Worldwide wastewater treatment observatory · United States · Washington

Aguas SB Observatory · public data to understand water

WWTP Yelm Wastewater Treat and Reclaim

Yelm · official identifier CWNS2022_53002530001

1.06MGD reported design flow (2022) · 4345th of 15,772 (tied with 3 others)

EPA Clean Watersheds Needs Survey 2022 · official identifier CWNS2022_53002530001 · reported size 1.06 MGD reported design flow · reported treatment: Secondary · data year 2022. 4345th of 15,772 records with reported size in the inventory of United States (tied with 3 others); < 0.01 % of the sum of those 15,772 records in MGD (sum of records, not national capacity); nearest inventoried plant at 19.0 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

1.06MGD reported design flow
4345th of 15,772by reported size among the 15,772 records with a size in the inventory (tied with 3 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 coordinates46.9509, -122.5966 precision reported by the source: 4 m what it means
Source and yearEPA Clean Watersheds Needs Survey 2022 · dataset record

REGULATORY REFERENCES

Regulatory reference: 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
Martin Way Reclaimed Water Plant19.0 km2Advanced
Tenino Wastewater Facility24.0 km0.23Secondary
Budd Inlet Treatment Plant25.3 km17Secondary
TAMOSHAN WWTP25.8 km0.05Secondary
EATONVILLE STP26.9 km0.13Secondary

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

QUESTIONS

Frequently asked questions about this plant

What capacity does WWTP Yelm Wastewater Treat and Reclaim report?

Reported size: 1.06 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.