A $1 billion (€885 million) proposed land-based salmon farming project in the United States is one step closer to becoming reality.

The Maryland Department of the Environment (MDE) has issued a tentative permit to allow Norwegian land-based salmon farming company AquaCon to discharge up to 2.3 million gallons a day of treated “purge” water into Marshyhope Creek, a tributary of the state's Nanticoke River, reported the Southern Maryland Chronicle on Wednesday.

“We have spent more than one year with MDE on the permit terms,” Henrik Tangen, executive chairman and president of AquaCon, told the news site.