Is it OK to swim in a lake after it rains?

Bacteria - Refrain from swimming after flooding or heavy rains. Unlike swimming pools, natural waters are not chlorinated or disinfected. The risk of bacterial infection increases after heavy rains due to hazardous matter washing into the lakes and streams.



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Stay out of the water if Cloudy water can be a warning that there are more germs in the water than normal. Discolored or smelly water could mean there is a harmful algal bloom (HAB) in the water.

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Know before you go Before you head out, check online to find out if the swim area is currently monitored, is under advisory, or has been closed for health or safety reasons. This is especially important after a heavy rain.

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Fast-moving currents, waves and rapids, even in shallow water. Hazards, such as dams, underwater obstacles, or rocks and debris. Vegetation, animals and fish. Drop-offs that can unexpectedly change water depth.

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The reality of being 'water-happy' is that your hair will suffer the consequences. If we have to take our pick, fresh water from a river or a lake is the least damaging amongst all water sources. But, just by virtue of being wet, strands are 3 times weaker and more prone to breakage.

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If there is scum or algae visible in the water, it won't be clean enough to swim in. There are also natural hazards to outdoor waters compared with pools, especially in the summer. Blue-green algae is a type of bacteria naturally found in lake ecosystems.

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Washing oneself with soap of any kind in a lake, pond, river, or ocean is terrible for the environment. Even if the bottle is labeled biodegradable, natural, or organic, it's still bad.

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