The purpose of this report is to request authority to amend Blanket Contract 47025391 issued to UBA Inc. (UBA) as a result of Request for Quotation Doc4230041922 for the non-exclusive supply and delivery of sodium hypochlorite, in the amount of $4,005,000 net of all applicable taxes and charges ($4,075,488 net of Harmonized Sales Tax recoveries). The amendment is being requested due to an increase in sodium hypochlorite usage due to significant rain events causing higher than usual wastewater flows. Furthermore, the estimated quantities used for the above mentioned solicitation were based on previous order history and an anticipated decrease in usage at the Ashbridges Bay Treatment Plant. However, due to delays in the operation of the new Trojan Ultra-Violet disinfection system, this anticipated decrease did not occur. To ensure a continuous supply of sodium hypochlorite, an increase in the contract value is required. The amendment requested includes an increase to the current contract target value and the four (4) option year periods. The total amount being requested is $4,005,000 net of all applicable taxes ($4,075,488 net of Harmonized Sales Tax recoveries), increasing the total potential contract target value from $24,638,608 to $28,643,608 net of all applicable taxes ($32,367,277 including all taxes and charges, $29,147,736 net of Harmonized Sales Tax recoveries).