Wastewater discharge authorization for metal finishing businesses
The King County Industrial Waste Program (KCIW) issues waste discharge permits to metal finishing facilities that discharge wastewater to the King County sewage system.
Metal finishers are one of the largest industrial business sectors that we regulate, next to food processing. We work with metal finishers to ensure that discharges from these operations meet federal categorical pretreatment standards and the county's local limits for pollutants to protect human health, the environment, and the public's investment in wastewater facilities. Visit the Enivronmental Protection Agencies website to learn more about the EPA Metal Finishing Effluent Guidelines.
How to get formal authorization
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Complete the standard Industrial Waste Program Survey
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Include the Delegation of Signatory Authority form (if necessary)
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Complete the Metal Finishing Supplementary Questionaire
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Submit forms with required signatures to King County Industrial Waste
Print and sign the application. Scan the signed documents and email it to the King County Industrial Waste program at info.KCIW@kingcounty.gov.
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What happens after you submit your discharge authorization permit?
Wait to hear from the King County Industrial Waste program. They will review your forms and let you know next steps.
You may be asked to complete a Standard Industrial Waste Program Wastewater Discharge Permit Application. -
Reporting
Your permit or letter of authorization to discharge wastewater into the sewer system may require self-monitoring.
Visit the KCIW self-monitoring forms page for more information