If this site lies within an AONB, how did Grundon obtain planning permission to quarry sand from it in 1998?

Grundon obtained planning consent on their third attempt with a planning condition attached that they must restore the area to full agricultural status by April 2010. This deadline has passed. West Berkshire Planning failed to place an enforcement order on Grundon before they submitted a further planning application on the site in March 2011. Under current planning legislation, even if an enforcement order had been placed, this would have been suspended in light of a subsequent planning application having been submitted pertaining to the same site.