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Pierre Shale that is between 0—4,000 feet thick in the area. It is not expected that groundwater <br /> will be encountered during any phase of mining. <br /> 4. Water Consumption for the Operation and Water Rights <br /> An industrial well is being permitted with the Division of Water Resources for water to be used <br /> in processing as well as dust mitigation. This well will remain during reclamation following the <br /> completion of mining; see the enclosed signed Water Well affidavit. Augmentation water will be <br /> supplied by the Huerfano County Conservation District. Exposed surface groundwater is very <br /> unlikely to be encountered during any phase of mining at the Bradford Mesa Quarry; therefore, a <br /> Substitute Water Supply Plan (SWSP) is not necessary. Because the basalt sill to be mined is dry, <br /> no water losses will occur from the resource during mining. <br /> Dust will be controlled by water. Additional dust mitigation on roadways includes bi-annual or <br /> as needed applications of magnesium chloride. Water will be used as needed to spot eliminate <br /> any problem dust areas and to be used in a spray bar during initial crushing. 40,000—50,000 <br /> gallons is a high and conservative estimate of pumped gallons used on site daily, as needed. <br /> Bradford Mesa Quarry <br /> January 2020 G-5 <br />