Where is Laguna de Santiaguillo?

Laguna de Santiaguillo is a lake in Mexico. This page reports official water-quality measurements, shown as reported.

Is Laguna de Santiaguillo safe to swim in?

Laguna de Santiaguillo 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.

Laguna de Santiaguillo

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CONAGUA publishes the water-quality measurements for Laguna de Santiaguillo. Here is what has been measured.

Chlorophyll-a

16.5 µg/L

More algae than most

Measured by CONAGUA

Limited data

See the measurements Directions Where to stay

Laguna de Santiaguillo in Mexico has official water-quality measurements, shown as reported. Chlorophyll-a (algae): 16.5 µg/L.

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How Laguna de Santiaguillo is classified

Laguna de Santiaguillo 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 algae (chlorophyll-a), but not water clarity and phosphorus.

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.

Laguna de Santiaguillo 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 2016-03-15. 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 Laguna de Santiaguillo 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 Laguna de Santiaguillo

These are the measurements CONAGUA publishes for Laguna de Santiaguillo. More on the source.

No clarity data. Chlorophyll-a 16.5 µg/L. TSI 58.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)		No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus		No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	16.5µg/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

Ask about Laguna de Santiaguillo

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

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Fishing Laguna de Santiaguillo

→ Laguna de Santiaguillo fishing regulations (limits, seasons, special rules)

Frequently asked questions about Laguna de Santiaguillo

Where is Laguna de Santiaguillo?: Laguna de Santiaguillo is a lake in Mexico. This page reports official water-quality measurements, shown as reported.
What is the water quality of Laguna de Santiaguillo?: Laguna de Santiaguillo in Mexico has official water-quality measurements, shown as reported. Chlorophyll-a (algae): 16.5 µg/L.
Is Laguna de Santiaguillo safe to swim in?: Laguna de Santiaguillo 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.

Explore Laguna de Santiaguillo across LakeQuality

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Where this data comes from

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

Collected and reported by

Comisión Nacional del Aguacomisionnacionaldelagua1 sample · —

Analytical methods

GEMStat OPEN / CC BY 4.0

Monitoring station identifiers (1)

MEX00649

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