| *** Taxonomy Characterization Data *** |
| Pedon ID: S1986MD031005 | ( Montgomery, Maryland ) | Print Date: Jan 29 2025 8:12PM |
| Sampled as : | Purcellville ; Fine-loamy, mixed, mesic Ochreptic Hapludult |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP86MD238 MONTGOMERY COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1986MD031005 Lat: 39° 10' 30.21" north Long: 77° 2' 53.77" west MLRA: 148 | National Soil Survey Center | |
| - | Pedon No. | 86P0897 | Soil Survey Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska 68508-3866 | ||
| Taxonomy Tier 1 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | |||
| Fine | CaCO3 | 1500 | .1-75 | Bulk | Cole | Vol | Resist | ||||||
| Clay | Clay | Clay | kPa | Clay | mm | Den | Whole | % of | Min | ||||
| Depth | <.002 | <.0002 | <.002 | /Clay | Est | Frac | 33 kPa | Soil | Whole | % | |||
| Layer | (cm) | Horz | Prep | (---------% of <2 mm-------) | (-------- % --------) | g cm-3 | cm cm-1 | ||||||
| 3A1a1a | 8D1 | 4A1d | |||||||||||
| 86P05394 | 0-18 | Ap | S | 21.5 | 0.50 | 33 | 1.49 | 0.023 | 17 | ||||
| 86P05395 | 18-43 | Bt1 | S | 24.9 | 0.66 | 32 | 1.45 | 0.018 | 10 | ||||
| 86P05396 | 43-61 | Bt2 | S | 17.1 | 0.62 | 43 | 1.46 | 0.017 | 16 | ||||
| 86P05397 | 61-107 | BC | S | 7.1 | 0.92 | 52 | 1.51 | 0.009 | 16 | ||||
| 86P05398 | 107-163 | C | S | 2.0 | 2.10 | 62 | 1.51 | 0.002 | 11 | ||||
| 86P05399 | 163-163 | Cr | S | 1.4 | 3.00 | 63 | 1.43 | 0.009 | 1 | ||||
| Taxonomy Tier 2 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | |||
| pH | pH | Org | Tot | Al+½ Fe | CO3 as | (--- Base Sat ---) | NZ | ECEC | CEC7 | ECEC | Al | ||||||||
| Depth | H2O | NaF | C | C | Oxal | ODOE | CaCO3 | NH4 | Bases | P Ret | cmol(+) | /Clay | /Clay | Sat | E C | ESP | |||
| Layer | (cm) | Horz | Prep | (------------------------------------------ % --------------------------------------------) | kg -1 | % | dS m-1 | % | |||||||||||
| 4C1a2a | 6A1c | 5C1 | 5C3 | 8D1 | 5D2 | ||||||||||||||
| 86P05394 | 0-18 | Ap | S | 5.9 | 1.11 | 83 | 68 | 0.56 | -- | ||||||||||
| 86P05395 | 18-43 | Bt1 | S | 6.1 | 0.26 | 64 | 61 | 0.56 | -- | ||||||||||
| 86P05396 | 43-61 | Bt2 | S | 5.9 | 0.11 | 66 | 68 | 0.74 | 1 | ||||||||||
| 86P05397 | 61-107 | BC | S | 5.6 | 0.04 | 41 | 63 | 1.42 | 1 | ||||||||||
| 86P05398 | 107-163 | C | S | 5.8 | 0.01 | 88 | 82 | 5.05 | -- | ||||||||||
| 86P05399 | 163-163 | Cr | S | 5.9 | 0.02 | 100* | 90 | 9.00 | 1 | ||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.64 | (NA) | |
| Clay, carbonate free, Weighted Average | 22 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 37 | % wt | |
| Volume, >2mm, Weighted Average | 12 | % vol | |
| Clay, total, Weighted Average | 22 | % wt | |
| LE, Whole Soil, Summed to 1m | 2 | cm/m | |
| Weighted averages based on control section: 18-61 cm | |||