Endocrine disrupting chemicals in the environment

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The following chart illustrates what gets removed with different wastewater treatment technologies.
The membrane bioreactor planned for the Brightwater and Carnation treatment plants remove more than
conventional sand filtration. Even this advanced treatment process is not expected to remove all contaminants
or EDCs. Higher levels of removal are possible but very expensive.

This Web page is also availabe as a PDF file (302KB).

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For questions about the Wastewater Treatment Division Web site, please send an e-mail message or contact us at:

Department of Natural Resources and Parks
Wastewater Treatment Division
201 S. Jackson St., Suite 505
Seattle, WA 98104-3855
Phone: 206-684-1280
Fax: 206-684-1741
Telecommunication device for the deaf (TTY): 711

Updated: Nov. 7, 2007