| No. | Description (PDF) | Effective Date |
| SOP-1000-GM-001 | Preparation and Revision of GWA Policies and Procedures | 02-15-2021 |
| SOP-1200-HR-001 | Drug & Alcohol-Free Workplace | 10-01-2019 |
| SOP-1200-HR-002 | Families First Coronavirus Response Act | 08-18-2020 |
| SOP-1200-HR-003 | GWA Outside Employment Policy Implementation Procedures | 11-08-2021 |
| SOP-1300-LAB-001 | Sample Collection, Preservation and Storage | 4-5-2022 |
| SOP-1300-SAF-002 | Mandatory SARS-CoV-2 Vaccination and Testing for All GWA Employees | 12-30-2021 |
| SOP-1300-SAF-001 | Workplace Safety Specific to COVID-19 | 08-06-2021 |
| SOP-1500-C&M-001 | Operation and Safety Guidelines for the Use of GWA Vehicles | 12-07-2020 |
| SOP-1500-WWT-001 | Use of the Causeway Leading to GWA Hagåtña Wastewater Facilities | 1-20-2022 |