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Chris, I was wondering if perhaps you had received a response from Paul in relation to your enquiry? Regards Kevin Brown Environmental Scientist Constructive Evaluation Limited Unit 5 (Top Floor) Vinnetrow Business Park Vinnetrow Road Runcton Chichester West Sussex PO20 1QH Tel: 01243 533499 Fax: 01243 531070 Mob: 07515053248 -----Original Message----- From: Contaminated Land Management Discussion List [mailto:[log in to unmask]] On Behalf Of Chris Dainton Sent: 03 August 2009 14:54 To: [log in to unmask] Subject: LQM Rounding of GACs The notes to the GAC tables in the LQM report typically state either: "Values are rounded to two significant figures" or in some cases, "Values are rounded to one or two significant figures" But the values for many of the GACs are quoted to 3 SF. Paul - can you clarify whether the numbers in the tables with 3 SF are to be used as stated or should we round to 2 SF, as it is clear that a lot of the other GACs have been rounded to 2 SF. And how have you been rounding: up, down or closest? And under what circumsatmces is 1 SF to be used. Cheers Chris Dainton