| Site Code | Context | Trench | Context Description |
| ECB7539 | 1640 | 21 | Unstratified trench 21 |
| ECB7539 | 1641 | 21 | Typical plough layer with heavy clay, slightly lighter in central area. |
| ECB7539 | 1642 | 21 | Bottom of plough layer, yellower than 1641, but remaining hard |
| ECB7539 | 1643 | 21 | Still yellow clay silt, but softer towards bottom at 40+cm with small inclusions of chalk, flint and mortar like material |
| ECB7539 | 1644 | 21 | Chalky clay silt mix, wall area of CBM and chalk. |
| ECB7539 | 1645 | 21 | Chalk uncovered in Trench 21 between Wall and Pit in 2016 |
| ECB7540 | 1646 | 21 | The area of CBM first exposed in 1644. |
| ECB7539 | 1647 | 21 | Cut of Pit |
| ECB7539 | 1648 | 21 | Soft dark soil over harder clay at 90cm |
| ECB7539 | 1649 | 21 | Soft matrix of mixed very dark earth with substantial lighter brown mottles |
| ECB7539 | 1650 | 21 | Dark earth mixed with finely crushed CBM |
| ECB7539 | 1651 | 21 | Same as 1650, dark earth mixed with finely crushed CBM |
| ECB7539 | 1652 | 21 | Orangey brown area of fine debris |
| ECB7540 | 1653 | 21 | Flint wall |
| ECB7540 | 1654 | 21 | Natural (or redistributed) chalk to inside of the wall |