Worldwide wastewater treatment observatory · 
Poland
Aguas SB Observatory · public data to understand water
WWTP Oczyszczalnia Ścieków w Otwocku
Poland · official identifier PLMZ0081
139,500h-e design capacity (2022) · 77th of 1,654
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier PLMZ0081 · reported size 139,500 h-e design capacity · received load 110,267 h-e · reported treatment: PST · data year 2022. 77th of 1,654 records with reported size in the inventory of Poland; 0.26 % of the sum of those 1,654 records in h-e (sum of records, not national capacity); nearest inventoried plant at 3.3 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 | 52.0957, 21.2369 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
Population of the served area (Otwock): 54,496 inhabitants (2024, Polish National Water Management Authority).
Documented milestones
- 2018-03-15 · The plant permit became final, according to the national report. Polish National Water Management Authority
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 L07; it does not change the official data.
REGULATORY REFERENCES
Referencia normativa: Poland
Regulatory framework of Poland · Directive (EU) 2024/3019: reported-capacity band 10,000 to 149,999 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: 110,267 p.e. of reported load; equivalent average load 85,943 p.e. with the reference profile of Poland (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 (11,909 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Józefów · Plmz0082 | 3.3 km | 18,000 | 17,837 | primary, secondary and tertiary |
| Plmz0300 | 6.5 km | 30,000 | 22,152 | primary, secondary and tertiary |
| Emów | 8.7 km | 16,000 | 3,584 | primary and secondary |
| Moczydłów | 11.1 km | 26,400 | 21,651 | primary, secondary and tertiary |
| Piaseczno | 13.5 km | 163,500 | 131,725 | 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 Oczyszczalnia Ścieków w Otwocku report?
Reported size: 139,500 h-e design capacity. Received load: 110,267 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 Oczyszczalnia Ścieków w Otwocku?
Aguas SB simulator reference scenario for 110,267 p.e. of reported load: 2,753,269 kWh per year (32.0 kWh per p.e. of average load), with aeration as 61 % 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.