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Quality Assurance Project Plans (QAPPs) (578 publications 1994-2024)

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Title (link to summary)NumberDate (released or updated)
Quality Assurance Project Plan Addendum: Statewide Survey of Per- and Poly-fluoroalkyl Substances in Washington State Rivers and Lakes 18-03-117December 2018
Flame Retardants in General Consumer and Children’s Products Addendum 3 to Quality Assurance Project Plan: Nap Mats 2018 18-04-011October 2018
Quality Assurance Project Plan: Prevalence and Persistence of Cyanotoxins in Lakes of the Puget Sound Basin 18-03-115September 2018
Addendum 1 to Quality Assurance Project Plan: Columbia River Basin Local Source Control Monitoring for Toxics: Phase I Screening Study 18-03-116August 2018
Addendum to Quality Assurance Project Plan: Product Testing Program Version 1.0 — Product Testing Follow-up Study 2018-2019 18-03-113July 2018
Water Resources Program and Office of Columbia River Grant Special Terms and Conditions Quality Assurance Project Plan (QAPP) Guidance 17-11-013July 2018
Quality Assurance Project Plan: Lower Yakima River Thermal Refuge Profiling 18-12-009June 2018
Quality Assurance Project Plan: Per- and Polyfluoroalkyl Substances (PFAS) in Washington State Products 18-04-012June 2018
Addendum 7 to Quality Assurance Project Plan: Freshwater Fish Contaminant Monitoring Program: 2018 18-03-112June 2018
Quality Assurance Project Plan: Salish Sea Model Applications 18-03-111June 2018
Addendum to Quality Assurance Project Plan: Product Testing Version 1.0 — Formaldehyde in Children’s Products, 2018 18-03-110June 2018
Quality Assurance Project Plan: Sumas-Blaine Aquifer Nitrate Characterization, 2018 18-03-103May 2018
Quality Assurance Monitoring Plan: The Puget Sound Sediment Monitoring Program 18-03-109March 2018
Addendum to Quality Assurance Project Plan - Beach Environmental Assessment, Communication, and Health (BEACH) Program: Monitoring Washington State Marine Beaches 18-03-108March 2018
QAPP Addendum: Soos Creek Bioassessment TMDL Modeling and Analysis 18-03-106February 2018
Addendum to Quality Assurance Project Plan: Flame Retardants in Ten Washington State Waterbodies 18-03-102February 2018