Page last updated on December 22, 2025 at 2:03 pm
Permit Application
Federal, state, and local pretreatment requirements establish rules for industrial users discharging to the publicly owned treatment works (POTW) which includes all components of the sanitary system and wastewater treatment plant. In some instances, industrial, non-residential, users must obtain a permit to discharge wastewater to the POTW.
Resources for Industrial Pretreatment
Bloomington Municipal Code 10.16
Industrial Survey and Permit Application 2018
Industrial Survey - Wastewater Discharge short form
Local Limits
Local Limits are limits specific to the City of Bloomington Utilities and are in effect for industrial, non-residential, customers. No user shall discharge wastewater containing in excess of the following daily maximum allowable discharge limits:
| Parameter | Daily Limit (mg/l) |
|---|---|
| Arsenic | 0.24 |
| Cadmium | 0.035 |
| Chromium | 1.43 |
| Copper | 0.846 |
| Lead | 0.24 |
| Mercury | 0.0051 |
| Nickel | 1.91 |
| Selenium | 0.069 |
| Silver | 0.17 |
| Zinc | 1.34 |
| Benzene | 0.050 |
| BTEX (Benzene, Ethylbenzene, Toluene, and Xylenes) | 0.750 |
For more information contact:
Pretreatment Coordinator
812-349-3946