Effective April 1, 2018, South Dakota’s General Permit for Stormwater Discharges Associated with Construction Activities was reissued. New applications for permits must be submitted at least 15 days prior to the project start date on the new forms beginning May 1, 2018. The 2018 South Dakota Legislature also passed Senate Bill 25 which authorized new stormwater permit fees. Effective July 1, 2018, new construction Notice of Intents (NOIs) must include the new fee.
The new stormwater discharge permit included new requirements for a stormwater pollution prevention plan, or SWPPP. Existing Stormwater Pollution Prevention Plans need to be updated by October 1, 2018.For projects that discharge stormwater to a water body listed as impaired under section 303(d) of the Federal Clean Water Act due to sediment, suspended solids, or turbidity, the SWPPP must identify the water body and impairment and must describe and conform to any Wasteload Allocation (WLA) for the water body.
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