Where is Blue Lake San Miguel Regla?

Blue Lake San Miguel Regla is a lake in Mexico. This page reports official water-quality measurements, shown as reported.

Is Blue Lake San Miguel Regla safe to swim in?

Blue Lake San Miguel Regla 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.

Blue Lake San Miguel Regla

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CONAGUA publishes the water-quality measurements for Blue Lake San Miguel Regla. Here is what has been measured.

Clarity

0.9 m

Typical for Mexico

Secchi · sampled 2020

Phosphorus

95 µg/L

Typical for Mexico

Measured by CONAGUA

Chlorophyll-a

2.8 µg/L

Less algae than most

Measured by CONAGUA

Limited data

See the measurements Directions Where to stay

Blue Lake San Miguel Regla in Mexico has official water-quality measurements, shown as reported. Water clarity: 0.9 m visibility. Phosphorus: 95 µg/L. Chlorophyll-a (algae): 2.8 µg/L.

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How Blue Lake San Miguel Regla is classified

Blue Lake San Miguel Regla 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.

Blue Lake San Miguel Regla 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 2020-09-23. 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 Blue Lake San Miguel Regla 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 Blue Lake San Miguel Regla

These are the measurements CONAGUA publishes for Blue Lake San Miguel Regla. More on the source.

Very murky, less than 2.9 ft of visibility. Phosphorus 95 µg/L. Chlorophyll-a 2.8 µg/L. TSI 58.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	0.87m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	95µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	2.8µg/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.	58	Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

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

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Fishing Blue Lake San Miguel Regla

→ Blue Lake San Miguel Regla fishing regulations (limits, seasons, special rules)

Frequently asked questions about Blue Lake San Miguel Regla

Where is Blue Lake San Miguel Regla?: Blue Lake San Miguel Regla is a lake in Mexico. This page reports official water-quality measurements, shown as reported.
What is the water quality of Blue Lake San Miguel Regla?: Blue Lake San Miguel Regla in Mexico has official water-quality measurements, shown as reported. Water clarity: 0.9 m visibility. Phosphorus: 95 µg/L. Chlorophyll-a (algae): 2.8 µg/L.
Is Blue Lake San Miguel Regla safe to swim in?: Blue Lake San Miguel Regla 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

20 measurements from 1 monitoring station, 2017–2020. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

Comisión Nacional del Aguacomisionnacionaldelagua20 samples · —

Analytical methods

GEMStat OPEN / CC BY 4.0

Monitoring station identifiers (1)

MEX01207

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