The Village Board, on the recommendation of appropriate agencies of the Village, shall require utility easements for poles, wire, conduits, storm and sanitary sewers, gas, water and head mains or other utility lines. It is the interest of this chapter to protect all established easements so as to assure proper grade, assure maintenance of the established grade, prohibit construction of permanent fences or retaining walls over underground installation and prevent the planting of trees in the easement area.
Where a subdivision is traversed by a watercourse, drainageway, channel or stream:
A. 
There shall be provided a stormwater easement or drainage right-of-way conforming substantially to the lines of such watercourse and such further width or construction, or both, as will be adequate for the purpose and as may be necessary to comply with this section; or
B. 
The watercourse, drainageway, channel or stream may be relocated in such a manner that the maintenance of adequate drainage will be assured and the same provided with a stormwater easement or drainage right-of-way conforming to the lines of the relocated watercourse and such further width or construction, or both, as will be adequate for the purpose and may be necessary to comply with this section.
C. 
Wherever possible, it is desirable that drainage be maintained by an open channel with landscaped banks and adequate width for maximum potential volume flow. In all cases, such watercourse shall be of a minimum width established at the high-water mark or, in the absence of such specification, not less than 30 feet.
Such easements shall be at least 12 feet wide and may run across lots or alongside of rear lot lines. Such easements should preferably be located along rear lot lines. Evidence shall be furnished the Village Board that easements and any easement provisions to be incorporated in the plat or in deeds have been reviewed by the individual utility companies or the organization responsible for furnishing the services involved.