- Oil and grease, which contain hazardous materials such as benzene, lead, zinc, chromium, and other metals.
"
- Detergents, including biodegradable detergents.
" - Phosphates, which are plant nutrients and can cause excessive growth of nuisance plants in water bodies.
"
- Chemicals, such as hydrofluoric acid and ammonium bi-fluoride products (ABF), and solvent-based solutions that are
harmful to living organisms
" - Chemicals and oils used for the maintenance of cleaning machinery (for automatic systems)
"