NR 155.15(2)(g)3.3. The department may consider redevelopment of an existing development and in-fill to be either existing development or new development for purposes of this paragraph. In making its determination, the department shall consider the type of land cover within and adjacent to the development and the areal extent of the development. NR 155.15(2)(g)4.4. In this paragraph, “existing development” has the meaning given it in s. NR 151.002 (14g), “in-fill” has the meaning given it in s. NR 151.002 (18) and “new development” means development resulting from the conversion of previously undeveloped land or agricultural land uses initiated after October 1, 2004, or development for which a notice of intent was received by the department or the department of safety and professional services after October 1, 2004. NR 155.15(2)(h)(h) Pollutant control measures needed during construction of highways and bridges. NR 155.15(2)(i)(i) Installing, operating and repairing a small-scale on-site human domestic waste facility. NR 155.15(2)(k)(k) Installing dams, pipes, conveyance systems and urban best management practices, including storm sewer rerouting and land acquisition for structural urban best management practices, when intended solely for flood control. In this subsection, “dam” means any artificial barrier in or across a waterway, which has the primary purpose of impounding or diverting water. A dam includes all appurtenant works, such as a dike, canal or powerhouse. NR 155.15(2)(L)(L) Practices whose purpose is to accelerate or increase the drainage of land or wetlands, except where drainage is required as a component of an urban best management practice. NR 155.15(2)(m)(m) Practices to control spills from commercial bulk storage of pesticides, fertilizers, petroleum and similar materials required by ch. ATCP 33 or other administrative rules. NR 155.15(2)(o)(o) Practices previously installed and necessary to support cost-shared practices. NR 155.15(2)(p)(p) Urban best management practices located outside an eligible geographic area. NR 155.15(2)(q)(q) Activities funded through state or federal grants for wastewater treatment plants. NR 155.15(2)(s)(s) Urban best management practices that do not meet the eligibility criteria under sub. (1). NR 155.15(2)(t)(t) Costs that another governmental unit is also reimbursing. NR 155.15(2)(u)(u) Other practices, which the department determines, are not necessary to achieve the objectives of the project. NR 155.15(3)(a)(a) The department may allow cost sharing for items identified under sub. (2) if necessary to implement a demonstration project. The department shall require demonstration projects to meet all of the following criteria to be considered eligible for cost sharing under this subsection: NR 155.15(3)(a)2.2. The project shall be determined by the department to have statewide or regional significance and shall be designed to provide results that are transferable to other locations within the state. This includes projects that demonstrate traditional or innovative management measures or urban best management practices needed in order to increase acceptance, use and understanding of cost-effectiveness, including pollutant control capability. NR 155.15(3)(a)3.3. The project shall have an approved strategy for developing and disseminating information and education materials explaining the project and its management implications. NR 155.15(3)(b)(b) The department may consult with the university of Wisconsin-extension or its agent in considering demonstration project proposals. NR 155.15(4)(4) Cost-share rates and cost-share conditions. Cost-share rates and cost-share conditions identified in ch. NR 154 or the runoff management grant agreement shall be used for urban best management practices funded under this chapter. NR 155.15(5)(5) Cost-effectiveness. The state cost-sharing amount shall be the total cost of an eligible practice multiplied by the cost-share rate, unless otherwise provided for in this chapter or in ch. NR 154. Where 2 or more practices are of equal effectiveness in reducing pollutants, the amount of cost sharing shall be based on the least cost practice. NR 155.15(6)(6) Interim best management practices and alternative design criteria. NR 155.15(6)(a)(a) Purpose. The purpose of this subsection is to provide for the use of best management practices, management measures, design criteria or standards and specifications that are not included in ch. NR 154 but that will contribute to achieving water quality goals. NR 155.15(6)(b)(b) Requirements. The department may consider eligible for cost sharing best management practices, management measures, design criteria or standards and specifications other than those included in ch. NR 154 provided that all of the conditions in this paragraph are met. NR 155.15(6)(b)1.1. The practices, design criteria, standards or specifications developed under this subsection may not be applied for the purpose of meeting a non-agricultural or transportation performance standard identified in ch. NR 151.