They got the ball rolling on an action plan, for the old GM Plant site in St. Catharines.
The City has sent a letter to the Minister of the Environment, calling for remedial action and a meeting with the Minister.
It has also sent letters to the NPCA, Niagara Region Public Health and local MPPs.
The City is looking for outside legal advice, when it comes to cleaning up the privately-owned property on Ontario Street.
It's going to hire a security company on a month-to-month basis, to keep trespassers out.
Staff have also been fixing up the fence around the site.
Council approved the $125,000 action plan Monday night.

Province Investing Against Invasive Species
Niagara Driver Charged with Drug Impairment
Welland Man Arrested for Child Porn
28 More Doctors Hired in Niagara
Killed Police Officers Honoured by NRP
Niagara Wineries Shuttle Service Possible
Canal Days Vendors Warned of Scams
Niagara Falls Exploring Hub to Help Homeless