| *** Primary Characterization Data *** |
| Pedon ID: S2019MD031027 | ( Montgomery, Maryland ) | Print Date: Dec 8 2025 5:12PM |
| Sampled as on Oct 23, 2019: | Comus ; Coarse-loamy, mixed, active, mesic Fluventic Dystrudept |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | I2020USMD054 Potomac River Island Project P Index Part 2 | Natural Resources Conservation Service |
| - | Site ID | S2019MD031027 Lat: 39° 4' 4.05" north Long: 77° 23' 14.66" west MLRA: 148 | National Soil Survey Center | |
| - | Pedon No. | 20N0353 | 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 |
| 20N01562 | A2 | A2 | 0-15 | S2019MD031027-1 | ||||
| 20N01563 | Bw1 | Bw1 | 15-30 | S2019MD031027-2 | ||||
| 20N01564 | Bw2 | Bw2 | 30-45 | S2019MD031027-3 | ||||
| 20N01565 | Bw2 | Bw2 | 45-60 | S2019MD031027-4 | ||||
| 20N01566 | Bw2 | Bw2 | 60-75 | S2019MD031027-5 | ||||
| 20N01567 | Bw2 | Bw2 | 75-90 | S2019MD031027-6 | ||||
| 20N01568 | BC1 | BC1 | 90-105 | S2019MD031027-7 | ||||
| 20N01569 | BC2 | BC2 | 105-135 | S2019MD031027-8 | ||||
| 20N01570 | BC2 | BC2 | 135-165 | S2019MD031027-9 | ||||
| 20N01571 | BC2 | BC2 | 165-195 | S2019MD031027-10 | ||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 0 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Weighted averages based on control section: 25-100 cm | |||
| *** Primary Characterization Data *** |
| Pedon ID: S2019MD031027 | ( Montgomery, Maryland ) | Print Date: Dec 8 2025 5:12PM |
| Sampled As | : | Comus | Coarse-loamy, mixed, active, mesic Fluventic Dystrudept | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 20N0353 | |||
| 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 | |||||||||||||||
| 20N01562 | 0-15 | A2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01563 | 15-30 | Bw1 | S | tr | tr | -- | -- | 1 | |||||||||||||
| 20N01564 | 30-45 | Bw2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01565 | 45-60 | Bw2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01566 | 60-75 | Bw2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01567 | 75-90 | Bw2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01568 | 90-105 | BC1 | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01569 | 105-135 | BC2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01570 | 135-165 | BC2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01571 | 165-195 | BC2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 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 | % | ||||||||||
| 3D1 | |||||||||||||||||
| 20N01562 | 0-15 | A2 | S | 1.014 | |||||||||||||
| 20N01563 | 15-30 | Bw1 | S | 1.012 | |||||||||||||
| 20N01564 | 30-45 | Bw2 | S | 1.012 | |||||||||||||
| 20N01565 | 45-60 | Bw2 | S | 1.009 | |||||||||||||
| 20N01566 | 60-75 | Bw2 | S | 1.009 | |||||||||||||
| 20N01567 | 75-90 | Bw2 | S | 1.009 | |||||||||||||
| 20N01568 | 90-105 | BC1 | S | 1.009 | |||||||||||||
| 20N01569 | 105-135 | BC2 | S | 1.011 | |||||||||||||
| 20N01570 | 135-165 | BC2 | S | 1.013 | |||||||||||||
| 20N01571 | 165-195 | BC2 | S | 1.012 | |||||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S2019MD031027 | ( Montgomery, Maryland ) | Print Date: Dec 8 2025 5:12PM |
| Sampled As | : | Comus | Coarse-loamy, mixed, active, mesic Fluventic Dystrudept | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 20N0353 | |||
| 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 | |||||||||||||
