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Businesses that are located within Columbia South Shore and Cascade well fields and use hazardous chemicals in greater amounts than these thresholds are subject to annual reporting requirements.

  • 10 or more gallons of halogenated solvents
  • 30 or more gallons of hazardous waste
  • 50 gallons or more of hazardous materials (including petroleum products)

Use this website for easy annual reporting. Reports are due annually by January 31.

Log In and Report


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