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<br /> <br />63 <br /> <br />4. Delay in Mitigation. The Director may authorize a one-time temporary delay, up to one <br />hundred eighty (180) days, in completing minor construction and landscaping when <br />environmental conditions could produce a high probability of failure or significant construction <br />difficulties. The delay shall not create or perpetuate hazardous conditions or environmental <br />damage or degradation, and the delay shall not be injurious to the health, safety, and general <br />welfare of the public. The request for the temporary delay must include a written justification <br />that documents the environmental constraints which preclude implementation of the <br />mitigation plan. The justification must be verified and approved by the County and include a <br />financial guarantee. <br />5. Preference of Mitigation Actions. Compensatory wetland mitigation shall occur in the <br />following order of preference: <br />a. Purchasing credits from an approved Mitigation Bank if available and feasible, <br />Purchasing credits from an approved In-Lieu Fee program if available and feasible, <br />and Permittee Responsible Mitigation (PRM). <br />b. In order of preference, the following PRM methods are available: (1) Restoration [re- <br />establishment or rehabilitation], (2) Establishment [creation], (3) Preservation of <br />existing high quality habitats, and (4) Enhancement of degraded wetlands.. <br />6. Replacement Ratios for Wetland Impacts. Ratios for compensatory mitigation shall be as <br />specified in Table KCC 17.07.070.6. The first number specifies the acreage of replacement <br />wetlands, and the second specifies the acreage of wetlands altered. Compensatory <br />mitigation shall restore, rehabilitate, create, or enhance equivalent or greater wetland <br />functions. The ratios shall apply to mitigation that is in-kind, is on-site, is the same category, <br />is timed prior to or concurrent with alteration, and has a high probability of success. The <br />Director may increase these ratios for remedial mitigation actions resulting from unauthorized <br />wetland alterations, depending on the nature and extent of the alteration. These ratios do not <br />apply to the use of credits from a certified wetland mitigation bank or in-lieu fee program. <br />When credits from a certified bank or in-lieu fee program are used, replacement ratios should <br />be consistent with the requirements of the bank’s/program’s certification. <br /> <br />Table 17A.07.070.6: Wetland Mitigation Ratios <br />Category <br />and Type <br />of <br />Impacted <br />Wetland <br />Restoration or <br />Creation1,2 Rehabilitation1,2 Enhancement <br />Only1,3 <br />Category <br />I, forested 6:1 12:1 24:1 <br />Category <br />I, non- <br />forested <br />4:1 8:1 16:1 <br />Category <br />II, <br />forested <br />4:1 8:1 16:1 <br />Category <br />II, vernal <br />pool4 <br />2:1 4:1 Case-by-case <br />All other <br />Category <br />II <br />3:1 6:1 12:1 <br />All <br />Category <br />III <br />2:1 4:1 8:1 <br />All 1.5:1 3:1 6:1