Five sites over the Estate were excavated by backhoe to a depth of at least 2.0 m or refusal.
Sideslopes, Landscape Unit 4, constitute greater than 75% of the site area. The upper slopes and crests, Landscape Unit 3, have similar soil types to Unit 4. The major difference between the two units is that Unit 3 soils tend to be shallower.
Landscape Units 1 & 2, the drainage line and alluvial swampy areas, cover less than 10% of the site area but are significant as they comprise the only major drainage line of the site. Drainage for Unit 1 is much slower relative to Unit 2.
