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hydrologic balance, we request that the operator show what impact their mining activity <br />has had on the 100 -year flood water surface elevations and floodplain functions through <br />a FEMA approved LOMR prior to DMRS releasing the reclamation permit. <br />, DRMS Rule 34- 32.5- 116(4)(i) requires that areas outside of the affected and shall <br />protected from damage occurring during the mining operation and reclamation. Mining <br />and reclamation activities may have changed the conveyance of the floodplain in the <br />100 -year flood. Since the currently mapped floodplain extends beyond the operator's <br />property, the potential exists for surrounding property owners to be impacted or even <br />damaged by the mining and reclamation activities that have occurred on the operator's <br />property. The operator can reduce their liability by obtaining a FEMA approved LOMR <br />which documents the impacts that mining has had on the FEMA mapped floodplain. <br />To summarize, in order to be consistent with applicable Federal, State, and Local <br />floodplain regulations, Weld County requests that the DRMS place a condition on the <br />amended permit to require a FEMA approved LOMR prior to the release /vacation of the <br />DRMS permit. This requirement will provide evidence that the mining operation has not <br />adversely impacted the hydrologic balance or adversely impacted properties outside of <br />the affected land from damage caused by the mining and reclamation operations. <br />Sincerely, <br />( r � <br />cla immi, P.E., CFM <br />Drainage and Floodplain Engineer <br />Weld County Public Works <br />Ori!■inal: Michael Conninglinune, MO/.Y <br />(arre11 Varl'n. 6 'nrru Companies, 8120 Gage Sl, Frederick, CO 80516 <br />Kim )gIc, Planning Services <br />Pao 2of2 <br />M: \PLANNING - DEVELOPMENT REVIE _VN7.DayCompletenessReviews \2010 \PA -067 Floodplain Comments to DMRS 4- 19- 11.clocx <br />