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See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Minnesota's effluent limitation regulations generally follow the federal Clean Water Act (CWA). In addition to the federal standards, Minnesota's effluent standards apply to more discharges than under federal requirements.
• Administration and enforcement. MPCA is responsible for enforcing the state's effluent discharge regulations.
Anyone who discharges industrial or other wastes from point sources and nonpoint sources to all waters of the state, both surface and underground, in Minnesota must comply with the effluent limitation standards.
The following are the general requirements for all discharges to waters of the state, in addition to the federal requirements:
No untreated sewage may be discharged into any waters of the state.
No sewage, industrial waste, or other wastes may be discharged from either point or nonpoint sources into any waters of the state that would cause any nuisance conditions, such as the presence of significant amounts of floating solids, scum, visible oil film, ...