Advisory updates and other information to encourage safe recreation

October 17th, 2025

NO CURRENT ADVISORY

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

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

*Blooms conditions are present and being monitored at Lacamas Lake. Toxins are below advisory threshold but always avoid areas of scum.

WARNING ADVISORY

• None



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

DANGER ADVISORY



• None

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): May 2026
• Harmful Algae (cyanobacteria): May 2026

This will be the last newsletter of 2025. The newsletter will resume in May 2026 when we resume sampling. If conditions change, we will update advisory statuses on our website and social media. If you see conditions at a lake or river that are concerning, please contact us and we will investigate. See pictures of some of this years blooms below.

2 types of cyanobacteria at Vancouver Lake 07/2025

1 type of cyanobacteria at Lacamas Lake 06/2025

3 types of cyanobacteria and pollen at Round Lake 08/2025

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 2025, 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