| R2-2019-0008 | Order No. R2-2019-0008 Amendment of Site Cleanup Requirements (Order No. R2-2007-0005) for Honeywell International Inc. | Permit | Alameda County | March | 2019 |
| R2-2019-0012 | Order No. R2-2019-0012 Adoption of Final Site Cleanup Requirements and Rescission of Order Numbers R2-2005-0038 and R2-2014-0008 for TH-HW Enterprise LLC | Permit | Alameda County | May | 2019 |
| R2-2019-1018 | Order No. R2-2019-1018 Acceptance of Conditional Resolution and Waiver of Right to Hearing for Planetary Ventures, LLC Bay View Development | Enforcement | Santa Clara County | June | 2019 |
| R2-2019-0021 | Order No. R2-2019-0021 Waste Discharge Requirements for Cities of South San Francisco and San Bruno and North Bayside System Unit (NBSU) | Permit | San Mateo County | July | 2019 |
| R2-2019-0019 | Order No. R2-2019-0019 Waste Discharge Requirements for Sonoma Valley County Sanitation District, Sonoma Valley County Sanitation District Wastewater Treatment Plant and Wastewater Collection System | Permit | Sonoma County | July | 2019 |
| R2-2019-0024 | Order No. R2-2019-0024 Waste Discharge Requirements for Lehigh Southwest Cement Company and Hanson Permanente Cement, Inc. | Permit | Santa Clara County | July | 2019 |
| R2-2019-0022 | Order No. R2-2019-0022 Rescission of Site Cleanup Requirements (Order Nos. 01-066, R2-2002-0033, R2-2002-0128, AND R2-2004-0006) for Chevron USA Products Company Bay Cities Oil Marketers, Inc., Dillingham Construction N. A., Inc., Texaco, Inc., Equiva Services, LLC, Phillips Petroleum Company, ExxonMobil Oil Corporation, Exxon Mobil Corporation, Atlantic Richfield Company,
Napa County Flood Control and Water Conservation District
| Rescission | Napa County | July | 2019 |
| R2-2019-0025 | Order No. R2-2019-0025 Rescission of Site Cleanup Requirements (Order No. 01-031) and Requirements for Technical Report for FMC Corporation | Rescission | Santa Clara County | August | 2019 |
| R2-2019-1019 | Order No. R2-2019-1019 Acceptance of Conditional Resolution and Waiver of Right to Hearing for 1500 Mission Housing LP | Enforcement | San Francisco County | August | 2019 |
| R2-2019-0028 | Order No. R2-2019-0028 Waste Discharge Requirements and NPDES Permit for City and County of San Francisco Ocenside Water Pollution Control Plant, Wastewater Collection System, and Westside Recycled Water Project | Permit | San Francisco County | October | 2019 |
