2.15 River water quality Given the characteristics listed below for a "typical" river, determine the following parameters related to drinking water quality. The water temperature is 25C. Chapter 2 Water, Air, and Their Impurities (a) Total hardness (meq/L) (b) Carbonate hardness (meq/L) (c) Total dissolved solids (mg/L) (d) Alkalinity (meq/L) (e) Ionic strength (M) (f) pH (g) Check the electroneutrality balance