Table 1.

Instruments/methods used for water quality assessment.

Water quality Parameters assessed	Instruments/Method used	Indian standard Code
•Hardness	Titrimetric analysis in Laboratory	IS 3025 (P-20) (1983)
•Alkalinity	Titrimetric analysis in Laboratory	IS 3025(P-23) 1983
•Total dissolved solids	Gravimetric analysis	IS 3025(P-16) 1984
•Total Coliform	Colony Counter	IS:1622 1981 R-2003
•BOD	BOD incubator (model no. SONAR 8450)	IS 3025 (P-21)
•COD	COD digestion unit from Wealtech Corp. (model no. HB1)	IS 3025 (P-58)
•Dissolved oxygen	Winkler method (Titrimetric analysis)	IS 3025 (P-38)
•pH	Digital pH meter (Thermo fisher star A11)	IS 3025 (P-11) 1983