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Quality Assurance Project Plans (QAPPs) (591 publications 1994-2025)

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Title (link to summary)NumberDate (released or updated)
Quality Assurance Project Plan: Assessment of Flame Retardants in Gymnasium Foam and Dust Before and After Product Replacement 24-03-107December 2024
Lower Columbia River: Addendum 4 to Quality Assurance Project Plan: Freshwater Fish Contaminant Monitoring Program 24-03-106December 2024
Spokane River Watershed, West Plains Area: Addendum 2 to Programmatic Quality Assurance Project Plan: Statewide PFAS Preliminary Assessments 24-03-105December 2024
Quality Assurance Project Plan: Pataha Creek Bacteria, Dissolved Oxygen, and pH Total Maximum Daily Load Study 24-03-104December 2024
SensWA Quality Assurance Project Plan 24-02-024December 2024
Standard Operating Procedure MEL 730136, Version 2.0, Extraction and Analysis of 6PPD-Quinone by EPA 1634 24-03-203July 2024
Quality Assurance Project Plan: Naches River Basin Monitoring for Aquatic Life Parameters 24-03-103July 2024
Addendum 1 to Programmatic Quality Assurance Project Plan Statewide Preliminary PFAS Assessments 24-03-102June 2024
Quality Assurance Project Plan Template for Hydraulic and Hydrologic Modelling 23-06-019March 2024
Programmatic Quality Assurance Project Plan: Statewide PFAS Preliminary Assessments 24-03-101February 2024
Air Monitoring Site Selection and Installation Procedure 16-02-021February 2024
Concrete Manufacturing and/or Recycling: Statewide Effluent Characterization 24-10-001January 2024

 

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