Mattresses, furniture and drug paraphernalia are among the items discarded.
Laois County Council is being called on to tackle a serious case of illegal dumping.
Portlaoise Tidy Towns says it's an ongoing problem in the Knockmay area of the town, and a long term solution is needed.
The group's secretary, Vincent Booth, says household waste, mattresses, furniture and drug paraphernalia are just some of the items found in the area.
He says it's only a minority who are dumping but it's a health and safety issue for all local residents:
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