Research & Data

Use this portal to filter and search for all of our scientific information.

Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.

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Biochemical Oxygen Demand (BOD) - Benchsheet for bottle method

The worksheet for labs uses the bottle method for biochemical oxygen demand testing.

https://ecology.wa.gov/bod-benchsheet

BOD benchsheet for SM 5210B

This a quality-control tool for environmental laboratories is used with the 5-day Biochemical Oxygen Demand (BOD) test, Standard Method 5210-B.

https://ecology.wa.gov/bod-benchsheet-sm-5210b

pH benchsheet

is a quality-control tool for environmental laboratories.

https://ecology.wa.gov/ph-benchsheet

Kitsap County annual BEACH report

Learn about bacteria results at Kitsap County beaches sampled in the summer of 2023.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/kitsap-county

Mason County annual BEACH report

We sampled three beaches in Mason County for bacteria in the summer of 2023.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/mason-county

Pierce County annual BEACH report

We sampled 7 beaches in Pierce County for bacteria in the summer of 2023.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/pierce-county

Skagit County annual BEACH report

We sampled Bay View State Park beach in Skagit County in the summer of 2023.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/skagit-county

Snohomish County annual BEACH report

We sampled seven beaches in Snohomish County for bacteria in the summer of 2023.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/snohomish-county

Thurston County annual BEACH report

We sampled two beaches in Thurston County for bacteria in the summer of 2023.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/thurston-county

Whatcom County annual BEACH report

We sampled four beaches in Whatcom County for bacteria in the summer of 2023.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/whatcom-county

Black Lake Grocery groundwater monitoring

We monitor groundwater for petroleum hydrocarbons at the Black Lake Grocery site.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index/black-lake-grocery

Habitat monitoring methods

We monitor the health of streams by measuring the health of habitat, water, and sediment chemistry.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/habitat-monitoring-methods

Watershed health monitoring

We monitor the regional health of rivers and streams in watersheds throughout the state.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health

Stream biological monitoring

We evaluate the health of rivers and streams by studying multiple aquatic communities.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/stream-biological-monitoring

Plaza Cleaners groundwater monitoring

We monitor groundwater for volatile organic compounds at the Plaza Cleaners Lakewood site.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index/lakewood-cleaners

Shelton Laundry groundwater monitoring

We measure volatile organic compounds from monitoring wells at the Shelton Laundry site.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index/shelton-laundry

Sumas-Blaine surficial aquifer long-term ambient groundwater monitoring

We sample 25 wells in the Sumas-Blaine aquifer annually for nitrate, chloride, and bromide.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index/sumas-blaine

Watershed health sampling sites

Learn about the sites we sample.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/sampling-sites

Active groundwater studies

We conduct groundwater studies for long- and short-term projects. Learn about our active studies.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index

Models and tools for water quality improvement

We use models to predict water quality changes to help find strategies to address pollution.

https://ecology.wa.gov/research-data/data-resources/models-spreadsheets/modeling-the-environment/models-tools-for-tmdls