(a) Whenever the construction of any water, stormwater or sanitary sewer improvement is initiated by petition pursuant to Kan. Stat. Ann. § 12-6a04, and amendments thereto, the governing body of the city may require the owners of property, which benefits from such water, stormwater or sanitary sewer improvement but which was not included within the original improvement district, to pay a benefit fee at the time the owners of such property request, by petition, to be served by such improvement.

The amount of such benefit fee shall not exceed the amount of the assessment, including principal and interest, which would have been levied against the property had it been included in the original improvement district. The benefit fee shall be assessed only against the property described in the petition requesting service by the water, stormwater or sanitary sewer improvement. Unless otherwise provided by the city, such benefit fee shall be due and payable at the time the property begins being served by the water, stormwater or sanitary sewer improvement, and shall be subject to the same interest, as assessments against property originally included in the improvement district for such water, stormwater or sanitary sewer improvement. Any benefit fees paid hereunder shall be applied: (1) To the remaining principal and outstanding interest on the bonds issued to finance the water, stormwater or sanitary water* improvement, with a resulting pro rata reduction of the assessments against property originally included in the improvement district for such water, stormwater or sanitary sewer improvement; or (2) the city general bond and interest fund if any of the cost of the water, stormwater or sanitary sewer improvement was paid by the city at large.

(b) Whenever the construction of any arterial street improvement is initiated by petition pursuant to Kan. Stat. Ann. § 12-6a04, and amendments thereto, the governing body of the city may require the owners of property, which benefits from such arterial street improvement but which was not included within the original improvement district, to pay a benefit fee at the time the owners of such property request, by petition, to construct a new street or improve an existing street that will be or is connected to such arterial street improvement and thereby benefited by such arterial street improvement. The amount of such benefit fee shall not exceed the amount of assessment, including principal and interest, which would have been levied against the property had it been included in the original improvement district. The benefit fee shall be assessed only against the property described in the petition requesting the construction of streets that will be connected to such arterial street improvement. Unless otherwise provided by the city, such benefit fee shall be due and payable at the conclusion of construction of the street improvement described in the petition, and shall be subject to the same interest, as assessments against property originally included in the improvement district for such arterial street improvement.

Any benefit fees paid hereunder shall be applied: (1) To the remaining principal and outstanding interest on the bonds issued to finance the arterial street improvement, with a resulting pro rata reduction of the assessments against property originally included in the improvement district for such arterial street improvement; or (2) the city general bond and interest fund if any of the cost of the arterial street improvement was paid by the city at large.

For purposes of this section, the term “arterial street” shall mean a street, boulevard, avenue or part thereof within the city or extending not more than three miles from the boundaries of the city, the primary function of which is, or shall be, the movement of through traffic between areas of concentrated activity within or without the city or the connection of one or more existing or proposed subdivisions within or without the city to other streets within the city.

The governing body of the city may designate, by resolution, all or any portion of a street or proposed street as an arterial street; such determination to be final and conclusive.

(c) The provisions of this act shall be supplemental to any legal authority cities may exercise in imposing hookup or connection fees or other user or regulatory charges for water, stormwater or sanitary sewer service. The amount of any hookup or connection fee imposed pursuant to this section shall not exceed the actual cost of connecting the property to the water, stormwater or sanitary sewer.