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<br /> <br />• The effects of spoils material backfilled in the mined out pit and <br />operations in the shop area on the groundwater system, can be readily <br />identified and characterized by the placement of a monitoring well <br />down-dip from each disturbance, penetrating the entire sequence to Seam 5, <br />to quantify any potential effects or impacts over time. <br />A comparison of the effects of the spoils on down-dip quality is readily <br />available due to the current Spring and Seep Monitoring Plan imposed by <br />the Division, therefore, no additional monitoring wells within the spoils <br />are necessary. <br />The down-dip well for the mined area will be drilled in the location of <br />UC-3. The existing UC-3 does not penetrate to the base of Seam 5 and, <br />therefore, is not representative of the composite quality within the <br />entire section or the composite quality mixed from the spoils located <br />up-gradient. The replacement well will be logged as drilled and all zones <br />• that encounter water will be appropriately completed to insure that <br />portion of the composite groundwater yield is included. The down-dip well <br />for the shop area will be drilled at the location of the existing <br />UC-1/LC-1. This well will be completed in the same fashion as the <br />replacement well for UC-3. A location map indicating the proposed well <br />replacement site is included. <br /> <br />Since we have background data from previous years in both the mine area <br />and adjacent area, we see no need for an additional well drilled up-dip <br />from the shop area at the location of UC-2/LC-2. The groundwater system <br />showed an anomaly in depth and gradient to the south due to the effects of <br />proximity to recharge area. (See VTN report in Permit.) Any relative <br />difference in quantity and gradient in the system can be shown through <br />continued measurement of water level for the first water encountered in <br />UC-2. This measurement at UC-2 and measurement of the standing water <br />level in the two wells replacing UC-3 and UC-1/LC-1 will allow calculation <br />by three known points to estimate the potentlometric surface and gradients. <br />3265h/ <br />(3) <br />