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The following list of Washington companies includes notable companies that are, or once were, headquartered in the U.S. state of Washington. Companies based in Washington
Most onsite wastewater treatment systems are of the conventional type, consisting of a septic tank and a subsurface wastewater infiltration system (SWIS). Site limitations and more stringent performance requirements have led to significant improvements in the design of wastewater treatment systems and how they are managed.
Effluent sewer systems, also called septic tank effluent gravity (STEG), solids-free sewer (SFS), or septic tank effluent drainage (STED) systems, have septic tanks that collect sewage from residences and businesses, and the liquid fraction of sewage that comes out of the tank is conveyed to a downstream receiving body such as either a ...
In this List of notable waste management companies, many entries are Multinational corporations: the associated country listing is by location of Management HQ. Companies [ edit ]
In early March 2020, coronavirus cases within Washington state grew along with the rest of the country. Washington State Department of Health officials requested, from the federal government's Strategic National Stockpile (the U.S. government's repository of drugs, vaccines and equipment to be used in major public health emergencies), 233,000 respirators and 200,000 surgical masks.
47 Washington. 48 West Virginia. Toggle West Virginia subsection. 48.1 Current. ... This is a list of companies in the United States by state where their headquarters ...
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