character: Clean Water Act
topic: Federal legislation focused on water quality and pollution control
subject: Geography
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character: Environmental Protection Agency (EPA)
topic: Agency responsible for enforcing the Clean Water Act
subject: Geography
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character: Waters of the United States (WOTUS)
topic: Regulatory term for bodies of water protected under the Clean Water Act
subject: Geography
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character: National Pollutant Discharge Elimination System (NPDES)
topic: Permit program under the Clean Water Act to control water pollution
subject: Geography
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