Worldwide wastewater treatment observatory · 
United States · Washington
Aguas SB Observatory · public data to understand water
WWTP SUMNER STP
The year refers to the inventory or source; it does not establish an individual observation date or current operation. Source note (original text): South Carolina uses 2008 because it did not participate in 2012. CSV has no state or per-row year field. This is not CWNS 2022.
Washington · official identifier HW:38664
26,950reported population served (people) (2012) · 1406th of 14,626 (tied with 1 others)
HydroWASTE v1.0 / United States · official identifier HW:38664 · reported size 26,950 reported population served (people) · reported treatment: Secondary · data year 2012. 1406th of 14,626 records with reported size in the inventory of United States (tied with 1 others); 0.01 % of the sum of those 14,626 records in people served (sum of records, not national capacity); nearest inventoried plant at 5.2 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 scientific inventory · 2012
| Treatment | Secondary · reported levels |
|---|---|
| Reported coordinates | 47.2000, -122.2540 position validation in the source: medium what it means |
| Source and year | HydroWASTE v1.0 / United States · dataset record |
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 | reported population served (people) | Treatment |
|---|---|---|---|
| PUYALLUP STP | 5.2 km | 37,240 | Secondary |
| ORTING S_T FACILITY | 10.6 km | 6,770 | Secondary |
| TACOMA CENTRAL STP 1 | 12.6 km | 218,383 | Secondary |
| SOUTH PRAIRIE AREA | 13.5 km | 482 | Secondary |
| Buckley WWTF | 16.7 km | 4,345 | Secondary |
Distances are between reported coordinates; proximity does not establish a hydraulic connection.
QUESTIONS
Frequently asked questions about this plant
What capacity does WWTP SUMNER STP report?
Reported size: 26,950 reported population served (people). 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 · HydroWASTE v1.0 / United States · data 2012 · edition 2012 · source licence: CC BY 4.0 · JSON for this plant · suggest a correction · catalogue 2026-11-06. Reported data, not a current inspection; no compliance judgements.