Worldwide wastewater treatment observatory · 
France
Aguas SB Observatory · public data to understand water
WWTP PARIS SEINE AVAL
France · official identifier FR037800501000
7,500,000h-e design capacity (2022) · 1st of 4,051
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier FR037800501000 · reported size 7,500,000 h-e design capacity · received load 6,142,655 h-e · reported treatment: PST · data year 2022. 1st of 4,051 records with reported size in the inventory of France; 7.7 % of the sum of those 4,051 records in h-e (sum of records, not national capacity); nearest inventoried plant at 7.6 km · 3 within 10 km. Reported data with their source; estimates are not measurements of the plant.
Aguas SB does not manage this wastewater treatment plant.
WHAT THE DATA REPORT
Reported data official data · 2022
| Treatment | primary + secondary + tertiary (more stringent) (as reported to the EEA: PST) · reported levels |
|---|---|
| Nitrogen removal | yes |
| Phosphorus removal | yes |
| UV disinfection | not reported |
| Status | active |
| Reported coordinates | 48.9775, 2.1676 precision reported by the source: level 2 what it means |
| Source and year | European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · dataset record |
FUENTES PÚBLICAS
What public sources report
Documented milestones
- 2024-03-19 · Progress on the Seine Aval clarification and flocculation works was presented. The works were budgeted at €250 million. Caisse des Dépôts
Other published data
| Average daily flow cited in the 2024 announcement | 1,500,000 m³/day (2024) · source |
|---|
Facts taken from public documents, with their date and link; an authorisation, a project or a planned capacity do not prove operation or quantities actually treated. Aguas SB editorial layer, lot L02; it does not change the official data.
REGULATORY REFERENCES
Referencia normativa: France
Regulatory framework of France · Directive (EU) 2024/3019: reported-capacity band 150,000 p.e. or more; obligations are set by agglomeration load, not by the capacity of this plant. Individual applicability is not determined in this profile.
SCENARIO
Reference energy scenario for this load estimate · simulator engine
what this estimate is · Inputs: 6,142,655 p.e. of reported load; equivalent average load 6,145,727 p.e. with the reference profile of France (hypothesis with reported load and reference profile; not a measurement). Open this scenario in the simulator · how it is calculated and what it is not.
Reference scenario computed on the server from the reported load and the country profile; an estimate, not a measurement. The simulator recomputes it when opened.
WATER THAT COULD RETURN
Reuse potential
what this estimate is · Volume estimated from the reported load (890,685 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Paris Seine-Centre | 7.6 km | 900,000 | 823,581 | primary, secondary and tertiary |
| Neuville Sur Oise | 7.7 km | 408,333 | 260,224 | primary, secondary and tertiary |
| Auvers-Sur-Oise | 9.9 km | 34,300 | 22,620 | primary, secondary and tertiary |
| Paris Seine Grésillons | 11.4 km | 1,212,000 | 1,316,193 | primary, secondary and tertiary |
| Butry Sur Oise | 12.6 km | 6,700 | 5,183 | primary, secondary and tertiary |
Distances are between reported coordinates; proximity does not establish a hydraulic connection.
QUESTIONS
Frequently asked questions about this plant
What capacity does WWTP PARIS SEINE AVAL report?
Reported size: 7,500,000 h-e design capacity. Received load: 6,142,655 h-e. Units are retained without conversion.
What treatment is reported?
Treatment PST. Nitrogen, phosphorus and UV are shown only when explicitly reported.
How much energy would a reference plant use with the load of PARIS SEINE AVAL?
Aguas SB simulator reference scenario for 6,142,655 p.e. of reported load: 161,370,167 kWh per year (26.3 kWh per p.e. of average load), with aeration as 69 % of consumption. Estimate with the country reference profile; not a measurement of the plant.
SOURCE AND CORRECTIONS
Source
reported data · European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · data 2022 · edition 2023 · source licence: CC BY 4.0 · JSON for this plant · suggest a correction · catalogue 2026-11-06. Reported data, not a current inspection; no compliance judgements.