Construction sites in Wilmington must implement erosion and sediment controls under Delaware's statewide program, with plan approval required before clearing, grading, or excavation in regulated drainage areas.
Erosion and sediment control falls under DE Code Title 7 Chapter 40, administered locally through New Castle Conservation District. Builders must install silt fences, stabilized construction entrances, and seed disturbed areas promptly. Wilmington's hilly West Side and steep slopes feeding Brandywine Creek receive heightened scrutiny. Plans typically require certified inspection during major rain events. The city coordinates with state inspectors when violations affect public stormwater systems. Penalties escalate for repeat violators and unstabilized sites left through winter months.
Failure to install required controls or stabilize disturbed soil can result in stop-work orders, daily fines, and mandatory restoration of off-site sediment.
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See how Wilmington's erosion control rules stack up against other locations.
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