§ 159.06  DESIGN REQUIREMENTS.
   (A)   Any permitted land disturbance operation shall meet the design criteria set forth in the most recent version of the City of Ashland’s Storm Water Manual, and shall be adequate to prevent erosion and control sediment from the site to the satisfaction of the Department of Public Services. Cut and fill slopes shall be no greater than 3:1, except as approved by the Department of Public Services to meet other community or environmental objectives.
   (B)   Clearing and grading of natural resources, such as forests and wetlands, and other natural features of concern shall not be permitted, except when in compliance with all sections of this chapter as well as any regional, state and federal regulation. Clearing techniques that retain natural vegetation, drainage patterns, and buffers along streams as described by the Storm Water Manual, shall be used to the satisfaction of the Department of Public Services.
   (C)   Clearing, except that necessary to establish sediment control devices, shall not begin until all sediment control devices have been installed and have been stabilized.
   (D)   Phasing shall be required on all sites disturbing over 50 acres, with the size of each phase to be established at plan review and as approved by the Department of Public Services.
   (E)   Erosion prevention BMP requirements:
      (1)   Soil stabilization shall be completed within 14 days of final grade work. If an area is left inactive for 21 days or more, the area shall have temporary stabilization.
      (2)   If seeding or other vegetative erosion prevention methods are used, vegetation shall become established within three weeks. If a satisfactory stand of vegetation is not established, the Department of Public Services may require the site to be reseeded or a non-vegetative option employed.
      (3)   Special techniques such as rip rap, turf reinforcement, armoring, and other methods that meet the design criteria outlined in the Storm Water Manual on steep slopes or in drainage ways shall be used to ensure stabilization.
      (4)   Soil stockpiles must be stabilized or covered and/or have sediment control measures in place to control sediment movement. Stockpiles shall have temporary vegetation established if they are going to be left for 21 days or more.
      (5)   During the winter months, at the close of the construction season, when no construction is going on, the entire site must be stabilized, using a heavy mulch layer or other methods that do not require germination to control sediment and prevent erosion.
      (6)   Minimize clearing and grading to the smallest possible area. Preserve existing vegetation and trees to the maximum extent possible.
      (7)   Areas to be left undisturbed during construction shall be clearly noted and delineated on the plan.
      (8)   Vegetative buffer strips in combination with other perimeter controls shall be used for the protection of adjacent properties, watercourses, and rights of way.
      (9)   Measures shall be implemented to control sedimentation deposits into drainage structures and features, receiving water bodies, natural karst features, roads, rights-of-way, and adjacent properties.
   (F)   Sediment control BMP requirements:
      (1)   Dust control techniques shall be employed to prevent the blowing of dust by air movements during land disturbance, demolition, and other construction activities.
      (2)   Diversion of upland runoff past disturbed slopes shall be implemented when necessary.
      (3)   Settling basins, sediment traps, tanks and/or perimeter controls shall be implemented as required by the Storm Water Manual to control sediment.
      (4)   Effective debris and trash management shall be required. At a minimum, the following shall be met:
         (a)   Implementing waste management practices and disposal of wastes including a designated waste collection area on site that does not drain directly to a waterway, ensuring storage containers have lids, regular scheduled waste collection (daily, weekly, and the like) to prevent overfilling, cleaning up spills immediately and disposal of construction site waste at authorized landfills or disposal areas. Concrete trucks must wash out on the job site and the runoff not allowed to drain onto public streets or into the storm water collection system.
         (b)   Disposal plan for hazardous materials that may be utilized during construction in accordance with local and state solid waste regulatory agencies.
   (G)   Waterway, watercourse, ephemeral stream and public storm drain protection requirements shall include the following:
      (1)   A temporary stream crossing installed and approved by the Kentucky Division of Water and the Department of Public Services if a watercourse will be crossed regularly during construction.
      (2)   Stabilization of the watercourse channel before, during, and after any in-channel work.
      (3)   Design of all on-site storm water conveyance channels in accordance with criteria outlined in the Storm Water Manual.
      (4)   Stabilization adequate to prevent erosion located at the inlets and outlets of all pipes and paved channels.
   (H)   Construction site access requirements designed to minimize the deposit of sediment or other materials on public streets and rights-of-way shall include:
      (1)   Continuous access via a stabilized rock entrance, constructed in accordance with the city’s Storm Water Manual.
      (2)   A tire wash rack may also be required by the Department of Public Services.
(Ord. 39-2005, passed 3-17-05)  Penalty, see § 159.99