WWTP Sion Mills

United Kingdom · official identifier UKNI_TP00076

4,950h-e design capacity (2018) · 1332nd of 1,875 (tied with 3 others)

European Environment Agency — Waterbase-UWWTD, data call 2019 (v07.01) · official identifier UKNI_TP00076 · reported size 4,950 h-e design capacity · received load 3,544 h-e · reported treatment: PS · data year 2018. 1332nd of 1,875 records with reported size in the inventory of United Kingdom (tied with 3 others); < 0.01 % of the sum of those 1,875 records in h-e (sum of records, not national capacity); nearest inventoried plant at 5.3 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

4,950h-e design capacity

3,544h-e received load (2018)

72 %reported load/capacity ratio (not hydraulic utilisation)

1332nd of 1,875by reported size among the 1,875 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

Treatment	primary + secondary (as reported to the EEA: PS) · reported levels
Nitrogen removal	not reported
Phosphorus removal	not reported
UV disinfection	not reported
Status	active
Reported coordinates	54.7900, -7.4690 precision reported by the source: level 0 what it means
Source and year	European Environment Agency — Waterbase-UWWTD, data call 2019 (v07.01) · dataset record

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
Strabane	5.3 km	38,000	22,191	primary and secondary
Newtownstewart	9.6 km	4,320	2,168	primary, secondary and tertiary
Castlederg	11.5 km	4,750	3,902	primary and secondary
Claudy	24.6 km	3,409	2,722	primary and secondary
Dromore, Tyrone	28.9 km	2,500	2,032	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 Sion Mills report?

Reported size: 4,950 h-e design capacity. Received load: 3,544 h-e. Units are retained without conversion.

What treatment is reported?

Treatment PS. 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.