given data of water softened by excess lime treatment, sketch a meq/l, calculate the softening chemicals required in pounds per million gallons, and draw a bar graph for the softened water after re-carbonation and filtration, assuming that 80% of the alkalinity is in the bicarbonate form CO2=8.8 mg/l Alk(HCO3)=135 mg/l Ca=40.0 mg/l SO4=29.0 mg/l Mg=14.7 mg/l Cl=17.8 mg/l Na=13.7 mg/l