WA DOH COVID-19 Building Shutdowns and Startup

Like many States, the California State Water Resources Control Board Division of Drinking Water has been posting information for public water systems regarding the COVID-19 pandemic.  This morning they uploaded a copy of a Washington Department of Health (WA DOH) “COVID-19 Guidance for Legionella and Building Water System Closures.”  The Guidance was updated April 14, 2020 and a copy is enclosed (WA DOH_BuildingWaterSystemClosuresCOVID-19).

Introductory Text from the Enclosed WA DOH Guidance

“The focus of this guidance is to reduce Legionella growth and other pathogen and corrosion concerns that occur when there is a large drop in building water use. The guidance focuses on potable water systems inside larger buildings with complex plumbing and the information is general in nature. Each building is different and will require different actions based on its plumbing systems, use patterns, and source of water supply. “

The Guidance references a second WA DOH document on shut down and restart of water recreational facilities.  A copy of that document is also enclosed (WA_DOH_Water Recreation Facilities_Long Shutdownspdf).  That Guidance is dated March 2020.


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About Dan Askenaizer

Dr. Askenaizer leads WQTS’ work on regulatory compliance support for many of our water agencies clients. Dr. Askenaizer tracks water quality and treatment regulations at the Federal and State levels and provides regulatory updates to our clients. Dr. Askenaizer has strong expertise in the development of Regulatory Monitoring and Compliance Plans (RMCPs), which he has completed for a number of water agencies. He has also been working on a number of projects dealing with the development of distribution system monitoring plans and review of nitrification control strategies. Prior to joining WQTS, Dr. Askenaizer was the Water Quality Manager for the Glendale Water and Power. Under his leadership, the Water Quality Group conducted a demonstration-scale study of chlorite for nitrification control and a pilot-scale study of biological treatment for removal of nitrate. Dan has 30 years of experience working on projects dealing with regulatory, water quality and public health issues. Dan has given numerous presentations at workshops and round-tables across the country for water utilities. Dan was instrumental in developing and implementing a Mentoring Program for water staff and was involved in a Sustainable Development team.