Probably bad idea, and definitely 'Need to bid it to responsible parties' question but would there be a way to safely use even separated 'landfill refuse' to build significant parts of the enclosing structure?
That’s almost always going to be cheaper to source from a nearby quarry than municipal sorting centres when you’re talk multiple millions of cubic meters.
That’s almost always going to be cheaper to source from a nearby quarry than municipal sorting centres when you’re talk multiple millions of cubic meters.