(A) Any construction that meets one of the following thresholds shall require a Class 3 grading and drainage permit:
(1) Any construction that will include the addition of an impervious surface area (for example, streets, roof, patio, or parking area, or any combination thereof) greater than one acre (43,560 square feet); and
(2) Any land disturbing activity (for example, clearing, grading, stripping, excavation, fill, or any combination thereof) that will affect an area greater than one acre (43,560 square feet).
(B) A completed application form shall include:
(1) Name(s), address(es), and telephone numbers of the owner and developer of the site, the contractor(s), and of any consulting firm retained by the applicant identifying the principal contractor;
(2) Certification that any land clearing, construction, or development involving the movement of earth shall be in accordance with the plans approved upon issuance of the permit;
(3) An application fee as set may be required by the county, or its designees;
(4) A faithful performance bond or bonds, letter of credit, or other improvement security satisfactory to the Zoning and Building Director, or his or her designees, in an amount deemed sufficient by the Zoning and Building Director, or his or her designee, to cover all costs of improvements, landscaping, maintenance of improvements and landscaping, and soil erosion and sediment control measures for such period as specified by the Zoning and Building Director, or his or her designees, to cover the cost of failure or repair of improvements installed on the site on a form acceptable to the Zoning and Building Director, or his or her designees. Upon satisfactory completion of the improvements, the documented security would be void;
(5) The following information shall be submitted for both existing and proposed property conditions for all applicable developments: a topographic survey of the property at two-foot contours (or one-foot contours for relatively flat areas where additional detail will be required to see drainage designs) unless otherwise specified or approved by the Zoning and Building Director, or his or her designees, keyed to a consistent datum specified by the Zoning and Building Director, or his or her designees; and an existing drainage and proposed drainage plan for the property and 100 feet surrounding the property at a scale of not more than 100 feet to one inch, and including the following (unless otherwise specified by the Zoning and Building Director, or his or her designees):
(a) Property boundary, dimensions, and approximate acreage;
(b) Building setback lines;
(c) All existing and proposed structures and sizes;
(d) Square feet of existing and proposed impervious surface;
(e) All existing, or proposed easements;
(f) All existing, abandoned, or proposed water or monitoring wellhead locations;
(g) All existing, abandoned, or proposed water mains;
(h) All sanitary or combined sewer lines and septic systems;
(i) The banks and centerline of streams and channels;
(j) Shoreline of lakes, ponds, and detention basins with normal water level elevation;
(k) Farm drains and tiles;
(l) Location, size, and slope of stormwater conduits and drainage swales;
(m) Detention facilities;
(n) Roads, streets, and associated stormwater inlets including finished grades;
(o) Base flood elevation, flood fringe, and regulatory floodway;
(p) A vicinity map showing the relationship of the site to its general surroundings at a scale of not less than 2,000 feet to one inch;
(q) Title, scale, north arrow, legend, seal of licensed professional engineer, date, and name of person preparing plans;
(r) Sub-watershed boundaries within the property;
(s) Abandoned mines; and
(t) Soil classifications.
(6) The following certifications and design statements shall be provided:
(a) Basis of design for the final drainage system components;
(b) A statement giving any applicable engineering assumptions and calculations;
(c) A statement by the design engineer of the drainage system’s provision for handling events greater than the 100-year, 24-hour runoff;
(d) Design calculations and other submittals as required by this chapter; and
(e) A statement of certification of all drainage plans, calculations, and supporting data by a licensed professional engineer.
(7) A depiction of environmental features of the property and immediate vicinity including the following:
(a) The limits of designated regulatory and non-regulatory wetland areas;
(b) The location of trees greater than eight inches in diameter in areas to be disturbed;
(c) Any designated natural areas or prime farmland; and
(d) Any proposed environmental mitigation features.
(8) Any and all local, state, or federal maps marked to reflect any proposed change in the floodway delineation, base flood, or 100-year frequency flood elevation will change due to the proposed project;
(9) Conditional approval by FEMA or other regulatory agencies of the proposed changes in the floodway map that have been made if the floodway delineation, base flood, or 100-year frequency flood elevation will change due to the proposed project;
(11) If the project involves channel modification, the following information shall be submitted:
(a) A discussion of the purpose and need for the proposed work;
(b) Discussion of the practicability of using alternative locations or methods to accomplish the purpose of the proposed work;
(c) Analysis of the impacts of the proposed project, considering cumulative effects on the physical and biological conditions of the body of water affected; and
(d) Additional information as required by this chapter.
(12) Stormwater pollution prevention plan (SWP3) prepared in accordance with § 152.250 through 152.259.
(Ord. passed - -)