Mid-Council Period reports are not required by the DC Council rules (PDF). End-of-CP reports are and too often are not done. The rule about the reports is here:
227. COMMITTEE-ACTIVITY REPORT.
Each committee shall file a committee-activity report not later than 15 days before the end of each Council period that details the committee’s oversight and legislative activities. The format and content of the committee-activity report shall be determined by the Secretary.