An evaluation, in the form of trial trenching, was undertaken on circa 0.5ha of land prior to construction of 21 dwellings. Six randomly placed trenches were excavated over five days, comprising a 3.4% sample of the site. Trench 1 measured 9.6m by 1.94m; Trench 2 measured 10.35m by 1.8m; Trench 3 measured 8.8m by 1.8m; Trench 4 measured 10m by 3.5m; Trench 5 measured 10.6m by 1.8m; and Trench 6 measured 11.5m by 3.5m.{1}