A. 
All utility lines shall be located underground throughout the subdivision, in such a manner that the various service lines can be logically extended to adjacent areas and that such underground services do not adversely affect one another. Generally, gas, electric, telephone and CATV utility lines shall be buried a minimum of one foot below the finished grade, while water and sewer utility lines shall be a minimum of three feet below the finished grade. In addition, any support equipment required to be above ground (e.g., transformer boxes, vaults, etc.) shall be located in a safe and sightly manner. No utility line shall be placed such that it runs parallel within the area bordered by vertical planes located one foot inside and outside the curb and gutter lines.
B. 
Underground service connections to the property line of each platted lot shall be installed at the subdivider's expense; provided that, on the recommendation of the Plan Commission, the requirement for service connections to each lot may be waived in the case of adjoining lots to be retained in single ownership.
Utility easements, not less than 20 feet wide for sanitary sewers and water mains and not less than 15 feet wide for gas, electric, telephone, and cable television, shall be provided where necessary. Normally, in the case of abutting lots, an equal amount should be taken from each lot. Property owners may (at their own risk) plant shrubbery or hedges or install fences on the easement areas. Utilities (private and public), however, in order to have access for repair, shall have the election to destroy said improvements and restore the area only by grading and seeding, or to have alternate access through the owner's property.
Maintenance easements of not less than five feet in width shall be provided along all rear and side lot lines.
A. 
The trench width for installation of all water and sewer lines shall be a maximum of 1.5 foot greater than the outside diameter of the pipe being placed. Pipe shall be placed on bedding material of select material free of stones, frozen clods, or other materials likely to cause damage to the pipe material. The initial lift of backfill shall be select material free of stones, frozen clods, or other materials likely to cause damage to the pipe, placed such that uniform support of the pipe haunches is obtained and to a depth of 1/2 the diameter of the pipe. The next lift of backfill material shall again be select material free of stones, frozen clods, or other materials likely to cause damage to the pipe, placed for a minimum compacted depth of six inches above the top of the pipe. The remaining backfill shall be placed in compacted layers of approximately six-inch lifts.
B. 
Water or sewer lines which fall within the area bounded by an imaginary vertical plane located two feet outside the curb and gutter lines shall be backfilled with trench backfill as specified in Illinois Department of Transportation Section 208. Water and sewer lines consisting of nonferrous pipe materials shall require placing detector wires or tape such that the location of the line may be found using available metal-detecting equipment.