Many thanks to all those who have responded to my query below – very helpful.

Graham Lee



From: Issues related to Historic Environment Records [mailto:[log in to unmask]] On Behalf Of Graham Lee
Sent: 07 June 2016 13:42
To: [log in to unmask]
Subject: % Sampling Strategies for site evaluation


Dear All – I have a question related to minimum acceptable percentage trenching sample to evaluate a greenfield site. The figure of 5% was used a lot in the past but is such a small sample still generally considered to be usefully valid? Can’t find anything in the CIfA or ALGAO libraries to update me so would be grateful for any help and useful (on-line) references.

Many thanks


Graham Lee

Senior Archaeological Conservation Officer


Please note that my usual working days are Tuesday to Friday.


North York Moors National Park Authority

The Old Vicarage

Bondgate, Helmsley,

York YO62 5BP.


Tel: 01439 772700


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