Worldwide wastewater treatment observatory · United States · Illinois

Aguas SB Observatory · public data to understand water

WWTP Maeystown

Maeystown · official identifier CWNS2022_17000000098

0.02MGD reported design flow (2022) · 14974th of 15,772 (tied with 46 others)

EPA Clean Watersheds Needs Survey 2022 · official identifier CWNS2022_17000000098 · reported size 0.02 MGD reported design flow · reported treatment: Secondary · data year 2022. 14974th of 15,772 records with reported size in the inventory of United States (tied with 46 others); < 0.01 % of the sum of those 15,772 records in MGD (sum of records, not national capacity); nearest inventoried plant at 10.6 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

0.02MGD reported design flow
14974th of 15,772by reported size among the 15,772 records with a size in the inventory (tied with 46 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
TreatmentSecondary · reported levels
Reported coordinates38.2240, -90.2320 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

Illinois: this plant on the map

this plant on the map · regional directory.

NEARBY PLANTS

Nearby wastewater treatment plants

PlantDistanceMGD reported design flowTreatment
VALMEYER STP10.6 km0.09Secondary
Selma Village WWTF11.8 km0.15Advanced
Herculaneum WWTP13.1 km1.05Advanced
Festus-Crystal City WWTP13.3 km3Advanced
WATERLOO, CITY OF14.2 km2.09Advanced

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

QUESTIONS

Frequently asked questions about this plant

What capacity does WWTP Maeystown report?

Reported size: 0.02 MGD reported design flow. Units are retained without conversion.

What treatment is reported?

Treatment Secondary. 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.