Ampersand Apartments – Whytleafe
Client: Mountford Pigott
Hydrogeo were commissioned at an early stage in the project in order to progress all phases of intrusive site investigation, groundwater monitoring, quantitative controlled waters / human health risk assessments and detailed Remediation Strategy
The Ampersands Apartments development comprises a mixed residential and commercial scheme comprising of 118 apartments and a Primary Care Trust building with associated parking, access roads, and landscaping. The site formerly accommodated the local Whytleafe Town Gas Works dating back to 1873, in addition the north eastern sector was also occupied by a local garage and petrol filling station.
The environmental setting of the site is extremely sensitive being situated inside a groundwater Source Protection Zone (SPZ) Source 1 for a large groundwater abstraction borehole (Kenley Pumping Station) providing drinking water for approximately 10,000 people in the local area. The five groundwater abstraction licenses for the Kenley Pumping Station (Sutton & East Surrey Water PLC) accumulating to a maximum daily abstraction of 122,099m3/day.
Hydrogeo were commissioned at an early stage in the project in order to progress all phases of intrusive site investigation, groundwater monitoring, quantitative controlled waters / human health risk assessments and detailed Remediation Strategy. These works were required in order to satisfy planning conditions assigned to the development, with approvals required prior to enabling and construction works could commence at site. The Hydrogeo team liaised throughout the project with the regulatory authorities including the Local Authority Contaminated Land Team, Environment Agency and Sutton & East Surrey Water PLC.
Following regulatory approval of site investigation, risk assessment and a detailed Remediation Strategy site works commenced. Hydrogeo attended site throughout enabling and construction works phases of redevelopment in order to verify remediation works and advise the client team with regard contaminated land and hydrogeological issues.
The enabling and construction of the development was progressed over a number of years with phased sign off on blocks following completion. Following overall project completion Hydrogeo issued a Remediation Works Verification Report to the local authority for review and approval. The reports and supporting information ensured that all related planning conditions were signed off ensuring that the site could be officially occupied.