Function   1 2 pH 0.789 0.655 BOD -0.006 -0.362 COD 0.477 -0.257 TS -0.325 0.558 TDS -0.321 0.425 Chloride 0.217 0.061 TSS 0.197 -0.243 Nitrate 0.800 0.061

Table 8: Standardized canonical discriminant function coefficients of temporal variation of untreated wastewater.