Embalse Del Negratín
Embalse Del Negratín in Andalucía, Spain has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 6.5 µg/L. Chlorophyll-a (algae): 0.6 µg/L.
Why Embalse Del Negratín has no A–F grade
Embalse Del Negratín in Spain is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded phosphorus and algae (chlorophyll-a), but not water clarity.
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still 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. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Embalse Del Negratín
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 6.5 µg/L. Chlorophyll-a: 0.6 µg/L. Trophic State Index: 28.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 6.5 µg/L | Not graded |
| Chlorophyll-a (Algae) | 0.6 µg/L | Not graded |
| Trophic State Index (TSI) | 28 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Embalse Del Negratín
Compare lakeside cabins, hotels, and vacation rentals near Embalse Del Negratín in Andalucía, Spain — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing Embalse Del Negratín
Frequently asked questions about Embalse Del Negratín
What is the water quality of Embalse Del Negratín?
- Embalse Del Negratín in Andalucía, Spain has official water-quality measurements, not a LakeQuality A–F grade. 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 stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.