Point 1- septic tank inspection is necessary, even out in the countryside. A lot of little crocks of shit adds up to one hell of a lot. Don't forget the health implications of overflow. The inspectors have to be paid (very well I imagine), so either it's done out of general taxation, or the owner pays. If you pay sewage rates the same as drainage connected folks, you have a point for it being free at the time of inspection.

Point 2- the waste at Haulbowline is industrial waste from a steel works. The disposal in that way should have been prevented by inspectors at the time it was created. But back then, the Irish were all cock-a-hoop about how clever they were, Celtic tigers no less, and weren't going to disturb the bright shining picture of the economy, even if the shine was chromium (6) based. Industry was attracted to Ireland because places like the UK enforced regulations (bureaucracy gone mad, they told us), and we lost jobs because of it.

Point 3- the UN human rights charter includes the right to eat. If you have the right to eat, you have the right to shit. If bureaucracy prevents you from using your own facilities, it seems legitimate to use theirs. I suggest a shit-in at local government offices.