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3 <br /> Topsoil Stockpile Berm - CF&I agrees to construct a sediment <br /> trap for the topsoil stockpile above the parking lot. The berm <br /> will follow the contour along the downslope side of stockpile and <br /> will be approximately 3 feet high with maximum sideslopes of 2 <br /> H: 1 V. The berm will be constructed of subsoil material and <br /> vegetated . <br /> NPDFS Monitoring Reports - There is no monitoring data. .for <br /> ponds 003 and 004 • Pond 003 has never discharged to date. Pond <br /> 004 discharged once during the heavy storm events of July and <br /> August of 1981 . CF&I believes the storm event was in excess of a <br /> 10-year 24-hour storm. <br /> Regular monitoring reports for Pond 002 are submitted to <br /> the Colorado Department of Health as required by the NPDES <br /> Permit. No violations have been issued by the Department of <br /> Health. <br /> SPCC Plan - In accordance with the Federal Water Pollution Control <br /> Act, �FRcI has developed an oil Spill Prevention Control and <br /> Countermeasure Plan (SPCC) for all applicable facilities. The <br /> Maxwell Mine SPCC Plan is on file at the mine and a,t, the Pueblo <br /> Mining office. The Plan is available for inspection by the <br /> Division. <br /> Sediment Field Markers - MLR regulations do not specifically <br /> require the installation of staff gauges in sediment ponds. <br /> Sediment Control at Fan Area. - The fan area at Maxwell. Mine is not <br /> an area of high use or disturbance, and CF&I is utilizing <br /> alternate sedimentation control for this area. Clean gravel <br /> surrounds the fan and fan house to protect the area from <br /> erosion. The road is also surfaced with gravel and undisturbed <br /> water is ditched away from the area. MLR _field inspections have <br /> pointed out several improvements in the fan area, such as <br /> blocking off a section of unused road and revegeta.ting certain <br /> areas . CF&I has implemented these improvements and requests <br /> approval for the use of alternate sedimentation control for the <br /> fan area. <br /> Sediment Ponds as Permanent Impoundments - CF&.I will <br /> remove the sediment ponds or will modify the ponds to comply with <br /> Rule 4.05 .9 at a later date. As it is not known at this time <br /> which alternative will be chosen, it would be premature to <br /> discuss exactly how the ponds would be modified. <br />