Worldwide wastewater treatment observatory · Ireland

Aguas SB Observatory · public data to understand water

WWTP Lower Liffey Valley Regional Sewerage Scheme

Ireland · official identifier IETP_D0004

150,000h-e design capacity (2022) · 7th of 191

European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier IETP_D0004 · reported size 150,000 h-e design capacity · received load 140,458 h-e · reported treatment: PST · data year 2022. 7th of 191 records with reported size in the inventory of Ireland; 2.6 % of the sum of those 191 records in h-e (sum of records, not national capacity); nearest inventoried plant at 11.5 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

150,000h-e design capacity

140,458h-e received load (2022)

94 %reported load/capacity ratio (not hydraulic utilisation)

7th of 191by reported size among the 191 records with a size in the inventory · 2.6 % 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	yes
Phosphorus removal	yes
UV disinfection	not reported
Status	active
Reported coordinates	53.3688, -6.4873 precision reported by the source: level 2 what it means
Source and year	European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · dataset record

FUENTES PÚBLICAS

What public sources report

Documented milestones

2014-02-03 · Environmental licence D0004-01 for the Lower Liffey Valley wastewater system was amended in 2014. Environmental Protection Agency of Ireland

Other published data

Mean annual volume treated reported in the 2022 cycle	14,016,000 m³/year (2022) · source

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 L05; it does not change the official data.

REGULATORY REFERENCES

Referencia normativa: Ireland

Regulatory framework of Ireland · Directive (EU) 2024/3019: reported-capacity band 150,000 p.e. or more; obligations are set by agglomeration load, not by the capacity of this plant. Individual applicability is not determined in this profile.

SCENARIO

Reference energy scenario for this load estimate · simulator engine

4,476,444reference kWh per year for this load

31.9kWh per h-e (average load) per year

671,467€ per year at 0.15 €/kWh

57 %share of energy used for aeration

what this estimate is · Inputs: 140,458 p.e. of reported load; equivalent average load 140,460 p.e. with the reference profile of Ireland (hypothesis with reported load and reference profile; not a measurement). Open this scenario in the simulator · how it is calculated and what it is not.

Reference scenario computed on the server from the reported load and the country profile; an estimate, not a measurement. The simulator recomputes it when opened.

WATER THAT COULD RETURN

Reuse potential

10.3estimated hm³ of treated water per year

tertiary treatment reporteda starting point for reclamation

what this estimate is · Volume estimated from the reported load (28,092 m³/day of reference), not measured or available for reclamation.

LOCATION

Ireland: this plant on the map

this plant on the map · regional directory.

NEARBY PLANTS

Nearby wastewater treatment plants

Plant	Distance	Capacity (h-e)	Load 2022	Treatment
Longwood	11.5 km	1,500	2,067	primary, secondary and tertiary
Ringsend	13.2 km	1,640,000	2,207,592	primary, secondary and tertiary
Dunshaughlin	16.7 km	12,000	6,647	primary, secondary and tertiary
Swords	19.4 km	70,000	59,101	primary, secondary and tertiary
Upper Liffey Valley Sewerage Scheme	19.8 km	130,000	99,966	primary, secondary and tertiary

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

QUESTIONS

Frequently asked questions about this plant

What capacity does WWTP Lower Liffey Valley Regional Sewerage Scheme report?

Reported size: 150,000 h-e design capacity. Received load: 140,458 h-e. Units are retained without conversion.

What treatment is reported?

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

How much energy would a reference plant use with the load of Lower Liffey Valley Regional Sewerage Scheme?

Aguas SB simulator reference scenario for 140,458 p.e. of reported load: 4,476,444 kWh per year (31.9 kWh per p.e. of average load), with aeration as 57 % of consumption. Estimate with the country reference profile; not a measurement of the plant.

SOURCE AND CORRECTIONS

Source

reported data · European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · data 2022 · edition 2023 · 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.