14.16.300 Pretreatment sludges—Oxidizing and reducing agents.
Strong oxidizing and reducing agents shall not be discharged into the sewage system at concentrations exceeding the following concentrations, except by special wastewater discharge permit.
| Agent | Maximum Concentration |
|---|---|
| Chlorine, chlorine dioxide, potassium permanganate, ozone and other strong oxidants | 5 milligrams/liter |
| Sulfite, thiosulfate, nitrite and other strong reducing agents | 5 milligrams/liter |