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ALBERT FREI & SONS <br />INERT FILL NOTICE (RULE 3.1.5(9)) <br />Worthing Pit M -1977 -526 <br />P.O. BOX 700 <br />HENDERSON, CO 80640 <br />(303) 289-1837 <br />(303) 289 -2865 FAX <br />Over the life of the mine we will import inert materials as <br />defined in Rule 1.1(20), into this mining operation. In some <br />cases it will be recycled and sold or used to partially construct <br />the slopes that will be left when mining ends. In addition, the <br />Frei Inert Fill Facility plan and Map Exhibits were submitted to <br />the Division on July 30, 2010 show where this area is located. <br />This facility accepts Inert Material, the same material as <br />defined in the Colorado Department of Public Health & Environment <br />regulations. If courser fill is used it will then be covered <br />with finer material and revegetated where required by the permit. <br />If the material is good dirt we will use it to supplement the <br />topsoil needs for the mined area. Sloping will not be delayed if <br />fill is not available since the fill will supplement material on <br />the site at this time. <br />The exact amount of material to be imported is unknown for <br />general use. For the inert fill Facility we will record the <br />volume imported each day and keep a running total so if needed <br />the Division will know how much and how it as disposed of. <br />Importing fill began prior to 1992 when this regulation went <br />into effect. The Inert Fill Facility began accepting material in <br />the Fall of 2011. We will continue to import inert fill until <br />reclamation is complete or we no longer have a source. <br />No specific compaction rates are proposed for the fill. The <br />material usually available contains smaller pieces of concrete, <br />or dirt mixed with the larger pieces of the same material. This <br />makes it very difficult to achieve a specific compaction rate. <br />While we take no action to reach a specific compaction rate, the <br />way the material is placed tends to compact it. We run heavy <br />equipment over the filled area during the filling process and the <br />material is compacted as a result. Stabilization of this fill <br />material is not a concern because of the limited amount used in <br />the slopes and the way it is placed. What voids do remain are <br />usually under large pieces of material and little settling is <br />possible. <br />Date: December 27, 2012 <br />