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Request for Chemical Treatment

Form number Date Published Date Revised
ECY 070-258 August 2007 April 2021
VIEW NOW Request for Chemical Treatment (Number of pages: 3) (Publication Size: 243KB)

Microsoft Word format (Publication Size: 77KB)

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Description Stormwater permittees (Construction and Industrial) must submit this form to Ecology to request approval to use a chemical treatment system for Stormwater water quality treatment. Permittees use chemical treatment as a temporary BMP on construction sites but may also use these systems more permanently on Industrial sites.
REQUEST A COPY The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.

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Visit Ecology’s website for more information
Contact Doug Howie at 360-870-0983 or
Keywords chemical treatment, construction stormwater, Water Quality form, Official Ecology Form
WEB PAGE Guidance for Contaminated Water on Construction Sites