(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 state’s Department of Natural Resources’ Erosion Control Handbook, and shall be adequate to prevent transportation of sediment from the site to the satisfaction of the town. Cut and fill slopes shall be no greater than two to one, except as approved by the town to meet other community or environmental objectives.
(B) Clearing and grading of natural resources, such as forests and wetlands, shall not be permitted, except when in compliance with all other chapters of this code. Clearing techniques that retain natural vegetation and drainage patterns, as described in the state’s Department of Natural Resources’ Erosion Control Handbook, shall be used to the satisfaction of the town.
(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) Erosion control requirements shall include the following.
(1) Soil stabilization shall be completed within five days of clearing or inactivity in construction.
(2) If seeding or another vegetative erosion control method is used, it shall become established within two weeks or the town may require the site to be re-seeded or a non-vegetative option employed.
(3) Special techniques that meet the design criteria outlined in the state’s Department of Natural Resources’ Erosion Control Handbook on steep slopes or in drainage ways shall be used to ensure stabilization.
(4) Soil stockpiles must be stabilized or covered at the end of each workday.
(5) The entire site must be stabilized, using a heavy mulch layer or another method that does not require germination to control erosion, at the close of the construction season.
(6) Techniques shall be employed to prevent the blowing of dust or sediment from the site.
(7) Techniques that divert upland run-off past disturbed slopes shall be employed.
(E) Sediment controls requirements shall include:
(1) Settling basins, sediment traps or tanks and perimeter controls;
(2) Settling basins that are designed in a manner that allows adaptation to provide long term storm water management, if required by the town; and
(3) Protection for adjacent properties by the use of a vegetated buffer strip in combination with perimeter controls.
(F) Waterway and watercourse protection requirements shall include:
(1) A temporary stream crossing installed and approved by the state’s Department of Natural Resources and the county’s Land Surveyor if a wet watercourse will be crossed regularly during construction;
(2) Stabilization of the watercourse channel before, during and after any in-channel work;
(3) All on-site storm water conveyance channels designed according to the criteria outlined in the state’s Department of Natural Resources’ Erosion Control Handbook; and
(4) Stabilization adequate to prevent erosion located at the outlets of all pipes and paved channels.
(G) Construction site access requirements shall include:
(1) A temporary access road provided at all sites; and
(2) Other measures required by the town in order to ensure that sediment is not tracked onto public streets by construction vehicles or washed into storm drains.
(Ord. 2029, passed 4-18-2006)