Grading, erosion control practices, sediment control practices, and waterway crossings shall meet the design criteria set forth in the most recent version of the Erosion and Sediment Control Manual, and shall be adequate to prevent transportation of sediment from the site to the satisfaction of the Village Engineer.
(A) Clearing and grading.
(1) Clearing and grading of natural resources, such as forests and wetlands, shall not be permitted, except when in compliance all other chapters of this code.
(2) Clearing techniques that retain natural vegetation and retain natural drainage patterns as described in the Erosion and Sediment Control Manual, shall be used to the satisfaction of the Village Engineer.
(3) Phasing shall be required on all sites disturbing greater than 30 acres, with the size of each phase to be established at plan review and as approved by the Village Engineer.
(4) Clearing, except that necessary to establish sediment control devices, shall not begin until all sediment control devices have been installed and have been stabilized.
(5) Cut and fill slopes shall be no greater than two to one, except as approved by the Village Engineer to meet other community or environmental objectives.
(B) Erosion control.
(1) Soil must be stabilized within five days of clearing or inactivity in construction.
(2) If vegetative erosion control methods, such as seeding, have not become established within two weeks, the Village Engineer may require that the site be reseeded, or that a non-vegetative option be employed. Numerical standards regarding the time to stabilization will vary. In particular, the time to establish seeding will depend on the climate.
(3) On steep slopes or in drainage ways, special techniques that meet the design criteria outlined in the Erosion and Sediment Control Manual shall be used to ensure stabilization.
(4) At the close of the construction season, the entire site must be stabilized, using a heavy mulch layer or another method that does not require germination to control erosion.
(5) Techniques shall be employed to prevent the blowing of dust or sediment from the site. Dust control is most important in arid regions of the country.
(6) Techniques that divert upland runoff past disturbed slopes shall be employed.
(C) Sediment controls.
(1) Sediment controls shall be provided in the form of settling basins or sediment traps or tanks and perimeter controls.
(2) Where possible, settling basins shall be designed in a manner that allows adaptation to provide long-term storm water management.
(3) Adjacent properties shall be protected by the use of a vegetated buffer strip, in combination with perimeter controls.
(D) Waterways and watercourses.
(1) When a wet watercourse must be crossed regularly during construction, a temporary stream crossing shall be provided and an approval obtained from all necessary county and state agencies having authority over the crossing.
(2) When in channel work is conducted, the channel shall be stabilized before, during and after work.
(3) All on-site storm water conveyance channels shall he designed according to the criteria outlined in the Erosion and Sediment Control Manual.
(4) Stabilization adequate to prevent erosion must be provided at the outlets of all pipes and paved channels.
(E) Construction site access.
(1) A temporary access road shall be provided at all sites.
(2) Other measures may be required at the discretion of the Village Engineer in order to ensure that sediment is not tracked onto public streets by construction vehicles, or washed into storm drains.
(Ord. 1971, passed 11-20-2008)