Item I The price bid for Item 1 shall cover furnishing and delivering a quantity of liquid ferric sulfate approximately equal to two hundred fifty thousand (250,000) pounds of pure (100%) water soluble ferric iron to the Algiers Water Plant. Item II The price bid for Item 2 shall cover furnishing and delivering a quantity of liquid ferric sulfate approximately equal to two million five hundred thousand (2,500,000) pounds of pure (100%) water soluble ferric iron to the Carrollton Water Plant. CHEMICAL AND PHYSICAL REQUIREMENTS The liquid ferric sulfate to be supplied as specified herein shall contain no substances or impurities in quantities capable of producing deleterious or injurious effects on the health of those consuming potable water that has been properly treated with liquid ferric sulfate.