Worldwide wastewater treatment observatory · 
United States · Louisiana
Aguas SB Observatory · public data to understand water
WWTP WESTWEGO STP
Westwego · official identifier CWNS2022_22001435001
3MGD reported design flow (2022) · 2332nd of 15,772 (tied with 168 others)
EPA Clean Watersheds Needs Survey 2022 · official identifier CWNS2022_22001435001 · reported size 3 MGD reported design flow · reported treatment: Advanced · data year 2022. 2332nd of 15,772 records with reported size in the inventory of United States (tied with 168 others); < 0.01 % of the sum of those 15,772 records in MGD (sum of records, not national capacity); nearest inventoried plant at 2.6 km · 6 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 | Advanced · reported levels |
|---|---|
| Reported coordinates | 29.9111, -90.1435 precision reported by the source: 4 m what it means |
| Source and year | EPA Clean Watersheds Needs Survey 2022 · dataset record |
REGULATORY REFERENCES
Referencia normativa: United States
Regulatory framework of United States. Individual applicability is not determined in this profile.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | MGD reported design flow | Treatment |
|---|---|---|---|
| MARRERO PLANT | 2.6 km | 9.6 | Secondary |
| EAST BANK PLANT | 7.5 km | 33.46 | Secondary |
| NEW ORLEANS W. BANK STP | 8.1 km | 20 | Advanced |
| HARVEY PLANT | 8.1 km | 13.7 | Secondary |
| BRIDGE CITY OLD PLANT | 8.2 km | 7.23 | Secondary |
Distances are between reported coordinates; proximity does not establish a hydraulic connection.
QUESTIONS
Frequently asked questions about this plant
What capacity does WWTP WESTWEGO STP report?
Reported size: 3 MGD reported design flow. Units are retained without conversion.
What treatment is reported?
Treatment Advanced. Nitrogen, phosphorus and UV are shown only when explicitly reported.
SOURCE AND CORRECTIONS
Source
reported data · EPA Clean Watersheds Needs Survey 2022 · data 2022 · edition 2022 · source licence: Public domain (EPA geospatial default; see LICENCIA.txt) · JSON for this plant · suggest a correction · catalogue 2026-11-06. Reported data, not a current inspection; no compliance judgements.