Authorities say they’ve arrested a suburban Chicago man after finding a marijuana growing operation at his home.

The DuPage County sheriff’s office says 42-year-old Stephen Baker was charged with a felony count of possession or production of cannabis plants. Authorities say they discovered more than 400 pot plants in his home in unincorporated Clarendon Hills.

In a news release, the department says the plants were first spotted by a landlord who went to the house to check out a water leak and saw several large green plants with lights shining on them. Baker was booked into DuPage County Jail and released after posting $10,000 bond.

He couldn’t be reached for comment. There’s no telephone listing for Stephen Baker in Clarendon Hills.