Does this apply to my home addition project?

Only if the disturbance reaches one acre or is part of a common plan of development totaling one acre. Smaller residential projects are typically exempt from state permitting.

Who issues the stormwater permit, the state or my city?

DHEC issues permits unless your local government has been delegated as a Qualifying Local Program. Either way, state minimum standards apply.

What happens if I disturb land without a permit?

DHEC can issue stop-work orders and civil penalties up to $1,000 per day per violation. You may also be required to restore the site.

South Carolina Stormwater Management (2026)

Key Facts

Governing statute: SC Code Title 48-14
Permit threshold: 1 acre disturbance
Maximum civil penalty: $1,000 per day
Plan required: Before land disturbance
Regulator: SC DHEC Bureau of Water

Source: South Carolina Legislature

Full Breakdown

Under SC Code Title 48, Chapter 14, any land-disturbing activity disturbing one acre or more requires a stormwater management plan and NPDES Construction General Permit coverage. Plans must include erosion and sediment control measures, post-construction stormwater controls, and inspection schedules. DHEC delegates implementation to local governments that adopt qualifying programs, but minimum technical standards are set statewide. Discharges to impaired waters or coastal areas may trigger additional requirements. Permit holders must self-inspect, maintain records, and submit a Notice of Termination upon stabilization.

Violations & Penalties

DHEC enforcement includes administrative orders, civil penalties up to $1,000 per day per violation under SC Code 48-14-150, and stop-work orders. Willful violations may be criminally prosecuted.

South Carolina Stormwater Management Act Requirements

Key Facts

Full Breakdown

Violations & Penalties

Frequently Asked Questions

Sources

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