The city shall maintain detailed records regarding its operation of the Shandaken tunnel. Such records shall be maintained at the city field offices at the Schoharie and Ashokan reservoirs and at the office of the city reservoir releases manager. Such records shall at a minimum specify the amounts of water diverted through the Shandaken tunnel, the dates, times and duration of such diversions, the rates of the openings and closings of the Shandaken tunnel, and the amount of water contained in the Schoharie and Ashokan reservoirs at any particular time. Not later than 45 days following the end of any calendar month, the city reservoir releases manager shall provide to the department reservoir releases manager a summary of such detailed records for that calendar month. Such monthly summary shall be in sufficient detail for the department to determine whether the city's operation of the Shandaken tunnel during the preceding month complied with the provisions of this Part. The department shall have the opportunity, after reasonable notice, to inspect the city's detailed records at the office of the city reservoir releases manager or the city field offices at the Schoharie and Ashokan reservoirs.