| 20N01562 | 0-15 | A2 | S | 5.2 | 5.4 | |||||||||
| 20N01563 | 15-30 | Bw1 | S | 5.5 | 5.9 | |||||||||
| 20N01564 | 30-45 | Bw2 | S | 6.3 | 6.3 | |||||||||
| 20N01565 | 45-60 | Bw2 | S | 6.2 | 6.5 | |||||||||
| 20N01566 | 60-75 | Bw2 | S | 5.8 | 6.8 | |||||||||
| 20N01567 | 75-90 | Bw2 | S | 5.6 | 6.6 | |||||||||
| 20N01568 | 90-105 | BC1 | S | 5.5 | 6.5 | |||||||||
| 20N01569 | 105-135 | BC2 | S | 5.2 | 5.6 | |||||||||
| 20N01570 | 135-165 | BC2 | S | 5.9 | 6.2 | |||||||||
| 20N01571 | 165-195 | BC2 | S | 6.2 | 6.4 | |||||||||
| Phosphorous | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | |||
| (- - - - - - - - - - - - - - - - - - - - - - - Phosphorous - - - - - - - - - - - - - - - - - - - - -) | KCl | ||||||||||||||
| Melanic | NZ | Acid | Anion Exch Resin | Bray | Bray | Olsen | H2O | Citric | Mehlich | Extr | |||||
| Depth | Index | Oxal | Available | Capacity | 1 | 2 | Acid | III | NO3 | ||||||
| Layer | (cm) | Horz | Prep | % | (- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -) | ||||||||||
| 4D6a1 | |||||||||||||||
| 20N01562 | 0-15 | A2 | S | 7.3 | |||||||||||
| 20N01563 | 15-30 | Bw1 | S | 4.9 | |||||||||||
| 20N01564 | 30-45 | Bw2 | S | 4.4 | |||||||||||
| 20N01565 | 45-60 | Bw2 | S | 7.9 | |||||||||||
| 20N01566 | 60-75 | Bw2 | S | 5.8 | |||||||||||
| 20N01567 | 75-90 | Bw2 | S | 6.5 | |||||||||||
| 20N01568 | 90-105 | BC1 | S | 6.5 | |||||||||||
| 20N01569 | 105-135 | BC2 | S | 4.2 | |||||||||||
| 20N01570 | 135-165 | BC2 | S | 7.1 | |||||||||||
| 20N01571 | 165-195 | BC2 | S | 4.6 | |||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S2019MD031027 | ( Montgomery, Maryland ) | Print Date: Dec 8 2025 5:12PM |
| Sampled As | : | Comus | Coarse-loamy, mixed, active, mesic Fluventic Dystrudept | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 20N0353 | |||
| Major Elements | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | |||
| Depth | Al | Ca | Fe | K | Mg | Mn | Na | P | Si | Sr | Ti | Zr | |||
| Layer | (cm) | Horz | Prep | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg |
| 4H1b | 4H1b | 4H1b | 4H1b | 4H1b | 4H1b | 4H1b | 4H1b | 4H1b | 4H1b | 4H1b | 4H1b | ||||
| 20N01562 | 0-15 | A2 | HM | 55117 | 5741 | 30868 | 15584 | 4885 | 987 | 4408 | 623 | 276275 | 74 | 5385 | 143 |
| 20N01563 | 15-30 | Bw1 | HM | 51074 | 4742 | 30577 | 15271 | 4838 | 902 | 4700 | 522 | 312793 | 71 | 5418 | 125 |
| 20N01564 | 30-45 | Bw2 | HM | 56848 | 5474 | 32359 | 16574 | 5159 | 959 | 4615 | 485 | 322769 | 77 | 5746 | 140 |
| 20N01565 | 45-60 | Bw2 | HM | 41699 | 4130 | 25845 | 12842 | 3860 | 750 | 3858 | 347 | 325127 | 61 | 4823 | 122 |
| 20N01566 | 60-75 | Bw2 | HM | 41043 | 4323 | 25689 | 11991 | 3909 | 708 | 3941 | 405 | 357522 | 65 | 4682 | 116 |
| 20N01567 | 75-90 | Bw2 | HM | 38692 | 3573 | 22521 | 11211 | 3249 | 642 | 3231 | 363 | 336463 | 55 | 3984 | 119 |
| 20N01568 | 90-105 | BC1 | HM | 39269 | 3032 | 22356 | 11337 | 3177 | 654 | 3145 | 354 | 325347 | 53 | 3959 | 123 |
| 20N01569 | 105-135 | BC2 | HM | 46202 | 2769 | 25935 | 13019 | 3638 | 663 | 3312 | 444 | 339214 | 60 | 4289 | 129 |
| 20N01570 | 135-165 | BC2 | HM | 52458 | 3536 | 27686 | 14866 | 3838 | 742 | 3152 | 517 | 323623 | 63 | 4388 | 144 |
| 20N01571 | 165-195 | BC2 | HM | 45880 | 2974 | 25047 | 13182 | 3463 | 659 | 2912 | 363 | 307402 | 58 | 3971 | 122 |