A MAN who left a Mildura family with a clean up bill of almost $1 million after he dumped more than 100,000 used tyres on a share farm risked harm to the community and environment, a court has been told.

Sixty-five-year-old Colin John Thomson hid tyres in scrub and under trees as part of a tyre collection enterprise, and continued to dump tyres around the 3000-hectare property at Merrinee even af