Worldwide wastewater treatment observatory · United States · Washington

Aguas SB Observatory · public data to understand water

WWTP MONROE STP · Monroe · CWNS2022_53000790001

Monroe · official identifier CWNS2022_53000790001

2.84MGD reported design flow (2022) · 2523rd of 15,772 (tied with 1 others)

EPA Clean Watersheds Needs Survey 2022 · official identifier CWNS2022_53000790001 · reported size 2.84 MGD reported design flow · reported treatment: Secondary · data year 2022. 2523rd of 15,772 records with reported size in the inventory of United States (tied with 1 others); < 0.01 % of the sum of those 15,772 records in MGD (sum of records, not national capacity); nearest inventoried plant at 11.2 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

2.84MGD reported design flow
2523rd of 15,772by reported size among the 15,772 records with a size in the inventory (tied with 1 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 coordinates47.8487, -121.9761 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

Washington: this plant on the map

this plant on the map · regional directory.

NEARBY PLANTS

Nearby wastewater treatment plants

PlantDistanceMGD reported design flowTreatment
Snohomish Wastewater System11.2 km2.8Secondary
SULTAN WWTP11.8 km0.61Advanced
Duvall WWTP12.9 km1.3Secondary
Brightwater Treatment Plant13.9 km40.9Secondary
LAKE STEVENS STP20.7 km4.32Secondary

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

QUESTIONS

Frequently asked questions about this plant

What capacity does WWTP MONROE STP · Monroe · CWNS2022_53000790001 report?

Reported size: 2.84 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.