Worldwide wastewater treatment observatory · Netherlands

Aguas SB Observatory · public data to understand water

WWTP UWWTP HAARLEM-WAARDERPOLDER

Netherlands · official identifier NL13010

144,000h-e design capacity (2022) · 39th of 315 (tied with 2 others)

European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier NL13010 · reported size 144,000 h-e design capacity · received load 189,416 h-e · reported treatment: PST · data year 2022. 39th of 315 records with reported size in the inventory of Netherlands (tied with 2 others); 0.68 % of the sum of those 315 records in h-e (sum of records, not national capacity); nearest inventoried plant at 3.1 km · 7 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 · 2022

144,000h-e design capacity

189,416h-e received load (2022)

132 %reported load/capacity ratio (not hydraulic utilisation)

39th of 315by reported size among the 315 records with a size in the inventory (tied with 2 others) · 0.68 % 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	52.3966, 4.6688 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

1967 · The Dutch inventory records 1967 as the construction year of the AWZI Haarlem-Waarderpolder treatment plant. Dutch water authorities, PDOK inventory

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 L06; it does not change the official data.

REGULATORY REFERENCES

Referencia normativa: Netherlands

Regulatory framework of Netherlands · Directive (EU) 2024/3019: reported-capacity band 10,000 to 149,999 p.e.; 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

6,372,214reference kWh per year for this load

33.7kWh per h-e (average load) per year

955,832€ per year at 0.15 €/kWh

56 %share of energy used for aeration

what this estimate is · Inputs: 189,416 p.e. of reported load; equivalent average load 189,189 p.e. with the reference profile of Netherlands (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

18.3estimated hm³ of treated water per year

tertiary treatment reporteda starting point for reclamation

what this estimate is · Volume estimated from the reported load (50,006 m³/day of reference), not measured or available for reclamation.

LOCATION

Netherlands: 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
Uwwtp Haarlem-Schalkwijk	3.1 km	72,000	51,633	primary, secondary and tertiary
Uwwtp Zwanenburg	6.2 km	162,000	79,583	primary, secondary and tertiary
Uwwtp Heemstede	6.2 km	31,500	19,933	primary, secondary and tertiary
Uwwtp Velsen	7.0 km	85,500	71,916	primary, secondary and tertiary
Uwwtp Amsterdam-West	8.0 km	733,320	801,400	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 UWWTP HAARLEM-WAARDERPOLDER report?

Reported size: 144,000 h-e design capacity. Received load: 189,416 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 UWWTP HAARLEM-WAARDERPOLDER?

Aguas SB simulator reference scenario for 189,416 p.e. of reported load: 6,372,214 kWh per year (33.7 kWh per p.e. of average load), with aeration as 56 % 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.