The Israeli Ministry of Health recommends that the concentration of Ca in DSW should fall within the range of 32 -48 mg L -1 (as Ca 2+ ), while in water desalinated from brackish water wells, the dissolved calcium concentration should not be less than 20 mg L -1 (as Ca 2+ ). However, this document does not establish the minimal concentration values for Mg and iodine . It may be concluded that DSW produced in Israel by SWRO technology complies with the main chemical parameters specified (Ca concentration, hardness, pH), but still contains a very low concentration of Mg and a trace concentration of iodine, which should raise public health concerns.