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Eve applicant for a building emit subdivision approval, ora permit to allow land disturbing activities must conform to the Construction Site Stormwater Runoff Control standards set forth in Sections 7-99 thru 7-104 of this Article and the Engineering tering Design Standards. A Stormwater Management Plan meeting the requirements of the Engineering Design Standards is required for any of the following land disturbing* activities: Subdivision of an area exceeding one acre. This includes subdivision for single- family residential multi -unit residential commercial industrial or institutional development. (2) Any project that creates or reconstructs 10,000 square feet or more of impervious surface This threshold is cumulative of all impervious surface created or reconstructed through multiple phases or connected actions of a single complete project. In lieu of preparation of a Stormwater Management Plan, all land disturbing activities, as defined in the Engineering Design Standards within the city that will result in more than 100 cubic yards of cut or fill are only required to develop an erosion and sediment control plan addressing the requirements set forth in the design standards and are encourage to incorporate permanent Stormwater management. A plan is not required for single-family residential construction on an individual lot of record If the lot is within a development previously approved by the City, the construction must conform to the previous approval. Any construction activity that disturbs one or more acres is also required to obtain a separate NPDES Construction Site Pei -:nit. A copy of this permit and erosion and sediment control plan shall be submitted to the City Engineer. No building permit, subdivision approval, or permit to allow land disturbin activities shall be issued until the City Engineer has approved this plan. Sec. 7-77. Performance Criteria for Stormwater Mana erne�nt. Unless determined by the CiIy to be exempt, all site designs shall establish Stormwater Management Practices to control the peak flow rates volumes and pollutants of stormwater discharge associated with specified design storms and runoff volumes, as detailed in the Engineering Design Standards, Sec. 7-74 78. Variance. Upon application by a property owner, the City Council may vary any provision of this Article, in harmony with its general purpose and intent, where there are practical l difficulties or peculiar hardships that impede carrying out the strict letter of the - provisions of this Article so that the public health, safety, and general welfare may be secured and substantial justice done. The procedure to be used for the processing of such