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Norrvatten (Görvälnverket) · Danderyd

Norrvatten

Water safety

Water safety
ParameterUnfiltered tap waterAllowed rangeFiltered
Free Chlorinemg CL2/lNot reported0.2 – 1—
Total Chlorinemg CL2/l0.048No limit0.01

General

General
ParameterUnfiltered tap waterAllowed rangeFiltered
Hardnessmg CaCO3/l105.380 – 459105.3
pH8.26.5 – 9.58.2
TurbidityNTU0.2≤ 40.02
ColorColor Units6≤ 156
ConductivityμS / cm256≤ 2,500256
TDSmg/l163.8estimated0 – 1,199163.8
Bicarbonatemg HCO3/l70No limit70

Pathogens

Pathogens
ParameterUnfiltered tap waterAllowed rangeFiltered
ClostridiumUFC/100ml0≤ 00
eColiUFC/100ml0≤ 00
BacteriasNMP/100ml0≤ 00
EnterococcusUFC/100ml0≤ 00

Chemical parameters

Chemical parameters
ParameterUnfiltered tap waterAllowed rangeFiltered
Cyanide totalμg CN/l0.67≤ 500.034
Fluoridemg F/l0.2≤ 1.50.06
Mercuryμg Hg/l0.1≤ 10.01
Nitritesmg NO2/l0.014≤ 0.10.006
Nitratesmg NO3/l1.3≤ 500.39

Minerals

Minerals
ParameterUnfiltered tap waterAllowed rangeFiltered
Magnesiummg/l4.9No limit4.9
Calciummg/l34No limit34
Potassiummg/l2.9No limit2.9
Chloridemg/l16≤ 25016

Metals

Metals
ParameterUnfiltered tap waterAllowed rangeFiltered
Aluminiumμg/l33≤ 20033
Antimonyμg/l0.12≤ 50.12
Arsenicμg/l0.28≤ 100.14
Cadmiumμg/l0.004≤ 50.004
Chromiumμg/l0.11≤ 500.11
Copperμg/l20≤ 2,0001
Ironμg/l34≤ 20034
Manganeseμg/l2.1≤ 502.1
Leadμg/l0.12≤ 100.006
Nickelμg/l1.6≤ 201.6
Seleniumμg/l0.5≤ 100.5
Sodiummg/l13≤ 20013

Chlorine by-products

Chlorine by-products
ParameterUnfiltered tap waterAllowed rangeFiltered
Total Trichloroethyleneμg/l2≤ 100.1
Total Trihalomethanesμg/l4≤ 1000.2

Haloacetic acids

Haloacetic acids
ParameterUnfiltered tap waterAllowed rangeFiltered
Total haloacetic acidsμg/l1.41≤ 600.071

Perfluorinated chemicals

Perfluorinated chemicals
ParameterUnfiltered tap waterAllowed rangeFiltered
Total PFASug/LNot reported≤ 0.1—
PFAS 4ng/l3.1≤ 40.31
PFAS 21ng/l9≤ 1000.9

Other

Other
ParameterUnfiltered tap waterAllowed rangeFiltered
Ammoniamg/l0.017No limit0.005
Sulfatemg/l50No limit50

Data collected from the water utility for your area. Quality ranges are based on WHO guidelines, the EU Drinking Water Directive and the Swedish Food Agency's regulations (LIVSFS 2022:12).