The gist of the reply from tarmac northern was

"My company recognises the importance of preserving the Henges and it is not our intention to apply for planning consent to extract sand and gravel from within the actual Henges but only to operate within the land a reasonable distance from the monuments. "

Sophistry.

What constitues a reasonable distance?

"I can assure you that full and open consultation will continue for any
future plans for our operations." This implies the possiblity of plans, contrary to what The County Archaeologist claims.