To replace outdated and substandard fire stations to improve emergency services and response times, upgrade training facilities and construct an emergency operations center to manage major disasters, shall the City of Riverside incur bonded indebtedness in an amount not to exceed $20,000,000, with interest at the statutory rate, to be repaid from ad valorem taxes levied annually at a rate which shall not exceed $12 per $100,000 of the full cash value of property?