GEORGETOWN COUNTY STORMWATER DIVISION Breakfast Series #1

1. GEORGETOWN COUNTY STORMWATER DIVISIONBreakfast Series #1 “How to Obtain A Stormwater Permit In Georgetown County” November 5, 2008

2. WELCOME GEORGETOWN COUNTY STORMWATER DIVISION • Tracy Jones, P.E., Stormwater Division Mgr • Zollie Green, P.E., Senior Engineer • Chris Allen, CEPSCI, Senior Inspector • Shelly Jordan, Billing Coordinator

3. Why Have A Stormwater Management Program? • Mandate by the U.S. Environmental Protection Agency (EPA) through South Carolina Department of Health and Environmental Control (DHEC) • Reduce the discharge of pollutants • Protect water quality

4. MS4 – Municiple Separate Storm Sewer System • The Storm Water Phase II rule was published on December 8, 1999, and generally requires operators of small MS4s in urbanized areas to develop and implement a storm water management program which addresses six (6) minimum control measures.

5. Six Minimum Control Measures • Public Education and Outreach • Public Participation and Involvement • Illicit Discharge Detection and Elimination • Construction Site Runoff Control • Post Construction Site Runoff Control • Pollution Prevention and Good Housekeeping

6. Georgetown County MS4 Permit Coverage • Georgetown County received its MS4 Permit Certificate of Coverage on September 1, 2008, after an appeal of the permit. The Appeal of the MS4 Permit gave Georgetown County the right: • Not to be a Qualified Local Program (QLP). • Not to perform reviews for DHEC/OCRM.

7. MS4 Permit Requirement MCM #4 Construction Site Stormwater Runoff Control • Goal: Reduce sediment discharges on sites that are one (1) acre or larger • Develop an ordinance to require erosion and sediment controls and ensure compliance • Requirements for construction site operators to control waste (discarded building materials, concrete truck washout, chemicals, litter, etc.) on site • Develop procedures for site plan review and site inspection which incorporate consideration of potential water quality impacts

8. MS4 Permit Requirement MCM #5 Post-Construction Stormwater Management • Reduce both pollutants and physical impact of new development resulting in land disturbance one (1) acre and greater, both structural and non-structural Best Management Practices (BMP’s) long term. • Structural BMP’s: detention pond, grassed swales, filter traps, infiltration basins • Non-structural BMP’s: policies and ordinances that require minimizing impervious area, buffers along sensitive areas, increase open spaces, offer education programs for developers re: low impact development, and ensure long-term maintenance of BMP’s

13. Conditional Letter of Approval (CLA) “ A review of the referenced project has been completed and the project meets the requirements of the Georgetown County Stormwater Ordinance. Due to additional permits needed such as the DHEC/OCRM NPDES General Permit coverage letter and the SCDOT Highway Encroachment Permit, conditional approval is given at this time.”

14. Preliminary Plan Review • New GC Plan Review Committee has been created. -Four County Departments discuss and review plans in the development phase. - Meetings once per month • GCSW strongly encourages preliminary plan review with staff. - Conceptual Ideas - Innovative Techniques/BMPs

15. Post-Construction Water Quality GCSW wants to encourage you to incorporate a water quality feature on every site plan. • Bioretention/Rain Garden • Infiltration techniques • Cisterns • Green roofs • Pervious Pavement • Constructed wetlands • Buffers

16. Georgetown County Stormwater Website • Stormwater Permit Application • Permit map • Flowcharts: outsideMS4 Area inside MS4 Area • SWPPP Templates: required on all sites 1 acre and above. • Submittal Checklists

17. Breakfast Series #2December 10, 2008

18. Questions?