Figure 8: a) A significant positive correlation between TDS level (mg/L) and BOD concentration (mg/L) (r=0.9408, t= 6.706 & *P < 0.05), b) A significant positive correlation between TDS level (mg/L) and COD concentration (mg/L) (r=0.8667, t= 4.22 & *P < 0.05).