130 | 2C3 | S | tr | -- | -- | -- | -- | tr | tr | 100 | 2 | 21 | 29 | 10 | 38 | 0.39 | 0.030 | 0.5 | 0.5 | 0.08 | 0.08 | ||||||
| 81P04090 | 130-165 | 2C4 | S | -- | -- | -- | -- | -- | -- | -- | 100 | 1 | 12 | 40 | 9 | 39 | 0.32 | 0.040 | 0.5 | 0.5 | 0.06 | 0.06 | ||||||
| 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 | 4C1a2a | 8E1 | |||||||||||||||||||||
| 81P04082 | 6-0 | Oi | S | 21 | 79 | 2 | tr | 1 | 4 | 15 | 46 | 33 | 2 | sil | 20.6 | 77.7 | 1.7 | 7.4 | ||||||||
| 81P04083 | 0-7 | Bw1 | S | 11 | 89 | 2 | tr | tr | 2 | 9 | 56 | 33 | 2 | si | 10.9 | 86.8 | 2.3 | 7.3 | ||||||||
| 81P04084 | 7-14 | AB | S | 14 | 86 | 4 | tr | tr | tr | 2 | 12 | 54 | 32 | 4 | si | 13.9 | 82.3 | 3.8 | 7.3 | |||||||
| 81P04085 | 14-29 | Bw2 | S | 29 | 71 | 5 | tr | tr | 4 | 25 | 45 | 25 | 5 | sil | 28.1 | 67.4 | 4.5 | 7.3 | ||||||||
| 81P04086 | 29-50 | C | S | 2 | 2 | 2 | 30 | 68 | 8 | 1 | 1 | 1 | 5 | 23 | 42 | 27 | 8 | sil | 28.2 | 64.1 | 7.7 | 7.4 | ||||
| 81P04087 | 50-67 | 2C1 | S | 35 | 35 | 35 | 46 | 19 | 46 | 17 | 17 | 16 | 15 | 5 | 6 | 24 | 72 | c | 41.1 | 17.2 | 41.7 | 7.7 | ||||
| 81P04088 | 67-95 | 2C2 | S | 5 | 95 | 221 | tr | 1 | 2 | 3 | 18 | 77 | 221 | c | 1.7 | 29.5 | 68.8 | 7.8 | ||||||||
| 81P04089 | 95-130 | 2C3 | S | 10 | 90 | 126 | tr | tr | 1 | 2 | 6 | 20 | 70 | 126 | c | 4.4 | 39.8 | 55.8 | 7.6 | |||||||
| 81P04090 | 130-165 | 2C4 | S | 5 | 95 | 315 | tr | 1 | 2 | 1 | 7 | 88 | 315 | c | 1.1 | 23.0 | 75.9 | 7.9 | 1700 | |||||||