Overview
HERMES 2 is a wastewater treatment plant serving Heilles in the Hauts-de-France region of France. It treats wastewater for approximately 5,748 residents.
HERMES 2 is a wastewater treatment plant located in Heilles, a commune in the Oise department of the Hauts-de-France region, northern France. The plant serves a population of approximately 5,748 people, placing it in the small-to-medium agglomeration category under French and EU regulations. As a French facility, HERMES 2 operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwater. The plant's treatment processes and capacity are managed to comply with national standards set by the French water agencies, ensuring effluent quality meets environmental objectives. The treated wastewater from HERMES 2 is discharged into the local watershed, which ultimately drains into the Oise River, a major tributary of the Seine. The Seine River flows through Paris and into the English Channel, supporting diverse aquatic ecosystems and serving as a critical water resource for the region.
Environmental context
The plant discharges into the Oise River basin, which flows into the Seine River and eventually reaches the English Channel. This watershed supports diverse aquatic life and is an important ecological corridor in northern France. The Seine estuary and downstream marine environment are sensitive to nutrient inputs, making effective treatment crucial for water quality.
Frequently asked questions
HERMES 2 is located in Heilles, a commune in the Oise department of the Hauts-de-France region, northern France.
HERMES 2 serves approximately 5,748 residents, classifying it as a small-to-medium agglomeration under EU regulations.
The treated wastewater from HERMES 2 is discharged into the local watershed, which drains into the Oise River, a tributary of the Seine River.
As a French plant serving about 5,748 people, HERMES 2 falls under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwater.
For agglomerations of this scale in France, secondary treatment is typically required under the EU directive, often involving biological processes to reduce organic matter and suspended solids.
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