| *** Primary Characterization Data *** |
| Pedon ID: S2020MD031032 | ( Montgomery, Maryland ) | Print Date: Sep 30 2026 9:04AM |
| Sampled as on Jan 13, 2020: | Combs ; Coarse-loamy, mixed, active, mesic Fluventic Hapludoll |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | I2020USMD054 Potomac River Island Project P Index Part 2 | Natural Resources Conservation Service |
| - | Site ID | S2020MD031032 Lat: 39° 1' 14.43" north Long: 77° 14' 17.70" west MLRA: 148 | National Soil Survey Center | |
| - | Pedon No. | 20N0358 | 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 |
| 20N01612 | A | A | 0-15 | S2020MD031032-1 | ||||
| 20N01613 | Bw | Bw | 15-30 | S2020MD031032-2 | ||||
| 20N01614 | Bw | Bw | 30-45 | S2020MD031032-3 | ||||
| 20N01615 | Ab | Ab | 45-60 | S2020MD031032-4 | ||||
| 20N01616 | Ab | Ab | 60-75 | S2020MD031032-5 | ||||
| 20N01617 | Bwb | Bwb | 75-90 | S2020MD031032-6 | ||||
| 20N01618 | Bwb | Bwb | 90-105 | S2020MD031032-7 | ||||
| 20N01619 | C1 | C1 | 105-135 | S2020MD031032-8 | ||||
| 20N01620 | C2 | C2 | 135-165 | S2020MD031032-9 | ||||
| 20N01621 | C2 | C2 | 165-195 | S2020MD031032-10 | ||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 0 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||
| *** Primary Characterization Data *** |
| Pedon ID: S2020MD031032 | ( Montgomery, Maryland ) | Print Date: Sep 30 2026 9:04AM |
| Sampled As | : | Combs | Coarse-loamy, mixed, active, mesic Fluventic Hapludoll | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 20N0358 | |||
| 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 | |||||||||||||||
| 20N01612 | 0-15 | A | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01613 | 15-30 | Bw | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01614 | 30-45 | Bw | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01615 | 45-60 | Ab | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01616 | 60-75 | Ab | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01617 | 75-90 | Bwb | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01618 | 90-105 | Bwb | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01619 | 105-135 | C1 | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01620 | 135-165 | C2 | S | -- | -- | -- | -- | -- | |||||||||||||
| 20N01621 | 165-195 | C2 | 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 | |||||||||||||||||
| 20N01612 | 0-15 | A | S | 1.016 | |||||||||||||
| 20N01613 | 15-30 | Bw | S | 1.015 | |||||||||||||
| 20N01614 | 30-45 | Bw | S | 1.014 | |||||||||||||
| 20N01615 | 45-60 | Ab | S | 1.015 | |||||||||||||
| 20N01616 | 60-75 | Ab | S | 1.014 | |||||||||||||
| 20N01617 | 75-90 | Bwb | S | 1.012 | |||||||||||||
| 20N01618 | 90-105 | Bwb | S | 1.012 | |||||||||||||
| 20N01619 | 105-135 | C1 | S | 1.011 | |||||||||||||
| 20N01620 | 135-165 | C2 | S | 1.011 | |||||||||||||
| 20N01621 | 165-195 | C2 | S | 1.011 | |||||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S2020MD031032 | ( Montgomery, Maryland ) | Print Date: Sep 30 2026 9:04AM |
