2014-02-27_REVISION - C1981010 - Laserfiche WebLink

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Trapper Mining, Inc. G 1981 -010; PR7 Adequacy Review No. 2 Page 5 of 15 ii. Division's Response: The minimum surface water information required in accordance with Rule 2.04.7(2)(b)(1) is the minimum, maximum and average flow which identify critical low flow and peak discharge rates of streams sufficient to identiA, seasonal variations. Trapper has identified two additional subdrainage basins within the expansion area; Deacon and Jefkvay. For surface water within these subdrainage basins, Trapper will need to submit the information required by Rule 2.04.7(2)(b)(1). If new surface water monitoring sites are established, map M30 will need to be updated. 9. Prior to mining within the expansion area, the applicant will need to provide water quality data from surface waters in, discharging into, or which receive flows from surface or ground water from affected areas within the proposed permit area in accordance with Rule 2.04.7(2)(b)(11). The Division will stipulate the approval of this revision to this affect. a. Trapper's Response: Trapper proposes to estabbsln monitor6ig sites «itlli6i the Deaconi avid Jeffivav Gulches to establbli baseline monitoring. Sampling will be co�iducted utilizing the approved sampling procedures acid parameters ivitlliin the current permit. Trapper will subunit additiouiall requested infonnatioui p for to auiY miming 61 t➢ie permit expansioni area, b. Division's Response: The Division will stipulate the approval of this revision to this affect. 10. In accordance with Rule 2.04.7(3); prior to mining in the proposed expansion area, Trapper will need to evaluate if the mining operation may result in contamination, diminution, or interruption of an underground or surface source of water within the proposed permit area and adjacent areas for domestic, agricultural, industrial, fish and wild -life, or other legitimate use. The Division will stipulate the approval of this permit revision to require Trapper to submit a permit revision with the information required by Rule 2.04.7(3) prior to mining in the proposed expansion area. a. Trapper's Response: Tlie currently submitted infonnatioui contained oui revised page 2 -524 is applicable to tllie expams'oni area. Tllie proposed expam 'oui area exhibits s6ndar traits in geology and gruowid water. See response to Comment 8 for f irtllier discuussioui oui growid Nvater impacts. b. Division's Response: This item is resolved. 11. For the expansion area, please submit a map that depicts the location and extent of sub - surface water, if encountered within the proposed permit and adjacent areas, including but not limited to areal and vertical distribution of aquifers, and an estimate of seasonal variations of aquifer characteristics on cross section and contour maps as appropriate; in accordance with rule 2.04.7(4)(c). a. Trapper's Response: Tlne required iuformationi will be conta6ied ivitluin the upcom6ig 2013 Annuuall Hydrology Report. The locationi acid extent of sub - surface water- will be included 61 the Water-Level lEllevatioui maps iu the 2013 AHR. The proposed neiv permit bowidary will be added to these maps at that time, «ith the existing permit bowidary also included for referueuice. b. Division's Response: Sections 2.7.53 and 2.7.5.3a of Trappers permit discusses baseline groundwater levels and contains narratives, tables, figures and maps with the required information from Rule 2.04.7(4)(c) for the current permit area. Please revise these sections with baseline information for the expansion area or provide a new section containing the required information for the expansion area. The M54 map series depicts the pre -mine water level elevations in the various aquifers at the site; please update these maps with for the expansion area or provide a new map of the M54 series with this information.