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STRATEGICALLY POSITIONED -TECHNICALLY PREPARED <br />J. ERICH RAUBER,P.E. <br />MAY DAY IDAHO MINE COMPLEX <br />112(d) PERMIT -AMENDMENT <br />EXHIBIT G <br />Water Information <br />6.4.7 <br />6.4.7(1), 6.4.21(8); Statement of Effect on Surface Water and/or Groundwater <br />Sunrise Mining, LLC conducted baseline monitoring activities pursuit to Section 3.1.6, <br />3.1.7 and 6.4 7 (See Attachment G-1). Procedures described within the Environmental <br />Protection Plan (EPP) (Exhibit U — Designated Mining Operation Environmental <br />Protection Plan) and permit commitments summarized in Exhibit M (Other Permits and <br />Licenses) will minimize potential impacts to surface and ground water. <br />A summary of the hydrogeologic balance for the project area is presented on Table G-1. <br />The section includes a discussion of site water resources including surface and <br />groundwater quality characteristics. <br />The Operator has characterized water quality utilizing existing sampling points and has <br />adequately characterized the site geology for baseline purposes using historical data. Site <br />characterization, including surface and groundwater monitoring will continue during <br />mining and reclamation to provide information to determine and report if the <br />environmental baseline condition has change. The four inch production and <br />monitoring wells will be plugged and abandoned in accordance with Division of <br />Water Resources (DWR). Four DWR permitted groundwater monitoring wells were <br />drilled in 2012. Well completion data summary is presented on Table G-2. Pumps <br />were installed in May Day No. 1 and No. 2 wells and the Idaho and La Plata River <br />alluvial wells were bailed in order to obtain water quality samples and to support in the <br />determination of the depth to ground water, flow direction and aquifer flow velocity <br />(Section 3.1.7(b)(i)). <br />The general flow direction coincides with the topography and stratigraphic dip. The <br />estimated flow rate is less than 10-5 cm/sec. (Rule 6.4.21(8). A monitoring well is located <br />near the historic Idaho Mill building; adjacent to May Day No. 1 and No. 2 mine portal, <br />and another one located is completed in the LaPlata alluvium. The well locations that <br />Sunrise Mining, LLC <br />112(4) Permit — M1 981-185 AM -02 <br />3 <br />Revised September30, 2017 <br />