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My reading of BS 1377: Part 9, item 3.3.5 (f) is that it does not explicitly requires the initial penetration to be reported. It requires the initial depth to the bottom of the borehole to be reported and this can be used to work out the initial penetration. However, what really matters is the significance of this penetration, particularly in Alex's case when the lowest SPT 'N' is 25. regards Mahmoud I Alsayed Visit our website at http://www.halcrow.com --------------------------------------------------------------------------- The contents of this email do not give rise to any binding legal obligation upon Halcrow Group Limited unless subsequently confirmed on headed business notepaper sent by fax, letter or as an e-mail attachment. If you receive this email in error, please contact the sender and delete the message. Thank you. ---------------------------------------------------------------------------