Gene Coulon

Hours: 7:00 a.m. to Dusk

Gene Coulon Memorial Beach Park (originally Lake Washington Beach Park) consists of 57 acres of land and water at the southeast corner of Lake Washington. The park offers a unique opportunity for water-related recreational enjoyment. Animals, alcohol, rollerblades, skateboard, and bike touring are not allowed at Gene Coulon Memorial Beach Park. Bikes must yield to pedestrians and stay on the roadway. Enjoy Clam Lights, Kids Fishing Derbies, Annual 4th of July festivities, and the Kidd Valley Summer Concert Series at Coulon Beach Park. For additional information, call the Renton Community Center at 425-430-6700. View a map with picnic shelter locations and parking lots.

The swimming beach at Coulon Beach Park opens for the season in mid-June. Lifeguards will be on duty daily from 12:00 p.m. to 8:00 p.m. through Labor Day.

Amenities:

Eight boat-launch lanes (Credit and/or debit cards accepted only.)
Four picnic shelters (reservations required)
Playground equipment
Two tennis courts
Horseshoe pits
Two sand volleyball courts
Interpretive botanical walk
Fishing pier
IVARS and KIDD VALLEY food concessions
Water walk
Over 1.5 miles of paved walking trails along the shoreline
Access to the Lake Washington Loop Trail on Lake Washington Boulevard
ADA accessible

Get directions to this beach

WATER QUALITY

Failed to meet water quality standards
Current Status
This status is based on the latest sample, taken on July 18th, 2019. 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

28°C

Clear and sunny

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 use the following protocol to make closure determinations – A day’s average E. coli value is over 1000 CFU/100 mL – OR - The average of the E. coli values for the three most recent sampling days is over 200 CFU/100 mL. The three-day average is calculated using the geometric mean (geomean). The unit of measure is a CFU which stands for Colony Forming Units.

A beach is marked Green (open) when both of these protocols are met.
A beach is marked Red (closed) when these criteria are not met and the public health officials have closed the beach.

A beach may also be marked Red if there is a Harmful Algal Bloom (HAB) reported at the beach. A beach is marked Grey when current water quality data is not available. The King County Water and Land Resources Division (WLRD) collects and analyzes the samples. Public Health Seattle & King County is alerted when bacteria or state algal toxin thresholds are exceeded and determines the health and safety implications of the bacteria and algal toxin data collected, and they work with King County WLRD and the local park manager to post an advisory.

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

WATER QUALITY GRAPH

Gene Coulon

Renton, Washington

Managed by Puget Soundkeeper Alliance

WATER QUALITY

Failed to meet water quality standards
Current Status
This status is based on the latest sample, taken on July 18th, 2019. 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

28°C

Clear and sunny

MONITORING FREQUENCY

SOURCE INFORMATION

WATER QUALITY GRAPH

Beach	Location	Water Quality
Kennydale Beach Park Renton, Washington	Renton, Washington	Current Status
Pritchard Island Beach Seattle, Washington	Seattle, Washington	Current Status
Groverland Beach Mercer Island, Washington	Mercer Island, Washington	Historical Status
Andrews Bay - Seward Park Seattle, Washington	Seattle, Washington	Current Status

Other Beaches Near This One

Beach	Location	Water Quality
Kennydale Beach Park Renton, Washington	Renton, Washington	Current Status
Pritchard Island Beach Seattle, Washington	Seattle, Washington	Current Status
Groverland Beach Mercer Island, Washington	Mercer Island, Washington	Historical Status
Andrews Bay - Seward Park Seattle, Washington	Seattle, Washington	Current Status

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	Green means the beach’s most recent test results met relevant water quality standards.

	Red means the beach’s most recent test results failed to meet water quality standards.

	Grey means water quality information for the beach is too old (more than 7 days old) to be considered current, or that info is unavailable, or unreliable.

	Green means the beach passed water quality tests 95% of the time or more.

	Yellow means the beach passed water quality tests 60-95% of the time.

	Red means the beach failed water quality tests 40% of the time or more.

	Green means the beach has historically excellent or pristine water quality, but there is no current data.

	Red means the water at the site has water quality issues or there is an emergency.

	Grey means there is no current water quality information, the beach is under construction, there has been an event that has rendered water quality information unreliable or unavailable.