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confining shale layers, water from this well should not be affected by <br />mining and, therefore, reflects the natural characteristics of the <br />aquifer. <br />Ground Water Points of Compliance(GWPOC <br />A GWPOC have been established in the Dry Creek alluvium for the Seneca <br />II -W Mine. Appendix 15 -3B of the Seneca II -W PAP provides the details. <br />The ground water standards for Dry Creek Alluvial Well DCAL -02 are <br />provided in this AHR on Table 7. One exceedance of these standards <br />occurred this year. The ambient -based standard for iron (8.06 mg /1) was <br />exceeded twice with values of 9.47 mg /l and 9.87 mg /1. However, see the <br />discussion of iron in the previous section. This well displays an <br />increasing TDS trend, with the peak occurring in May 2009. All values <br />are less than 1700 mg /1. <br />Ground Water Quality Summary. Increasing TDS trends were observed at <br />six wells downgradient of mining. Eight downgradient wells exhibit <br />stable or decreasing TDS trends. The GWPOC well for the Dry Creek <br />Alluvium, DCAL -02, did not exceed the TDS GWPOC standard, 3195 mg /l, but <br />did exceed the ambient -based iron standard. <br />In the Probable Hydrological Consequences (PHC, Tab 17) section of the <br />Seneca II -W Mine PAP, predictions were made as to the expected TDS <br />increases to be observed at various monitoring wells. The following <br />table outlines these predictions along with this year's observed average <br />values (annual average for bedrock wells, May - September average for <br />alluvial wells). <br />