CHEMICAL EXAMINATION OF PIPED WATER SUPPLY OF ILE-IFE IN SOUTHWEST NIGERIA

This study was undertaken to determine the changes in the physico-chemical properties of piped watersupplied in the state , between the treatment plant and points of use in lie-ife, nigeria. thirteen samples ofwater were collected at different locations from treatment plant to the points of use and analyzed for thefollow ing selected parameters: alkalinity, total dissolved solids , total suspended solid, total solid,potassium, sodium, calcium, magnesium , trace metals , sulphate and chloride. the results revealed thatbetween treatment plant at ede and the point of use, there are changes in the considered physico-chemicalproperties of the water supply.the most significant is the concentration oflead ion which was higher thanthe recommended 0.0 img/l by the world health organization and total alkalinity with a mean value of(325.36±8 1.85) mg/l. the stud y concluded that the treatment proc ess needs to be reviewed to identify thepossible source of the ion and put nece ssary prev ention procedures.