Worldwide wastewater treatment observatory · 
Switzerland
Aguas SB Observatory · public data to understand water
WWTP CHAM(SCHOENAU)
Switzerland · official identifier CH_WWTP_170200
245,000h-e design capacity (2022) · 10th of 705
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier CH_WWTP_170200 · reported size 245,000 h-e design capacity · received load 147,901 h-e · reported treatment: PST · data year 2022. 10th of 705 records with reported size in the inventory of Switzerland; 1.5 % of the sum of those 705 records in h-e (sum of records, not national capacity); nearest inventoried plant at 2.8 km · 7 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 | 47.1986, 8.4416 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
- 1998 · In 1998, the expansion of the central Schönau plant in Cham, which receives wastewater from the Lake Zug ring sewer, was completed. Canton of Zug
Other published data
| Mean annual volume treated reported in the 2022 cycle | 21,338,292 m³/year (2022) · 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 L04; it does not change the official data.
REGULATORY REFERENCES
Referencia normativa: Switzerland
Regulatory framework of Switzerland. Individual applicability is not determined in this profile.
SCENARIO
Reference energy scenario for this load estimate · simulator engine
what this estimate is · Inputs: 147,901 p.e. of reported load; equivalent average load 166,974 p.e. with the reference profile of Switzerland (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 (49,843 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Knonau | 2.8 km | 7,000 | 5,930 | primary, secondary and tertiary |
| Sins | 3.1 km | 10,735 | 10,115 | primary, secondary and tertiary |
| Oberrueti | 4.1 km | 2,449 | 2,316 | primary, secondary and tertiary |
| Hausen | 7.6 km | 4,500 | 3,071 | primary, secondary and tertiary |
| Obfelden | 7.7 km | 7,000 | 6,881 | 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 CHAM(SCHOENAU) report?
Reported size: 245,000 h-e design capacity. Received load: 147,901 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 CHAM(SCHOENAU)?
Aguas SB simulator reference scenario for 147,901 p.e. of reported load: 5,717,968 kWh per year (34.2 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.