Production area monitoring well location and spacing requirements

Production area monitoring wells may be located no more than three hundred feet [91.44 meters] from the production area and with spacing no greater than four hundred feet [121.92 meters] between monitoring wells. Alternative monitoring well locations and spacing may be considered if the operator demonstrates that the proposal will adequately provide monitoring coverage to detect excursions in a timely manner. The department may require closer well spacing in the down gradient ground water flow direction from the production zone.