Former South Gate treasurer Albert Robles was convicted Thursday by a federal jury on 30 counts of extorting city contractors for bribes following a two-and-a-half week trial in U.S. District Court in Los Angeles.

The jury found Robles, 40, guilty of 16 counts of mail fraud and five counts of wire fraud, each of which carry a maximum prison sentence of 20 years. He also was found guilty of four counts of money laundering and five counts of bribery, which carry a maximum sentence of 10 years each.

Prosecutors alleged Robles extracted $1.4 million from contractors, who were fraudulently awarded $76 million worth of contracts.

One business owner, George Garrido, received a $48 million trash hauling contract under Robles’ scheme. He also was convicted Thursday on five counts of mail fraud. Robles and Garrido are expected to be sentenced on Oct. 24.

Two other contractors, Edward Expinoza and Michael Klistoff, pleaded guilty earlier to mail fraud charges and are scheduled to be sentenced Oct. 31.

Espinoza, a financial consultant, received more than $2.1 million in work steered to him by Robles, who was paid $1.4 million through a shell corporation created by Espinoza. About $165,000 of those payments went toward a beachfront condominium in Baja, California.

Klistoff was an official at two waste-hauling firms, Klistoff & Sons and All City Services, which paid $30,000 in gifts and campaign contributions to Robles.