There's another hearing Friday in Ramsey County concerning the fate of the shuttered Water Gremlin plant in White Bear Township.
The facility has been closed all week after state investigators discovered high levels of lead poisoning in some of the children of workers at the plant.
The judge on Thursday extended the closure an additional 24 hours.
More than 330 people employed by the facility, and want to return to work
The plant makes lead-based products and earlier this year received a partial shut-down order because an inspection found a cancer-causing chemical was being released.
Officials with Water Gremlin say they're working with state and local officials to improve their workplace.