For wells constructed in Campton Township, the water well contractor is required to adhere to the following to minimize the impact of bypassing the Maquoketa Shale aquitard:
A. Wells screened into the shallow sand and gravel aquifer are not to be screened any more than a few feet into the top of the Maquoketa Shale.
B. Wells that will be open to the Maquoketa Shale and rely primarily on that unit for water are required to extend the casing into the unit sufficiently to prevent water from the overlying sands and gravel aquifers from entering into the well.
C. Wells drilled into the Galena-Platteville and St. Peter units are not allowed to be open to the Maquoketa Shale. Casing for Galena-Platteville or St. Peter wells are required to extend all the way through the Maquoketa Shale formation when drilling a deep well. (ord. 22-356, 10-11-2022)