The second ANOVA test was conducted to determine if site location had a statistically significant influence on the variability of the means of WQ parameters (Table 3). The results obtained from the ANOVA tests showed that
there were statistically highly significant differences in salinity, TDS, Na+, and TSS at the 1% level. Therefore, the null hypothesis for site location was rejected. TSS had relatively low values in the upstream zones of USC and MSC, and high concentrations in DSC. Salinity, TDS, and Na+ consistently had higher concentrations in the USC and MSC sites, and lower concentrations in DSC (Table 4). Figure 3 graphically shows the variation of parameters according to site location.