Worldwide wastewater treatment observatory · 
Austria
Aguas SB Observatory · public data to understand water
WWTP ARA Werfen
Austria · official identifier ATTP_5-A1753932R157
4,000h-e design capacity (2022) · 453rd of 634 (tied with 20 others)
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier ATTP_5-A1753932R157 · reported size 4,000 h-e design capacity · received load 3,253 h-e · reported treatment: PST · data year 2022. 453rd of 634 records with reported size in the inventory of Austria (tied with 20 others); 0.02 % of the sum of those 634 records in h-e (sum of records, not national capacity); nearest inventoried plant at 2.6 km · 2 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 | 47.4821, 13.1921 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: Austria
Regulatory framework of Austria · 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: 3,253 p.e. of reported load; equivalent average load 3,233 p.e. with the reference profile of Austria (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 (651 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Ara Tenneck-Werfen | 2.6 km | 2,000 | 2,304 | primary, secondary and tertiary |
| Ara Salzach-Pongau | 5.0 km | 125,000 | 96,513 | primary, secondary and tertiary |
| Ara Fritztal-Hüttau | 10.3 km | 14,000 | 9,662 | primary, secondary and tertiary |
| Ara Mühlbach | 11.7 km | 9,000 | 3,507 | primary, secondary and tertiary |
| Ara Abtenau | 15.6 km | 12,088 | 9,560 | 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 ARA Werfen report?
Reported size: 4,000 h-e design capacity. Received load: 3,253 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 ARA Werfen?
Aguas SB simulator reference scenario for 3,253 p.e. of reported load: 149,434 kWh per year (46.2 kWh per p.e. of average load), with aeration as 70 % 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.