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Technical Revision <br /> Vollmer Pit <br /> Schmidt Construction Company <br /> Permit M-1983-035 <br /> The following changes are instituted by this technical revision to the permit. In a sense, this technical <br /> revision defines the possible conclusion of this permit with continued mining or full reclamation or <br /> possible development of the property by another party. <br /> I. "Bonding boundary" is established that defines the amount of land within the permit that is <br /> currently included in the bond. <br /> A. The bonding boundary includes, at the minimum, the amount of affected land and/or <br /> an additional amount of land that will potentially become affected land. <br /> B. Land outside the bonding boundary cannot be affected without first increasing the <br /> amount of land bonded and therefore expanding the bonding boundary. <br /> C. The initial amount of land included in the bonding boundary established in this revision <br /> is 47.5 acres. <br /> D. The amount of bond required is dependent upon the estimated cost to reclaim the <br /> affected land assuming any newly affected land that is not currently affected is affected <br /> in accordance with the mining and reclamation plan contained in the permit. <br /> II. The acreage contained in the affected land is increased from that reported in recent annual <br /> reports. <br /> A. Some of this increase is quite small and accounts for some erosion that has recently <br /> been discovered to extend beyond the previous affected land boundary. This land is in <br /> the southeast corner of the currently affected land. <br /> B. In previous annual reports the north berm was considered "revegetated land."Because <br /> of future reclamation or other options this land is now shifted from that category to <br /> affected land because this berm will eventually be removed to fill/topsoil the pit floor. <br /> C. The total acreage in the affected land is now 41.2 acres. <br /> D. The difference between affected land and bonded land is 6.3 acres. Therefore, this <br /> revision allows for 6.3 acres of additional disturbance if that is needed. <br /> E. This also means that 32.5 acres of permitted land cannot be disturbed without bonding <br /> all or a portion of that land. This is all on the east end of the permit area. <br /> III. Future operations projection. <br /> A. It is not known whether mining will continue at this operation as extensive housing <br /> development on adjacent land may restrict the efficacy of future mining. <br /> B. However, the expansion of the bonding boundary eastward from the affected land <br /> boundary allows for future mining or, if necessary reclamation operations to begin full <br /> Page 1 of 3 <br />