Drinking water is supposed to be safe for consumption by humans and animals. Water may be naturally safe, or it may need to be treated in order to be safe. Water which is not safe to drink can carry diseases and heavy metals.
Parameter
Range
pH
4 to 10
Alkalinity
10-200 & 100-2000 mg/l as CaCO3
Total Hardness
2-40, 5-100 mg/l as CaCO3
Fluoride
0.2–2.0, 0.5–5.0 mg/l as Fluoride
Nitrate
1.0, 2.5, 5, 7.5, 10, 20, 30, 40, 50 mg/l as NO3
Chloride
10–200 & 50–1000 mg/l as Chloride
Iron (Low Level)
0.05, 0.1, 0.3, 0.4, 0.7, 1.0, 1.5, 2.0 mg/l as Fe
Free Chlorine
0.1-2.0 mg/l as Chlorine
Turbidity
1, 5,10, 25 as NTU
