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Environmental Assessment (3561 publications 1957-2024)

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Title (link to summary)NumberDate (released or updated)
Addendum to Quality Assurance Project Plan: Monitoring Program to Verify 303(d) Metals Listings for Selected Rivers and Creeks: Addendum, Arsenic Sampling of Selected Washington Rivers 01-03-070December 2001
Quality Assurance Project Plan: Stillaguamish River Temperature Total Maximum Daily Load 01-03-066December 2001
The Use of 2,4-D for Selective Control of an Early Infestation of Eurasian Watermilfoil in Loon Lake, Washington. Article in Journal of Aquatic Plant Management. 39: 117-125. 01-03-047December 2001
Salmon Recovery Index Watershed Monitoring Program: Water Quality Index Report, October 2000 - September 2001 01-03-046December 2001
Padden Creek Pesticide Monitoring Program, 2001 Progress Report 01-03-045December 2001
Reassessment of Toxicity of Lake Roosevelt Sediments 01-03-043December 2001
River and Stream Ambient Monitoring Report for Water Year 2000 01-03-042December 2001
Chehalis Best Management Practices Evaluation Project, 1995-2000 Temperature Monitoring Data 01-03-041December 2001
Assessment of Surface Water and Groundwater Interchange within the Muck Creek Watershed, Pierce County 01-03-037December 2001
Ecology Responses to Public Comments Received on the Draft PBT Strategy 01-03-035December 2001
Relationship Between the Upper Dungeness River and the Bedrock Aquifer, Clallam County 01-03-027December 2001
Groundwater Quantity Report for WRIA 01, Phase II 12-03-265November 2001
Quality Assurance Project Plan: Ferndale WWTP Outfall Sediments 01-03-067November 2001
Dungeness River/Matriotti Creek Fecal Coliform Bacteria Total Maximum Daily Load Study Streamflow Summary 01-03-039November 2001
Union River Fecal Coliform Total Maximum Daily Load Study 01-03-038November 2001
Obsolete—Stream Sampling Protocols for the Environmental Monitoring and Trends Section 01-03-036November 2001
Water Quality Chapter 8 Technical Assessment 12-03-291October 2001
Quality Assurance Project Plan: Groundwater/Surface Water Interactions In the Sammamish River: a Preliminary Analysis. 01-03-068October 2001
Zinc, Copper, and Lead Concentrations in Quilceda and Allen Creeks: Results of Cooperative Monitoring by Snohomish County and the Washington State Department of Ecology 01-03-031October 2001
Condition of Freshwaters in Washington State: Technical Appendix 01-03-026October 2001
Condition of Freshwaters in Washington State for the Year 2000 01-03-025October 2001
Aquatic Plants Technical Assistance Program 2000 Activity Report 01-03-034September 2001
Analysis and Occurrence of Polybrominated Diphenyl Ethers in Washington State Freshwater Fish. Article in Archives of Environmental Contamination and Toxicology 41, 339-344 (2001) 01-03-033September 2001
Lakewood Plaza Cleaners, January and August 2001 Groundwater Monitoring Sampling Results 01-03-032September 2001
Investigation into Recurring Toxicity of the Chinet Company Columbia River Intake 01-03-030September 2001
Benthic Macroinvertebrate Biological Monitoring Protocols for Rivers and Streams: 2001 Revision 01-03-028September 2001
Groundwater Resources Chapter Level 1 Technical Assessment 12-03-290August 2001
Quality Assurance Project Plan: Sampling to Verify 303(d) Listings for Chemical Contaminants in Shellfish Tissue from Dyes Inlet and Port Washington Narrows 01-03-069August 2001
Quality Assurance Project Plan: Willapa River Temperature Total Maximum Daily Load 01-03-063August 2001
Spokane River/Aquifer Interaction Project Results, May - November 1999 01-03-024July 2001
Chemical Analysis and Toxicity Testing of Spokane River Sediments Collected in October 2000 01-03-019July 2001
Water Quality Assessments of Selected Lakes within Washington State: 1999 01-03-009July 2001
Technical Memorandum-Level 1 Technical Assessment_Hydraulic Continuity Evaluation 12-03-292June 2001
Quality Assurance Project Plan: Monitoring Program to Verify 303(d) Metals Listings for Selected Rivers and Creeks 01-03-071June 2001
Contaminants Associated with Settling Particulate Matter and Bottom Sediments at Two Marinas in Thea Foss Waterway 01-03-023June 2001
American Crossarm and Conduit Monitoring Results, November 2000 and April 2001 01-03-022June 2001
North Creek Watershed: Total Maximum Daily Load Evaluation for Fecal Coliform Bacteria 01-03-020June 2001
Aquatic Plant Sampling Protocols 01-03-017June 2001
Quality Assurance Project Plan: Reassessment of Toxicity of Lake Roosevelt Sediments 01-03-073May 2001
Quality Assurance Project Plan: PCBs in Sediments from Selected Sites in Puget Sound 01-03-072May 2001
Re-Evaluation of Copper Impact from Wilkeson Wastewater Treatment Plant on Wilkeson Creek. 01-03-021May 2001
Final Statewide 303(d) Workload Assessment 01-03-018May 2001
Quality Assurance Project Plan: Freshwater Field Protocol Comparability 01-03-200April 2001
Quality Assurance Project Plan: Moses Lake Phosphorus TMDL Study 01-03-075April 2001
Quality Assurance Project Plan: Characterization of the Groundwater Discharge to Moses Lake, Washington 01-03-074April 2001
Quality Assurance Project Plan: Stillaguamish River Basin and Port Susan Total Maximum Daily Load Evaluation Update 01-03-065April 2001
Spokane River PCB and Source Survey, August 2000 01-03-016April 2001
An Ecological Hazard Assessment for PCBs in the Spokane River 01-03-015April 2001
Skokomish River Basin Fecal Coliform Bacteria Total Maximum Daily Load Study 01-03-014April 2001
River and Stream Ambient Monitoring Report for Water Year 1999 01-03-013April 2001
Mercury Concentrations in Edible Muscle of Lake Whatcom Fish 01-03-012April 2001
Quality Assurance Project Plan: Padden Creek Pesticide Monitoring Project 01-03-076March 2001
Restover Truck Stop Groundwater Monitoring, Results of December 2000 Sampling 01-03-011March 2001
Survey of Typical Soils Arsenic Concentrations in Residential Areas of the City of University Place 01-03-008March 2001
Concentrations of Selected Chemicals in Sediments from Harbors in the San Juan Islands 01-03-007March 2001
Flow Summary at Three Seasonal Gaging Stations on the Little Klickitat River 01-03-006March 2001
Carbaryl Concentrations in Willapa Bay and Recommendations for Water Quality Guidelines 01-03-005March 2001
Guidelines for Preparing Quality Assurance Project Plans for Environmental Studies 01-03-003February 2001
Quality Assurance Project Plan: South Prairie Creek Total Maximum Daily Load Phase II Evaluation 01-03-064January 2001
Dungeness River and Matriotti Creek Total Maximum Daily Load Study: Preliminary Data Results for November 1999 through October 2000 01-03-002January 2001
The Use of Sediment Cores to Track Persistent Pollutants in Washington State: A Review 01-03-001January 2001
USBR Columbia River Pump Exchange Project: Potential Water Quality Impacts on the Lower Yakima River 01-03-000January 2001