BAM Ritchies

Case Study: United Utilities GI Framework

Client: United Utilities

Location: North West England

Date: 2010 onward

BAM Ritchies has ongoing water industry framework ground investigation contracts for United Utilities, Anglian Water and Scottish Water.

The United Utilities work consists of a variety of individual work packages with values ranging from a few thousand pounds to tens of thousands of pounds for water supply and sewerage schemes.

The work scope has included:

  • Cable percussive boreholes to a maximum depth of 40m
  • Terrier boreholes to 5m depth
  • Rotary boreholes to a maximum depth of 40m, including windowless sampling through drift materials and extending by coring.
  • Machine dug and hand dug trial pits
  • In situ testing in trial pits
  • Installation of gas / groundwater standpipes together with return monitoring / sampling visits
  • Excavation by hand to expose buried services
  • Survey in all positions using GPS equipment
  • Special sampling for Geoenvironmental testing
  • Logging of recovered soil samples and rock cores
  • Laboratory testing
  • Factual report production

Additional aspects include work within traffic management, liaison with many stakeholders, public interfacing and providing additional works to meet the requirements of the main civils contractors.