S.N. Parameters Unit Test Methods 1 pH - pH meter 2 Dissolved Oxygen (DO) mg/L Winkler method 3 Biochemical Oxygen Demand (BOD) mg/L 5 days incubation at 20° C and titration of initial and final DO. 4 Chemical Oxygen Demand mg/L Open Reflux Method 5 Conductivity ms/cm Conductivity meter 6 Alkalinity mg/L Titration 7 Total dissolved Solids mg/L Digital conductivity meter (LT-51) 8 Chloride mg/L Argentometric titration 9 Orthophosphate (P043- — P) mg/L Ammonium molybdate ascorbic acid reduction method 10 Nitrate -Nitrogen (NO3 — N) mg/L Spectrophotometric  method 11 Ammonia-Nitrogen (NH3 — N) mg/L Spectrophotometric (Phenate method) 12 Total Hardness as CaCO3 mg/L EDTA titration 13 Fluoride mg/L Colorimetric Method 14 Iron mg/L Colorimetric Method

Table 1: List of Chemical parameters and their test methods.