In lieu of the standby or availability charge authorized to be levied and collected pursuant to Section 31104, the Crescenta Valley County Water District may, pursuant to the notice, protest, and hearing procedures in Section 53753 of the Government Code, fix, levy, and collect a sewage and waste service standby or availability charge not to exceed sixty dollars ($60) per available sewer connection per year, unless the standby or availability charge is imposed pursuant to the Uniform Standby Charge Procedures Act (Chapter 12.4 (commencing with Section 54984) of Part 1 of Division 2 of Title 5 of the Government Code). If the procedures set forth in this section as it read at the time a standby charge was established were followed, the Crescenta Valley County Water District may, by an ordinance approved by a two-thirds vote of the members of the legislative body thereof, continue the charge pursuant to this section in successive years at the same rate. If new, increased, or extended assessments are proposed, the district shall comply with the notice, protest, and hearing procedures in Section 53753 of the Government Code.