| Title (link to summary) | Number | Date (released or updated) |
|
Quality Assurance Project Plan: PFAS in Freshwaters Across Washington: Screening Level Survey
| 25-03-105 | October 2025 |
|
Gymnasium Foam Replacement Study: Assessment of Flame Retardants in Foam and Dust Before and After Product Replacement
| 25-03-021 | October 2025 |
|
Focus on: Puget Sound Long-term Sediment Quality, 2017-2022
| 25-03-020 | October 2025 |
|
PCBs in State Purchased Products: Medical and Hospital Supplies 2017 Results
| 25-03-018 | October 2025 |
|
PCBs in State Purchased Products: Fish Hatchery Products 2017 Results
| 25-03-017 | October 2025 |
|
PCBs in State Purchased Products: Flooring Material 2017 Results
| 25-03-016 | October 2025 |
|
Elton Pond PFAS Analysis of Freshwater Fish, 2024 Results
| 25-03-019 | September 2025 |
|
Wenatchee River PCB Source Assessment: Cashmere Reach Source Identification
| 25-03-015 | September 2025 |
|
Quality Assurance Project Plan: 2025-2030 Monitoring Contaminants in Marine Benthic Invertebrates
| 25-03-104 | August 2025 |
|
Poster: Salish Sea Model—Optimization Phase 2, Refined Scenarios and Dissolved Oxygen Noncompliance
| 25-03-014 | August 2025 |
|
Interim Policy for Lab Accreditation Fees
| 25-03-013 | July 2025 |
|
Focus on: Mercury and PFAS Trends in Freshwater Fish – Fall 2025
| 25-03-012 | July 2025 |
|
Focus on: Sediment Quality in Commencement Bay
| 25-03-011 | July 2025 |
|
A Review on the Use and Monitoring of Alum Treatments to Control Algal Blooms
| 25-03-009 | July 2025 |
|
Greater Lake Washington Watershed PFAS Survey: Final Report
| 25-03-008 | July 2025 |
|
Quality Assurance Project Plan: Pataha Creek Bacteria, Dissolved Oxygen, and pH Total Maximum Daily Load Study
| 24-03-104 | July 2025 |
|
Quality Assurance Project Plan: Monitoring Metals in Lake Roosevelt Surface Water
| 25-03-103 | June 2025 |
|
Focus on: Lake Sediment Core Study for Toxic Chemical Trends — Summer 2025
| 25-03-010 | June 2025 |
|
Puget Sound Nutrient Source Reduction Project. Volume 2: Model Updates and Optimization Scenarios, Phase 2
| 25-03-003 | June 2025 |
|
Soos Creek Watershed Modeling & Analysis to Address Bioassessment Impairments for the Soos Creek Fine Sediment Total Maximum Daily Load Study
| 24-03-003 | June 2025 |
|
Quality Assurance Project Plan: Assessment of Lead and Cadmium in Children’s Jewelry 2025
| 25-03-102 | May 2025 |
|
Standard Operating Procedure EAP092, Version 1.4: BEACH Program Bacteria Sampling
| 25-03-201 | April 2025 |
|
Per- and Polyfluoroalkyl Substances in Freshwater Fish of Ten Lakes, 2023 Results
| 25-03-007 | April 2025 |
|
Spokane River and Lake Spokane Dissolved Oxygen Total Maximum Daily Load 10-Year Effectiveness Study
| 25-03-001 | April 2025 |
|
Quality Assurance Monitoring Plan: Marine Waters Long-Term Monitoring, Water Column Program, 2025
| 25-03-101 | March 2025 |
|
Focus on: Quilcene/Tarboo Watershed Study in 2025-2026
| 25-03-006 | February 2025 |
|
Lakewood Plaza Cleaners/Ponders Corner Groundwater Monitoring Results, April 2022
| 25-03-005 | February 2025 |
|
Toxics in Packaging Overview: 2014–2015, 2015–2016, 2017, and 2018–2019 Results
| 25-03-004 | February 2025 |
|
Assessing Sources of Toxic Chemicals Impacting Juvenile Chinook Salmon: Snohomish River Watershed Source Assessment of PBDE Flame Retardants
| 25-03-002 | February 2025 |
|
Quality Assurance Project Plan: Toxic Chemicals in Stormwater Runoff From Artificial Turf Installations
| 24-03-108 | January 2025 |