Beaver Lake Beach

Transferred to the city of Sammamish on January 1, 2003, Beaver Lake Park offers opportunities for recreation, hiking, and exploring its 54 forested acres. In addition, Beaver Lake is an attractive fishing spot.

Facilities include a large pavilion and lodge with ADA accessible public restrooms on the north side; and three ball fields, a picnic shelter, play structure, and restrooms on the south side. Unpaved hiking paths connect the north and south sides of the park.

The Lodge at Beaver Lake is a Northwest log building, which houses weddings, private parties and meetings. Discounted rates are available to eligible community groups for use during the weekdays and Monday through Thursday evenings.

WATER QUALITY

Passed water quality tests at least 95% of the time
Historical Status
This status is based on the latest sample, taken on August 28th, 2018. Puget Soundkeeper Alliance updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at

For water quality icon legend, click:

CURRENT WEATHER

7°C

Chance of heavy rain

Report Pollution

MONITORING FREQUENCY

SOURCE INFORMATION

During the sampling period, Puget Soundkeeper Alliance regularly updates the Swim Guide to reflect the most current information.

Local health officials follow the Ten State Standard –a geometric mean of 200 fecal coliforms with no single sample exceeding 1000 – to determine whether a swimming beach is polluted. The unit of measure is a CFU which stands for Colony Forming Units.

A beach is marked Green (open) when a single sample is below 1000 CFU/100ml and the geometric mean of the five most recent samples is below 200 CFU/100ml.

A beach is marked Red (closed) when either a single sample exceeds 1000 CFU/100ml or a geometric mean of the five most recent samples exceed 200 CFU/100ml

A beach is marked Grey when current water quality data is not available.

If a sample is found to exceed the Ten State Standard three new samples are collected. If the average of these samples confirms the results from the routine sample, Public Health Seattle & King County is alerted and determines the health and safety implications of the bacteria and algal toxin data collected and works with King County and the local park manager to post an advisory.

For more information go to King County Swimming Beach Bacteria Monitoring website: http://green2.kingcounty.gov/swimbeach/

WATER QUALITY GRAPH