As of 8/29/2019, the District has posted a couple algae warning and danger signs per the State’s recommendation. The areas of concern are west of the Observatory, labeled with Warning and along Stanfield Cutoff, labeled as Danger. We are continuing our toxin testing and treating as needed. Keep in mind how quickly algae can grow and move. We are experiencing some windier conditions which could move algae cells. Continue to use caution and if it looks green and scummy, don’t go in it.

Click here for the State Water Board’s updated testing map for additional information.

The concerns of harmful algae blooms are going viral throughout the Nation. Although the stories range from abstract to some truth, it is important for everyone to be educated about the concerns of algae and public health. Most lakes this season including Big Bear Lake are seeing normal to above normal algae blooms due to the extreme run off of nutrients from the winter paired with very warm and calm weather. These blooms usually appear the heaviest in August when the lake mixes and can last several months. Although algae is always present in small numbers, blooms under the right conditions can spread very quickly. We monitor daily during summer months for algae present and have observed blooms from mid-July until current. With the current weather report, the likelihood of the algae increasing is likely.

The District recommends you use common sense and if it looks green and you observe a scum on the surface don’t go in or let your pets drink the water. If your pet goes in or you just want to take a ski run, take a shower and rinse your dog off. Ingesting the algae is never healthy and could cause stomach issues for you and your pet. Dogs will lick themselves clean after swimming in the Lake and combine that with drinking the water will magnify the toxins in the body. Remember, we do take water samples weekly or more often depending on conditions but the blooms can come very quickly and unannounced. So, the bottom line is use common sense and if it looks uninviting or you are uncertain, it probably should be avoided.

Lastly, if you have any concerns, please call our main office and be very cautious of using social media as your only source of information.

Click here for the OEHHA Blue-Green Algae Fact Sheet

Current Lake Conditions:

Lake Level: -11.18 feet below full (09/16/19)

Average Surface Temp: 65.54°F


Lake Management

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Public Launch Ramp Hours

fact or fiction

requests for proposals (rfp)

replenish big bear

Lake events

meeting information and minutes

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2019-2020 budget

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Residential dock program

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adopt-a-shoreline clean up project

What we do:

The mission of the Big Bear Municipal Water District is to maintain Big Bear Lake for recreation and wildlife.

Find out more about our departments and what we do for you and Big Bear Lake:

Big Bear Lake looking west from above Windy Point.

Big Bear Lake looking west from above Windy Point.

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Because we care about public input and consistent updates to our Bear Valley constituents, listed is our upcoming meeting schedule.


1st and 3rd Thursday


Regular Board Meeting