Westmeath County Council is asking the public to get in touch with any information they might have.
A "particularly bad" incident of dumping at a midlands lake is under investigation.
Households items, including a large number of soiled nappies, were littered at Sailor’s Garden along Lough Sheelin earlier this month.
Westmeath County Council says the rubbish caused risk to the nearby wildlife and the general public.
It also says the clean-up will be costly, and will divert funds from other essential services provided by the local authority.
Staff went through the litter by hand in a bid to find those responsible, which it says was deeply unpleasant and a health risk for those involved.
Anyone with any information is being asked to contact the Environment Department at Westmeath County Council.
Laois Gardaí Concerned For Missing Woman
Gardaí Searching For Missing Laois Teenager
Man In His 90s Dies In Laois Crash
Offaly Prize Bonds Holder Wins €500k
BNM Workshop Reunion Taking Place In Offaly Tomorrow
ICTU Reminds Employees Of The Right To Disconnect
Laois Town To Host Famine Commemoration Event
Plans For Billion Euro Data Centre In Westmeath Face New Appeal
Westmeath Councillor Advocates For More Remote Working Hubs
Midlands Homelessness On The Rise
Hundreds Without Power In Westmeath
Westmeath Domestic Abuse Support Service Reports Rise In Cases
Laois TD Highlights GP Gap
Call Made For 'Cost Of Disability Payment' in Budget 2027
Offaly Coffee Shop Listed Among Top 100 In Europe
Man To Stand Trial Over Midlands Tasering Accusation
Another Report Underlines Midlands House Price Inflation
Midlands Braced For Severe Thunderstorms
Sustainable Livestock Village Programme Launched For Tullamore Show
Offaly Woman Named National Carer Of The Year