Chemical Composition of Water


Identifiable parameter	Test results	Permissible value *	Units	Codes and standards for methods
Iodine	1,1 ± 0,3	0,125	mg/L	MUK 4.1.2223
Organoleptic parameters
Turbidity	<1,0	2,6	FMU	GOST R 57164-2016 (at 530 nm)
Color value	4,10	20	degree	GOST 31868-2012 (Method B)
Scent	0	2	point	GOST R 57164-2016
Cations
Magnesium	23,5	—	mg/L	TsV 3.18.05-2005
Calcium	59,4	—	mg/L	TsV 3.18.05-2005
Manganese	0,104	0,1	mg/L	TsV 3.18.05-2005
Iron	0,085	0,3	mg/L	TsV 3.18.05-2005
Potassium	12,4	—	mg/L	TsV 3.18.05-2005
Sodium	755	200	mg/L	TsV 3.18.05-2005
Aluminum	<0,005	0,5	mg/L	TsV 3.18.05-2005
Ammonium ions	0,380	2	mg/L	PND F 14.1:2:4.276-2013 (issued in 2013)
Lithium	0,166	0,03	mg/L	ЦВ 3.18.05-2005
Heavy metals and metalloids
Mercury	<0,00001	0,0005	mg/L	RD 52.24.479-2008
Vanadium	<0,0001	0,1	mg/L	TsV 3.18.05-2005
Barium	0,820	0,1	mg/L	TsV 3.18.05-2005
Beryllium	<0,0001	0,0002	mg/L	TsV 3.18.05-2005
Boron	0,603	0,5	mg/L	GOST 31949-2012

Molybdenum	<0,0001	0,25	mg/L	TsV 3.18.05-2005
Cobalt	<0,0001	0,1	mg/L	TsV 3.18.05-2005
Silver	<0,0001	0,05	mg/L	TsV 3.18.05-2005
Zinc	0,003	5	mg/L	TsV 3.18.05-2005
Nickel	<0,0001	0,1	mg/L	TsV 3.18.05-2005
Silicon	2,69	10	mg/L	PND F 14.1:2:4.215-06 (issued in 2011)
Chromium	<0,0001	—	mg/L	TsV 3.18.05-2005
Strontium	1,12	7	mg/L	TsV 3.18.05-2005
Cadmium	<0,0001	0,001	mg/L	TsV 3.18.05-2005
Arsenic	<0,0001	0,05	mg/L	TsV 3.18.05-2005
Copper	<0,001	1	mg/L	TsV 3.18.05-2005
Lead	<0,0001	0,03	mg/L	TsV 3.18.05-2005
Anions
Sulfate-ion	6,47	500	mg/L	PND F 14.1:2:4.132-98 (issued in 2008)
Chloride-ion	>1000	350	mg/L	PND F 14.1:2:4.132-98 (issued in 2008)
Nitrate-ion	<0,1	45	mg/L	PND F 14.1:2:4.132-98 (issued in 2008)
Hydrocarbonate-ion	207	—	mg/L	GOST 31957-2012 (Method A.2. Technology 1)
Carbonate-ion	<6,0	—	mg/L	GOST 31957-2012 (Method A.2. Technology 1)
Nitrite-ion	<0,1	3	mg/L	PND F 14.1:2:4.132-98 (issued in 2008)
Phosphate-ion	<0,1	3,5	mg/L	PND F 14.1:2:4.132-98 (issued in 2008)
Fluoride-ion	1,58	1,5	mg/L	PND F 14.1:2:4.132-98 (issued in 2008)
Composite parameters
pH	7,48	6,0-9,0	pH units	RD 52.24.495-2017
Hardness	4,90	7	mg-eq/L	RD 52.24.495-2017
Oxygen required	3,39	5	mg/L	PND F 14.1:2:4.154-99 (issued in 2012)
Oil products	<0,02	0,1	mg/L	PND F 14.1:2:4.168-2000 (issued in 2017)
Hydrogen sulfide	<0,002	0,003	mg/L	PND F 14.1:2:4.178-02 (issued in 2010)
Free alkalinity	<0,1	–	mmol/l	GOST 31957-2012 (Method А.2)
Total alkalinity	3,39	–	mmol/l	GOST 31957-2012 (Method A.2. Technology 1)
Sulfides	<0,002	–	mg/L	PND F 14.1:2.109-97
Dry residue	2335	1000	mg/L	PND F 14.1:2:4.261-2010 (issued in 2015)
Conductivity	3910	–	μSm/cm	RD 52.24.495-2005

* Health and hygiene rules and standards SanPiN 2.1.4.1074-01 Potable water. Hygienic requirements to quality of water from non-public water supply systems. Quality control. Hygienic requirements to hot water supply system safety