| *** Primary Characterization Data *** |
| Pedon ID: S2020MD031037 | ( Montgomery, Maryland ) | Print Date: Apr 11 2026 1:27PM |
| Sampled as on May 26, 2020: | Huntington ; Fine-silty, mixed, active, mesic Fluventic Hapludoll |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | I2021USMD022 Potomac River Island Project P Index Part 3 | Natural Resources Conservation Service |
| - | Site ID | S2020MD031037 Lat: 39° 4' 16.78" north Long: 77° 25' 27.21" west MLRA: 148 | National Soil Survey Center | |
| - | Pedon No. | 21N0208 | 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 |
| 21N00928 | A1 | A1 | 0-15 | S2020MD031037-1 | L | |||
| 21N00929 | A2 | A2 | 15-30 | S2020MD031037-2 | L | |||
| 21N00930 | Ab | Ab | 30-45 | S2020MD031037-3 | SIL | |||
| 21N00931 | Ab | Ab | 45-60 | S2020MD031037-4 | SIL | |||
| 21N00932 | Bw1 | Bw1 | 60-75 | S2020MD031037-5 | SIL | |||
| 21N00933 | Bw1 | Bw1 | 75-90 | S2020MD031037-6 | SIL | |||
| 21N00934 | Bw1 | Bw1 | 90-105 | S2020MD031037-7 | SIL | |||
| 21N00935 | Bw2 | Bw2 | 105-135 | S2020MD031037-8 | SICL | |||
| 21N00936 | Bw2 | Bw2 | 135-165 | S2020MD031037-9 | SICL | |||
| 21N00937 | Bw3 | Bw3 | 165-195 | S2020MD031037-10 | SICL | |||
| 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: S2020MD031037 | ( Montgomery, Maryland ) | Print Date: Apr 11 2026 1:27PM |
| Sampled As | : | Huntington | Fine-silty, mixed, active, mesic Fluventic Hapludoll | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 21N0208 | |||
| 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 | |||||||||||||||
| 21N00928 | 0-15 | A1 | S | -- | -- | -- | -- | -- | |||||||||||||
| 21N00929 | 15-30 | A2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 21N00930 | 30-45 | Ab | S | -- | -- | -- | -- | -- | |||||||||||||
| 21N00931 | 45-60 | Ab | S | -- | -- | -- | -- | -- | |||||||||||||
| 21N00932 | 60-75 | Bw1 | S | -- | -- | -- | -- | -- | |||||||||||||
| 21N00933 | 75-90 | Bw1 | S | -- | -- | -- | -- | -- | |||||||||||||
| 21N00934 | 90-105 | Bw1 | S | -- | -- | -- | -- | -- | |||||||||||||
| 21N00935 | 105-135 | Bw2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 21N00936 | 135-165 | Bw2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 21N00937 | 165-195 | Bw3 | 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 | |||||||||||||||||
| 21N00928 | 0-15 | A1 | S | 1.022 | |||||||||||||
| 21N00929 | 15-30 | A2 | S | 1.014 | |||||||||||||
| 21N00930 | 30-45 | Ab | S | 1.012 | |||||||||||||
| 21N00931 | 45-60 | Ab | S | 1.016 | |||||||||||||
| 21N00932 | 60-75 | Bw1 | S | 1.019 | |||||||||||||
| 21N00933 | 75-90 | Bw1 | S | 1.020 | |||||||||||||
| 21N00934 | 90-105 | Bw1 | S | 1.021 | |||||||||||||
| 21N00935 | 105-135 | Bw2 | S | 1.022 | |||||||||||||
| 21N00936 | 135-165 | Bw2 | S | 1.022 | |||||||||||||
| 21N00937 | 165-195 | Bw3 | S | 1.019 | |||||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S2020MD031037 | ( Montgomery, Maryland ) | Print Date: Apr 11 2026 1:27PM |
