• Dr James Taylor – ALS Environmental – OnSite analysis using XRF with instantaneous reference to C4SLs and S4ULs
  • Mike Quint – C4SL Project Team – Human toxicology and the work of the C4SL project team
  • Caroline MacCaffrey – LQM – LQM/CIEH S4ULs; Their derivation and how they relate to C4SLs and SGVs
  • Chris Taylor  – London Borough of Brent – A Local Authority perspective on screening values in Part 2A and planning
  • Gavin Alsopp – NHBC – NHBC update and policy for use of C4SLs and S4SLs

Peterborough, 17 March 2015