The laws are extremly strict as regards the disposal of material such as you are talking about.
The owner is responsible 100% to ensure that they are disposed of correctly.
I seem to think the fines are heavey and that you can go inside.
I know that i have disposed of material and it has cost a lot of money and also the paperwork involved is substancial.
P.S. The problem is when the spoil is removed from the site, if you can dispose of it on site you will not have a problem.
[Edited by John Catlin - 1/8/2004 5:31:09 PM]