| Title (link to summary) | Number | Date (released or updated) |
|
Quality Management Plan, 2020: Washington State Department of Ecology
| 20-03-014 | December 2020 |
|
Quality Assurance Project Plan: Sampling of Pretreated Industrial Wastewater in Northwestern Washington State
| 20-03-119 | November 2020 |
|
Quality Assurance Project Plan: Measuring Mercury Trends in Freshwater Fish in Washington State
| 20-03-117 | November 2020 |
|
Addendum to Quality Assurance Project Plan: May Creek Landfill Groundwater Assessment Monitoring
| 20-03-116 | November 2020 |
|
Quality Assurance Project Plan: May Creek Landfill Groundwater Assessment Monitoring
| 20-03-115 | November 2020 |
|
Addendum 2 to Quality Assurance Project Plan: Prevalence and Persistence of Cyanotoxins in Lakes of the Puget Sound Basin
| 20-03-114 | November 2020 |
|
Addendum 3 to Quality Assurance Project Plan: Long-Term Monitoring of Persistent, Bioaccumulative, and Toxic Chemicals Using Age-Dated Lake Sediment Cores
| 20-03-113 | November 2020 |
|
Quality Assurance Project Plan: Survey of PFAS in the Greater Lake Washington Watershed
| 20-03-112 | November 2020 |
|
Eyes Over Puget Sound: Surface Conditions Report — October 26, 2020
| 20-03-073 | November 2020 |
|
Hangman (Latah) Creek Hydrogeologic Assessment, Focusing on the Latah Creek Wastewater Treatment Plant
| 20-03-013 | November 2020 |
|
Eyes Over Puget Sound: Surface Conditions Report — September 28, 2020
| 20-03-072 | October 2020 |
|
Burnt Bridge Creek Watershed Fecal Coliform Bacteria, Temperature, Dissolved Oxygen, and pH: Source Assessment
| 20-03-016 | October 2020 |
|
Addendum 2: Soos Creek Supplemental Monitoring - Addendum to: Modeling Quality Assurance Project Plan for Soos Creek Watershed Temperature and Dissolved Oxygen TMDL Technical Analysis
| 20-03-111 | September 2020 |
|
Whatcom Creek Fecal Coliform Bacteria Total Maximum Daily Load: Technical Report
| 20-03-015 | September 2020 |
|
Shelton Laundry and Cleaners Groundwater Monitoring Results, October 2018: Data Summary Report
| 20-03-012 | August 2020 |
|
Chemicals of High Concern to Children in Children’s Clothing, Footwear, and Accessories – 2018
| 20-03-011 | July 2020 |
|
Wide Hollow Creek Temperature, Dissolved Oxygen, and pH Water Quality Study for Aquatic Life, 2013-2014
| 20-03-007 | July 2020 |
|
PBT Chemical Trends Determined from Age-Dated Lake Sediment Cores, 2017 Results
| 20-03-002 | July 2020 |
|
Exploring the Use of Fluorometric Sensors to Monitor Harmful Algal Blooms in Lakes
| 20-03-010 | June 2020 |
|
Cannabis Science Task Force Recommendations: Laboratory Quality Standards for Pesticides in Cannabis Plants and Products
| 20-03-005 | June 2020 |
|
Environmental Effects-Based Concentrations for Weathered Diesel-Range Organics: Toxicity in Marine Water and Freshwater
| 20-03-008 | May 2020 |
|
Tekoa Wastewater Treatment Plant Dissolved Oxygen, pH, and Nutrients Receiving Water Study
| 20-03-006 | May 2020 |
|
Quality Assurance Project Plan: Freshwater Fish Contaminant Monitoring Program
| 20-03-106 | April 2020 |
|
Eyes Over Puget Sound: Surface Conditions Report — March 16, 2020
| 20-03-071 | April 2020 |
|
Poster: Keep Your Beach Clean
| 20-03-003 | April 2020 |
|
Addendum to Quality Assurance Project Plan: Product Testing Version 1.0 — Formaldehyde in Children’s Products 2019
| 20-03-107 | March 2020 |
|
Quality Assurance Project Plan: Assessing Dioxin in Groundwater, Lower Yakima Valley
| 20-03-105 | March 2020 |
|
Addendum to Quality Assurance Project Plan for Measuring PCBs in Biofilm, Sediment, and Invertebrates in the Spokane River: Screening Study
| 20-03-103 | March 2020 |
|
2019 Addendum to Quality Assurance Monitoring Plan: The Puget Sound Sediment Monitoring Program
| 20-03-101 | February 2020 |
|
Eastern Padilla Bay Tributaries Fecal Coliform Bacteria Total Maximum Daily Load: Water Quality Study Findings
| 20-03-001 | February 2020 |
|
Standard Operating Procedure EAP033, Version 2.2: Hydrolab®, DataSonde®, MiniSonde®, and HL4 Multiprobes
| 20-03-201 | January 2020 |
|
Quality Assurance Project Plan Addendum: Prevalence and Persistence of Cyanotoxins in Lakes of the Puget Sound Basin
| 20-03-102 | January 2020 |
|
Eyes Over Puget Sound: 2019 in Review
| 20-03-070 | January 2020 |