Devon landfill taxes up £9m in 10 years
Councils in Devon paid penalties of more than £15m last year for throwing waste into landfill sites.
The figure has soared by £9m over the last decade - even though the amount of rubbish being dumped has reduced.
Devon County Council and Plymouth and Torbay's unitary authorities, paid about £15.2m in landfill tax for 272,000 tonnes, a rate of £64 per tonne.
The EU brought in the taxes to reduce the amount of rubbish being dumped.
The UK has targets to reduce the amount of waste sent to landfill to 50% of 1995 levels by 2013, and 35% by 2020.
Devon County Council said the landfill tax had led to reductions in the amount of waste sent to landfill, and had helped its recycling rate reach its current 55%.
But it added it wanted to see more transparency about how the money raised through the tax was used.