The money paid and collected pursuant to this chapter shall be held by the City in a special fund to be expended only for the purpose of constructing, operating, managing, repairing, and maintaining all kinds of conduits, drains, storm water detention devices, flow impediments, ponds, ditches, sloughs, filter strips, rip-raps, erosion control devices, and any other things and activities useful to the proper control management, collection, drainage, and disposition of storm water in the City.