Where is Lake Zirahuen Main Spring?

Lake Zirahuen Main Spring is a lake in Mexico. This page reports official water-quality measurements, shown as reported.

Is Lake Zirahuen Main Spring safe to swim in?

Lake Zirahuen Main Spring 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.

Lake Zirahuen Main Spring

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CONAGUA publishes the water-quality measurements for Lake Zirahuen Main Spring. Here is what has been measured.

Clarity

2.7 m

Clearer than most

Secchi · sampled 2021

Phosphorus

631 µg/L

More phosphorus than most

Measured by CONAGUA

Chlorophyll-a

1.6 µg/L

Less algae than most

Measured by CONAGUA

Limited data

See the measurements Directions Where to stay

Lake Zirahuen Main Spring in Mexico has official water-quality measurements, shown as reported. Water clarity: 2.7 m visibility. Phosphorus: 631 µg/L. Chlorophyll-a (algae): 1.6 µg/L.

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How Lake Zirahuen Main Spring is classified

Lake Zirahuen Main Spring 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.

Lake Zirahuen Main Spring 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 2021-09-28. 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 Lake Zirahuen Main Spring 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 Lake Zirahuen Main Spring

These are the measurements CONAGUA publishes for Lake Zirahuen Main Spring. More on the source.

Moderate clarity, visible to about 8.9 ft. Phosphorus 631 µg/L. Chlorophyll-a 1.6 µg/L. TSI 59.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2.73m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	631µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	1.6µg/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.	59	Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

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Fishing Lake Zirahuen Main Spring

→ Lake Zirahuen Main Spring fishing regulations (limits, seasons, special rules)

Frequently asked questions about Lake Zirahuen Main Spring

Where is Lake Zirahuen Main Spring?: Lake Zirahuen Main Spring is a lake in Mexico. This page reports official water-quality measurements, shown as reported.
What is the water quality of Lake Zirahuen Main Spring?: Lake Zirahuen Main Spring in Mexico has official water-quality measurements, shown as reported. Water clarity: 2.7 m visibility. Phosphorus: 631 µg/L. Chlorophyll-a (algae): 1.6 µg/L.
Is Lake Zirahuen Main Spring safe to swim in?: Lake Zirahuen Main Spring 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

25 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 Aguacomisionnacionaldelagua25 samples · —

Analytical methods

GEMStat OPEN / CC BY 4.0

Monitoring station identifiers (1)

MEX01373

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