| Title (link to summary) |
Number |
Date (released or updated) |
| Site Register - May 17, 2012 | 12-09-041J | May 2012 |
| Spokane River Metals Sites Four Beaches Proposed for Cleanup | 12-09-027 | May 2012 |
| Industrial Petroleum Distributors | 12-09-108 | May 2012 |
| NW Pipeline ST Grandview | 12-09-006 | May 2012 |
| NW Pipeline ST Prosser | 12-09-007 | May 2012 |
| NW Pipeline ST Yakima | 12-09-008 | May 2012 |
| Site Register - May 3, 2012 | 12-09-041I | May 2012 |
| BNSF Parkwater Railyard Site | 12-09-026 | April 2012 |
| Site Register - April 19, 2012 | 12-09-041H | April 2012 |
| Focus on UST Operator Training - revised April 2012 | 11-09-005 | April 2012 (revised) |
| SeaTac Development Site | 12-09-167 | April 2012 |
| Apple Valley Elementary School Open House & Presentation | 12-09-004 | April 2012 |
| Apple Valley Elementary School Public Comment Period Extended | 12-09-005 | April 2012 |
| Site Register - April 5, 2012 | 12-09-041G | April 2012 |
| Troy Laundry Site | 12-09-164 | April 2012 |
| Blaine Marina, Inc. | 12-09-151 | April 2012 |
| 1920 Port of Tacoma Road | 12-09-082 | April 2012 |
| 지하 탱크 관리자를 위한 교육지침 | 11-09-005KO | April 2012 (revised) |
| 개정 법안 알림 | 12-09-045KO | March 2012 |
| Site Register - March 22, 2012 | 12-09-041F | March 2012 |
| Fred Meyer Stores Inc Site - Agreed Order and Cleanup Documents Available for Review and Comment | 12-09-165 | March 2012 |
| Preliminary Cost-Benefit and Least Burdensome Alternative Analyses - Chapter 173-360 RCW Underground Storage Tank Regulations | 12-09-043 | March 2012 |
| Small Business Economic Impact Statement - Chapter 173-360 WAC Underground Storage Tank Regulations | 12-09-044 | March 2012 |
| Rule Proposal Notice - Underground Storage Tank Regulations | 12-09-045 | March 2012 |
| Hardel Mutual Plywood | 12-09-106 | March 2012 |
| Robys Services | 12-09-003 | March 2012 |
| Gasolinera “Robys” | 12-09-003ES | March 2012 |
| Site Register - March 8, 2012 | 12-09-041E | March 2012 |
| Apple Valley Elementary School | 12-09-002 | March 2012 |
| Escuela Primaria Apple Valley | 12-09-002ES | March 2012 |
| RAM Auto & Truck Recycling | 12-09-105 | March 2012 |
| Hazardous Sites List - February 28, 2012 | 12-09-042A | February 2012 |
| Airport Kwik Stop Site | 12-09-025 | February 2012 |
| Fox Avenue Building Site | 12-09-133 | February 2012 |
| La Orden Acordada y los Documentos Listos para Revisión Púbico - el sitio limpieza de Fox Avenue | 12-09-133ES | February 2012 |
| Kêu gọi ý kiến cho Sắc lệnh đồng thuận và các tài liệu liên hệ - Fox Avenue | 12-09-133VI | February 2012 |
| 華盛頓州生態部歡迎民眾在公眾意見征詢期提供對Duwamish海洋中心進行調查清理工作的意見 | 12-09-133ZH | February 2012 |
| Air Trac Waste Management Area 1 Delisting (document was originally numbered 12-09-24) | 12-09-024 | February 2012 |
| Site Register - February 23, 2012 | 12-09-041D | February 2012 |
| Barbee Mill Site - Amended Agreed Order | 12-09-161 | February 2012 |
| Bremerton School District Crownhill Elementary School Site | 12-09-166 | February 2012 |
| Port Angeles Harbor Sediment Investigation | 12-09-081 | February 2012 |
| Site Register February 9, 2012 | 12-09-041C | February 2012 |
| Park Laundry Cleanup Site | 12-09-104 | February 2012 |
| Pacific Wood Treating Cleanup Site FAQ | 12-09-103 | January 2012 |
| North Colfax Petroleum Contamination Site | 12-09-023 | January 2012 |
| Site Register January 26, 2012 | 12-09-041B | January 2012 |
| Pacific Wood Treating | 12-09-102 | January 2012 |
| Heglar Kronquist Site | 12-09-022 | January 2012 |
| Port of Seattle Terminal 91 Site | 12-09-163 | January 2012 |
| Site Register - January 12, 2012 | 12-09-041A | January 2012 |
| Focus on UST Technical Assistance Program (Replaces 96-061-TCP) | 12-09-001 | January 2012 |
| Kaiser Trentwood Site Update | 12-09-021 | January 2012 |
| Budd Inlet Sediments: Port Peninsula | 12-09-101 | January 2012 |
