A Clinton Township drain that turned bright green over the weekend is not toxic.

The mystery behind a Macomb County creek turning neon green has been solved.

MACOMB COUNTY, Mich. Just a day after federal authorities announced charges against former Macomb County Commissioner of Public Works Anthony Marrocco, the other key figure in the Macomb County corruption case pleaded guilty. READ: Former Macomb County Commissioner of Public Works indicted for extortionDino Bucci, who was formerly a county trustee and then became a deputy to Marrocco in the public works department, appeared before a judge via video on Thursday. He admitted to pressuring developers and contractors to spend hundreds of thousands of dollars on tickets to Marroccos fundraisers. READ: Macomb Township Trustee Dino Bucci arraigned on 18 counts of corruptionBucci, 60, is facing 9-10 years in federal prison. View the indictment from 2017 below:READ: Metro Detroit trash magnate Chuck Rizzo pleads guilty to bribery, could face 10 years in prison