Where is Santa Rosa Iv Dam?

Santa Rosa Iv Dam is a lake in Mexico. This page reports official water-quality measurements, shown as reported.

Is Santa Rosa Iv Dam safe to swim in?

Santa Rosa Iv 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.

Santa Rosa Iv Dam

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CONAGUA publishes the water-quality measurements for Santa Rosa Iv Dam. Here is what has been measured.

Clarity

0.7 m

Typical for Mexico

Secchi · sampled 2021

Phosphorus

769.7 µg/L

More phosphorus than most

Measured by CONAGUA

Chlorophyll-a

16.9 µg/L

More algae than most

Measured by CONAGUA

Limited data

See the measurements Directions Where to stay

Santa Rosa Iv Dam in Mexico has official water-quality measurements, shown as reported. Water clarity: 0.7 m visibility. Phosphorus: 769.7 µg/L. Chlorophyll-a (algae): 16.9 µg/L.

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How Santa Rosa Iv Dam is classified

Santa Rosa Iv 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.

Santa Rosa Iv 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 2021-09-22. 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 Santa Rosa Iv 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 Santa Rosa Iv Dam

These are the measurements CONAGUA publishes for Santa Rosa Iv Dam. More on the source.

Very murky, less than 2.2 ft of visibility. Phosphorus 769.7 µg/L. Chlorophyll-a 16.9 µg/L. TSI 75.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	0.67m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	770µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	16.9µg/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.	75	Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic

Very high nutrients, dense algae, poor clarity

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Fishing Santa Rosa Iv Dam

→ Santa Rosa Iv Dam fishing regulations (limits, seasons, special rules)

Frequently asked questions about Santa Rosa Iv Dam

Where is Santa Rosa Iv Dam?: Santa Rosa Iv Dam is a lake in Mexico. This page reports official water-quality measurements, shown as reported.
What is the water quality of Santa Rosa Iv Dam?: Santa Rosa Iv Dam in Mexico has official water-quality measurements, shown as reported. Water clarity: 0.7 m visibility. Phosphorus: 769.7 µg/L. Chlorophyll-a (algae): 16.9 µg/L.
Is Santa Rosa Iv Dam safe to swim in?: Santa Rosa Iv 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

17 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 Aguacomisionnacionaldelagua17 samples · —

Analytical methods

GEMStat OPEN / CC BY 4.0

Monitoring station identifiers (1)

MEX03043

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