ASCA was based at other sites apart from Ha Ha Road, including Chetwynd Barracks, Beeston, Notts. It was amalgamated with Land Services Technical Publications Authority (LSTPA) in the 1990s, to become Army Technical Support Agency (ATSA) and subsequently became part of Defence Logistics Organisation (DLO) around the turn of the century. When DLO moved to a new base in Andover, with a large detachment in Abbey Wood, Bristol circa 2002, the old ASCA sites were closed, with many staff, myself included, made redundant.
I apologise for the vagueness regarding dates, but it is a long time ago and my memory was never very good.
Steve.