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Figure 1). The location of each of these parcels is shown on Figure 2. The northern portion of the mine <br /> is owned by the City of Lakewood, and General Shale has the right to mine that land. <br /> The mine has been in operation since July 1, 1939 although the configuration of the mine has changed <br /> several times over the years. It is operated under a permit(Permit 112) issued by the State of Colorado <br /> Mined Reclamation Board (Environment 1981), now a part of the Minerals Regulatory Program, Division <br /> of Reclamation Mining and Safety(DRMS) in the Colorado Department of Natural Resources(DNR 2017). <br /> The mine is currently operated by General Shale, Inc. headquartered in Johnson, City Tennessee. Local <br /> offices are at the address below: <br /> General Shale, Inc. <br /> 1845 W. Dartmouth Ave. <br /> Denver, CO. 80110 <br /> (303) 783-3058 <br /> www.generalshale.com <br /> Current operating plans call for a portion of the mine to be used for mine storage(storage of raw <br /> inventory)and for stockpile storage (stockpile of overburden removed to reach the clay assets). Figure 3 <br /> illustrates where these areas are currently envisioned to be located. The mine will be operating for <br /> several years so this envisioning is subject to change. <br /> Stormwater <br /> Since the early 1990's stormwater originating above the mine has been channelized to divert upgradient <br /> run-off around the mine and into the drainage course it now feeds to; the first unnamed drainage <br /> course to the east of the original channel (McGraw 2017). As stated earlier this leaves the mine <br /> property at the SE corner of the mine. For the purposes of this report this channel is called the exterior <br /> drainage channel. The redesigned channel is called the outer ditch. <br /> There is also an interior channel that collects run-off from mine operations and routes this interior <br /> runoff to a sedimentation pond located in the SW corner of the mine property. This internal channel, as <br /> this report is calling it, is tucked in behind and to the west of the exterior channel for a good portion of <br /> the exterior channel's run along the exterior(eastern) side of mine operations. Here solids are settled <br /> out and water is then discharged to the historic drainage arroyo. There is also a spillway associated with <br /> the sedimentation pond with overflow also being discharged to the historic drainage arroyo. <br /> 2 07/30/2017 <br />