Worldwide wastewater treatment observatory · 
United Kingdom
Aguas SB Observatory · public data to understand water
WWTP HENLEY STW
United Kingdom · official identifier UKENTH_TWU_TP000079
15,435h-e design capacity (2018) · 728th of 1,875
European Environment Agency — Waterbase-UWWTD, data call 2019 (v07.01) · official identifier UKENTH_TWU_TP000079 · reported size 15,435 h-e design capacity · received load 14,485 h-e · reported treatment: PS · data year 2018. 728th of 1,875 records with reported size in the inventory of United Kingdom; 0.02 % of the sum of those 1,875 records in h-e (sum of records, not national capacity); nearest inventoried plant at 6.4 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 · 2018
| Treatment | primary + secondary (as reported to the EEA: PS) · reported levels |
|---|---|
| Nitrogen removal | not reported |
| Phosphorus removal | yes |
| UV disinfection | not reported |
| Status | active |
| Reported coordinates | 51.5507, -0.9039 precision reported by the source: level 2 what it means |
| Source and year | European Environment Agency — Waterbase-UWWTD, data call 2019 (v07.01) · dataset record |
REGULATORY REFERENCES
Referencia normativa: United Kingdom
Regulatory framework of United Kingdom. Individual applicability is not determined in this profile.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2018 | Treatment |
|---|---|---|---|---|
| Sonning Common Stw | 6.4 km | 6,026 | 4,802 | primary and secondary |
| Wargrave, Wargrave, Berks Stw" | 6.5 km | 125,276 | 125,276 | primary and secondary |
| Little Marlow Stw | 11.9 km | 184,812 | 184,812 | primary and secondary |
| White Waltham, White Waltham, B Stw" | 12.2 km | 5,637 | 5,637 | primary and secondary |
| Maidenhead, Braywick Road, Maid Stw" | 13.7 km | 87,588 | 84,314 | 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 HENLEY STW report?
Reported size: 15,435 h-e design capacity. Received load: 14,485 h-e. Units are retained without conversion.
What treatment is reported?
Treatment PS. Nitrogen, phosphorus and UV are shown only when explicitly reported.
SOURCE AND CORRECTIONS
Source
reported data · European Environment Agency — Waterbase-UWWTD, data call 2019 (v07.01) · data 2018 · edition 2019 · 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.