Urkulu Embalse
Urkulu Embalse in Gipuzkoa, Spain has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 3 m visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 0.9 µg/L.
- Clarity
- 3 m
Why Urkulu Embalse has no A–F grade
Urkulu Embalse 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 water clarity, phosphorus and algae (chlorophyll-a).
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.
Urkulu Embalse is a lake in Gipuzkoa County, Spain.
Source: URA (the Basque Water Agency) and published Andalusian reservoir campaigns — not the EPA Water Quality Portal, last sampled 2025-11-06. 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 Urkulu Embalse
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Moderate clarity, visible to about 9.8 ft. Phosphorus level: 10 µg/L. Chlorophyll-a: 0.9 µg/L. Trophic State Index: 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 m | Not graded |
| Phosphorus | 10 µg/L | Not graded |
| Chlorophyll-a (Algae) | 0.9 µg/L | Not graded |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Urkulu Embalse
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Fishing Urkulu Embalse
Frequently asked questions about Urkulu Embalse
What is the water quality of Urkulu Embalse?
- Urkulu Embalse in Gipuzkoa, Spain has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 3 m visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 0.9 µg/L.
Is Urkulu Embalse safe to swim in?
- Urkulu Embalse 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
17 measurements from 1 monitoring station, 2024–2025. Retrieved from the listed programme (not the EPA Water Quality Portal). See data sources on 2026-08-20.
Collected and reported by
- URA / Agència Vasca del Agua
ura-es17 samples · —
Analytical methods
- URA UBEGI reservoir monitoring
Monitoring station identifiers (1)
URK-EMB
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.