As a general matter (I have no opinion re this case), Deed restrictions (or
Deed Notices a/k/a DERs in New Jersey) can be quite effective if filed in
the correct locations at the county level so that people can actually fund
them. Then, unless and until the state environmental protection agency
ok's the removal of the restriction, each time the property transfers, the
potential pirchasers can see what the situation at the site is,and they can
see the types of property uses which should not occur.