2023-02-27_PERMIT FILE - M2023006

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8) Will groundwater be encountered and/or surface water intercepted or disturbed(check one): 'b Yes or(n) No. a. If yes, please describe: Expect to expose alluvial ground water associated with Piedra River. (nose of otp jG to create a pond Area may have a watershed of up to 100 acres of hillside. 9) (Optional) Please provide additional information about the Mining Plan: Purpose of excavation is to create a permanent pond of approximately 2-3 acres on the property. in the alluvium and therefore connected to the Piedra River aquifer. As needed to meet CDOT requirements, install a stabilized construction entrance (rock or devices) in the driveway/access road to prevent tracking of mud and dust onto SH-151. Either relocate power pole(s)to west edge of permit area to be done by LP EA) or excavate to protect a power poles. egin mining by stripping the entire area to be excavatedand store soil in a windrow along the West edge, of the pit (up to 800 feet lui ig, 6 feet wide, 3-4 feet tall), ai id stabilized against wii id ai id wate, erosion. Move excess soil (beyond that needed fo, i eclamation above the expected ,io,,nal high wateF rnaFk of the pond)to Leb Lelly Pit (LLP)to be used fE)F Feelarnatien or feF future sale. (Lob Lolly Pit (M-2013-066) is permutta-d- to- ar-w;ept clean materials from Fxcavate pitri in working north to sol ith -ising front-end loader P-xnavator andlor scrapers and OIR— tr,,rks to move to I I P No rri ishing, ��`reening, or washing will he none on thig site. eay . slapes_ at final grade as much as possible as mining proceeds both above and below water level, when necessary backfilling as excavation proceeds, including stockpiled soil beyond that needed for reclamation. (See Reclamation Plan.) Once ground water is exposed and too deep for excavation by loader, evacuate and load material into trucks using track-or wheeled- ac oe. No clewatering is proposed. Extend a rive access road along a ramp o maximum grade) and south as excavation progresses. Remove the ramp during reclamation (and material hauled to LtP or used V final Do no processing of materials on-site. Store me fuel or other water priority chemicals on-site. inspect fOF leaks and drippage daily, including any sheen on wateF SUrface: Fespond to mitigate as needed Use water for dust control as necessary to prevent visible dust emissions from crossing permit and property boundaries As necessary, maintain stabilized construction entrance and use maq-water or other dust control chemical to prevent dust and tracking by haul trucks. Require all vehicles and equipment to come to a full stop (signs posted)whenever crossing SH-151.