Supply of Treatment Ingredients for Potabilization of Raw Water divided into Six (06) lots (A Order): Lot No. 1: Alumina Sulphate Lot No. 2: Calcium Hypochlorite Lot No. 3: Lime 2 for purification Lot No. 4: Sea salts Lot No. 5 Polymer Lot No. 6: Antiscalant for reverse osmosis (EXPIRED)