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Forms for other "categorical" businesses (those federally regulated with pretreatment standards -- metals, plastics, chemicals, electronics, and many others):

We know that the industrial waste authorization and application process is complex. Please contact us if you have questions and our staff will be happy to assist you. If you have difficulty viewing or downloading documents, please visit Software Help.
other-categorical-processes
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206-477-5300

206-263-3001