| Sampled As | : | Huntington | Fine-silty, mixed, active, mesic Fluventic Hapludoll | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 21N0208 | |||
| 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 | |||||||||||||
| 21N00928 | 0-15 | A1 | S | 6.2 | 6.5 | |||||||||
| 21N00929 | 15-30 | A2 | S | 6.4 | 6.8 | |||||||||
| 21N00930 | 30-45 | Ab | S | 6.4 | 6.9 | |||||||||
| 21N00931 | 45-60 | Ab | S | 6.4 | 7.0 | |||||||||
| 21N00932 | 60-75 | Bw1 | S | 6.3 | 6.9 | |||||||||
| 21N00933 | 75-90 | Bw1 | S | 6.4 | 7.2 | |||||||||
| 21N00934 | 90-105 | Bw1 | S | 6.3 | 7.2 | |||||||||
| 21N00935 | 105-135 | Bw2 | S | 6.0 | 6.9 | |||||||||
| 21N00936 | 135-165 | Bw2 | S | 5.4 | 6.3 | |||||||||
| 21N00937 | 165-195 | Bw3 | S | 4.5 | 5.2 | |||||||||
| 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 - - - - - - - - - - - - - - - - - - - -) | ||||||||||
| 4D6a | |||||||||||||||
| 21N00928 | 0-15 | A1 | S | 17.2 | |||||||||||
| 21N00929 | 15-30 | A2 | S | 7.8 | |||||||||||
| 21N00930 | 30-45 | Ab | S | 6.7 | |||||||||||
| 21N00931 | 45-60 | Ab | S | 6.1 | |||||||||||
| 21N00932 | 60-75 | Bw1 | S | 5.6 | |||||||||||
| 21N00933 | 75-90 | Bw1 | S | 4.4 | |||||||||||
| 21N00934 | 90-105 | Bw1 | S | 6.0 | |||||||||||
| 21N00935 | 105-135 | Bw2 | S | 6.2 | |||||||||||
| 21N00936 | 135-165 | Bw2 | S | 8.0 | |||||||||||
| 21N00937 | 165-195 | Bw3 | S | 12.6 | |||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S2020MD031037 | ( Montgomery, Maryland ) | Print Date: Apr 11 2026 1:27PM |
| Sampled As | : | Huntington | Fine-silty, mixed, active, mesic Fluventic Hapludoll | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 21N0208 | |||
| 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 | ||||
| 21N00928 | 0-15 | A1 | HM | 46055 | 5543 | 27856 | 15394 | 3936 | 950 | 2819 | 828 | 274125 | 66 | 5032 | 130 |
| 21N00929 | 15-30 | A2 | HM | 37324 | 3576 | 23123 | 13142 | 3083 | 714 | 2632 | 503 | 275868 | 56 | 4718 | 141 |
| 21N00930 | 30-45 | Ab | HM | 36954 | 3267 | 22935 | 13106 | 3027 | 687 | 2563 | 404 | 308499 | 53 | 4661 | 144 |
| 21N00931 | 45-60 | Ab | HM | 42176 | 3162 | 24862 | 13689 | 3351 | 846 | 2355 | 606 | 277765 | 52 | 4123 | 136 |
| 21N00932 | 60-75 | Bw1 | HM | 46920 | 3187 | 27380 | 14562 | 3682 | 1105 | 2468 | 636 | 276200 | 55 | 4371 | 142 |
| 21N00933 | 75-90 | Bw1 | HM | 48425 | 2862 | 28279 | 14797 | 3758 | 944 | 2515 | 445 | 285202 | 56 | 4433 | 143 |
| 21N00934 | 90-105 | Bw1 | HM | 57933 | 2975 | 33132 | 16746 | 4205 | 871 | 2877 | 569 | 273893 | 61 | 4975 | 148 |
| 21N00935 | 105-135 | Bw2 | HM | 48146 | 2430 | 29728 | 14541 | 3578 | 800 | 2184 | 495 | 223038 | 50 | 4332 | 138 |
| 21N00936 | 135-165 | Bw2 | HM | 51817 | 2430 | 30243 | 15343 | 3811 | 777 | 2354 | 576 | 208602 | 54 | 4591 | 147 |
| 21N00937 | 165-195 | Bw3 | HM | 54144 | 2084 | 31267 | 15732 | 4064 | 836 | 2466 | 723 | 271654 | 56 | 4634 | 142 |