Supporting documents

4 PREVIOUS INTRUSIVE INVESTIGATION
4.1 An intrusive investigation was undertaken by Woolgar Hunter in 2006. This was for a
larger site, however, several exploratory holes were located within the site in question. The
following is a summary of these findings relevant to the site as defined in this report.
Ground Encountered
4.2 Two exploratory holes, BH1 and BH2, were located in the area of the proposed
development, one (BH2) close to the north eastern part of the proposed store footprint.
4.3 In the western part of the site, an area of former reservoir, the ground conditions are
recorded as made ground comprising medium dense sand and gravel with ash to a depth of
1.9m overlying probable sandstone bedrock. In the eastern part, adjacent to the proposed
building, the ground conditions comprise a metre of granular and cohesive made ground
overlying firm sandy gravelly clay with probable sandstone bedrock recorded at 1.9m.
4.4 No groundwater was encountered.
Contamination
4.5 No contaminants were recorded at concentrations considered to pose a risk to a
commercial use at the site.
Japanese Knotweed
4.6 An infestation of Japanese Knotweed was treated by use of herbicides in 2005. An up
to date survey should be carried out to confirm that no re-infestation has occurred.
Ground Gas
4.7 Gas monitoring was undertaken over a month within BH2 and recorded a trace of
combustible gas and carbon dioxide to a maximum concentration of 0.75% v/v. No flow
readings were recorded.
11562 6 Paisley
Aldi Stores Ltd March 2013