Station 18 1/2 (TRI-059)

Photo by Ian Crowther

Sullivan’s Island is the first barrier island north of the Charleston Harbor and prides itself on being a relaxed residential environment with no beachfront commercial development. Remnants of the island’s long military history litter the coast, giving the beach a distinct personality. Street parking is allowed unless otherwise stated. Dogs are required to have a current permit from the Town Hall (1610 Middle St.). Times that dogs are allowed on the beach, on and off the leash, vary depending on the season. For more information visit http://www.sullivansisland-sc.com.

WATER QUALITY

Passed water quality tests at least 95% of the time
Historical Status
This status is based on the latest sample, taken on . Charleston Waterkeeper 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

30°C

Mostly clear

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MONITORING FREQUENCY

SOURCE INFORMATION

DHEC monitors 27 sites at our local beaches (Isle of Palms, Sullivan’s Island, Folly Beach, Kiawah, and Seabrook). Monitoring sites are located near public access points to ensure the public’s safety. DHEC monitors our local beaches twice a month. When sample results are published on the Program’s website, Charleston Waterkeeper updates Swim Guide.

A “Green” site = test result of 103 MPN/100 mL or lower OR a test result between 104 and 500 MPN/100 mL followed by a test result the next day of LESS than 104 MPN/100 mL

A “Red” site = a test result of 500 MPN/100 mL or higher OR a test result between 104 and 500 MPN/100 mL followed by a test result the next day of 104 MPN/100 mL or GREATER

A “Gray” site = no test result

WATER QUALITY GRAPH