York Historic Environment Record

Evaluation trench 10m x 9m to a depth of 4m bgl. A borehole survey was also undertaken and two groundwater monitoring points installed. The evaluation trench revealed a deeply-stratified sequence of archaeological deposits ranging in date from the Roman period to the 21st century. A series of Roman and post-Roman deposits were overlain by a low early medieval bank. This was interpreted as the rear boundary of an Anglo-Scandinavian plot fronting on to Hungate. This sequence was heavily truncated by medieval refuse pits which were in turn overlain by post-medieval horticultural soils and 19th–21st century yards and buildings. Archaeological deposits continued beyond the maximum excavated depth of the trench and waterlogged deposits were found below 2m BGL. The borehole survey provided a baseline deposit model for the site and identified natural boulder clays at depths ranging between 6.80m and 8.90m BGL. Natural geological deposits sloped downwards to the south-west towards the River Foss.