Skip to main content


Best Practices

Mop water and other wastewater disposal

  • Never empty mop water, cleaning chemicals, floor buffer wastewater or any other liquids on the ground (outside).
  • Mop water and other wastewater must only be emptied into housekeeping sinks. These sinks are identified by high sides and water taps.

Trash dumpsters

  • Keep liquids out of dumpsters. Liquids leaking from dumpsters (“dumpster juice”) can wash into storm drains when it rains, causing pollution in the local creeks.
  • Top-opening lids must stay closed except when adding trash.
  • Side-opening doors can stay open at all times.

Chemical disposal

  • Contact EHS for waste pickup of unwanted chemical materials.
Improperly draining mop water
Properly draining mop water