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zones. Finally, the county could allow for extensions that <br />correspond to the period(s) of time a mine was inactive due to <br />market conditions, such as during an economic recession when fill <br />material for new development is not marketable. <br />RECOMMENDATION: <br />Staff and the PSAC recommend that the Board of County Commissioners <br />direct staff to initiate changes to current county mining <br />regulations to: <br />1. Establish a special,' alternate permitting process for certain <br />incidental to construction mining operations, that: <br />a. Could be used by applicants who could justify (for <br />environmental or stormwater reasons) an extended period <br />of time for hauling material from .a particular <br />development site. <br />b. Would allow an initial 4 month period for off-site <br />hauling with the possibility of a 6 month extension, if <br />warranted. The total maximum time for off-site hauling <br />would be 10 months. <br />C. All other "incidental to construction" criteria would <br />apply, including the 12' maximum lake depth limitation. <br />No special buffering or setback criteria would apply. <br />2. Establish specific mining operation completion and restoration <br />timeframes, as follows:_ __ <br />a. Establish specific timeframes, based upon quantity of <br />material removed, as follows: <br />Less than 10,000 cubic yards ....... 1 year <br />10,000 - 99,999 cubic yards ........ 2 years <br />100,000 - 500,000 cubic yards ...... 5 years <br />over 500,000 cubic yards .......... 10 years <br />b. Establish a 6 month "post -excavation activity" timeframe <br />for site restoration. <br />C. Provide for timeframe extensions based upon inactive time <br />periods due to market conditions, such as periods of <br />economic recession. <br />1 3 BOOK 96 PAGE <br />November 14, 1995 <br />