WWTP SWANSEA STW

United Kingdom · official identifier UKWAWA_WW_TP000074

198,058h-e design capacity (2018) · 76th of 1,875

European Environment Agency — Waterbase-UWWTD, data call 2019 (v07.01) · official identifier UKWAWA_WW_TP000074 · reported size 198,058 h-e design capacity · received load 194,376 h-e · reported treatment: PST · data year 2018. 76th of 1,875 records with reported size in the inventory of United Kingdom; 0.21 % of the sum of those 1,875 records in h-e (sum of records, not national capacity); nearest inventoried plant at 9.0 km · 2 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 · 2018

198,058h-e design capacity

194,376h-e received load (2018)

98 %reported load/capacity ratio (not hydraulic utilisation)

76th of 1,875by reported size among the 1,875 records with a size in the inventory · 0.21 % of the sum of those records (sum of records, not national capacity) · the largest plants in the country · how it is calculated

Treatment	primary + secondary + tertiary (more stringent) (as reported to the EEA: PST) · reported levels
Nitrogen removal	not reported
Phosphorus removal	not reported
UV disinfection	yes
Status	active
Reported coordinates	51.6200, -3.8943 precision reported by the source: level 2 what it means
Source and year	European Environment Agency — Waterbase-UWWTD, data call 2019 (v07.01) · dataset record

FUENTES PÚBLICAS

What public sources report

Documented milestones

2015 · A 2015 report records the construction of the Swansea Bay tertiary treatment works in the late 1990s. Natural Resources Wales

Facts taken from public documents, with their date and link; an authorisation, a project or a planned capacity do not prove operation or quantities actually treated. Aguas SB editorial layer, lot L04; it does not change the official data.

REGULATORY REFERENCES

Referencia normativa: United Kingdom

Regulatory framework of United Kingdom. Individual applicability is not determined in this profile.

LOCATION

United Kingdom: this plant on the map

this plant on the map · regional directory.

NEARBY PLANTS

Nearby wastewater treatment plants

Plant	Distance	Capacity (h-e)	Load 2018	Treatment
Port Talbot And Neath Stw	9.0 km	146,616	145,599	primary and secondary
Trebanos Stw Pheasant Rd Trebanos Stw	9.7 km	17,393	17,393	primary, secondary and tertiary
Gowerton Stw	10.4 km	56,653	56,653	primary, secondary and tertiary
Llannant Wwtw Llannant Road Swansea Stw	13.2 km	16,540	16,540	primary, secondary and tertiary
Llangennech Waste Water Treatment Stw	14.6 km	5,144	5,144	primary and secondary

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

QUESTIONS

Frequently asked questions about this plant

What capacity does WWTP SWANSEA STW report?

Reported size: 198,058 h-e design capacity. Received load: 194,376 h-e. Units are retained without conversion.

What treatment is reported?

Treatment PST. Nitrogen, phosphorus and UV are shown only when explicitly reported.

SOURCE AND CORRECTIONS

Source

reported data · European Environment Agency — Waterbase-UWWTD, data call 2019 (v07.01) · data 2018 · edition 2019 · 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.