| R2-2023-0017 | Order No. R2-2023-0017 Waste Discharge Requirements for City of San Mateo and Estero Municipal Improvement District Water Quality Control Plant and its Collection System | Order | San Mateo County | October | 2023 |
| R2-2023-0018 | Order No. R2-2023-0018 Waste Discharge Requirements for Sanitary District No. 5 Marin Wastewater Treatment Plant and its Collection System | Order | Marin County | October | 2023 |
| R2-2023-0023 | Order No. R2-2023-0023 Amendment of Waste Discharge Requirements for Municipal Dischargers to update total residual chlorine and oil and grease requirements | Order | Various | November | 2023 |
| R2-2023-0021 | Order No. R2-2023-0021 Waste Discharge Requirements for Sewerage Agency of Southern Marin | Order | Marin | November | 2023 |
| R2-2023-0022 | Order No. R2-2023-0022 Waste Discharge Requirements for Sausalito-Marin City Sanitary District | Order | Marin | November | 2023 |
| R2-2023-0025 | Order No. R2-2023-0025 Waste Discharge Requirements for Chevron Products Company, a division of Chevron U.S.A. Inc. Chevron Environmental Management Company | Order | Contra Costa | November | 2023 |
| R2-2024-0002 | Order No. R2-2024-0002 Amending Waste Discharge Requirements for Oceanfront and Bayfront Landfills and Industrial Facilities | Order | Various | February | 2024 |
| R2-2024-1025 | Order No. R2-2024-1025 Acceptance of Conditional Resolution and Waiver of Right to Hearing for Vallejo Flood and Wastewater District Wastewater Treatment Plant | Order | Solano County | February | 2024 |
| R2-2024-1001 | Order No. R2-2024-1001 Acceptance of Conditional Resolution and Waiver of Right to Hearing for Texas Instruments Inc | Order | Santa Clara County | February | 2024 |
| R2-2024-1006 | Order No. R2-2024-1006 Acceptance of Conditional Resolution and Waiver of Right to Hearing for San Francisco Public Utilities Commission Southwest Pollution Control Plant Biosolids Digester Facilities Project | Order | San Francisco County | March | 2024 |
