§ 10.7. Other requirements.

10.71

P ermanent Downstream Protection of Stream Banks and Channels. Provision shall be made for the permanent protection of off-site stream banks and channels from the erosive effects of increased velocity and volume of stormwater runoff resulting certain land disturbing activities.

10.711

A combination of storage and controlled release of stormwater runoff may be required for highway construction; commercial, industrial, educational, and institutional developments of one acre or more; and, for single-family developments of ten acres or more.

10.712

Detention, storage and controlled release will not be required in those instances where the person planning to conduct the activity can demonstrate that the stormwater release will not cause an increase in accelerated erosion or sedimentation of the receiving ditch, stream channel, or other drainage facility, taking into consideration any anticipated development of the watershed in question.

10.72

Borrow and Waste Areas. When the person conducting the land disturbing activity is also the person conducting the borrow or waste disposal activity, areas from which borrow is obtained shall be considered as part of the land disturbing activity where the borrow material is being used or from which the waste material originated. When the person conducting the land disturbing activity is not the person obtaining the borrow and/or disposing of the waste, these areas shall be considered a separate land disturbing activity.

10.73

Access and Haul Roads. Temporary access and haul roads, other than public roads, constructed or used in connection with any land disturbing activity shall be considered a part of such activity.

10.74

Operations in Lakes and Natural Watercourses. Land disturbing activity in connection with construction in, on, over, or under a lake or natural watercourse shall be planned and conducted in such a manner as to minimize the extent and duration of disturbance of the stream channel. The relocation of a stream, where relocation is an essential part of the proposed activity, shall be planned and executed so as to minimize changes in the stream flow characteristics, except when justification for significant alteration to flow characteristic is provided.