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the 1 in 100-year flood level. <br /> Division Second Adequacy Comment <br /> • The text provide in the RM response that explains floodplain management at the <br /> site must be added to Exhibit G. <br /> • As noted above, Annual Reports should not to be used to make changes to the <br /> mining and reclamation plans, including the locations of structures. Those changes <br /> must be made with technical revisions and amendments. <br /> • Please explain the relevance of the Headwaters Corporation report included in <br /> the original submittal. <br /> Raptor Materials Second Adequacy Response <br /> Raptor has revised Exhibit G as follows: <br /> • Raptor's First adequacy response that explains floodplain management at the <br /> site has been added to Exhibit G (page 3, Footnote 6). <br /> • Acknowledged. <br /> • The relevance of the Headwaters Corporation report included in the original <br /> submittal is discussed (page 4, Footnote 7). <br /> 46) To ensure that the Two Rivers project minimizes impacts to the hydrologic <br /> balance of the rivers, the application needs to include a water quality monitoring <br /> plan, specifically for the alluvium. [see Seeti-oa 20 - 9xhibit r in Adequaey <br /> RAT The groundwater monitoring plan should be developed in accordance <br /> with Rule 3.1.7(7)(b) and should include a Quality Assurance Project Plan (QAPP) <br /> for the collection of groundwater samples. The plan should provide mitigation steps <br /> if there is an exceedance at a groundwater or surface water monitoring location. <br /> Potential impacts to quality and/or quantity the nearby domestic wells should also <br /> be addressed. A copy of the Division's Groundwater Monitoring and Protection <br /> Technical Bulletin has been included as an enclosure to this letter for your <br /> reference. <br /> Raptor Materials First Adequacy Response <br /> This was an oversight. Please refer to AWES Report, #2022-RM-P124 dated <br /> August 31, 2022, now appended to the Application as an addendum to Exhibit G. <br /> Division Second Adequacy Comment <br /> 491Page <br /> Correspondence to the Colorado Office of Mined Land Reclamation—Reply to Rob Zuber,EPS—Adequacy Letters of 24 June and 5 <br /> August 2022;in the mattcr of the Two Rivers Sand,Gravel and Reservoir Project—M2022-013. <br />