The former head of a waste-hauling firm that won a potentially lucrative Baltimore city contract faces up to 35 years in prison following his conviction Saturday for conspiring to bribe the president of Baltimore's City Council.

Douglas T. Murray, the former chief executive of Modern Earthline Companies of Philadelphia, was found guilty of authorizing payment of $10,032 to Walter Orlinsky, who resigned as City Council president last fall after pleading guilty to extortion.

The 37-year old Murray, a businessman from Haddonfield, N.J., will remain free on bail while he appeals the U.S. District Court conviction.

Defense attorney Charles Peruto said that Murray's appeal would be based on "trial irregularities." Baltimore U.S. District Court Judge Joseph Howard scheduled sentencing for June 3.

Jurors deliberated for more than four hours before convicting Murray of one count of conspiracy and six counts of bribery. He was found innocent of mail and wire fraud.

The conviction came one day after Orlinsky was released from the federal prison camp at Allenwood, Pa., where he had served 4 1/2 months of a six-month sentence for extortion.

In pleading guilty Sept. 21 to one count of extortion the 44-year old Democrat admitted receiving $2,532 from Modern Earthline.