Groverland Beach

Mercer Island, Washington
Managed by Puget Soundkeeper Alliance

Groveland Beach is located at SE 58th Street and 80th Ave SE.

Lifeguards: Groveland Beach will not have lifeguards during Summer 2016. Visit Luther Burbank beach for guarded swimming.

Amenities include:

Swimming
Picnicking
Barbeque area
Playground area for children
Restrooms (available during summer season only)

Pets are not allowed at public swim areas from May 1 to September 30. Outside of these times dogs are allowed on the beach but must be on a leash at all times

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:   
  • Report Pollution
MONITORING FREQUENCY

Groverland Beach is sampled weekly from May 1st to September 1st

SOURCE INFORMATION

The King County Department of Natural Resources and Parks monitors water quality at designated swimming beaches in the county from May to September. Water quality data is collected weekly, usually on Mondays. Results are generally posted to the King County Swimming Beach Bacteria Monitoring page 24 hours after the samples are collected.

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

Groverland Beach

Mercer Island, Washington
Managed by Puget Soundkeeper Alliance
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:   

Groveland Beach is located at SE 58th Street and 80th Ave SE.

Lifeguards: Groveland Beach will not have lifeguards during Summer 2016. Visit Luther Burbank beach for guarded swimming.

Amenities include:

Swimming
Picnicking
Barbeque area
Playground area for children
Restrooms (available during summer season only)

Pets are not allowed at public swim areas from May 1 to September 30. Outside of these times dogs are allowed on the beach but must be on a leash at all times

  • Report Pollution
MONITORING FREQUENCY

Groverland Beach is sampled weekly from May 1st to September 1st

SOURCE INFORMATION

The King County Department of Natural Resources and Parks monitors water quality at designated swimming beaches in the county from May to September. Water quality data is collected weekly, usually on Mondays. Results are generally posted to the King County Swimming Beach Bacteria Monitoring page 24 hours after the samples are collected.

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



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