| Sampled As | : | Combs | Coarse-loamy, mixed, active, mesic Fluventic Hapludoll | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 20N0358 | |||
| 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 | |||||||||||||
| 20N01612 | 0-15 | A | S | 7.1 | 7.0 | |||||||||
| 20N01613 | 15-30 | Bw | S | 6.8 | 7.1 | |||||||||
| 20N01614 | 30-45 | Bw | S | 6.7 | 7.0 | |||||||||
| 20N01615 | 45-60 | Ab | S | 7.2 | 7.1 | |||||||||
| 20N01616 | 60-75 | Ab | S | 7.3 | 7.1 | |||||||||
| 20N01617 | 75-90 | Bwb | S | 7.1 | 7.3 | |||||||||
| 20N01618 | 90-105 | Bwb | S | 6.6 | 7.2 | |||||||||
| 20N01619 | 105-135 | C1 | S | 6.5 | 7.2 | |||||||||
| 20N01620 | 135-165 | C2 | S | 7.2 | 7.2 | |||||||||
| 20N01621 | 165-195 | C2 | S | 7.0 | 7.2 | |||||||||
| 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 | |||||||||||||||
| 20N01612 | 0-15 | A | S | 23.3 | |||||||||||
| 20N01613 | 15-30 | Bw | S | 14.6 | |||||||||||
| 20N01614 | 30-45 | Bw | S | 15.5 | |||||||||||
| 20N01615 | 45-60 | Ab | S | 16.8 | |||||||||||
| 20N01616 | 60-75 | Ab | S | 7.7 | |||||||||||
| 20N01617 | 75-90 | Bwb | S | 11.9 | |||||||||||
| 20N01618 | 90-105 | Bwb | S | 9.7 | |||||||||||
| 20N01619 | 105-135 | C1 | S | 15.8 | |||||||||||
| 20N01620 | 135-165 | C2 | S | 8.4 | |||||||||||
| 20N01621 | 165-195 | C2 | S | 8.3 | |||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S2020MD031032 | ( Montgomery, Maryland ) | Print Date: Sep 30 2026 9:04AM |
| Sampled As | : | Combs | Coarse-loamy, mixed, active, mesic Fluventic Hapludoll | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 20N0358 | |||
| Trace Elements Tier 1 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | |||
| Depth | Ag | As | Ba | Be | Cd | Co | Cr | Cu | Mn | Mo | Hg | ||||
| Layer | (cm) | Horz | Prep | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | ug/kg | |
| 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | |||||
| 20N01612 | 0-15 | A | HM | 0.11 | 5.18 | 134.76 | 0.94 | 0.28 | 18.98 | 27.80 | 24.33 | 938.92 | 0.77 | 78 | |
| 20N01613 | 15-30 | Bw | HM | 0.18 | 5.82 | 149.81 | 1.06 | 0.28 | 21.40 | 37.66 | 27.89 | 1008.62 | 0.77 | 96 | |
| 20N01614 | 30-45 | Bw | HM | 0.21 | 6.17 | 151.16 | 1.12 | 0.37 | 23.76 | 46.79 | 34.26 | 966.72 | 0.83 | 128 | |
| 20N01615 | 45-60 | Ab | HM | 0.24 | 7.60 | 141.46 | 1.11 | 0.38 | 22.64 | 39.93 | 32.59 | 956.81 | 0.87 | 193 | |
| 20N01616 | 60-75 | Ab | HM | 0.18 | 7.25 | 166.20 | 1.19 | 0.45 | 24.41 | 36.98 | 35.56 | 992.65 | 0.92 | 237 | |
| 20N01617 | 75-90 | Bwb | HM | 0.11 | 5.49 | 141.38 | 1.02 | 0.27 | 20.54 | 33.53 | 29.27 | 758.45 | 0.64 | 95 | |
| 20N01618 | 90-105 | Bwb | HM | 0.10 | 5.85 | 153.40 | 1.09 | 0.21 | 21.11 | 32.72 | 24.89 | 893.02 | 0.67 | 63 | |
| 20N01619 | 105-135 | C1 | HM | 0.08 | 5.07 | 133.79 | 1.01 | 0.21 | 20.53 | 29.53 | 23.21 | 945.88 | 0.65 | 57 | |
| 20N01620 | 135-165 | C2 | HM | 0.07 | 4.80 | 129.00 | 0.97 | 0.18 | 20.35 | 27.54 | 22.88 | 915.53 | 0.68 | 40 | |
| 20N01621 | 165-195 | C2 | HM | 0.08 | 4.40 | 128.20 | 0.93 | 0.14 | 17.85 | 28.67 | 21.20 | 755.83 | 0.62 | 36 | |
