5.1 PCSR 08-23-1994 - Laserfiche WebLink

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• ADDITIONAL RECOMMENDATIONS AND CONTINGENCY ACTION Implementation of the recommended monitoring plan will facilitate the establishment and effectiveness of mitigative measures. To the extent possible the monitoring should be coordinated with similar groundwater withdrawal and water level monitoring situations that may be completed by other entities within the mining district. Coordination of such monitoring would provide data to characterize the overall effect of high capacity well use within the district. Monitoring of water levels as recommended could be used to preempt adverse affects on the adjacent residential wells. If significant water level changes are observed in the monitoring wells, changes can be made to the pumping program to protect the residential wells. If well interference occurs to the degree that water supply wells become dry the immediate action would likely be to curtail pumping until water levels return and the wells become usable again. In the interim all pumping rate and water elevation data should be reviewed. Plans to continue the use of the pumping well at a reduced rate, or under limited hours, should be initiated and the frequency of water level monitoring at the monitoring wells should be increased to monitor the response to the reduced pumping rates. Such changes in pumping rate and monitroring frequency would likely be reviewed by the DNR under its review of the water appropriation permit. Additional monitoring of pumping • wells and monitoring wells may be required at that time. /u/Prj/ENV/641 17/monitor.wp III