(A) Grading, erosion control practices, sediment control practices and waterway crossings shall meet the design criteria set forth in the most recent version of the city’s Stormwater Management Guidance Manual and shall be adequate to prevent transportation of sediment from the construction site to the satisfaction of the Public Works Department’s office.
(B) Clearing and grading of natural resources, such as protected habitats and wetlands, shall not be permitted, except when in compliance with the Stormwater Management Guidance Manual.
(C) Clearing, except to the extent necessary to establish sediment control devices, shall not begin until all sediment control devices have been installed and have been stabilized.
(D) Minimum erosion control requirements shall include:
(1) Temporary seeding must be applied if the construction site is idle for more than 21 days;
(2) Special techniques that meet the design criteria outlined in the Stormwater Management Guidance Manual on steep slopes or in drainage ways shall be used to ensure stabilization;
(3) Soil stockpiles must be stabilized or covered at all times;
(4) The entire construction site must be stabilized at the close of the construction season, which may include, but is not limited to, temporary seeding, mulching and the use of erosion controls;
(5) Techniques shall be employed to prevent the transportation of dust or sediment from the construction site; and
(6) Techniques shall be employed to divert upstream runoff away from LDA without causing any additional erosion.
(E) Minimum sediment control requirements shall include sediment basins, sediment traps and/or perimeter controls.
(F) Minimum waterway and watercourse protection requirements shall include:
(1) Approval of a waterway or watercourse crossing by all applicable federal and state agencies having jurisdiction, which may include, but is not limited to, the state’s Department of Natural Resources, United States Army Corps of Engineers and the United States Environmental Protection Agency;
(2) Stabilization of a watercourse before, during and after any in-channel work;
(3) All on-site stormwater conveyance channels designed according to the criteria outlined in the Stormwater Management Guidance Manual; and
(4) Stabilization adequate to prevent erosion located at the outlets of all pipes and paved channels.
(G) Construction site access requirements shall include establishment and maintenance of a stabilized construction site entrance as outlined in the Stormwater Management Guidance Manual.
(Ord. passed 10-4-2016)