Omaha enforces comprehensive stormwater management under OMC Chapter 32 (Stormwater Management Ordinance). The city operates a Municipal Separate Storm Sewer System (MS4) under an NPDES permit. Development must meet post-construction stormwater quality and quantity standards administered by the Public Works Department.
OMC Chapter 32 requires all new development and redevelopment to prepare Stormwater Management Plans. The city mandates Best Management Practices (BMPs) for erosion and sediment control during construction and permanent stormwater quality controls post-construction. Omaha charges a stormwater utility fee based on impervious surface area. The city's CSO Long Term Control Plan addresses combined sewer overflows into the Missouri River. Projects disturbing one or more acres must obtain NPDES Construction Stormwater Permit coverage from the Nebraska DEQ.
Illicit discharges to the storm sewer system violate OMC Chapter 32 and are subject to fines up to $500 per day per violation. The city may issue stop-work orders for construction sites lacking required erosion controls. Repeat violations may result in permit revocation.
Omaha, NE
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Omaha, NE
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Omaha, NE
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Omaha, NE
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Omaha, NE
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Omaha, NE
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See how Omaha's stormwater management rules stack up against other locations.
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