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yp <br />When redevelopment occurs that has the potential to adversely impact a <br />wetland. For purposes of this subsection redevelopment means the <br />removal of the principal structure to the extent of more than SO percent of <br />its market value and volume and reconstruction on the same property. This <br />requirement does not apply if construction is the result of less than 75 <br />percent of the building being damaged by an involuntary force, such as <br />fire, wind, or vandalism; <br />(4) When any construction or land alteration activity that does not fall within <br />the meaning of ’redevelopment ’ has the potential to adversely impact a <br />wetland. <br />For purposes of this section, "the potential to adversely impact a wetland" exists when all <br />of the following three condliions exist. <br />a. the portion of the property disturbed by construction or land alteration activity <br />drains to the wetland; and <br />b.the amount of grading exceeds SO cubic yards or the construction activity involves <br />the disturbance of more than 5,000 square feet of area; and <br />c.the redevelopment activity results in a net increase in the square footage of <br />inq)ervious suiftces that drain to die wetland, or results in die relocation of <br />impervious surfaces closer to the wedand, or results in changes to drainage <br />patems (slopes, meander patterns, etc) that the City Engineer determines will <br />increase ^ velocity or rate of runoff to the wedand. <br />For new development, all wetlands on the property shall be subject to the buffer <br />requirements. For redevelopment or other grading or construction situations that are not <br />new development, only the wetland diat is potentially adversely impacted shall be subject <br />to the buffer requirement. In the event that the wetla^ is on an adjacent property but near <br />enough to the subject property so that buffers to said wedanJ would extend into the <br />subject property, the bui^ requirements apply.