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LakeQuality

Endhó Dam

NR
Not yet rated
0.2 m clear · Eutrophic
Limited DataEutrophic

Endhó Dam in Unknown, Mexico has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.2 m visibility. Chlorophyll-a (algae): 8.4 µg/L.

Clarity
0.2 m
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Why Endhó Dam has no A–F grade

Endhó Dam in Mexico 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 and algae (chlorophyll-a), but not phosphorus.

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: the National Water Commission of Mexico (CONAGUA), via UNEP GEMS/Water.

Endhó Dam is a lake in Unknown County, Mexico.

Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2020-10-22. Grade methodology: LakeGrade methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

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Water quality measurements for Endhó Dam

These readings exist but do not meet the evidence bar for an A–F grade — see why.

Very murky, less than 0.7 ft of visibility. Chlorophyll-a: 8.4 µg/L. Trophic State Index: 67.

MetricValueGrade
Water Clarity (Secchi Depth)0.22 mNot graded
PhosphorusNo recent samples
Chlorophyll-a (Algae)8.4 µg/LNot graded
Trophic State Index (TSI)67Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Endhó Dam

Compare lakeside cabins, hotels, and vacation rentals near Endhó Dam in Unknown, Mexico — 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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Frequently asked questions about Endhó Dam

What is the water quality of Endhó Dam?

Endhó Dam in Unknown, Mexico has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.2 m visibility. Chlorophyll-a (algae): 8.4 µg/L.

Is Endhó Dam safe to swim in?

Endhó Dam 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.

Where this data comes from

16 measurements from 4 monitoring stations, 2019–2020. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

  • Comisión Nacional del Aguacomisionnacionaldelagua16 samples ·

Analytical methods

  • GEMStat OPEN / CC BY 4.0
Monitoring station identifiers (4)
  • MEX04860
  • MEX04861
  • MEX04862
  • MEX04873

Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.

Data Sources

Water quality data from the EPA Water Quality Portal

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion

Most recent sample: 2020-10-22

Monitoring stations: 4

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