GENERAL43736 - Laserfiche WebLink

Home Browse Search

USFd ~A7, Proposed aevalopmant Standard Groundwater Strategy 9ISf02 located, then recharge trenches will be installed and operated along the property edge between the active mining and the potentially impacted wells, Recharge trenches will be constructed on the east side of the property to alleviate impacts to wells east of the property. The operator will temporarily cease dewatering operations, using wet mining techniques in an interim period to the extent that aggregate production continues beneath the groundwater surface. Cessation of dewatering operations shall precede injury to wells in all circumstances where there is a clear trend that would result in damage to wells. Temporary cessation of dewatering operations is also appropriate in other circumstances where preemptive measures and other mitigation techniques have failed to prevent wells from nearing injuriously low levels. Temporary cessation of dewatering shall be continued for at least the length of time necessary to adequately recharge affected wells or implement other corrective measures. 4. Aggregate Industries will mine the three small pits at the north end of the property prior to mining the larger pits to the south. These small northern pits will be mined during the non-irrigation season (i.e. October through April) or recharge trenches will be constructed just north of these northern pits prior to dewatering. These small pits will be available for use as recharge areas, if needed, during dewatering of the larger pits to the south. 5. If the mitigation measures previously listed do not correct the problem, the operator snail cease dewatering and wet mine the property until the source of the impact has been corrected. Responsibility for itiaejion Measures The operator shall not be responsible for mitigation measures In any circumstance wholly caused by an agency external and unrelated to the USR-1347 operation, such as neighboring sand and gravel facilities. Where the USR-1347 operation is deemed to partially contribute to the cause of any draw-down, the operator's responsibilities under this USR development standard shall be assessed equitably. It is the intent of this development standard that the owner of an impacted well call the operator directly and the operator will then implement the mitigation strategy.