Proposition 65

Zenith Industries and California’s Proposition 65, the Safe Drinking Water and Toxic Enforcement Act of 1986.

California voters approved Proposition 65 (Prop 65), officially known as the Safe Drinking Water and Toxic Enforcement Act of 1986. Prop 65 protects the state’s drinking water sources from being contaminated with chemicals known to cause cancer, birth defects, or other reproductive harm.

California publishes a list of chemicals known to the state of California to cause cancer or reproductive harm. The Prop 65 list currently includes a wide range of naturally occurring and synthetic chemicals that are part of our everyday use.  The list of more than  850 chemicals includes additives or ingredients in pesticides, common household products, food, dyes, or solvents.  Listed chemicals are also used in manufacturing, construction, plumbing and maintenance.  Click here for an updated list of Prop 65 chemicals.

Prop 65 does not restrict the sale of chemicals on the list but mandates warnings that are intended to help Californians make informed decisions about their potential exposures to these chemicals from the products they use. California’s Office of Environmental Health Hazard Assessment (OEHHA) administers the Proposition 65 program.  To comply with Prop 65, select Zenith Industries products contain labels as prescribed by the regulations.  See Warning Labels for more information.

Zenith Industries provides the following elaborative information to provide clear and reasonable warning in compliance with California Prop 65 regulations.  Some activities when using power and hand tools generate dusts which may cause exposure to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Examples of some of these processes and chemicals are:

  • Carbon black and titanium dioxide in pigmented coatings
  • Lead in lead-based paints
  • Crystalline silica from masonry and cement
  • Arsenic, chromium, lead from metal work or treated lumbers

Your exposure to these chemicals varies depending on duration of work and your work practices. To mitigate exposure, work in a well-ventilated area and with appropriate safety equipment. Ensure that skin, clothing and work site are appropriately cleaned after use and wastes are appropriately contained and disposed.

For more information about California’s Prop 65 see: or chemical-specific fact sheets at: