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Rifle Gravel Pit#1 March 2021 <br /> k <br /> Q Dewetr' •rd%V*k A Jr V Our,nqgStage 1 M,n,n4 <br /> f%timatod Drawdawn of Groundwater l@vwl%Following 1 Year of Continuous flewator9nt 3 wells a1]efs/vwll <br /> Figure 11. Estimated Drawdown of Groundwater Levels Following 1 year of Continuous <br /> Dewatering (estimated 3 wells) <br /> 5.2.2.4 Explosives <br /> Explosives will not be used during mining or reclamation of the property. <br /> 5.2.3 Mining Extraction (Phase 3—in 2 Stages) <br /> Initial mining extraction operations will take place in 2 extraction stages and include the <br /> areas east of the delineated wetlands. Fencing will be installed at least 10-feet away from <br /> the tailwater channel and wetlands to prevent disturbance of these resources. <br /> Stage 1 of the mining extraction operation will start in the southeastern quadrant of the site, <br /> depicted in the Drawings in Attachment A. At this location, the crusher will be placed at <br /> existing grade as excavation proceeds down to the lowest elevation of the gravel. When <br /> enough material has been excavated in Stage 1, the crusher will be moved to the mining pit <br /> floor. Stage 2 will take place in the northeastern quadrant of the property. <br /> Scott will also monitor the response of the delineated wetlands on the property over the <br /> course of Phase 3 to determine if the wetlands are supported entirely by agricultural water <br /> (i.e. non-jurisdictional). If the wetlands are determined to be non-jurisdictional, Scott intends <br /> 20 <br />