Abstract The measurement data of the raw water quality Tigris River were statistically analyzed to measure salinity value in relation selected parameters. collected from five treatment plants (WTPs) assembled alongside Baghdad: Al-Karkh, Al-Karama, Al-Qadisiya, Al-Dora, and Al-Wihda for period 2015 2021. parameters are total dissolved solid (TDS), electrical conductivity (EC), pH temperature. m...