DRAINAGE & EROSION 2004 - Laserfiche WebLink

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(96) Water Quality Volume (WQv) - The storage needed to capture and treat the volume of rainfall for 90% of the storm events which produce runoff in the watershed annually. (97) Watershed - A region draining into a water body. (98) Wetlands - Land characterized by the presence of water at a frequency and duration sufficient to support wetland vegetation or aquatic life. 3.0 Submission Requirements and Plan Approvals Any person or landowner who develops or engages in development activities on land or a development site subject to the provisions of this Ordinance must first obtain a Stormwater Management Plan Approval (SWMPA) from the PWO. A permit is obtained by first submitting a Stormwater Management Plan (SWMP) to the PWO, which shall include the following: 3.1 Complete set of plans including a title page with location and vicinity maps, existing and proposed condition plan sheets, construction details and erosion control plans all sealed by a registered professional. A plan and profile of the proposed drainage system shall be provided. Individual sheets shall be required for existing topography, proposed topography, erosion control, plan and profiles, and details. All sheets shall be 24 inches by 36 inches. 3.2 Mineral Extraction operations seeking a SWMPA shall submit the following additional materials with their proposed Stormwater Management Plan (SWMP): a certified survey showing the number and proximity of residents within the adjoining area (per 312 IAC 2-3-2); a copy of the approved driveway permit with all transportation and drainage easements and right -of- ways granted by the applicant along public ways and waterways; and a reclamation plan. Any changes in a plan approved by the PWO must be submitted to the PWO and re-approved as a revision. Additional hourly review fees will be applicable to this revision review. 3.3 A drainage narrative describing the existing and proposed conditions and runoff patterns and complete documentation of all calculations and assumptions. This narrative shall be sealed by a registered professional. 3.4 All SWMP submittals must meet the requirements of this Ordinance and the provisions of the Stormwater Design Manual. A written narrative is required with the submittal stating that the drainage plans are in compliance with the provisions of this Ordinance and the Stormwater Design Manual. The PWO may require such additional information to be included in a drainage plan that is necessary to evaluate and determine the adequacy of the proposed drainage and water quality facilities. MOORESVILLE STORMW ATER MANAGEMENT ORDINANCE 16