Where is Laguna Todos Santos?

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

Is Laguna Todos Santos safe to swim in?

Laguna Todos Santos 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 Todos Santos

MexicoView map Directions

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

Clarity

0.3 m

Murkier than most

Secchi · sampled 2021

Phosphorus

444.1 µg/L

More phosphorus than most

Measured by CONAGUA

Chlorophyll-a

4.8 µg/L

Typical for Mexico

Measured by CONAGUA

Limited data

See the measurements Directions Where to stay

Laguna Todos Santos in Mexico has official water-quality measurements, shown as reported. Water clarity: 0.3 m visibility. Phosphorus: 444.1 µg/L. Chlorophyll-a (algae): 4.8 µg/L.

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How Laguna Todos Santos is classified

Laguna Todos Santos 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.

Laguna Todos Santos 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 2021-09-15. 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 Todos Santos 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 Todos Santos

These are the measurements CONAGUA publishes for Laguna Todos Santos. More on the source.

Very murky, less than 0.8 ft of visibility. Phosphorus 444.1 µg/L. Chlorophyll-a 4.8 µg/L. TSI 73.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	0.25m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	444µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	4.8µg/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.	73	Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic

Very high nutrients, dense algae, poor clarity

Ask about Laguna Todos Santos

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

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Fishing Laguna Todos Santos

→ Laguna Todos Santos fishing regulations (limits, seasons, special rules)

Frequently asked questions about Laguna Todos Santos

Where is Laguna Todos Santos?: Laguna Todos Santos is a lake in Mexico. This page reports official water-quality measurements, shown as reported.
What is the water quality of Laguna Todos Santos?: Laguna Todos Santos in Mexico has official water-quality measurements, shown as reported. Water clarity: 0.3 m visibility. Phosphorus: 444.1 µg/L. Chlorophyll-a (algae): 4.8 µg/L.
Is Laguna Todos Santos safe to swim in?: Laguna Todos Santos 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

34 measurements from 1 monitoring station, 2016–2021. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

Comisión Nacional del Aguacomisionnacionaldelagua34 samples · —

Analytical methods

GEMStat OPEN / CC BY 4.0

Monitoring station identifiers (1)

MEX04986

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