Laserfiche WebLink
caused by human activities such as human ingress and egress, truck lrafftc, wind- <br />generated vibration and other normal human activities. <br />13. The Boazd, having considered the evidence concerning potential impacts caused by <br />blasting activities at the quarry site, and at the recommendation of the Division and with <br />the concurrence of the Applicant, has determined to add a condition contained in the <br />Division's Rationale that requires installation of seismographs at locations to be approved <br />by the Central CityBlack Hawk Sanitation District. The condition ("Condition #3") is <br />set forth in the Order below. The seismographs aze to monitor each quarry development <br />and production blast. Seismograph records are to be kept for a minimum of three years. <br />If the Central GitylBiack Hawk Sanitation District refuses to allow access for <br />seismographic monitoring, the Division will reevaluate the blasting condition and will <br />require submission of a technical revision by the Applicant. <br />14. The weight of the evidence demonstrates that with Condition #3, the Applicant has met <br />the minimum requirements ofRules 6.4.4(1) and 6.5(4). <br />15. Issue 7(C), Identification of Structures within 200 Feet of Affected Land (Rule <br />6,4.19-Exhibit S). Rule G.4.19(b) sets forth a compliance option allowing the Applicant <br />to submit an appropriate engineering evaluation demonstraiing that structures within 2D0 <br />Feet of the affected ]and shall not be damaged by activities occurring at the mining <br />operations. As set forth in the Division's Rationale, the Applicant complied with this <br />requirement by submitting a geoteclutical analysis prepared by Lyman Henn, Inc. <br />demonstrating that such structures will nut be damaged by mining activities. The <br />Applicant provided revised maps C-l, C-2A, C-2B and C-2C, which accurately show the <br />it'IMRR Board Order, M-200~L067 <br />2678 <br />