Worldwide wastewater treatment observatory · United States · Connecticut

Aguas SB Observatory · public data to understand water

WWTP GROTON WPCF

Groton · official identifier CWNS2022_09000590001

7.5MGD reported design flow (2022) · 1136th of 15,772 (tied with 40 others)

EPA Clean Watersheds Needs Survey 2022 · official identifier CWNS2022_09000590001 · reported size 7.5 MGD reported design flow · reported treatment: Advanced · data year 2022. 1136th of 15,772 records with reported size in the inventory of United States (tied with 40 others); 0.01 % of the sum of those 15,772 records in MGD (sum of records, not national capacity); nearest inventoried plant at 4.9 km · 4 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

7.5MGD reported design flow
1136th of 15,772by reported size among the 15,772 records with a size in the inventory (tied with 40 others) · 0.01 % of the sum of those records (sum of records, not national capacity) · the largest plants in the country · how it is calculated
TreatmentAdvanced · reported levels
Reported coordinates41.3366, -72.0200 precision reported by the source: 4 m what it means
Source and yearEPA 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.

LOCATION

Connecticut: this plant on the map

this plant on the map · regional directory.

NEARBY PLANTS

Nearby wastewater treatment plants

PlantDistanceMGD reported design flowTreatment
STONINGTON-MYSTIC WPCF4.9 km0.8Advanced
GROTON CITY WPCF5.6 km3.1Secondary
NEW LONDON WPCF6.3 km10Advanced
STONINGTON BOROUGH WPCF9.3 km0.66Advanced
LEDYARD HIGHLANDS WPCF11.7 km0.26Advanced

Distances are between reported coordinates; proximity does not establish a hydraulic connection.

QUESTIONS

Frequently asked questions about this plant

What capacity does WWTP GROTON WPCF report?

Reported size: 7.5 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.