Efficiency of Treatment Plant and Drinking Water Quality Assessment from Source to Household, Gondar City, Northwest Ethiopia

Table 3

Mean ± SD of water treatment plant efficiency for selected parameters in Gondar city, Northwest Ethiopia, June 30 to August 30, 2020.

Parameters	Inlet	Outlet	Removal efficiency (%)
Turbidity (NTU)	84.3	4.68	94.4
TDS (mg/L)	245.7	62.3	74.6
Fluoride (mg/L)	2.7	2.07	23.3
Total hardness (mg/L)	310.7	147.7	52.5
Total alkalinity (mg/L)	138.7	75.7	45.4
Nitrate (mg/L)	76.7	8.7	88.7
Sulphate (mg/L)	139.7	65.3	53.3
Phosphate (mg/L)	90.3	42.77	52.6
Iron (mg/L)	1.2	0.5	58.33
Manganese (mg/L)	2.3	0.28	87.8
TC (CFU/100 mL)	120.2	10.1	91.6
FC (CFU/100 mL)	50.2	0.49	99
Average (%) efficiency	—	—	68.5

The parameter was significant in removal efficiency at . TDS = total dissolved solid, TC = total coliform, and FC = faecal coliform.