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DEFICIENCY NOTICE CMLRB 112 Permit Application <br />Agile Slone Systems, Inc. <br />• <br />28. The Division also learned during the pre-operation inspection that natural land <br />will be left as a barrier between Tallahassee Creek and the gravel extraction areas <br />A and B. Provide the dimensions of this barrier, and your plans for use of filter <br />fabric on the pit side and coarse rock on the creek side. Show this barrier (berm) <br />on the Mining Plan Map and provide a thorough discussion in the reclamation <br />plan. <br />The barrier between the Tallahassee Creek and the gravel extraction areas is <br />referred to as the Buffer. It will be 100' wide with roadway and appropriate <br />drainage swales/ditches. It is thoroughly delineated on all maps and <br />thoroughly discussed in exhibits D, E and L. Filter fabrics will not be used <br />on the berm or pond areas except beneath the rip rap in the emergency <br />outflow areas from either pond at the quarries. <br />29. It was also teamed during the pre-operation inspection that the gravel pit A and B <br />may receive runoff and process water from the plant azea. Provide a discussion of <br />how this water will be controlled to prevent pollution of surface and ground <br />water. <br />• See exhibits D, E and G. Field percolation tests have demonstrated that <br />storm water events will be removed at the rate 1.5"/minute yet the 100 storm <br />event only results in 3.0"/24 hours. Nevertheless, all water within the gravel <br />pit and plant area will be completely surrounded by a 100' plus buffer of <br />gravel as it currently exists. The plant area will be reduced an average of <br />about 8' and obviously the gravel pit areas will be reduced much deeper. <br />Between the gravel percolation and the reduced elevations within the <br />surrounding buffer, no water within the gravel bar should be expected to <br />provide surface run off into the Tallahassee Creek thereby controlling any <br />surface runoff. <br />All fuel and other related items will have their own containment berms <br />and/or procedures as discussed in Exhibits D and E. The only pollutant from <br />the mining operating susceptible to water run off is the sand, gravel and rock <br />which has been in the area for millions of years. Any unrealistically huge <br />water run off would only carry pre-existing or similar sand, gravel and rock <br />to other areas with similar orpre-existing Saud, gravel and rock where upon <br />infiltration into the Saud, gravel and rock, such material will be stripped out <br />of the water. Auy ground water will act as a filter just like the filtration <br />systems at municipalities stripping the sediments from the water. <br /> <br />tz <br />