Another federal plea deal was announced Monday in a scandal over a water billing class action lawsuit involving the city of Los Angeles, with the former manager of the largest municipal utility provider in the country admitting to a bribery scheme over a $30 million contract that includes destroyed evidence and false statements to the FBI.

New documents detail how ex-Los Angeles Department of Water and Power general manager David H. Wright, 62, worked with New York lawyer Paul Paradis to ensure the LADWP’s Board of Directors approved the contract for Paradis’ company Aventador, including a strategic report in the lawsuit and a deliberate effort to hide Paradis’ identity from board members.