I shouldn't worry too much Mum!
I'd reckon that the various Borough Councils would have enough on their plate explaining away their poor drainage systems, like for instance, Tunbridge Wells during the floods! And how on earth are they going to source the drainage for all the new developmets we have forced on us in Kent! Hawkhurst is over-run already!
There are far more pressing requirements than the Environment Agency coming after individuals! Just be aware of scaremongering firms! They'll be at it like water filters, double glazing and solar panels in a few years time!
Just for the record, we get ours seen twice a year for a check up, and every two years for an empty out, and the cost is almost the same over the twelve months, as if we were paying the rates!
I even used to service it myself when things went awry, and the occasional rod-through isn't really a problem! The air pump is a great little bit of kit, I rather like servicing it, as it's supposed to go for years non-stop, but now probably tomorrow, it'll get the hump...
Looking through these posts, I'm sorry if I set the hares running, it wasn't meant to make friends here nervous..:0(