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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Guidance for Marine Net Pen Aquaculture in Washington State

Proposed guidance for net pen aquaculture management and operations in Puget Sound and the Strait of Juan de Fuca.

https://ecology.wa.gov/guidance-for-marine-net-pen-aquaculture-in-washing

Centroid calculator

An Excel/VBA program to calculate the centroid of a time-concentration series or any x-y series of data.

https://ecology.wa.gov/xlsm-centroid-calculator

QA planning process for NEP grantees

Printable and accessible PDF version of a flowchart showing the approval process for Quality Assurance Project Plans for National Estuary Program grantees.

https://ecology.wa.gov/nepqaflowchart

Discovery Princess Cruise Line inspection report

This document is the inspection report for wastewater discharges for Discovery Princess Cruise Line.

https://ecology.wa.gov/discovery-princess-inspection-report

401 certification process for aquaculture

A flowchart for shellfish growers to help them navigate the current Section 401 water quality certification and permitting process.

https://ecology.wa.gov/shellfish-aquaculture-401-flowchart

Modeling the environment

Computer models mathematically represent part of the environment to predict potential changes.

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

Freshwater fish contaminant monitoring

We analyze freshwater fish for various toxic chemicals.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/freshwater-fish-contaminant-monitoring

Habitat monitoring

We collect data on the health of environmental systems that support plant and animal life.

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

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

Wastewater testing

Whole effluent toxicity testing ensures wastewater does not harm aquatic life.

https://ecology.wa.gov/research-data/monitoring-assessment/wastewater-testing

Marine water & sediment monitoring

We conduct water and sediment long-term monitoring to identify ecosystem changes.

https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring

Models & spreadsheets

Computer models predict changes and spreadsheets calculate. We offer these tools to the public.

https://ecology.wa.gov/research-data/data-resources/models-spreadsheets

Forest practices effectiveness monitoring

We evaluate whether forest practices rules protect fish, wildlife, and water quality.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/forest-practices-effectiveness-monitoring

River & stream water quality index

The Freshwater Quality Index can help you learn about river and stream health.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/water-quality-monitoring/river-stream-water-quality-index

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

GIS Data

Ecology's authoritative GIS data layers are available for download.

https://ecology.wa.gov/research-data/data-resources/geographic-information-systems-gis/data

Eyes Over Puget Sound

We provide documentation of Puget Sound waterways using community submissions and aerial photography.

https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/eyes-over-puget-sound

EIM — environmental monitoring data

EIM contains environmental monitoring data collected by our scientists and partners.

https://ecology.wa.gov/research-data/data-resources/environmental-information-management-database

Long-term marine water & sediment data

We gather high quality data to help accurately reflect changes in marine environments over time.

https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/water-column-data

BEACH annual report

See our annual county-by-county report on bacterial levels at saltwater swimming beaches for 2024.

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