Stormwater Information

Office Hours: 8:00 am to 3:00 pm, Monday - Friday Summerville Phone: 843-832-0070 or 843-832-0087 St. George Phone: 843-563-0070 or 843-563-0087 E-mail Mailing Address & Location: 2120 East Main St., Dorchester, SC 29437

• Urbanized Area Map: Dorchester County’s MS4 Area [PDF]
• Ordinance: 07-21 Stormwater Ordinance [PDF]
• Manual: Design Manual [PDF]
• 01: Application [PDF]
• 02: Stormwater Design Checklist [PDF]
• 03: EPSC [PDF] (Complete if Applicable)
• 04: Plan Review Checklist [PDF]
• 05: Operating & Maintenance Agreement [PDF]
• 06: Pond Maintenance Agreement [PDF]
• 07: Pond Maintenance Plan [PDF]
• 08: As-Built Checklist [PDF]
• 09: Close Out Application [PDF]
• 10: Transfer of Ownership [PDF]

Please call or e-mail with all inquires. Meetings will be scheduled if needed at the Public Works office or onsite.

General Information

• Stormwater Information
• Questions and Answers [PDF]
• EPA Overview of the Storm Water Program [PDF]
• Dorchester County NPDES Phase II Storm Water Permit Application [PDF]

Flood Insurance Rate Map Zone Information

As a public service, Dorchester County will provide you with the following information upon request:

• Whether a property is in or out of the Special Flood Hazard Area (SFHA) as shown on the current Flood Insurance Rate Map (FIRM) of the County.
• Additional flood insurance data for a site, such as the Firm zone and the base flood elevation or depth, if shown on the FIRM.
• We have a handout on the flood insurance purchase requirement that can help people who need a mortgage or loan for a property in the SFHA.

Outreach Information:

• Mandatory Purchase of Flood Insurance [PDF]
• Flood Awareness [PDF]
• Check Before you Buy [PDF]
• Find a Contractor [PDF]

If you would like to make an inquiry, please contact us between 8:00 am to 3:00 pm, Monday - Friday at 843-832-0087 or 843-563-0087 and provide the street address and tax map number (TMS) of the property. There is no charge for this service.