| Trace Elements Tier 2 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | |||
| Depth | Ni | P | Pb | Sb | Se | Sn | Sr | Tl | V | W | Zn | |||
| Layer | (cm) | Horz | Prep | mg/kg | mg/kg | mg/kg | mg/kg | ug/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg | mg/kg |
| 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | 4H1a | |||||
| 20N01612 | 0-15 | A | HM | 30.43 | 522.86 | 20.46 | 0.23 | 662.89 | 1.47 | 28.49 | 37.45 | 0.02 | 106.50 | |
| 20N01613 | 15-30 | Bw | HM | 37.06 | 504.83 | 24.69 | 0.22 | 727.05 | 1.95 | 31.06 | 48.13 | 0.02 | 114.51 | |
| 20N01614 | 30-45 | Bw | HM | 46.03 | 501.09 | 31.38 | 0.24 | 741.29 | 2.12 | 30.92 | 53.35 | 0.02 | 137.34 | |
| 20N01615 | 45-60 | Ab | HM | 37.82 | 500.65 | 31.17 | 0.26 | 726.90 | 2.40 | 28.37 | 43.74 | 0.02 | 165.11 | |
| 20N01616 | 60-75 | Ab | HM | 39.37 | 463.11 | 32.31 | 0.31 | 654.32 | 2.65 | 34.00 | 49.15 | 0.02 | 218.94 | |
| 20N01617 | 75-90 | Bwb | HM | 31.08 | 414.45 | 20.52 | 0.21 | 376.03 | 1.73 | 32.45 | 50.44 | 0.01 | 117.73 | |
| 20N01618 | 90-105 | Bwb | HM | 31.13 | 396.17 | 18.98 | 0.20 | 340.19 | 1.67 | 32.34 | 50.34 | 0.01 | 97.73 | |
| 20N01619 | 105-135 | C1 | HM | 28.39 | 406.26 | 17.46 | 0.16 | 320.15 | 1.29 | 26.43 | 45.56 | 0.01 | 87.36 | |
| 20N01620 | 135-165 | C2 | HM | 27.13 | 378.10 | 14.86 | 0.14 | 327.94 | 0.95 | 24.28 | 43.45 | 0.02 | 80.97 | |
| 20N01621 | 165-195 | C2 | HM | 25.38 | 355.76 | 14.13 | 0.14 | 352.77 | 0.83 | 28.72 | 44.80 | 0.02 | 72.86 | |
| *** Primary Characterization Data *** |
| Pedon ID: S2020MD031032 | ( Montgomery, Maryland ) | Print Date: Sep 30 2026 9:04AM |
| Sampled As | : | Combs | Coarse-loamy, mixed, active, mesic Fluventic Hapludoll | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 20N0358 | |||
| 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 | ||||
| 20N01612 | 0-15 | A | HM | 60661 | 7688 | 36193 | 17052 | 5729 | 1121 | 5136 | 670 | 275658 | 89 | 5965 | 149 |
| 20N01613 | 15-30 | Bw | HM | 63958 | 6747 | 41375 | 17552 | 6390 | 1192 | 5018 | 707 | 305341 | 86 | 6288 | 137 |
| 20N01614 | 30-45 | Bw | HM | 70704 | 5995 | 43870 | 19509 | 7130 | 1171 | 4687 | 714 | 244970 | 83 | 6644 | 157 |
| 20N01615 | 45-60 | Ab | HM | 72409 | 5951 | 41716 | 19258 | 6438 | 1161 | 5013 | 655 | 240621 | 95 | 6304 | 151 |
| 20N01616 | 60-75 | Ab | HM | 70980 | 6222 | 42585 | 19545 | 6613 | 1098 | 5126 | 596 | 304173 | 96 | 6464 | 145 |
| 20N01617 | 75-90 | Bwb | HM | 66960 | 6899 | 42966 | 19078 | 6553 | 1035 | 6264 | 547 | 250152 | 96 | 7059 | 151 |
| 20N01618 | 90-105 | Bwb | HM | 64208 | 5701 | 39301 | 18606 | 6023 | 1048 | 5571 | 534 | 294372 | 86 | 6595 | 139 |
| 20N01619 | 105-135 | C1 | HM | 63878 | 6372 | 39299 | 19329 | 6031 | 1092 | 5795 | 494 | 318156 | 90 | 6639 | 132 |
| 20N01620 | 135-165 | C2 | HM | 61366 | 5474 | 37433 | 18841 | 5925 | 989 | 5671 | 444 | 231976 | 82 | 6751 | 146 |
| 20N01621 | 165-195 | C2 | HM | 60611 | 5892 | 37426 | 17724 | 5679 | 989 | 5736 | 433 | 263633 | 84 | 6627 | 142 |