(A) The erosion and sediment control plan shall accurately describe the potential for soil erosion and sedimentation problems resulting from land disturbing activity and shall explain and illustrate the measures that are to be taken to control these problems. The length in time and the complexity of the plan is to be commensurate with the size of the project, severity of the site condition, and potential for off-site damage. The plan shall be sealed by a qualified person.
(B) The plan shall also conform to the requirements found in the BMP manual as referenced in § 152.35, and shall include at least the following:
(1) Project description. Briefly describe the intended project and proposed land disturbing activity, including number of units and structures to be constructed and infrastructure required;
(2) A topographic map with contour intervals of five feet or less showing present conditions and proposed contours resulting from land disturbing activity;
(3) All existing drainage ways, including intermittent and wet-weather. Include any designated floodways or floodplains;
(4) A general description of existing land covers. Individual trees and shrubs do not need to be identified;
(5) Stands of existing trees as they are to be preserved upon project completion, specifying their general location on the property. Differentiation shall be made between existing trees to be preserved, trees to be removed, and proposed planted trees. Tree protection measures must be identified, and the diameter of the area involved must also be identified on the plan and shown to scale. Information shall be supplied concerning the proposed destruction of exceptional and historic trees in setbacks and buffer strips, where they exist. Complete landscape plans may be submitted separately;
(6) Approximate limits of proposed clearing, grading, and filling;
(7) Approximate flows and location of existing stormwater leaving any portion of the site;
(8) A general description of existing soil types and characteristics and any anticipated soil erosion and sedimentation problems resulting from existing characteristics;
(9) Location, size, and layout of proposed stormwater and sedimentation control improvements;
(10) Proposed drainage network;
(11) Proposed drain tile or waterway sizes;
(12) Approximate flows leaving site after construction and incorporating water runoff mitigation measures. The evaluation must include projected effects on property adjoining the site and on existing drainage facilities and systems. The plan must address the adequacy of outfalls from the development. When flows are concentrated, the plan must address the capacity of waterways, if any, accepting stormwater off-site; and what measures, including infiltration, sheeting into buffers, and the like, are going to be used to prevent the scouring of waterways and drainage areas off-site, and the like;
(13) The projected sequence of work represented by the grading, drainage, and sedimentation and erosion control plans as related to other major items of construction, beginning with the initiation of excavation and including the construction of any sediment basins or retention facilities or any other structural or non-structural BMPs;
(14) Specific remediation measures to control erosion and sedimentation runoff. Plans shall include detailed drawings of all control measures used; stabilization measures including vegetation and non-vegetation measures, both temporary and permanent, will be detailed. Detailed construction notes and a maintenance schedule shall be included for all control measures in the plan;
(15) Specific details for the construction of rock pads, wash-down pads, and settling basins for controlling erosion; road access points; eliminating or keeping soil, sediment, and debris on streets and public ways at a level acceptable to the County Planning and Zoning Department. Soil, sediment, and debris brought onto streets and public ways must be removed by the end of the work day by machine, broom, or shovel to the satisfaction of the County Planning and Zoning Department. Failure to remove the sediment, soil, or debris shall be deemed a violation of this chapter;
(16) Proposed structures; location (to the extent possible) and identification of any proposed additional buildings, structures, or development on the site; and
(17) Requirement that qualified personnel shall inspect disturbed areas of the construction site that have not been finally stabilized, structural control measures, and locations where vehicles or equipment enter or exit the site at least once every seven calendar days and within 24 hours of the end of a storm that is one-half inch or greater or equivalent snowfall.
(Res. O-62-9-06, passed 9-14-2006; Ord. O-134-12-19, passed 12-12-2019) Penalty, see §
152.99