Standards for Drinking Water

Parameter	Unit	IFPDW Criteria
(Total) Coliforms MPN	MPN/100mL	-
(Total) Coliforms MF	CFU/100mL	-
(Total) Coliforms	/100mL	-
E.coli	/100mL	0
Group D (Faecal) Streptococci	/100mL	-
P.aeruginosa	/100mL	-
Faecal coliforms	/100mL	0
Enteric viruses	/100mL	-
Pathogenic protozoa	/100mL	-
Pathogenic helmints	/100mL	-
Algae	/100mL	-
Sulphide-reducing Clostridia	MPN/100mL	-
THPC 37° C	CFU/mL	10
THPC 22° C	CFU/mL	-

Turbidity	NTU	2.5
Colour	TCU	5
Odour	TON	3
PH	-	6.5-8.5
Conductivity	m S/cm	-
Arsenic	mg/L	0.05
Chloride	mg/L	250*
Iron	mg/L	0.3*
Manganese	mg/L	0.05*
Zinc	mg/L	5.0*
TDS	mg/L	1000*

Phenols	mg/L	To be
PAH	mg/L	Advised
Total THM	mg/L	Later
Bromate	mg/L

Antimony	mg/L	0.01
Barium	mg/L	1.0
Beryllium	mg/L	0.005
Cadmium	mg/L	0.005
Chromium	mg/L	0.1
Copper	mg/L	2.0
Cyanide	mg/L	0.1
Lead	mg/L	0.01
Mercury	mg/L	0.001
Nickel	mg/L	0.1
Nitrate-N	mg/L	10
Nitrite-N	mg/L	1
NO2+NO3–N	mg/L	10
Selenium	mg/L	0.05
Thallium	mg/L	0.002
Boron	mg/L	1.0
Molybdenum	mg/L	0.025
Sodium	mg/L	-
Calcium	mg/L	-
Magnesium	mg/L	-
Potassium	mg/L	-
Phosphorus (P2O5)	mg/L	-

Aluminium	mg/L	0.2
Silver	mg/L	0.2
Sulphate	mg/L	250*
Ammonia (NH4)	mg/L	-

Chlorine	mg/L	<0.1
Fluoride	mg/L	0.7