NDỤMỌDỤ NDỊ NA-ECHICHE: Turbidity Chlorine dioxide pH Ngụkọta Nitrogen Manganese Aluminom Cyanide Sulfide Chroma Mkpokọta chlorine COD Amonia nitrogen Chlorine na-arụ ọrụ Fluoride Nitrate nitrogen Chromium hexavalent Chlorine efu Chlorite Mkpokọta phosphorus Ígwè Ozone Chloride Oxyzen na-arụ ọrụ