TABLE 1.

Physicochemical and microbiological parameters measured at different treatment units for drinking water.

Samples	Temperature (°C)	pH	Turbidity (NTU)	DO (mg/L)	ATP (10–8 mol/L)	HPC (CFU/ml)	TOC (mg/L)	CODMn (mg/L)	TN (mg/L)
A	28.50 ± 0.26	7.63 ± 0.02	69.43 ± 2.29	6.31 ± 0.12	9.05 ± 0.02	3.11 × 104	<0.5	1.49 ± 0.31	0.05 ± 0.01
B	27.10 ± 0	7.66 ± 0.02	69.47 ± 1.54	5.89 ± 0.22	4.11 ± 0.43	2.51 × 104	<0.5	1.20 ± 0.12	0.04 ± 0.00
C	27.23 ± 0.06	7.88 ± 0.02	2.62 ± 0.12	6.99 ± 0.06	3.05 ± 0.01	2.50 × 103	<0.5	0.70 ± 0.02	<0.02
E	27.53 ± 0.06	8.16 ± 0.01	2.62 ± 0.12	6.31 ± 0.09	1.84 ± 0.31	2.80 × 103	<0.5	0.32 ± 0.01	<0.02
F	27.53 ± 0.06	8.07 ± 0.04	0.41 ± 0.05	6.89 ± 0.02	0.19 ± 0.06	0	<0.5	0.23 ± 0.02	<0.02
G	27.90 ± 0.04	7.93 ± 0.02	0.42 ± 0.02	6.46 ± 0.08	0.19 ± 0.06	10	<0.5	0.31 ± 0.03	<0.02

A, raw water; B, flocculation tank effluent; C, sedimentation tank effluent; E, sand filter effluent; F, chlorine-disinfected water; G, tap water.