Lake · McKinley County · NM
Is Laguna Grande safe to swim?
No advisory or algae bloom reported for this water today.
Updated July 20, 2026 · EPA CyAN satellite
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What's in the water at Laguna Grande right now
As of July 20, 2026, Laguna Grande in McKinley County, New Mexico is clear to swim. Satellite imagery detected no blue-green algae bloom as of July 19, 2026. Rainfall over the past week totaled 0.6 in, which can wash bacteria and nutrients into the water.
Blue-green algae at Laguna Grande
Laguna Grande is a lake in McKinley County, New Mexico covering about 0.5 sq mi, the 22nd-largest of the 24 lakes SwimZone monitors in New Mexico. Satellite imagery detected no blue-green algae bloom as of July 19, 2026.
Blue-green algae (cyanobacteria) blooms are most common from midsummer into early fall, when the water is warm, calm, and rich in nutrients from runoff. They can produce toxins that make people sick and can be rapidly fatal to dogs, so skip water that looks green, scummy, or like spilled paint, and keep children and pets out of it.
Frequently asked: swimming in Laguna Grande
- Is it safe to swim in Laguna Grande right now?
- Laguna Grande is clear to swim today. Satellite imagery detected no blue-green algae bloom as of July 19, 2026. Conditions can change quickly with wind, heat, and rain, so check the posted signs and look at the water before you get in.
- Does Laguna Grande have blue-green algae (cyanobacteria)?
- No blue-green algae bloom is detectable at Laguna Grande as of July 19, 2026 (below the satellite's roughly 10,000 cells/mL detection limit). Cyanobacteria can still appear within hours in warm, calm, nutrient-rich water, so look before you swim.
- Can dogs swim in Laguna Grande?
- No bloom is detected at Laguna Grande today, but dogs are much more vulnerable to blue-green algae than people, and blooms can form within hours. Always keep dogs away from water that looks green, scummy, or discolored, and rinse them off after swimming.
- How many New Mexico lakes and beaches are unsafe for swimming today?
- Today, 4 New Mexico waters are above a safe-contact threshold and 0 more warrant caution, out of 27 monitored waters SwimZone tracks in the state.
- How is Laguna Grande's water quality measured?
- SwimZone builds this read from EPA CyAN satellite imagery for blue-green algae, official beach and fecal-bacteria advisories where a program monitors Laguna Grande, and a recent-rainfall overlay, all refreshed daily. It was last updated July 20, 2026.