The Pacific-10 Conference was reduced to Pac-5 today for purposes of the 1980 conference football championship.

Presidents and chacellors of the conference, imposing penalties for various violations of rules and standards, ruled that the Universtiy of Southern California, UCLA, Oregon, Oregon State and Arizona State are ineligible for the league title and any postseason games, including the Rose Bowl.

That leaves Stanford, California, Washington, Washington State and Arizona to compete for the right to represent the Pac-10 against the Big Ten in the Rose Bowl in Pasadena, Calif., on New Year's Day. All 1980 games will count toward the championship.

USC, 11-1 last year, was the conference champion and ranked No. 2 nationally. It was ranked No. 2 in Playboy magazine's recent poll for 1980, and has been the most frequent Pac-10 representative at the Rose Bowl.

The action is based on recommendations from a Pac-10 investigation begun last October. A terse report issued at the annula meeting here said that the penalties were for "violations of conference rules and standards in the areas of unearned credits, falsified transcripts and the unwarranted intrusion of athletic department interests into the academic processes of the respective universities."

a spokesman said the third violation applied only to USC and was based on allegations that athletes received unearned credits for classes at other schools.

The presidents and chancellors, acting on the recommendations of athletic directors and faculty representatives who met last week in San Diego, also ruled:

All football games played and won by UCLA in 1977, Oregon State in 1977 and 1979 and Oregon in 1977, 1978 and 1979 will be forfeited.

The USC track and field team will be ineligible for the conference championship in 1981 and will not be permitted to praticipate in the 1981 Pac-10 or NCAA track and field championships. In addition, all dual meet and conference championship meet results for the 1978 season will be adjusted to eleminate points won by ineligible athletes, depriving USC of its 1978 Pac-10 track and field title.

The University of Oregon wil be limited to three fewer initial grants-in-aid for football and the team will be placed on probation for two years.

Oregon's team scores and won-lost records in swimming will be adjusted for any meets in 1980 in which ineligible athletes participated.

Dr. Glenn Terrell of Washington State, chairman of the presidents and chancellors, termed the penalties "pretty severe, pretty jolting." The NCAA could impose additional penalties.

The sanctions, which do not affect television revenue from broadcasts of games, are for violations of the member schools' academic integrity. They do not deal with other so-called extra-benefit violations recently brought to light. Those will be dealt with additonally,but probably by other governing bodies. Wiles Hallock, Pac-10 executive director, said that there were still investigations under way, notably by the NCAA and the Los Angeles County District Attorney's office.

Hallock said today's penalties do not deal "with the culpability of individuals who might have been involved in the machinations. We recognize, however, that it must still be dealt with."

Also to be dealt with are the ineligible student athletes in the Pac-10. They were identified during the Pac-10's investigation but their names will not be released for some time. Mike Slive, assistant executive director who was in charge of the conference's investigation, said, "We have made rulings on individuals.

"The council is the final arbiter of ineligibility and it has levied certain sanctions. However, we must give the schools the opportunity to respond. We won't comment on individual sanctions."

Silve said that only a small number were involved, "not a dozen or two dozen."

Although the Pac-10 did not make available the findings from its 10-month investigation, it is believed that the penalties derive from a series of infractions involving the use of extension courses and forged or falsified transcripts.

The first of the scandals to rock the Pac-10 was the discovery last October that football players from Arizona State received credit for extension courses they did not attend. An investigation revealed that athletes from Orgeon, Oregon State and several other schools not in the Pac-10 received credit from an extension course offered in Gardena, Calif., by Rocky Mountain College.

The sanctions against the two Los Angeles schools, USC and UCLA, followed disclosures by the Los Angeles Times about academic irregularities involving athletes.

In February, it was disclosed that two UCLA varsity football players and one walk-on had forged transcripts from Los Angeles Valley College, a two-year school, in their files at the university.

Later that month, the USC Daily Trojan and the Los Angeles Times disclosed that 34 athletes, mostly members of the Trojans' 1980 Rose Bowl champion- [TEXT OMITTED FROM SOURCE] that they did not attend.

In March, it was disclosed that USC track star Billy Mullins picked up 28 academic unis from four widely spread Los Angeles area community colleges during the summer of 1977, an accomplishment that USC's athletic representative termed impossible.

In June, the Los Angeles Times disclosed that 10 UCLA athletes, including players now in the National Football League, and three USC track and field stars obtained credits from California Luthern College for 1977 summer extension classes that most did not attend.

The scandals inspired the formation of a compliance committee, which included Sam Jankovich, Washington State athletic director, Doug Hobbs, UCLA faculty representative,and John Davis, Oregon State faculty representative. The committee formulated the sanctions and then presented them to the athletic directors and the faculty representatives last week. They were approved and handed over to the presidents and chancellors.

The university leaders required less than three hours today to unanimously approve the sanctions, with the affected schools' presidents or chancellors abstaining on each vote.

"We feel these actions were necessary to preserve the academic integrity of the conference, our institutions and our athletic programs." Dr. Terrell said, summarizing the feelings of the assembled presidents and chancellors.

Charles Young, UCLA chancellor, said he was dissapointed, but understanding. "I believe the penalties were appropriate," he said. "It's very important that we deal with these infractions when they arise and in appropriate ways."

He called the penalty stiff. "But," he said, "it doesn't carry into the future. It doesn't hurt recruiting,for example. I think it will have minimal impact on our program."

John Hubbard, USC president, was not sure.

"Who knows?" he said. "How can you tell how this will affect us?"

Hubbard, who might have reasonably anticipated seeing USC in the Rose Bowl this year, conceded that he was not enthusiastic about the penalty.

"I argued that, at USC, we were dealing with an attempted intrusion into the academic process. At no time were we demonstated to have ineligible athletes on the field, here were no grades given (in the speech class). Our reaction to attempted corruption, I thought vindicated our academic process. But that argument did not carry the day."

However, Hubbard said he was willingto accept the penalty for the larger good of the conference, as were the othere affected schools.

"The large issue is the credibility of our conference, the credibility of intercollegiate athletes," he said.

John Robinson, USC football coach,said, "We're very disappointed about the decision, but our goal now has to be to make this the best season we can."

Terry Donahue, UCLA coach, said, "The incident for which we are being penalized occurred three years ago. I am embarrassed that academic integrity of UCLA has been subject to question, and I feel very sorry for our players and coaches."

Bill Nicholas, chairman of the football committee of the Tournament of Roses Association which puts on the Rose Bowl game, said, "We don't see the ruling advesely affecting the game even though this (Pasadena) is a USC town. Washington and Stanford look like the front-runners, according to the polls."

A smaller issue is the Pac-10 conference football race, one that conceivably could be won by a sixth-place team with a losing conference record. c

"That's going to take a little fun out of the race, isn't it?" said Donahue.