Stormwater Management
Stormwater management plan requirements. The stormwater management plan shall detail how post-development stormwater runoff will be controlled or managed and how the proposed project will meet the requirements of the regulations.
This plan shall be prepared under the direct supervisory control of either a registered professional engineer or a registered landscape architect licensed in the State of Georgia. Portions of the overall plan may be prepared and stamped by a registered land surveyor licensed in the state of Georgia as appropriate, such as boundary surveys, contour maps, erosion and sedimentation control plans.
The stormwater management plan must ensure that the requirements and criteria are being complied with and that opportunities are being taken to minimize adverse post-development stormwater runoff impacts from the development. The plan shall consist of maps, narrative, and supporting design calculations (hydrologic and hydraulic) for the proposed stormwater management system. The plan shall include all of the information required in the stormwater management site plan checklist found in the stormwater design manual.
Best Management Practices for any activity, operation, or facility which may cause or contribute to pollution or contamination of storm water, the Dawson County Separate Storm Sewer System, or Waters of the State of Georgia and or Waters of the U.S. shall be observed by the owner of any property discharging into the Dawson County Separate Storm Sewer System. The owner or operator of a commercial or industrial establishment shall provide, at their own expense, reasonable protection from accidental discharge of prohibited materials or other wastes into the Dawson County Separate Storm Sewer System or watercourses through the use of these structural and non-structural BMPs. Further, any person responsible for a property or premise, which is, or may be, the source of an illicit discharge, may be required to implement, at said person's expense, additional structural and non-structural BMPs to prevent the further discharge of pollutants to the Dawson County Separate Storm Sewer System. Compliance with all terms and conditions of a valid NPDES permit authorizing the discharge of storm water associated with industrial activity, to the extent practicable, shall be deemed compliance with the provisions of this section. These BMPs shall be part of a stormwater pollution prevention plan (SWPP) as necessary for compliance with requirements of the NPDES permit.
Additionally, all land disturbance activities, with the exception of agricultural activities such as plowing or harrowing, must have a soil erosion plan/permit. Permits shall be issued by the department of planning and development. Applicants must provide an application for grading permits which includes, but is not limited to, the size of the lot to be graded, the amount of land disturbance, the purpose of the grading, the owner of the lot, the location of the lot, and the erosion control measures to be used.
