HC Deb 01 November 1976 vol 918 c459W
Mr. Sims

asked the Secretary of State for the Environment what is the amount of time which must elapse before tips containing rubbish in non-biodegradable sacks can be used for building purposes; and what is the amount of time for those containing paper stocks.

Mr. Marks

This will vary according to the types of waste deposited and the disposal methods use but a long wait is usually necessary for the site to become sufficiently stable. The difference between non-biodegradable sacks and paper sacks is not likely to be significant; what is in them is more important. Sites can often be used for recreational and agricultural purposes very soon after completion.