In reply to GrahamD:
People have climbed there recently without problems, the BMC RAD states:
"The landowner has recently informed the BMC and climbers on site that he does not allow climbing in the quarry. Several unsucessful attempts have been made meet with the landowner, but no response has been forthcoming so far. Anyone climbing the the quarry may asked to leave - if this happens, please do so politely"
For good Sports climbing Ban y Gor is a better bet in any case.