Floor Drains/Sinks Best Practices 

Even when not required by environmental regulations, the following best practices are recommended.

1. Train laboratory personnel in waste management practices. Be sure they know what can and cannot be disposed of down the drain.
2. Periodic inspections should be performed to ensure proper disposal procedures are being performed.
3. Substitute the use of biodegradable cleaners for chromic-sulfuric acid when washing laboratory glassware.
4. Use microchemistry techniques where possible.
5. Plan experiments to minimize waste generation.
6. Clean up any spill promptly.
7. Keep rags, mops, absorbents, and other cleanup supplies readily accessible to all work areas.
8. Keep a spill control kit and drain plugs nearby.
9. Check with the local POTW or on-site wastewater treatment plant regarding what can be safely disposed of down sinks and drains.
10. Close off or guard laboratory hood cup sinks from spill within the hood.
11. Eliminate floor drains in new construction and cover existing drains.