Advisory updates and other information to encourage safe recreation

June 21st 2024

NO CURRENT ADVISORY

• Battle Ground Lake
• Vancouver Lake
• Klineline Pond
• Round Lake
• Lacamas Lake

*BE AWARE*: cyanobacteria was seen forming in the water at Lacamas and Round Lakes on 6/17, though no significant bloom was observed. If a bloom is observed please notify us.

There are no current advisories at these lakes. To report a suspected harmful algal bloom or other water quality concern, go here.

Next Sampling Dates

• E.coli (bacteria): June 24th 2024
• Harmful Algae (cyanobacteria): no blooms reported or observed by CCPH staff yet.

Spot the difference! Not everything green in the water is a harmful algal bloom - here are some examples of harmful algal blooms (caused by cyanobacteria), and other common aquatic plants.

Harmful algal bloom: can have the appearance of pea soup obscuring the water.

Harmful algal bloom: can appear green, brown, rusty red, or even blue in color.

Harmful algal bloom: can look like a spill on the surface of the water.

NOT a harmful algal bloom: Aquatic green algae often appears spongy and stringy forming irregular clumps.

NOT a harmful algal bloom: Duckweed looks like tiny floating leaves often creating a solid layer on the surface of the water.

NOT a harmful algal bloom: Rooted aquatic plants grow from the lake bottom. Caution: can cause entanglement!

To stay up to date on our harmful algal bloom monitoring, follow us on Facebook or Twitter.

Our weekly newsletter updates will continue through Labor Day 2024, our monitoring of blooms will continue through this fall. Follow us on Facebook and Twitter for advisory updates.

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Clark County Public Health | clark.wa.gov/public-health

1601 E. Fourth Plain Blvd, Building 17

Vancouver, WA 98661