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f l` <br /> V <br /> � CC1C <br /> Continental Materials Corporation <br /> Transit Mix Concrete Co. 440 S. LaSalle St. Suite 3100 <br /> Chicago IL <br /> edel�{ eo 605 <br /> I�March 14, 2017 <br /> MAR 3 0 2017 <br /> Colorado Division of Reclamation, Mining and Safety DIVISIO <br /> N orAttn: Mr. Timothy Cazier MINING�S �TION <br /> 1313 Sherman St, Rm. 215 <br /> Denver, CO 80203 <br /> RE: Daniels Sand Pit #2, Permit No. M-1973-007SG; Corrective Action Response from December <br /> 12, 2016 Inspection Report. <br /> Dear Mr. Cazier: <br /> Transit Mix Concrete Co., on behalf of Continental Materials Corporation, is responding to your <br /> corrective action item list that was amended in your corrective action due date extension <br /> request approval from February 9, 2017. Transit Mix Concrete Co. (TMCC) appreciates the <br /> granted extension and provides an update and requests completion for two of the three <br /> corrective actions listed below. <br /> Corrective Action #1: <br /> INSPECTION TOPIC: Backfilling & Grading <br /> PROBLEM/POSSIBLE VIOLATION #2: Problem: Observed erosion rilling and portions of <br /> over steepened slope on the southwest embankment outer face of the current wash <br /> pond reducing the erosional stability and potentially the geotechnical stability of the <br /> embankment. <br /> CORRECTIVE ACTIONS: Prior to the Corrective Action due date, the Operator must place <br /> additional material on the outside face of the southwest embankment to achieve a <br /> slope no steeper than 3H:1V. <br /> EXTENDED CORRECTIVE ACTION DUE DATE: 3/27/2017 <br /> RESPONSE: <br /> On March 3, 2017 personnel at Daniels Sand Pit #2 completed the fill project along the <br /> outside face of the southwest embankment of the current wash fines pond. <br /> Approximately 4,500 tons of fine fill sand/clay particle material was placed from the top <br /> of the road along the top of the dam and then placed and compacted by a track dozer. <br /> Due to space constraints it was not possible to complete the whole area at 3HAV slope, <br /> however the slope was pushed out as shallow as possible. Starting from the east the <br /> slope is a bit shallower than 3H:1V at approximately 3.31-1:1V. As the slope progresses to <br /> the west and north the slope, does get steeper. At the northwest end of the slope, it is <br /> approximately 2.6H:1V. This is due to how close our work area is to our property line <br /> and the elevation of the area. Images of the sloping are included below. <br /> y <br />