The evaluation was conducted over a period of six days, from the 29th of June to the 3rd of July, and again on the 7th of July 2020. It was carried out in accordance with the agreed WSI (Appendix B) and therefore conformed to all industry guidelines and standards of best practice at all times (i.e. CIfA: 2019: 2020a:2020b: Historic England 1990: 2015a:2015b; NPPF 2019). The position of all trenches, agreed in consultation with he Andy Lines of SYAS, were established on-site using a digital Global Positioning System (dGPS), accurate to within +/- 0.02m. The trench locations were then scanned using a Cable Avoidance Tool and Signal Generator (CAT and Genny), by an appropriately experienced and trained member of staff. No services were detected, and it was not necessary to adjust or relocate any trench. Only once trenches had been marked out and deemed clear of services were excavations begun. The trenching revealed no archaeological features of significance of any period, and no conclusive material evidence that the upstanding wall had a medieval origin, beyond its relative position and orientation.
Adam Tinsley (Fri,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: