Any project, no matter the size, that plans to discharge water to surface waters of the state requires coverage under the General Surface Water Discharge Permit for Temporary Discharge Activities (General Permit). The General Permit is meant for projects where the discharge will occur for one year or less and is relatively uncontaminated waters. Projects that will discharge for longer than one year, or which will have recurring yearly discharges, will need to apply for coverage under an alternative discharge permit, which can be found on the Surface Water Discharge Permits webpage.
The following are examples of discharges covered under this General Permit:
Please make sure to read through the permit and contact the Stormwater Team with any questions or concerns. To obtain coverage under the Temporary Discharge Permit, a Notice of Intent must be submitted at least 15 days prior to the start of the dewatering project. If you are already dewatering, please submit your application immediately. Please make sure to reach out to the city, if you are within city limits, or the county to verify any additional requirements.
If you have an active stormwater permit for construction activities for a project, please visit the Stormwater Construction page to determine what information is needed to add temporary discharge activities to your current stormwater construction permit. This does not apply if you will be doing hydrostatic testing.
Pollution Prevention Plan - You may develop and implement a Pollution Prevention Plan in lieu of sampling for Total Suspended Solids (TSS) and/or Total Residual Chlorine (TRC). The plan must detail the Best Management Practices (BMPs) you will use to reduce or eliminate any discharge of pollutants and include a site description and site map in accordance with Section 4.0 of the General Permit.
Stormwater Team Contact Information:
Form Submission Information (Choose one option):
Department of Agriculture & Natural Resources
Water Quality - Stormwater Team
523 E Capitol Ave
Pierre SD 57501