| Title (link to summary) | Number | Date (released or updated) |
|
Addendum 3 to Quality Assurance Monitoring Plan: Long-Term Marine Waters Monitoring, Water Column Program
| 23-03-118 | December 2023 |
|
Quality Assurance Project Plan: Monitoring of Tire Contaminants in Coho Salmon Watersheds
| 23-03-113 | November 2023 |
|
School Supplies 2023: Addendum 1 to Quality Assurance Project Plan: Lead and Cadmium in School Supplies, 2021
| 23-03-117 | September 2023 |
|
Quality Assurance Project Plan: Per- and Polyfluoroalkyl Substances in Freshwater Fish of Ten Lakes, 2023
| 23-03-116 | September 2023 |
|
Quality Assurance Project Plan: Soos Creek Temperature, Dissolved Oxygen, and Bacteria TMDL Study
| 23-03-105 | August 2023 |
|
Addendum: Puget Sound Nutrient Monitoring Project to Quality Assurance Monitoring Plan: Statewide River and Stream Ambient Water Quality Monitoring
| 23-03-102 | August 2023 |
|
Quality Assurance Project Plan: Hylebos Waterway Crab Tissue Study, Occidental Chemical Corporation
| 23-03-115 | June 2023 |
|
Quality Assurance Project Plan: Monitoring Persistent, Bioaccumulative, and Toxic Chemicals (PBTs) Using Age-Dated Lake Sediment Cores: 2023-2027
| 23-03-114 | June 2023 |
|
Quality Assurance Project Plan: Aquatic Plant Monitoring in Washington State Lakes, Rivers, and Streams
| 23-03-112 | June 2023 |
|
Southwest Regional Office Addendum to QAPP Appendix A3: Nonpoint Pollution Investigations in Western WA - Lower Cowlitz River Verification Study
| 23-10-016 | April 2023 |
|
Quality Assurance Project Plan: Performance Test of Green Alternatives to Copper Antifouling Paints
| 23-04-024 | April 2023 |
|
Quality Assurance Monitoring Plan: Statewide River and Stream Ambient Water Quality Monitoring, 2023 revision
| 23-03-106 | April 2023 |
|
Addendum to Quality Assurance Project Plan: Assessing Sources of Toxic Chemicals Impacting Juvenile Chinook Salmon
| 23-03-111 | March 2023 |
|
Addendum 3 to Quality Assurance Project Plan: Freshwater Fish Contaminant Monitoring Program 2023, Spokane River
| 23-03-110 | March 2023 |
|
Quality Assurance Monitoring Plan: The 2023-2028 Puget Sound Sediment Monitoring Program
| 23-03-104 | March 2023 |
|
Addendum 2 to Quality Assurance Monitoring Plan: Long-Term Marine Waters Monitoring, Water Column Program
| 23-03-109 | February 2023 |
|
Addendum to Quality Assurance Monitoring Plan: Statewide River and Stream Ambient Water Quality Monitoring, Selected Toxics in the Upper Green River Watershed
| 23-03-101 | February 2023 |
|
Addendum to Quality Assurance Project Plan: City of West Richland Phase 2a Well No. 10
| 23-12-002 | January 2023 |
|
Addendum to Quality Assurance Project Plan: Toxic Chemicals in Cosmetics: Phthalates and Asbestos
| 23-03-108 | January 2023 |
|
Quality Assurance Project Plan: Flame Retardants in Fabrics of Children’s Play Tents and Other Products
| 23-03-107 | January 2023 |
|
Quality Assurance Project Plan: White Salmon Watershed Bacteria Assessment
| 23-03-103 | January 2023 |