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Most King County offices will be closed on Thursday and Friday, Nov. 23-24, 2017, for the Thanksgiving holiday.  
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KCIW provides technical assistance for dental practices to help keep harmful pollutants out of the environment.

Amalgam separators

List of companies that sell ISO-11143 certified amalgam separators by Local Hazardous Waste Management Program in King County.

  • Note: King County is no longer maintaining a list of approved amalgam separators. If dental practices are using installation of an approved separator to demonstrate compliance with County regulations, King County will only recognize amalgam separators that have been certified as meeting or exceeding ISO-11143 as verified by an ISO-certified testing laboratory. Dental practices must be able to provide a copy of the ISO-11143 certification for their amalgam separator units if requested by King County.

Amalgam waste

Learn what to do with your used amalgam waste , by Local Hazardous Waste Management Program in King County.

X-ray fixer

What to do with your used x-ray fixer by Local Hazardous Waste Management Program in King County includes information about companies that transport dental office waste to licensed treatment, storage, disposal or recycling facilities.

Glutaraldehyde solutions

Those in the King County sewer service area may dispose of solutions containing two - four percent glutaraldehyde disinfectant when following the appropriate best management practices. Review the King County policy regarding discharges of glutaraldehyde solutions to the County sanitary sewer . Ecology information about cleaners and disinfectants in dental offices .

Chemicals and other disinfection solutions

Learn what to do with these at Local Hazardous Waste Management Program in King County web pages .

King County dental office inspections

What to expect, how to be prepared.

Record-keeping tool

Download a sample equipment and waste management log .

Additional resources for King County dentists

The final King County Dental Project report presents data on the quantities of dental waste generated by dental offices in King County and documents the disposal methods for those wastes. It also describes the hazardous waste management improvements that were achieved through the cooperative efforts of Local Hazardous Waste Management Program (LHWMP) staff and the dental community. The report was produced by Public Health - Seattle & King County as part of LHWMP in King County, January 2005.

Washington State Department of Ecology (Ecology's) Dental Office Best Management Practices .

Learn more about Ecology's Mercury Chemical Action Plan , a part of the agency's Persistent Bioaccumulative Toxins strategy.

For information about laboratory accreditation in Washington State (Ecology).

The Environmental Protection Agency's links for Best Management Practices for Dental Offices .

Naval Dental Research Institute's dental mercury environmental issues information .

Local Hazardous Waste Management Program in King County - Information on how to properly dispose of expired, unused pharmaceuticals . Disposal to the trash and sewer are not permitted.

Local Hazardous Waste Management Program (King County) Envirostars Program .

Dental practices which are in compliance with King County Industrial Waste regulations may well qualify for EnviroStars certification . EnviroStars, a service of the Local Hazardous Waste Management Program of King County, is a program that certifies businesses for their efforts in preventing pollution and reducing hazardous waste. Certified EnviroStars businesses are given a two-to-five star rating based on their commitment to reducing hazardous waste. The higher the star rating, the more proactive the business has been in protecting the environment.

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