Who to call about a drainage problem in Mount Pleasant

Town of Mount Pleasant Stormwater Office: 843-856-2157. The Town publishes: 'Blockages or flooded areas can be reported to the Stormwater Office at 843-856-2157 for investigation and cleaning.' For illegal dumping, illicit discharges or water quality concerns: Stormwater - Water Quality Division, 100 Ann Edwards Lane, Mount Pleasant SC 29464, office 843-884-8517 or 843-856-2157, fax 843-849-2760, waterquality@tompsc.com — the Town asks for location, date, time and details. There is also an online 'Report a Concern' form through Engineering & Development Services. The Town's published description of its own stormwater function: 'The Town has a complex storm drainage system composed of open ditches and closed pipe sections. These systems may be owned by the Town, State, the County, or private property owners. To accomplish this, the Town inspects major ditch systems twice a year and cleans systems as needed or reported.' That ownership sentence is the buyer-relevant part: the ditch behind a lot may be the owner's to maintain, and altering it (piping a ditch, connecting yard drains, regrading, installing utilities) requires an encroachment permit reviewed by the Engineering & Environmental Division, whose Deputy Director is listed as Kevin Mitchell. Building/floodplain questions go to a different number: Building Inspection Division, 843-884-5184, which has a floodplain manager on staff. Checked 2026-09-04.