Specifications include, but are not limited to: Chemicals are to be delivered on an as-needed basis to the City of Tucson within two days of order by the operations staff including weekends and holidays, unless otherwise agreed upon at time of order. Sodium hypochlorite solution deliveries are expected to be required twice each week, including weekends and holidays, with the possibility of being required three times per week during high-demand periods. Minimum order quantities will be: i. minimum of 4,000 (four thousand) gallons of 20% sodium hydroxide ii. minimum of 3,500 (three thousand five hundred) gallons of 12% sodium hypochlorite iii. minimum of 2 (two) buckets (55-lb. buckets) of calcium hypochlorite tablets