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GCT-08-2001 08:41 PM <br />SBY/SIERRA <br />303:1 9652 <br />Description of Corrective Acdon <br />September 2001 <br />P, 02 <br />9~ejV~ <br />• ~ OCT ~ 9 opal <br />~'bo °/moo ~ %e/ <br />Mi~e~a~a~ry%ce <br />B Ga%9y <br />Ytt4 Qatlt'ry <br />Mine ID iM M-1999.OSS <br />On July 3, 2001, Mr. Bob OaNald of the Colorado Division of 14liaerals and Geology <br />visited the Yuia Quarry in nsponae to receiving a citiren oompleim (9otn Steve and Kim <br />Mchriyre, owner of property adjacent to the Yule Query) about pouible damage due to <br />Sierra's possible lhilure to contain marble wastes within the permit area. Bob found that <br />Siern had allowed uacantrolled runoff and sedimerrtution to affect arras adjaoem to the <br />mine acceu road and Bob described the corrective acdon necessary to be completed by <br />September 30, 2001. Dtuing Augurt end September, Sleet completed work on the <br />roadway u required in Bob's findings. <br />In his roport Bob requirod the fblbwing corrective actloa: 'The operator must remedy <br />the ieadequete drainage pattern and runoff control structrtt+es on the roadway, such as: <br />directing runoff to the inside road edge, discontinuing ux of fines u and earthen berm <br />nurteriel, and replace missing barrlers by something moro substamW or appropriate." <br />BeAxe the improvements were made, the road had been sloped outward. Any storm <br />runoff tended to flow to the outebde of the road, through gaps in the jersey barriers and <br />over the tdge. Sierra had mempted <br />to keep this runoff from going <br />through the jersey barriers by <br />Placing flees from the quarry along <br />the base of the barriers, However, <br />this rrsuhed in small quantities of <br />the Snes being carried over the edge <br />with runoff a~ the atbrequerk <br />complaint by the McIruyres. <br />In order to accomplish the <br />eorrec;tive actions rcquined, Sierra <br />