Worldwide wastewater treatment observatory · 
Iceland
Aguas SB Observatory · public data to understand water
WWTP Höfuðborgarsvæðið, Klettagarðar
Iceland · official identifier IS001-02
285,000h-e design capacity (2022) · 1st of 22
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier IS001-02 · reported size 285,000 h-e design capacity · received load 205,743 h-e · reported treatment: T · data year 2022. 1st of 22 records with reported size in the inventory of Iceland; 36.8 % of the sum of those 22 records in h-e (sum of records, not national capacity); nearest inventoried plant at 4.0 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 | terciario (más riguroso) (as reported to the EEA: T) · reported levels |
|---|---|
| Nitrogen removal | not reported |
| Phosphorus removal | not reported |
| UV disinfection | not reported |
| Status | active |
| Reported coordinates | 64.1556, -21.8727 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
- 2002 · The Klettagarðar treatment plant opened as part of Reykjavík’s sewerage system. Ayuntamiento de Reikiavik
- 2005 · The Gufunes pumping station connected wastewater from Grafarvogur and Grafarholt to Klettagarðar. Ayuntamiento de Reikiavik
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 L03; it does not change the official data.
REGULATORY REFERENCES
Referencia normativa: Iceland
Regulatory framework of Iceland. Individual applicability is not determined in this profile.
SCENARIO
Reference energy scenario for this load estimate · simulator engine
what this estimate is · Inputs: 205,743 p.e. of reported load; equivalent average load 205,745 p.e. with the reference profile of Iceland (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 (41,149 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Höfuðborgarsvæðið, Ánanaust | 4.0 km | 170,000 | 117,763 | not reported |
| Alftanes | 9.2 km | 3,000 | 2,530 | not reported |
| Hraunavík, Hafnarfjörður | 13.5 km | 60,000 | 48,928 | not reported |
| Akranes | 21.4 km | 35,000 | 86,285 | not reported |
| Keflavik | 37.9 km | not reported | 16,226 | not reported |
Distances are between reported coordinates; proximity does not establish a hydraulic connection.
QUESTIONS
Frequently asked questions about this plant
What capacity does WWTP Höfuðborgarsvæðið, Klettagarðar report?
Reported size: 285,000 h-e design capacity. Received load: 205,743 h-e. Units are retained without conversion.
What treatment is reported?
Treatment T. Nitrogen, phosphorus and UV are shown only when explicitly reported.
How much energy would a reference plant use with the load of Höfuðborgarsvæðið, Klettagarðar?
Aguas SB simulator reference scenario for 205,743 p.e. of reported load: 6,270,946 kWh per year (30.5 kWh per p.e. of average load), with aeration as 60 % 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.