Where is Miguel Hidalgo Y Costilla Dam?

Miguel Hidalgo Y Costilla Dam is a lake in Mexico. This page reports official water-quality measurements, shown as reported.

Is Miguel Hidalgo Y Costilla Dam safe to swim in?

Miguel Hidalgo Y Costilla 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.

Miguel Hidalgo Y Costilla Dam

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CONAGUA publishes the water-quality measurements for Miguel Hidalgo Y Costilla Dam. Here is what has been measured.

Clarity

1.3 m

Clearer than most

Secchi · sampled 2020

Phosphorus

65.6 µg/L

Typical for Mexico

Measured by CONAGUA

Chlorophyll-a

6.7 µg/L

Typical for Mexico

Measured by CONAGUA

Limited data

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Miguel Hidalgo Y Costilla Dam in Mexico has official water-quality measurements, shown as reported. Water clarity: 1.3 m visibility. Phosphorus: 65.6 µg/L. Chlorophyll-a (algae): 6.7 µg/L.

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How Miguel Hidalgo Y Costilla Dam is classified

Miguel Hidalgo Y Costilla Dam in Mexico 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 water clarity, phosphorus and algae (chlorophyll-a).

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

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

Miguel Hidalgo Y Costilla Dam is a lake in Unknown County, Mexico.

Source: the National Water Commission of Mexico (CONAGUA), via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2020-09-25. 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 Miguel Hidalgo Y Costilla Dam is safe to swim in today is a call for the National Water Commission of Mexico (CONAGUA), via UNEP GEMS/Water and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Miguel Hidalgo Y Costilla Dam

These are the measurements CONAGUA publishes for Miguel Hidalgo Y Costilla Dam. More on the source.

Murky, only visible to about 4.3 ft. Phosphorus 65.6 µg/L. Chlorophyll-a 6.7 µg/L. TSI 57.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	1.3m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	65.6µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	6.7µg/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.	57	Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

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Fishing Miguel Hidalgo Y Costilla Dam

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Frequently asked questions about Miguel Hidalgo Y Costilla Dam

Where is Miguel Hidalgo Y Costilla Dam?: Miguel Hidalgo Y Costilla Dam is a lake in Mexico. This page reports official water-quality measurements, shown as reported.
What is the water quality of Miguel Hidalgo Y Costilla Dam?: Miguel Hidalgo Y Costilla Dam in Mexico has official water-quality measurements, shown as reported. Water clarity: 1.3 m visibility. Phosphorus: 65.6 µg/L. Chlorophyll-a (algae): 6.7 µg/L.
Is Miguel Hidalgo Y Costilla Dam safe to swim in?: Miguel Hidalgo Y Costilla 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.

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Where this data comes from

23 measurements from 1 monitoring station, 2016–2020. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

Comisión Nacional del Aguacomisionnacionaldelagua23 samples · —

Analytical methods

GEMStat OPEN / CC BY 4.0

Monitoring station identifiers (1)

MEX03635

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