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FF,_ -1 Boos 95 PmL Director Boling advised that it would not, as the section of the regulations that deals with excavation incidental to development projects does not include this section that is being amended; the proposed changes only apply to mining operations. Mr. Luethje then inquired whether exceeding the 5,000 cubic yards on a removal in a site plan for the exemption pertained to this regulation, and Director Boling stated that is a separate section. There are other sections of the mining ordinance that would apply, such as bonding, but the section to be amended would not apply to incidental excavation. Mr. Luethje believed there are situations where the neighbors would not object and asked that the Board review each mining application on an individual basis and not add this 500 foot setback. He felt that the mining requirements actually should be reduced and handed out a cross-section showing the 10 mile coastal ridge that runs along the railroad and US #1. He indicated an area from I-95 to the coastal ridge where the water is trapped. Insurance maps show flood areas there and the water can only be relieved through the south relief canal, the main relief canal, the north relief canal, or the south prong of the St. Sebastian River. He believed there are benefits from mining operations to. the floodplain displacement problem in this area. He asked that the Board remove this item and consider a workshop to further discuss the matter. Mr. Luethje felt that the more retention areas and lakes and ponds that can be constructed, the less flooding will occur in this particular area and the better the situation will be. Vice Chairman Adams thought that a workshop would be a good idea; however, the current concern is the closeness of homes to these sand mine operations and "temporary" takes on a new tone when some of these operations run 15 years. Mr. Luethje believed there is a need to reduce the number of mines active at one time but did not want to see the mining operations reduced because he felt that is a benefit that we need - to look at and that we need hundreds of acres of lakes to help retain some of the water. Indian River Farms Water Control District maintains the water out there at about a 15 foot elevation while the ground out there is 20 to 21 feet. If we maintain our lakes at that same elevation, we will have more floodplain displacement. Brian Jenkins of 7150 20th Street agreed with Dean Luethje and added that it is hard to find and afford a site of more than 40 acres. If the 500 foot setback is established, you would need 100 8 MAY 319 1995