eteb3
I have added the fenced equipment found 60m west of this note on the S side of the road. Is that 'Haconby Borehole'? Is that also the borehole cited here? 

http://scans.bgs.ac.uk/sobi_scans/boreholes/471654/images/14774216.html

NGR given on page 3 of that doc - would seem to be at Middle Farm itself, not here.