A regulated member of ASET becomes aware of serious deficiencies in a water treatment plant that may have resulted in harmful chemicals contaminating the local water supply. The member provides a report to the supervisor responsible for the treatment plant recommending immediate action to ensure the safety of the drinking water. The supervisor indicates that immediate action will be taken, but after several weeks and regular reminders from the member, nothing has been done to correct the deficiencies. Which of the following actions is the next step the member should take in this situation?