| SAR # 67907 Apr 2023 to Sept 2023 | Report | NOV-16-2023 |
| SAR no. 50623 Oct 2020 to Mar 2021 Revised | Report | JUL-26-2022 |
| SAR no. 57400 Apr 2021 to Sept 2021 Revised | Report | JUL-26-2022 |
| EPA Administrative Amendment #4 Notification | Email | DEC-14-2021 |
| Statement of Basis Administrative Amendment 4 | Statement of Basis | DEC-09-2021 |
| Administrative Amendment #4 Precious Metals Reclamation Facility | Old Permit | DEC-09-2021 |
| Source 13 One (1) Rhodium-Oil Furnace with Baghouse Control | Application | OCT-27-2021 |
| EPA Cursory Review No Comments | EPA Correspondence | AUG-18-2021 |
| EPA Administrative Amendment Notification | Email | AUG-05-2021 |
| Administrative Amendment #3 Heraeus Precious Metals | Old Permit | AUG-03-2021 |
| Administrative Amendment #3 Statement of Basis | Statement of Basis | AUG-03-2021 |
| source 01, Ps1 Roasting Ovens(8) & Chamber Furnace | Letter | JUN-22-2021 |
| Administrative Amendment #2 Precious Metals Reclamation Facility | Old Permit | JAN-15-2021 |
| Source 13 Statement of Basis for AA2 | Statement of Basis | JAN-15-2021 |
| Transmittal letter for Administrative Amendment 2 | Letter | JAN-15-2021 |