(a) Any water use authorized by a water withdrawal permit shall be subject to such requirements for monitoring the intake, waters of the state or other source as may be required by the department to determine compliance with permit limitations and water quality standards that are or may be affected by the water withdrawal. These requirements include the installation, use, and maintenance of monitoring equipment or methods, and if imposed shall be included as provisions of the water withdrawal permit.

(b) All water withdrawal sources shall be equipped with totalizing flow meters, which shall be properly calibrated within the year prior to permit application and at least once every five years thereafter. If the water withdrawal is used solely for the purpose of fire protection or if the department determines that the installation of a totalizing flow meter is impractical or unnecessary, the permittee may estimate water withdrawal quantities using an accurate method approved by the department.

(c) The water withdrawal rate for any water use authorized by a water withdrawal permit shall be monitored by the permittee.

(d) Each parameter required to be monitored pursuant to this subpart shall be monitored at intervals to be determined by the department as sufficiently frequent to yield data that characterizes the nature of the monitored flow or water levels. Variable water withdrawal rates may require monitoring at more frequent intervals than relatively constant withdrawal rates.

(e) For any public water supply system subject to this Part and constructed or placed in operation after April 1, 2013, water meters shall be installed for all service connections. For public water supply systems operating prior to April 1, 2013, water meters may be required to be installed where the department determines it is necessary to protect the environment, public health, safety and welfare and to ensure the proper management of the waters of the State.

(f) Any groundwater well installed after April 1, 2013 shall be equipped with apparatus for measuring and recording water levels and the apparatus shall be properly calibrated at least once every five years thereafter. Any surface water impoundment installed after April 1, 2013 shall be equipped with apparatus to measure water levels and corresponding storage volumes.

(g) For any water withdrawal system, the permittee shall monitor, and maintain in good order all records pertaining to, the permittee's performance in implementing water conservation and efficient use goals and objectives.