BOCC Exhibits A-E ECY Approved SMP-Code Amendments

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Kittitas County Board of County Commissioners Shoreline Master Program Adopting Ordinance Kittitas County Shoreline Master Program Exhibit D | March 2016 | Page 287 of 339 residential subdivision of four (4) or fewer lots, or a water-dependent or water-related use or development. The buffer averaging shall be allowed only in those limited instances when adherence to the standard buffer is infeasible or presents a substantial hardship because of site conditions, lot configuration or other circumstances. Buffers that have been averaged or reduced by any prior actions administered by Kittitas County shall not be further averaged. Prior to approving buffer averaging the Administrator shall require a critical area report (per the requirements in KCC 17B.05.020W). With buffer averaging, the buffer width is reduced in one location and increased in another location to maintain the same overall buffer area. Proposals for buffer averaging shall not require a shoreline variance or compensatory mitigation if the following conditions are met: a. The minimum width of the buffer at any given point is at least seventy five percent (75%) of the standard width per the Table at KCC 17B.05.050-1, or twenty-five (25) feet, whichever is greater; b. The net buffer area (acreage) after averaging is the same as the buffer area without averaging; and c. The area that is added to the buffer to offset the reduction is well-vegetated. The Administrator may require vegetation enhancement if needed to ensure this criterion is met. 6. Where possible, development and uses within the urban conservancy, rural conservancy, and natural designations shall be situated to avoid or minimize impacts to forest habitat and other relatively undisturbed native vegetation communities. 17B.05.060 Water quality, stormwater, and nonpoint pollution. The following section applies to all uses and development in shorelines of the state, as defined in WAC 173-26-020, that affect water quality. To ensure mutual consistency between shoreline management provisions and other regulations that address water quality and stormwater quantity, including public health, stormwater, and water discharge standards, the regulations that are most protective of ecological functions shall apply. A. Policies. Pursuant to RCW 36.70A.480, the water quality, stormwater, and nonpoint pollution policies of the 2016 Kittitas County Shoreline Master Program shall be considered as policies of the Kittitas County Comprehensive Plan. B. Regulations. 1. Shoreline use and development shall incorporate measures to protect and maintain surface and groundwater quantity and quality in accordance with all applicable laws. 2. New uses and developments shall provide stormwater management facilities designed, constructed, and maintained in accordance with the current stormwater management standards. Deviations from these standards may be approved where it can be demonstrated that off-site facilities would provide better treatment, or where common retention, detention and/or water quality facilities meeting such standards have been approved as part of a comprehensive stormwater management plan. 3. Best management practices for control of erosion and sedimentation shall be implemented for all use and development proposals in shorelines through an approved temporary erosion and sediment control (TESC) plan, identified in the Stormwater Management Manual for Eastern Washington, as amended. 4. On-site sewage systems shall be located, designed and maintained to meet all applicable water quality, utility, and health standards. 5. All building materials that may come in contact with water shall be constructed of untreated wood, cured concrete, or steel. Materials used for decking or other structural components shall be approved by applicable state agencies for contact with water to avoid discharge of pollutants. Wood treated with creosote, arsenate compounds, copper chromium arsenic or pentachlorophenol is prohibited in shoreline water bodies.