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16 <br />(e)(d) Any land land-disturbing activity, regardless of size, that the city <br />determines would otherwise cause an adverse impact to an environmentally sensitive <br />area or other property including areas within floodplain and shoreland districts. <br />(2) Exceptions <br />(f)(a) A permit is not required for single family residential construction on an <br />individual lot of record, if the proposed impervious surface of the lot is less than 10,000 <br />square feet, excluding the driveway. Stormwater management requirements do not <br />apply to development of an individual lot within a residential subdivision if it conforms to <br />an approved development plan. <br />(g)(b) Stormwater management requirements do not apply to sidewalks and <br />trails ten feet wide or less that are bordered down-gradient by vegetated open space or <br />vegetated filter strip with a minimum width of five feet, however the grading, erosion and <br />sediment control requirements are still effective. <br />(h)(c) Stormwater management requirements do not apply to bridge spans, mill, <br />reclamation and overlay projects that do not expose underlying soils. <br />(i) Stormwater Management Requirements do not apply to bridge span projects, <br />however grading, erosion and sediment control requirements are still effective. <br />(d) Stormwater Management Requirements do not apply to single family <br />residential subdivisions creating seven or fewer lots that: <br />1. Establish no new public roadway; and <br />2. Includes no private roadway/driveway serving three or more lots <br />(2)(3) Stormwater management performance standards. Site plans for new <br />development of any kind will be assessed for stormwater quantity control and <br />stormwater quality managementA stormwater management plan shall be submitted with <br />the permit application for a project equaling or exceeding the threshold of Section <br />1011.011 (1). . The plan shall be designed general policy on stormwater runoff rates is <br />to reduce the impacts of development by maintaining predevelopment hydrological <br />conditions in the following ways: <br />(a) Use of natural topography. The applicant shall incorporate the use of natural <br />topography and land cover such as natural swales and depressions as they exist before <br />development to the degree that they can accommodate the additional flow of water <br />without compromising the integrity or quality of the receiving waterbody. <br />(b) Minimize impact to natural features. The development shall minimize impact <br />to significant natural features. Applicant shall review the site for natural features <br />protected under city, state or Federal federal requirements, including steep slopes, <br />wetlands, wooded areas, endangered or threatened species, or species of concern <br />habitat, areas designated by the county biological survey, greenways, parks and open <br />space, groundwater recharge areas, wellhead or surface water protection areas or <br />regional stormwater pond locations. <br />(c) Conveyance system. Wherever possible untreated and treated stormwater <br />runoff shall be conveyed in facilities open to the atmosphere (e.g. swales, vegetated