(F) Disconnections, reconnections, relocations, combined sewer overflow prevention, or sewer back-up prevention required under this section and performed by a contractor under contract with the property owner shall not be considered a public improvement, and those performed by the county shall be considered a public improvement as defined in section 4115.03 of the Revised Code. Disconnections, reconnections, relocations, combined sewer overflow prevention, or sewer back-up prevention required under this section performed by a contractor under contract with the property owner shall not be subject to competitive bidding or public bond laws.