Worldwide wastewater treatment observatory · 
United States · California
Aguas SB Observatory · public data to understand water
WWTP LACSD (Los Coyotes WRP)
Cerritos · official identifier CWNS2022_06004009005
37.5MGD reported design flow (2022) · 218th of 15,772 (tied with 1 others)
EPA Clean Watersheds Needs Survey 2022 · official identifier CWNS2022_06004009005 · reported size 37.5 MGD reported design flow · reported treatment: Advanced · data year 2022. 218th of 15,772 records with reported size in the inventory of United States (tied with 1 others); 0.07 % of the sum of those 15,772 records in MGD (sum of records, not national capacity); nearest inventoried plant at 8.5 km · 1 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 | 33.8799, -118.1035 precision reported by the source: 4 m what it means |
| Source and year | EPA Clean Watersheds Needs Survey 2022 · dataset record |
FUENTES PÚBLICAS
What public sources report
Population of the served area (Instalación CWNS 06004009005): 523,851 inhabitants (2022, U.S. Environmental Protection Agency (EPA)).
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 L07; it does not change the official data.
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 |
|---|---|---|---|
| LACSD (Long Beach WRP) | 8.5 km | 25 | Advanced |
| LACSD (Whittier Narrows WRP) | 17.0 km | 15 | Advanced |
| LACSD (San Jose Creek WRP) | 18.6 km | 100 | Advanced |
| LACSD (Joint Water Pollution Control Plant) | 18.7 km | 400 | Secondary |
| Terminal Island WRP | 20.9 km | 30 | Advanced |
Distances are between reported coordinates; proximity does not establish a hydraulic connection.
QUESTIONS
Frequently asked questions about this plant
What capacity does WWTP LACSD (Los Coyotes WRP) report?
Reported size: 37.5 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.