Table 2.

Source water physical and chemical characteristics, Tanzania^*

Characteristic	Source 1: River	Source 2: Lake	Source 3: Tap	Source 4: Pond	Source 5: Open Well	Source 6: Borehole
Turbidity (NTU)	5.1	18.7	0.6	888.5	1.9	0.9
TOC (mg/L)	2	9.8	0.6	5.6	0.7	0.9
pH	7.8	7.8	7.5	7.7	7.3	7.4
Conductivity (μmhos/cm)	86	393	238	397	522	525
Free chlorine (mg/L)	BDL	BDL	0.17	BDL	BDL	BDL
Total chlorine (mg/L)	BDL	BDL	0.18	BDL	BDL	BDL

^*NTU = nephelometric turbidity units; TOC = total organic carbon; BDL = below detection limit.