R 324.1403 Water supply monitoring and storage.

Rule 1403. (1) If 1 or more fresh water wells are present within 1,320 feet of a proposed large volume water withdrawal, the permittee shall install a monitor well between the water withdrawal well or wells and the nearest fresh water well before beginning the water withdrawal. If more than 1 aquifer is delineated at the site, the monitor well shall be completed in the same aquifer as the water withdrawal well. The permittee shall measure and record the water level in the monitor well daily during water withdrawal and weekly thereafter until the water level stabilizes. The permittee shall report all water level data weekly to the supervisor or authorized representative of the supervisor. (2) Fresh water storage pits and impoundments shall be constructed as approved by the supervisor and shall be in compliance with all of the following minimum requirements: (a) Berms shall be designed and constructed to prevent washouts or failures. (b) Pits shall be constructed with rounded corners and side slopes of not less than 20 degrees measured from the vertical. (c) Pits shall adhere to applicable soil erosion and sedimentation control measures and may require fencing. (3) Fresh water storage pits, impoundments, or tanks shall not remain on-site more than 6 months after final completion of the well or wells for which the storage was designed unless approved by the supervisor or authorized representative of the supervisor.