Worldwide wastewater treatment observatory · 
Croatia
Aguas SB Observatory · public data to understand water
WWTP Split-Solin-Stupe
Croatia · official identifier HRUWWTP_0001131_001
135,000h-e design capacity (2022) · 4th of 115
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier HRUWWTP_0001131_001 · reported size 135,000 h-e design capacity · received load 168,294 h-e · reported treatment: P · data year 2022. 4th of 115 records with reported size in the inventory of Croatia; 3.1 % of the sum of those 115 records in h-e (sum of records, not national capacity); nearest inventoried plant at 11.8 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 | primario (as reported to the EEA: P) · reported levels |
|---|---|
| Nitrogen removal | not reported |
| Phosphorus removal | not reported |
| UV disinfection | not reported |
| Status | active |
| Reported coordinates | 43.5194, 16.5250 precision reported by the source: level 1 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
- 2004 · The first phase of the Stupe wastewater treatment plant entered service in 2004 with mechanical treatment. Croatian Ministry of the Environment
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 L06; it does not change the official data.
REGULATORY REFERENCES
Referencia normativa: Croatia
Regulatory framework of Croatia · 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: 168,294 p.e. of reported load; equivalent average load 168,295 p.e. with the reference profile of Croatia (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 (33,659 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Sutivan | 15.3 km | 2,000 | 2,211 | primary |
| Supetar | 15.4 km | not reported | 6,890 | not reported |
| Omiš | 15.6 km | 32,210 | 11,933 | primary |
| Postira | 18.1 km | not reported | 4,296 | not reported |
| Kaštela-Trogir-Divulje | 18.5 km | 40,000 | 29,523 | primary |
Distances are between reported coordinates; proximity does not establish a hydraulic connection.
QUESTIONS
Frequently asked questions about this plant
What capacity does WWTP Split-Solin-Stupe report?
Reported size: 135,000 h-e design capacity. Received load: 168,294 h-e. Units are retained without conversion.
What treatment is reported?
Treatment P. Nitrogen, phosphorus and UV are shown only when explicitly reported.
How much energy would a reference plant use with the load of Split-Solin-Stupe?
Aguas SB simulator reference scenario for 168,294 p.e. of reported load: 5,206,906 kWh per year (30.9 kWh per p.e. of average load), with aeration as 59 % 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.