2023-12-18_PERMIT FILE - P2023018 (2)

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� �" •1 -�$ inn � ka �+� ,I 4-7 �'Jtxan'� S 4. Item 6, k states that drill holes are expected to penetrate into a single unconfined aquifer. Please provide more information, supported by hydrologic documentation, as to which holes are expected to encounter the unconfined aquifer, at what depth and what measures will be taken to prevent impacts to the prevailing hydrologic balance pursuant to Rule 3.1.6(1). The specific hydrologic conditions existing at each drill site are unknown due to the limited availability of hydrologic data at the site. The limited available hydrologic information suggests the project area is underlain by an unconfined aquifer. All,none,or some of the drill holes may encounter an aquifer,but as the aquifer depth is currently unknown,predictions as to which holes might encounter it cannot be made.The aquifer depth and characteristics will become more apparent as drill holes are completed. The drilling operations will not use any fluids other than air,water, and bentonite-based drilling fluid additives to achieve proper fluid viscosity.Additives products will be selected from the list of Approved Drilling Fluid additives shown on the Colorado Division of Water Resources website. The drilling operations will maintain compliance with applicable Colorado water laws and regulations pertaining to Prospecting Drill Holes. The holes will be properly abandoned following the guidance of section 5.4.2 of the Mineral Rules and Regulations regarding prospecting drill holes. 5. Item 6, a states that three or four of the exploration holes will be converted into Groundwater Monitoring Wells. Please identify which holes are to be converted to Groundwater Monitoring Wells.Also, in accordance with Rule 5.4.4, the necessary permits from the State Engineers Office (Division of Water Resources)must be obtained. Please provide documentation ofpermitting 3