Charleston Sewer Main Broke on Daniel Island
A significant sewer main break has triggered a public safety advisory near the Mark Clark Expressway.
Updated on Sept. 26, 2026 in Utilities
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Charleston Water System confirmed that a 24-inch sewer main broke on Daniel Island. Residents are being advised to avoid water contact in the area near Beresford Creek and the Mark Clark Expressway while repairs are underway.
Why it matters
The break requires immediate containment to prevent environmental impact in the affected waterways. Officials are monitoring the site until water bacteria levels are restored to safe standards.
The incident involved a 24-inch sewer main located on Daniel Island. Repairs are currently in progress to restore the damaged infrastructure.
The players
Charleston Water System
This public utility provides water and wastewater services to the city of Charleston and surrounding communities.
South Carolina Department of Environmental Services
This state agency oversees environmental protection and regulatory compliance for water quality across South Carolina.
The details
Charleston Water System crews are actively working to repair the breach located near the Mark Clark Expressway. The South Carolina Department of Environmental Services has been notified of the spill to ensure proper regulatory oversight during the cleanup process.
Timeline
September 25, 2026: Charleston Water System reported the sewer main break.
Market Landscape
This incident highlights the ongoing challenges of maintaining aging critical infrastructure within rapidly developing urban corridors. It underscores the operational risks utility providers face in balancing infrastructure integrity with environmental stewardship mandates.
Residents and visitors in the Daniel Island area must avoid all water contact near the affected site to prevent potential health risks. Local authorities will update the public when bacteria levels have safely returned to normal.
The takeaway
Public safety depends on adhering to local utility advisories until environmental remediation is confirmed as complete. Residents should stay alert for further updates from the city as repair crews stabilize the infrastructure.
Further reading
For more information on regional utility services, visit Charleston Utilities.
Source note: This article includes information reported by WCBD 2 - Charleston.
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