Worldwide wastewater treatment observatory · 
Switzerland
Aguas SB Observatory · public data to understand water
WWTP ENGOLLON
Switzerland · official identifier CH_WWTP_647600
18,700h-e design capacity (2022) · 192nd of 705
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier CH_WWTP_647600 · reported size 18,700 h-e design capacity · received load 12,070 h-e · reported treatment: PS · data year 2022. 192nd of 705 records with reported size in the inventory of Switzerland; 0.11 % of the sum of those 705 records in h-e (sum of records, not national capacity); nearest inventoried plant at 6.2 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 (as reported to the EEA: PS) · reported levels |
|---|---|
| Nitrogen removal | not reported |
| Phosphorus removal | not reported |
| UV disinfection | not reported |
| Status | active |
| Reported coordinates | 47.0496, 6.9343 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: 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: 12,070 p.e. of reported load; equivalent average load 13,628 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 (4,068 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Neuchatel | 6.2 km | 75,000 | 40,730 | primary and secondary |
| Marin(Chatellenie) | 8.1 km | 33,000 | 16,334 | primary and secondary |
| La-Chaux-de-Fonds | 10.1 km | 50,000 | 34,919 | primary and secondary |
| Colombier(La Saunerie) | 10.2 km | 32,000 | 28,156 | primary and secondary |
| Le Landeron | 10.3 km | 14,000 | 10,036 | primary and secondary |
Distances are between reported coordinates; proximity does not establish a hydraulic connection.
QUESTIONS
Frequently asked questions about this plant
What capacity does WWTP ENGOLLON report?
Reported size: 18,700 h-e design capacity. Received load: 12,070 h-e. Units are retained without conversion.
What treatment is reported?
Treatment PS. Nitrogen, phosphorus and UV are shown only when explicitly reported.
How much energy would a reference plant use with the load of ENGOLLON?
Aguas SB simulator reference scenario for 12,070 p.e. of reported load: 688,311 kWh per year (50.5 kWh per p.e. of average load), with aeration as 42 % 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.