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ORDINANCE NO. 88 - <br />(b) The established littoral zone shall consist of native <br />vegetation, and shall be maintained permanently as part <br />of the waterbody. All landscaping, littoral zone <br />revegetation plans and lake management plans shall <br />comply with St. John's River Water Management District <br />rules. <br />(c) Within extended littoral zone shelves (at the landward <br />base of the littoral zone side slopes), the applicant is <br />required to provide a minimum of one tree for every five <br />hundred (500) sq. ft. of littoral zone coverage. The <br />proposed trees must be a minimum size consistent with <br />Florida Division of Forestry seedlings (10" tall at <br />planting depth) and consist of native, freshwater <br />wetland varieties (e.g. red bay, red maple, bald <br />cypress, etc.). <br />(d) The slopes of the waterbody areas from top of bank to <br />the littoral zone area shall not exceed one (1) foot <br />vertical to three (3) feet horizontal. Littoral zones <br />and extended littoral zone shelves shall be located <br />within an area bounded by a landward limit of one (1) <br />foot above the control water elevation and a waterward <br />limit of two and one-half (2Z) feet below the control <br />water elevation. The amount or area of littoral zone <br />shall be computed at a rate of fifteen (15) square feet <br />of littoral zone (below control elevation) per linear <br />foot of shoreline. The littoral zone slope shall not be <br />steeper than an average slope of one (1) foot vertical <br />to six (6) feet horizontal, and the littoral zone need <br />not be established in a continuous band around the <br />waterbody. Although no minimum slope below the littoral <br />zone is required, the slope below the littoral zone <br />shall be constructed so that natural soil movement will <br />not reduce the littoral zone area. <br />(e) There will be no significant adverse off-site impact on <br />groundwater quality or groundwater levels. In the event <br />of dewatering associated with excavations (including <br />mining), the applicant shall present evidence that no <br />salt -water intrusion and/or reduction in quality or <br />quantity of well water available to properties within <br />1/4 mile of the permitted activity will occur. <br />(f) The water management system, i.e., swales and inter- <br />connected wetlands and lakes, must be specifically <br />designed to inhibit siltation and the eutrophication <br />processes. To ensure this, the applicant must submit an <br />environmental management and lake monitoring plan, <br />specifying the method for monitoring the system and <br />corrective action should eutrophication and/or siltation <br />occur. <br />(h) A 20 foot wide access maintenance easement shall be <br />provided for every 1,000 feet of shoreline. This <br />easement shall extend from below control elevation of <br />the lake to a public or private road right-of-way. <br />(6) Mining permit regulations. <br />(a) Applicability. A county mining permit shall be required <br />for any mining activity (as defined herein) in the <br />unincorporated county, except as exempted in Section <br />25(r)(4) of this ordinance. Any request for a mining <br />permit shall be considered an application for site plan <br />approval, and the procedures set forth in Section 23.1 <br />of this code shall be followed. The provisions of this <br />section shall be considered as conditions to the admin- <br />istrative permit use or special exception use as allowed <br />