Laboratory Report

Full Analysis

Every molecule we could measure. Hover any row to read the explanation.All values from batch STHLM-2025-05-001, tested 2025-05-12 at Eurofins Environment Testing Sweden AB.

Stockholm municipal water is tested for 200+ parameters at Norsborg treatment plant. This report surfaces the 70 key health indicators most relevant to public health and EU regulatory compliance.

Within Limit
Trace (<0.01 μg/L)
Elevated
Exceeds Limit
Not Detected

Batch

STHLM-2025-05-001

Eurofins Environment Testing Sweden AB · SWEDAC 1125

Norsborg Water Treatment Plant, Stockholm

Physical Properties

8.1

Within Limit

Turbidity

wiki ↗

0.12NTU

Within Limit

Conductivity

wiki ↗

312μS/cm

Within Limit

Hardness

wiki ↗

6.4°dH

Within Limit

Temperature

wiki ↗

9.2°C

Within Limit

2mg/L Pt

Within Limit

ND

Within Limit

ND

Within Limit

Minerals & Ions

Calcium

wiki ↗

55mg/L

Within Limit

Magnesium

wiki ↗

4.2mg/L

Within Limit

Sodium

wiki ↗

14mg/L

Within Limit

Potassium

wiki ↗

2.1mg/L

Within Limit

Bicarbonate

wiki ↗

185mg/L

Within Limit

Chloride

wiki ↗

22mg/L

Within Limit

Sulfate

wiki ↗

31mg/L

Within Limit

Fluoride

wiki ↗

0.22mg/L

Within Limit

Nitrate

wiki ↗

2.1mg/L

Within Limit

Nitrite

wiki ↗

0.003mg/L

Within Limit

Phosphate

wiki ↗

0.018mg/L

Within Limit

Silica

wiki ↗

4.8mg/L

Within Limit

Heavy Metals

Lead (Pb)

wiki ↗

0.0008μg/L

Within Limit

Arsenic (As)

wiki ↗

0.0012μg/L

Within Limit

Cadmium (Cd)

wiki ↗

0.00021μg/L

Within Limit

Chromium (Cr)

wiki ↗

0.0088μg/L

Within Limit

Copper (Cu)

wiki ↗

0.042μg/L

Within Limit

Iron (Fe)

wiki ↗

12μg/L

Within Limit

Manganese (Mn)

wiki ↗

1.1μg/L

Within Limit

Mercury (Hg)

wiki ↗

0.00008μg/L

Within Limit

Nickel (Ni)

wiki ↗

0.0031μg/L

Within Limit

Zinc (Zn)

wiki ↗

0.18μg/L

Within Limit

Barium (Ba)

wiki ↗

18μg/L

Within Limit

Selenium (Se)

wiki ↗

0.31μg/L

Within Limit

Pharmaceuticals

Ibuprofen

wiki ↗

0.0041μg/L

Trace

Paracetamol

wiki ↗

0.0012μg/L

Trace

Diclofenac

wiki ↗

0.0031μg/L

Trace

Estradiol (E2)

wiki ↗

0.00021μg/L

Trace

Ethinylestradiol (EE2)

wiki ↗

0.000089μg/L

Trace

Carbamazepine

wiki ↗

0.0018μg/L

Trace

Metformin

wiki ↗

0.041μg/L

Trace

Atenolol

wiki ↗

0.0022μg/L

Trace

Caffeine

wiki ↗

0.018μg/L

Trace

Ciprofloxacin

wiki ↗

0.0003μg/L

Trace

Amoxicillin

wiki ↗

0.00019μg/L

Trace

Trimethoprim

wiki ↗

0.00081μg/L

Trace

Controlled Substances

Cocaine

wiki ↗

0.0018μg/L

Trace

Benzoylecgonine

wiki ↗

0.0089μg/L

Trace

Amphetamine

wiki ↗

0.00091μg/L

Trace

Methamphetamine

wiki ↗

0.00023μg/L

Trace

0.00041μg/L

Trace

THC-COOH

wiki ↗

0.0021μg/L

Trace

Heroin (6-MAM)

wiki ↗

0.000012μg/L

ND

Morphine

wiki ↗

0.00088μg/L

Trace

Fentanyl

wiki ↗

0.0000031μg/L

ND

Ketamine

wiki ↗

0.00019μg/L

Trace

Benzodiazepines

wiki ↗

0.00042μg/L

Trace

Lorazepam

wiki ↗

0.000088μg/L

Trace

Microbiological

E. coli

wiki ↗
0

ND

Within Limit

Enterococcus

wiki ↗
0

ND

Within Limit

Total Coliforms

wiki ↗
0

ND

Within Limit

Clostridium perfringens

wiki ↗

ND

Within Limit

Pseudomonas aeruginosa

wiki ↗

ND

Within Limit

Microplastics

Total microplastics

wiki ↗

1.2particles/L

Trace

Largest particle

wiki ↗

48μm

Trace

Polyethylene (PE)

wiki ↗

0.4particles/L

Trace

Polypropylene (PP)

wiki ↗

0.3particles/L

Trace

Polystyrene (PS)

wiki ↗

0.2particles/L

Trace

PFAS (Forever Chemicals)

0.00021ng/L

Within Limit

0.00018ng/L

Within Limit

0.00011ng/L

Within Limit

Total PFAS (Σ20)

wiki ↗

0.00088ng/L

Within Limit

Why we measure drugs

Since 2010, researchers at Stockholm University have monitored illicit drug use via wastewater analysis. Trace metabolites enter the water cycle through human excretion, survive partial treatment, and re-enter supply. Concentrations are measured in nanograms per litre — millions of times below any pharmacological effect. We publish them because they exist, and because the only dishonest thing would be to hide them.

Source: Fick et al., Stockholm University 2023; EMCDDA Wastewater Analysis

Stockholm tap water vs. bottled water

Stockholm tap water scores better than most European bottled water on heavy metals, nitrates, and microbiology. Bottled water is tested quarterly — tap water is tested daily. The only things you find in Stockholm tap water that you don't find in many premium brands are the compounds we bother to test for.

EU Drinking Water Directive 2020/2184

The new EU directive, fully transposed in Sweden from 2023, added PFAS, reduced lead limits from 10 to 5 μg/L, and introduced bisphenol A testing. Stockholm meets or exceeds all new parameters.