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. Reporting for 2020 is now open. Reports for 2020 are due by January 31, 2021.
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