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JD -6 Mine Environmental Protection Plan 18 <br />major storm events. Any potential chemical loading to surface water will be controlled and minimized by <br />the implementation of BMPs described in the Stormwater Management Plan (Attachment 3 of the EPP). <br />Potential receptors for the groundwater pathway are similarly limited. The inventory of wells and springs <br />(9.4.1) indicates that most of the nearby wells are deep monitoring wells (200 to 600 feet deep) located <br />greater than one mile from the JD -6 Mine, and associated with the Pinon Ridge Mill site project. These <br />nearest wells are located in the Paradox Valley, northwest of the JD -6 site, where the Mesozoic sandstone <br />aquifers are absent. These wells are completed in the Chinle/Moenkopi aquifer, which is well below the <br />Morrison Formation in the stratigraphic section. In contrast, the flow of groundwater below the JD -6 Mine <br />is expected to be southward, in response to the dip of units in the Mesozoic aquifer and the hydrologic <br />control of the Dolores River as the regional discharge. No groundwater wells have been identified in the <br />Mesozoic aquifers on Monogram Mesa downdip of the JD -6 Mine. Based on the hydrologic flow regimes <br />described in Section 9, no potential groundwater receptors are anticipated. <br />4148A.120927 Whetstone Associates • <br />