EPA · discharge permits by city
Discharge permits in Mason City, Iowa
- 7Current permits
Permits
Major dischargers first. Permits are placed by the address on the permit, which is the operation’s own, not the outfall’s.
| Permit holder | NPDES ID | Program | Discharger | Receiving water |
|---|---|---|---|---|
| MASON CITY, CITY OF STP | IA0057169 | Publicly owned treatment works | Major | Mason Creek-Winnebago River |
| AMRIZE CEMENT INC. - WEST QUARRY | IA0071951 | Minor | Calmus Creek | |
| CITY OF MASON CITY | IAL057169 | Biosolids | Minor | Cheslea Creek-Willow Creek |
| GOLDEN GRAIN ENERGY, LLC | IA0078735 | Minor | Cheslea Creek-Willow Creek | |
| HEIDELBERG MATERIALS US CEMENT LLC | IA0001945 | Minor | Calmus Creek | |
| HEIDELBERG MATERIALS US CEMENT LLC (REMEDIATION SITE) | IA0072907 | Minor | City of Mason City-Winnebago River | |
| MASON CITY, CITY OF WTP | IA0077305 | Minor | City of Mason City-Winnebago River |