More rubbish has been dumped at a Huddersfield beauty spot.
And experts fear the tonnes of stinking waste dropped by flytippers at Flockton could be contaminated by asbestos.
If that is the case, it will have to be removed by specialist contractors before the rest of the rubbish can be removed.
The latest incident comes days after quiet Grange Lane had to be shut down because of flytipping.
A huge mountain of stinking waste was dumped on April 8 in the side road through woodland.
The spot is just 100 yards from the busy Wakefield Road, which runs past the National Coal Mining Museum.
Now the latest mound of rubbish has been dumped on top of the original pile.
It includes sacks of rubbish, an old sofa, carpets and building materials.
Kirklees Council environmental health officers have been to the scene.
They believe the rubbish has been dumped off a tipper lorry which pulled up on to the side road.
The news comes as a study shows the appalling cost of cleaning up flytipped waste in Kirklees and the rest of West Yorkshire.
Figures from DEFRA have revealed there were 29,253 fly-tipping incidents in West Yorkshire last year which cost the five councils a total of £1.7m to clear.
The problem has got so bad in parts of Bradford that the council has installed five secret cameras to try and trap the flytippers in action.
Fly-tipping is on the rise in Kirklees with on average eight incidents every single day, figures show.
Incidents of rubbish dumped illegally and the costs of dealing with it have risen across the country for the second year running.
Kirklees suffered 3,047 incidents last year, up from 2,550 three years ago.
The council has admitted it has only managed three prosecutions for fly-tipping, one last year and two in 2013/14.
Nationwide it is estimated to cost more than £16m per year to clean up fly-tipped rubbish.