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The City of Hanahan is a Municipal Separate Storm Sewer Systems (MS4) jurisdiction. The City has joined with Berkeley County in regards to the Stormwater Management Program. The goal is to develop, implement and enforce a Stormwater Management Program (SWMP) to reduce the discharge of pollutants from our MS4 to the maximum extent practicable (MEP), to protect water quality, and to satisfy the appropriate water quality requirements of the Clean Water Act. A new Permit was recently issued by SCDHEC which became effective on January 1, 2014. This new Permit replaces the 2006 Permit.

For Stormwater Plan Reviews for new construction, please contact the Berkeley County Engineering Department at (843) 723-3800.

Berkeley County Stormwater Management Program website:

Additional information and links can be found on Berkeley County’s website regarding Stormwater Management such as:

  • Stormwater Utility Fee Schedule
  • Stormwater Management Ordinance
  • Stormwater Fees
  • Stormwater Design Standards Manual
  • Construction Activity Application (CAA)
  • Checklist for CAA
  • Approval Process for CAA
  • Pollution Prevention/Good Housekeeping Manual


If you detect an illicit discharge please feel free to contact the Hanahan Building and Codes office at (843) 576-5259 to report.

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