(A) Inspection. The permit shall only be fully implemented after the perimeter/outfall protection inspection has been performed and any corrective actions have been implemented by the permittee and accepted by the county.
(B) Permit. The person shall obtain from the county a permit prior to the initiation of any land-disturbing activities that result in the disturbance of one acre or more of land.
(C) Permittee acknowledges county’s right. By accepting the permit, the permittee acknowledges that the county has the right to perform inspections of the project site.
(D) Permit application. The permittee shall complete a permit application that includes a stormwater pollution prevention plan (SWPPP) to be completed, sealed and signed by a licensed professional engineer and/or land surveyor as appropriate and submitted to the County Engineer.
(E) Plan elements. The plan shall include and/or address the following elements:
(1) Area vicinity map showing current zoning, adjoining property owners and street lines within 100 feet of the project boundaries all drawn at a scale not greater than one inch equals 2,000 feet;
(2) North arrow and its basis;
(3) Legend explaining symbols and abbreviations used on the plan;
(4) Do not disturb limits for construction activity indicated by a heavy dashed line and labeled as such;
(5) Boundary of site defined by bearings and distances and indicated by a heavy solid line;
(6) Drawing is at a scale not greater than one inch equals 100 feet. In the case of an unusually large development, a scale of one inch equals 200 feet may be acceptable;
(7) Acreage of the total site and acreage of the project site (if different);
(8) Benchmark location(s), description(s) and elevation(s) at sea level;
(9) Basis of elevation datum;
(10) Name, address and telephone number of the owner, developer, permittee and project engineer;
(11) Existing and proposed topography at two-foot contour intervals;
(12) Mapping accuracy shall conform to national standards of mapping;
(13) Location of sinkholes, streams, known springs and watercourses;
(14) Location of any existing buildings or structures;
(15) Location of any pertinent utilities, sanitary sewers, water and stormwater facilities on the property or within 100 feet of the site;
(16) Elevations, dimensions, locations and the extent of all planned grading indicated with proposed contours;
(17) A grading plan for borrow pits, quarries and material-processing facilities based on the findings and evaluation of the County Conservation District soil site investigations report or any other investigation report;
(18) Design details of temporary and permanent structural controls;
(19) Approximate location of the 100-year floodplain or a statement by a professional engineer or professional land surveyor that the site is not located in an area subject to flooding. The basis for this determination shall be shown;
(20) A detailed quantity estimate for stormwater management controls and measures;
(21) Identification of perimeter controls at outfalls and areas where construction site drainage leaves the property boundary or disturbed area(s);
(22) Arrows indicating drainage flow patterns;
(23) Location, dimensions, detailed specifications and construction details of all temporary and permanent stormwater quality measures;
(24) Temporary stabilization plans and sequence of implementation;
(25) Permanent stabilization plans and sequence of implementation;
(26) Anticipated construction sequence describing the relationship between implementation of stormwater quality measures and stages of construction activities;
(27) Anticipated inspection and maintenance requirements for permanent and temporary measures. This shall include the expected frequency of routine inspections and maintenance activities such as removal of sediment and waste concrete; and
(28) Management practices or other controls to address the following:
(a) Waste concrete management;
(b) Material delivery, handling and storage;
(c) Sanitary/septic waste management;
(d) Solid waste/trash and debris management;
(e) Vehicle and equipment cleaning, fueling and maintenance;
(f) Sensitive and vegetated area preservation;
(g) Dewatering operations;
(h) Contaminated soil management as defined and approved by the State Divisions of Water and Waste Management;
(i) Hazardous materials and waste management as defined and approved by the State Divisions of Water and Waste Management; and
(j) Pesticides, herbicides and fertilizer use.
(F) Plan revisions. The permittee shall notify the county in writing of any substantial field changes made to the approved stormwater plan. Changes made to the plan must be approved by the county.
(G) Plan review and permit issuance. The county shall review the SWPPP within 14-calendar days from date of submission and issue or deny the requested permit. Failure to do so will allow the person to proceed with land-disturbing activities in accordance with BMPs and the submitted SWPPP.
(H) Requirements for individual lots.
(1) Although a separate stormwater permit is not required for individual lots disturbing less than one acre within a larger permitted project, a building permit is required.
(2) All stormwater management measures necessary to comply with this chapter must be implemented in accordance with the permitted plan for the larger project.
(3) The individual permittee is responsible for the installation and maintenance of all erosion prevention and sediment control measures until the site is stabilized.
(4) The permittee, whether owning the property or acting as the representative of the property owner, shall submit to the county the following information for review and approval prior to the issuance of a building permit:
(a) Dimensions, elevations, drainage patterns and swales, and location of existing buildings and natural features that are pertinent to this chapter;
(b) Proposed drainage patterns;
(c) Location of the construction access to the site; and
(d) Location of perimeter erosion and sediment control measures prior to land disturbance.
(5) Temporary erosion prevention and sediment control measures may be removed for completion of the finish grade. Permanent stabilization to include either sod or mulched-seeding as appropriate for seasonal conditions shall be completed within 14 days of removal of temporary erosion prevention and sediment control measures.
(I) Stormwater permit termination.
(1) The permittee shall submit a notice of permit termination letter to the county.
(2) Written acceptance of site conditions shall be made by the county based upon an inspection.
(3) The county shall consider whether conditions are sufficient, appropriate and consistent with the stormwater plan.
(4) A permit shall be considered open and active until the county accepts the site conditions and after the following as-built requirements have been completed:
(a) All temporary erosion and sediment control measures have been removed;
(b) The remaining, undeveloped acreage that was subject to the permit does not exceed five acres. Furthermore, the remaining five or more acres is not composed of portions that abut to sum one acre or more;
(c) The designed public utilities are installed and have been inspected by the appropriate agencies;
(d) The street(s) have been constructed and the binder course of pavement has been placed in accordance with the standards in the subdivision regulations;
(e) The remaining undeveloped acreage that was subject to the permit does not pose a significant threat to the integrity of the infrastructure, adjacent properties or stormwater quality;
(f) All permanent stormwater quality measures have been implemented and are operational at the designed levels;
(g) Pipes, channels, catch basins, stormwater quality treatment devices and other drainage features are clear of sediment, obstructions and debris, and are operating as designed and appropriate for final site conditions;
(h) Disturbed slopes are stabilized; and
(i) Detention and retention basins are stabilized at designed volumes and conditions.
(J) As-built requirements.
(1) Prior to the final bond release, the permittee shall furnish to the county appropriately modified construction plans or as-built drawings prepared by a professional engineer certifying that final conditions are consistent with, or exceed, the stormwater permit provisions.
(2) This does not apply for individual residential lot development.
(Ord. 05-830-326, passed 12-20-2005)