Laserfiche WebLink
Mr. Wallace H. Erickson <br />Response to Sixth Adequacy <br />October 11, 2011 <br />Page 24 <br />Wildcat has also conducted engineering evaluations of potential impacts to off <br />site man made structures from blasting activities. See Exhibit 6.5, at 10 -11. Mr. Terry <br />Morris, P.E., calculated the amount of explosives which could be detonated with no <br />expected off site structural damage using the industry standard scaled distance approach. <br />Id. & Attachment 6.5.4. Mr. Morris determined that 1,100 pounds of explosive could be <br />detonated with no expected structural damage, and that the 100 pounds proposed by <br />Wildcat underground at the May Day No. 2 would also cause no structural damage. Id. <br />The affected access adjacent to the road area will be immediately revegetated and <br />stabilized after construction while the installed drainage structures will be constructed to <br />direct any potential sediment from the road surface. The road will be primarily used by <br />ATVs and pickup trucks. In addition, Wildcat has made the commitment to replace, <br />repair, test and sample wells as necessary. <br />Wildcat submits these engineering evaluations satisfy the requirements of Rule <br />6.4.20(b). <br />Adequacy Issue No. 15. <br />The discharge of arsenic to the La Plata River is a pre - permit condition and, as <br />noted by WQCD, the Applicant is required to obtain an individual NPDES permit for the <br />mine drainage. Pursuant to Rule 3.1.5(11), no unauthorized release of pollutants to <br />ground water shall occur from any materials mined, handled or disposed of within the <br />permit area. Pursuant to Rule 3.1.5(3), the Applicant/Operator is obligated to protect off - <br />site areas from damage. Please revise the ground water monitoring plan to add one or <br />more monitoring wells along the eastern side of the La Plata River and immediately up <br />gradient from the domestic wells owned by O'Donnell, Fagerlin and Linden, as necessary <br />to verify compliance with Rules 3.1.5(3), (11) and 3.1.7. <br />Response to Adequacy Issue No. 15. <br />Wildcat will modify the third paragraph of Section 6.4.7(2)(c)(ii) at Page 4 of <br />Exhibit G (Ex. 12) to commit to adding one monitoring well along the western side of the <br />La Plata River and immediately up gradient from the domestic wells owned by <br />O'Donnell, Fagerlin and Linden, as necessary to verify compliance with Rules 3.1.5(3), <br />(11) and 3.1.7. Wildcat will add a fourth sentence to this paragraph as follows: "Wildcat <br />will install an additional monitoring well along the western side of the La Plata River and <br />immediately up gradient from the domestic wells owned by O'Donnell, Fagerlin and <br />Linden." <br />Wildcat will also modify the fourth paragraph of Section 6.4.7(2)(c)(ii) at Page 4 <br />of Exhibit G as follows: "The La Plata River monitoring well will be installed in <br />accordance with the design, completion, testing and monitoring requirements summarized <br />DEN 97,629,117v1 10 -11 -11 <br />GREENBERG TRAURIG, LLP 0 ATTORNEYS AT LAW ® WWW.GTLAW.COM <br />