SACRAMENTO, Jan. 8 – Manson cultist Sandra Good, 31, found herself facing a new federal grand jury indictment today charging her with four additional counts of using public communications to make violent threats.

Miss Good, 31, already in jail under $20,000 bail on charges of conspiring to mail death threats, was accused in the grand jury indictment returned yesterday of making threats in telephone conversations with three radio stations and a newspaper in cities in the U.S. and Canada.

The indictment alleges Miss Good made the threats in calls Sept. 10, 11 and 19 with the Detroit Free Press and radio stations in New Orleans, La.. Altoona, Pa., and to a radio station in Hamilton, Ontario, Canada, on Oct. 3.

Assistant U.S. Attorney Bruce Babcock said the threats were made during interviews and that they were similar to those contained in the alleged threatening letters.

“She threatened named business executives with imminent death at the hands of an International Peoples Court of Retribution if they didn’t stop doing what they are doing to the environment,” Babcock said.

In each case, Babcock added, the telephone calls were initiated by news reporters.

The indictment did not specify the nature of the calls nor the persons for whom the alleged threats were intended. The only allegations were that the threats were “intended to injure the person of another… ”

In an earlier indictment, Miss Good and a companion, Susan “Heather” Murphy, 33, were charged with conspiring with Miss Good’s roommate, Lynette Fromme, to mail 171 threatening letters.

That indictment also did not specify for whom the letters were intended, but Miss Good later said she had been waiting to be arrested since Sept. 5, the day Miss Fromme was taken into custody for attempting to kill President Ford in Capitol Park, Miss Fromme was convicted of the charge and was sentenced to life in prison.

At the time, Miss Good told reporters that the “International People’s Court of Retribution” had drawn up a list of 3,000 names of persons marked for death in a war against pollution.

Most of the targets identified by Miss Good were corporate executives or government officials, some of them residing in Sacramento.

Yesterday’s indictment names Miss Murphy only in the first count that realleges the conspiracy to mail the 171 threatening letters. Miss Good, alone, is named in the remaining four counts concerning the telephone calls to the radio stations and the newspaper. U.S. District Court Judge Thomas J. MacBride set bail for Miss Good at $100,000 on the new indictment. But he let stand the $15,000 appearance bond signed by Miss Murphy when she was released yesterday from the Sacramento County jail.

Both women are to appear Friday before MacBride to whom their case has been assigned. Another federal judge, Philip C. Wilkins, previously had reduced Miss Good’s bail from $50,000 to $20,000 on the original indictment and ordered Miss Murphy free on the appearance bond.

Babcock explained that the new charges against Miss Good were not filed when the first indictment was returned because “the investigation of the new charges was not complete.

“We wanted to get the indictment on file when it was ready,” Babcock said, “so the new counts were added later.”