Is Tap Water Safe to Drink in Casablanca?
Caution is advised with tap water in Casablanca. LYDEC (Lyonnaise des Eaux de Casablanca), a subsidiary of the Suez group, treats and distributes the supply to Moroccan standards, but the water’s heavy chlorination and mineral content make most visitors prefer bottled water.
Water Source
Casablanca’s water is sourced from the Oum Er-Rbia River basin and the Bin El Ouidane and Al Massira dams, treated by ONEE (Office National de l’Electricité et de l’Eau Potable) at regional plants before distribution by LYDEC through the city’s network.
Contaminants & Concerns
The water meets Moroccan drinking standards at the treatment plant, but heavy chlorination gives a strong taste. The distribution network in older neighbourhoods like the Médina has ageing pipes where quality may degrade. Occasional turbidity spikes follow heavy rainfall in the catchment area.
Tips
- •Bottled water is inexpensive and widely available — brands like Sidi Ali and Aïn Saiss are popular local choices
- •If drinking tap water, let it sit in an open jug for an hour to reduce the strong chlorine taste
- •Restaurants in the Corniche and modern city centre typically serve bottled water and use purified ice
Frequently Asked Questions
Sources & References
The safety rating and guidance on this page draw on the following sources. See our full methodology.
- •WHO Guidelines for Drinking-water Quality
- •CDC Travelers' Health destination pages
- •The municipal water utility's published quality data