District officials who acknowledged last week that there was "significant" noncompliance with a court-ordered timetable for processing prisoners eligible for parole reported yesterday that there were 13 additional violations, but they said that new procedures should produce major improvements within 30 days.

"All elements of the process have been examined closely . . . and corrective action designed to eliminate instances of noncompliance has been implemented," said Assistant Deputy Corporation Counsel Michael E. Zielinski in a special report to U.S. District Judge William B. Bryant that was filed late yesterday.

The report apparently was filed in response to a strengthened request filed Monday by attorneys for D.C. Jail inmates asking Bryant to hold Mayor Marion Barry in contempt and fine him $50,000 for violating the court-ordered inmate population ceiling at the D.C. Jail.

In papers filed with the court last week, city attorneys argued that a contempt citation against Barry was unnecessary because the D.C. Corrections Department already had instituted new procedures that should prevent future violations or cover-ups.

But Patrick Hickey, one of the inmates' attorneys, said last night that the violations of the parole processing timetable are further evidence of the city's failure to comply with the overall agreement designed to reduce crowding at the jail.

As part of that August agreement, Bryant established an inmate population ceiling of 1,694 and the parole processing timetable. Under the timetable, an inmate's parole must be determined at least 10 days before the inmate is eligible for parole.

According to the city report filed yesterday, Corrections Director James F. Palmer and Parole Board Chairman Walter B. Ridley have established procedures that help the Corrections Department comply with the parole processing timetable.

However, the procedures were put in place after the city acknowledged last week that the parole part of the court agreement had been violated, according to the report. It said Palmer's directive was issued Friday. Ridley's directive was dated yesterday.

Under the new procedures, "progress reports," prepared by the Corrections Department for the Parole Board, will be forwarded to the board "at least 45 days prior to the parole eligibility date to allow sufficient time for processing by the board," the report said.