Last week's tire fire has residents in Watertown concerned.
About 200 community members packed the city's Senior Center last night to ask local, state and federal agencies questions.
The EPA and Wisconsin Department of Public Health say they are bringing in a mobile unit to treat the three million gallons of water in the nearby creek.
The water treatment could take up to two months.
Investigators did not detect any heavy metals in the air.
The owner of the Watertown tire recycling center says he's contracting out a company to analyze the burn site and price the clean up.