Source d'eau chaude d'Incarville

Incarville, Eure, Normandie, France

Location: Incarville, Eure, Normandie, France
Water type: thermal
Temperature: 38 °C
pH: 7.3

Water profile

Thermicity

Neutral

38 °C

LowHigh

Soothing — neither hot nor cold, perfect balance.

Mineralisation

Balancing

LowHigh

Rich in trace elements — gentle on the skin.

Buoyancy

Standard buoyancy

LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesCalcium

Source d'Eau Chaude d'Incarville is a naturally warm sulphurous spring located in or near the commune of Incarville, offering an accessible encounter with geothermal water at a modest scale. Such small, locally significant springs are often the quiet anchors of regional mineral water culture, valued by local communities for their perceived therapeutic properties and as landmarks of natural heritage. The source represents France's extraordinary wealth of geothermal occurrences, ranging from grand established spas to intimate natural outlets like this one.

Insider tip — This geothermal warm-water source in the Seine valley near Incarville is a rare find in Normandy, where deep drilling has revealed warm aquifers beneath the chalk geology of the Eure department. The water emerges at around 38°C and is notable for its scarcity in this otherwise cool-climate region. The site sits along the Seine corridor between Rouen and Paris, making it an unusual geothermal curiosity for the area. Such deep thermal sources in the Paris Basin are typically associated with Dogger-age Jurassic limestone formations.

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