Where is Lough Annagh-White?

Lough Annagh-White is a lake in Westmeath, Ireland. This page reports official water-quality measurements, shown as reported.

Is Lough Annagh-White safe to swim in?

Lough Annagh-White has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.

Lough Annagh-White

Westmeath, IrelandView map Directions

EPA Ireland publishes the water-quality measurements for Lough Annagh-White. Here is what has been measured.

Phosphorus

15 µg/L

Typical for Ireland

Measured by EPA Ireland

Chlorophyll-a

2.1 µg/L

Less algae than most

Measured by EPA Ireland

Limited data

See the measurements Directions Where to stay

Lough Annagh-White in Westmeath, Ireland has official water-quality measurements, shown as reported. Phosphorus: 15 µg/L. Chlorophyll-a (algae): 2.1 µg/L.

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How Lough Annagh-White is classified

Lough Annagh-White in Ireland is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded phosphorus and algae (chlorophyll-a), but not water clarity.

LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.

Monitoring: the Environmental Protection Agency of Ireland, via UNEP GEMS/Water, with WFD lake names from EPA Ireland.

Lough Annagh-White is a lake in Westmeath County, Ireland.

Source: the Environmental Protection Agency of Ireland, via UNEP GEMS/Water, with WFD lake names from EPA Ireland — not the EPA Water Quality Portal, last sampled 2023-10-16. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Lough Annagh-White is safe to swim in today is a call for the Environmental Protection Agency of Ireland, via UNEP GEMS/Water, with WFD lake names from EPA Ireland and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Lough Annagh-White

These are the measurements EPA Ireland publishes for Lough Annagh-White. More on the source.

No clarity data. Phosphorus 15 µg/L. Chlorophyll-a 2.1 µg/L. TSI 41.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)		No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	15µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	2.1µg/L	Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water.
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.	41	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Lough Annagh-White

Answers come straight from the public measurements and survey records on this page.

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Fishing Lough Annagh-White

→ Lough Annagh-White fishing regulations (limits, seasons, special rules)

Frequently asked questions about Lough Annagh-White

Where is Lough Annagh-White?: Lough Annagh-White is a lake in Westmeath, Ireland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Lough Annagh-White?: Lough Annagh-White in Westmeath, Ireland has official water-quality measurements, shown as reported. Phosphorus: 15 µg/L. Chlorophyll-a (algae): 2.1 µg/L.
Is Lough Annagh-White safe to swim in?: Lough Annagh-White has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.

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Where this data comes from

47 measurements from 1 monitoring station, 2016–2023. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

European Environment Agencyeuropeanenvironmentagenc47 samples · —

Analytical methods

GEMStat OPEN / CC BY 4.0
EPA Ireland WFD lake waterbodies CC BY 4.0

Monitoring station identifiers (1)

IRL00198

Authority classifications are shown as the authority published them. See where the data comes from and data sources.