Prague

Bohemian rock and the city that invented meth.

Želivka reservoir (Bohemian Massif, 75%) — Pražská vodohospodářská společnost (PVK); supplemented by central Bohemian groundwater. Proterozoic and Paleozoic metasediments — Bohemian Massif. Protected watershed in Bohemian-Moravian Highlands. Relatively low mineral content crystalline basement rock.

7.2°dH

Hardness

44 mg/L

Calcium

Political grade

Drug traces

Cocaine 0.0022 μg/L —Benzoylecgonine 0.0088 μg/L —Amphetamine 0.0012 μg/L —Methamphetamine 0.00048 μg/L —Metformin 0.038 μg/L —Caffeine 0.018 μg/L —Ibuprofen 0.0038 μg/L —Hardness 7.2°dHpH 7.4Calcium 44 mg/LNitrate 8.8 mg/LCocaine 0.0022 μg/L —Benzoylecgonine 0.0088 μg/L —Amphetamine 0.0012 μg/L —Methamphetamine 0.00048 μg/L —Metformin 0.038 μg/L —Caffeine 0.018 μg/L —Ibuprofen 0.0038 μg/L —Hardness 7.2°dHpH 7.4Calcium 44 mg/LNitrate 8.8 mg/LCocaine 0.0022 μg/L —Benzoylecgonine 0.0088 μg/L —Amphetamine 0.0012 μg/L —Methamphetamine 0.00048 μg/L —Metformin 0.038 μg/L —Caffeine 0.018 μg/L —Ibuprofen 0.0038 μg/L —Hardness 7.2°dHpH 7.4Calcium 44 mg/LNitrate 8.8 mg/L

Taste Profile

Bohemian rock and the city that invented meth.

Prague water from the Bohemian Massif — Proterozoic crystalline rock — is clean, medium-soft, well within all standards. The interesting story is chemical: methamphetamine traces in Prague water are historically meaningful. "Pervitin" — Czech meth — was synthesised in Prague in 1919, mass-produced for Wehrmacht soldiers in WWII, and continues to be domestically produced. Czech Republic has among Europe's higher meth use (amphetamine-type stimulants dominant per EMCDDA). The water remembers the chemistry.

Tasting notes

medium mineralclean Bohemian characterbalancedslight earthy mineral

Body

Medium body

Hardness

Medium — 7–14°dH

Finish

Medium. Earthy mineral.

Pairs with

—Czech Pilsner (same water type used by Pilsner Urquell 100km west)
—Svíčková na smetaně
—Becherovka
—Trdelník

Water Memory

The city that made the Wehrmacht's pills and Pilsner's water.

Prague was founded in the 9th century at the Vltava river's narrowest crossing. The river (Moldau in German — Smetana's famous tone poem) still shapes the city, but drinking water comes from the highlands, not the river.

“Pilsen water chemistry is unique. Any attempt to reproduce Pilsner Urquell elsewhere requires adjusting the mineral profile to match Bohemian bedrock.”
Brewing chemistry textbooks, consistently.

Geological memory

Bohemian Massif — Precambrian to Paleozoic metamorphic rock. One of Europe's oldest geological units. The water percolates through ancient crystalline rock, emerging moderately mineralised.

Political memory

Pražská vodohospodářská společnost (PVK) is the water utility — majority owned by Veolia (French private). This has been politically contested; Prague city council has discussed remunicipalisation. Czech water law (Zákon o vodách) is strong.

Cultural memory

Czech beer is inseparable from Czech water. Pilsner Urquell (Plzeň, 100km west) uses similar crystalline basement rock water — that specific mineral profile is why Czech lager tastes the way it does. Prague water and Czech brewing heritage share geological DNA.

Water Politics

Overall

Transparency — public data access7/10

Infrastructure — pipe & treatment quality7/10

Source protection — watershed defence7/10

Prague's Bohemian Massif source water is clean. PVK's private (Veolia) ownership creates accountability concerns.

Failures

×PVK majority owned by Veolia — private operator accountability gap
×Agricultural nitrate pressure on Žejlivka watershed
×Methamphetamine (pervitin) historically produced in Czech Republic — detectable in water
×PFAS monitoring less comprehensive than EU western neighbours

Achievements

✓Žejlivka reservoir — protected Bohemian Massif watershed
✓Medium-soft water — low hardness
✓EU Drinking Water Directive compliance maintained
✓Czech water law (Zákon o vodách) adequate source protection

What Prague must do

Consider remunicipalisation of PVK; strengthen PFAS monitoring; reduce agricultural nitrate in Žejlivka catchment