Worldwide wastewater treatment observatory · 
France
Aguas SB Observatory · public data to understand water
WWTP TREILLIERES-LES HAIES
France · official identifier FR0444209S0002
8,400h-e design capacity (2022) · 1553rd of 4,051 (tied with 3 others)
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier FR0444209S0002 · reported size 8,400 h-e design capacity · received load 5,983 h-e · reported treatment: PST · data year 2022. 1553rd of 4,051 records with reported size in the inventory of France (tied with 3 others); < 0.01 % of the sum of those 4,051 records in h-e (sum of records, not national capacity); nearest inventoried plant at 5.4 km · 1 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 | 47.3148, -1.5913 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 |
REGULATORY REFERENCES
Referencia normativa: France
Regulatory framework of France · Directive (EU) 2024/3019: reported-capacity band 1,000 to 9,999 p.e.; 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: 5,983 p.e. of reported load; equivalent average load 5,989 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 (868 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Grandchamps-des-Fontaines-Avenue de L Epinay | 5.4 km | 3,200 | 3,321 | primary, secondary and tertiary |
| Heric les Basses Naudais | 12.8 km | 2,600 | 3,278 | primary, secondary and tertiary |
| Nantes 1-Tougas | 13.4 km | 600,000 | 475,869 | primary, secondary and tertiary |
| Nantes 2 - Petite Californie | 13.8 km | 180,000 | 185,814 | primary, secondary and tertiary |
| Nort-Sur-Erdre-les Mares Noires | 14.3 km | 11,300 | 7,840 | 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 TREILLIERES-LES HAIES report?
Reported size: 8,400 h-e design capacity. Received load: 5,983 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 TREILLIERES-LES HAIES?
Aguas SB simulator reference scenario for 5,983 p.e. of reported load: 245,724 kWh per year (41.0 kWh per p.e. of average load), with aeration as 52 % 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.