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QpK96 PAGE 586 current county regulations relating to incidental to construction mining operations, and bring more information and a recommendation back to the Board. In addition, staff and the PSAC were also directed to review timeframes for completion of long-term commercial mining operations. After the workshop, staff researched the issues raised by the Board and presented these issues and corresponding analysis to the PSAC. At its October 19, 1995 meeting, the PSAC considered staff's comments and recommendations, and comments from Dean Luethje and other interested parties, including long time local miner Bud Jenkins. At that meeting, the PSAC recommended that the Board direct staff to initiate certain changes to the county's current mining regulations (see attachment #2). The PSAC's recommendation is the same as staff's recommendation contained at the end of this report. The Board is now to consider the PSAC and staff recommendation and determine whether or not to direct staff to initiate changes to current county mining regulations. ANALYSIS: Staff and the PSAC have reviewed the following issues based upon the Board's direction: • The incidental to construction mining operation -12, lake depth limitation. • The incidental to construction mining operation 2 month time limitation. • Timeframes to complete long term commercial mining operations. Staff's analysis of these issues is as follows: •Incidental to Construction Allowances and Limitations LDR Section 934.04(7)(b) allows excavation and hauling of material incidental to an approved construction project where more than 5,000 cubic yards of material is exported off-site. Such activity can occur throughout the county in all zoning districts, including residential districts but is restricted in various ways (see attachment #3). The restrictions are applied to incidental to construction mining activities to protect the environment, address road impacts, and to tightly limit the length of time and time of day that such mining and hauling activity is allowed to impact surrounding properties. At the September 21st workshop, engineer Dean Luethje presented a proposal to create a ±40 acre stormwater management and irrigation - lake at the western portion of the Bent Pine development. Creation _ of such a lake would respond to the St. Johns River Water Management District's desire for the Bent Pine golf course to be irrigated from a source other than by Floridan Aquifer well water, a source with a high chloride count. Creation of the lake would produce an enormous amount of excess fill to be hauled off-site. Mr. Luethje asserted that such a proposal could not be approved under the current county LDRs because of the following: 1. The site does not have the proper zoning (agricultural) for a long-term commercial mining operation, and 2. The incidental to construction provisions limit excavation and hauling off-site to a 2 month timeframe, and lakes are limited to a 12' depth. Under Mr.' Luethje's proposal, more time and greater lake depth would be needed. November 14, 1995 10