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<br />,.L <br />/c <br /> <br />. <br /> <br />. <br /> <br />,. <br /> <br />" <br /> <br />, <br /> <br />;;/..... <br />.-/r. <br /> <br />ADDITIONAL RECOMMENDATIONS AND CONTINGENCY ACTION <br /> <br />Implementation of the recommended monitoring plan will facilitate the establishment and <br />effectiveness of mitigative measures. To the extent possible the monitoring should be <br />coordinated with similar groundwater withdrawal and water level monitoring situations that <br />may be completed by other entities within the mining district. Coordination of such <br />monitoring would provide data to characterize the overall effect of high capacity well use <br />within the district. <br /> <br />Monitoring of water levels as recommended could be used to preempt adverse affects on <br />the adjacent residential wells. If significant water level changes are observed in the <br />monitoring wells, changes can be made to the pumping program to protect the residential <br />wells. If welllnterference occurs to the degree that water supply wells become dry the <br />immediate action would likely be to curtail pumping until water levels return and the wells <br />become usable again. In the interim all pumping rate and water elevation data should be <br />reviewed. Plans to continue the use of the pumping well at a reduced rate, or under <br />limited hours, should be initiated and the frequency of water level monitoring at the <br />monitoring wells should be increased to monitor the response to the reduced pumping rates. <br />Such changes in pumping rate and monitroring frequency would likely be reviewed by the <br />DNR under its review of the water appropriation permit. Additional monitoring of pumping <br />wells and monitoring wells may be required at that time. <br /> <br />/u/Prj/ENV/64 I 17 /monitor. wp <br />