King County Water District #90
15606 SE 128th Street
Renton, WA 98059
425-255-9600 Office
425-277-4128 Fax
Contact via E-mail

Water District #90 Publications Library

Stay current on Water Quality reports, newsletters and our annual report.

April 26, 2018KCWD90 Cross-Connection Control Program per WAC 246 290 490

April 24, 2018Reduced Pressure Backflow Assembly RPBA

PDF Format
Reduced Pressure Backflow Assembly RPBA
247 kb • April 24, 2018

April 15, 20192019 Backflow Testers

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2019 Backflow Testers
107 kb • April 15, 2019

April 24, 20182018 Backflow FAQ

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2018 Backflow FAQ
97 kb • April 24, 2018

April 24, 20182018 Backflow Test Report

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2018 Backflow Test Report
132 kb • April 24, 2018

April 24, 2018Double Check Valve Assembly (DCVA)

PDF Format
Double Check Valve Assembly (DCVA)
371 kb • April 24, 2018

Do you have or need to have a backflow device? For most customers a DCVA (Double Check Valve Assembly) is exactly what you need. Specifications and details for DCVA installation can be found here.

May 11, 2016List of Approved Backflow Prevention Assemblies

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