Where is Embalse Del Negratín?

Embalse Del Negratín is a lake in Andalucía, Spain. This page reports official water-quality measurements, shown as reported.

Is Embalse Del Negratín safe to swim in?

Embalse Del Negratín 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.

Embalse Del Negratín

Andalucía, SpainView map Directions

URA publishes the water-quality measurements for Embalse Del Negratín. Here is what has been measured.

Phosphorus

6.5 µg/L

Measured by URA

Chlorophyll-a

0.6 µg/L

Measured by URA

Limited data

See the measurements Directions Where to stay

Embalse Del Negratín in Andalucía, Spain has official water-quality measurements, shown as reported. Phosphorus: 6.5 µg/L. Chlorophyll-a (algae): 0.6 µg/L.

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How Embalse Del Negratín is classified

Embalse Del Negratín in Spain 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: URA (the Basque Water Agency) and published Andalusian reservoir campaigns.

Embalse Del Negratín is a lake in Andalucía County, Spain.

Source: URA (the Basque Water Agency) and published Andalusian reservoir campaigns — not the EPA Water Quality Portal, last sampled 2017-02-16. 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 Embalse Del Negratín is safe to swim in today is a call for URA (the Basque Water Agency) and published Andalusian reservoir campaigns and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Embalse Del Negratín

These are the measurements URA publishes for Embalse Del Negratín. More on the source.

No clarity data. Phosphorus 6.5 µg/L. Chlorophyll-a 0.6 µg/L. TSI 28.

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	6.5µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	0.6µg/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.	28	Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Low nutrients, clear water. No reading is a swimming clearance.

Ask about Embalse Del Negratín

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

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Fishing Embalse Del Negratín

→ Embalse Del Negratín fishing regulations (limits, seasons, special rules)

Frequently asked questions about Embalse Del Negratín

Where is Embalse Del Negratín?: Embalse Del Negratín is a lake in Andalucía, Spain. This page reports official water-quality measurements, shown as reported.
What is the water quality of Embalse Del Negratín?: Embalse Del Negratín in Andalucía, Spain has official water-quality measurements, shown as reported. Phosphorus: 6.5 µg/L. Chlorophyll-a (algae): 0.6 µg/L.
Is Embalse Del Negratín safe to swim in?: Embalse Del Negratín 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

4 measurements from 1 monitoring station, 2016–2017. Retrieved from the listed programme (not the EPA Water Quality Portal). See data sources on 2026-08-20.

Collected and reported by

León-Palmero et al. (PANGAEA)pangaea-andalucia4 samples · —

Analytical methods

PANGAEA 10.1594/PANGAEA.912535

Monitoring station identifiers (1)

Negratin

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