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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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

BEACH Annual Report Summary 2004 - 2018

Beaches passing swimming standard from 2004 - 2018

https://ecology.wa.gov/table-beach-annual-report-summary

Watershed Health sentinel (reference) sites 2009-2018

Data tables for the map here: https://waecy.maps.arcgis.com/apps/webappviewer/index.html?id=5f7e6c8a758a4ac2af2098f74da80ea4

https://ecology.wa.gov/table-reference-sites-for-watershed-health

Watershed Heatlh Monitoring randomly chosen sites from 2009 - 2017

Data tables for map here: https://waecy.maps.arcgis.com/apps/webappviewer/index.html?id=7b90d34357484848a46076ee220fbffc

https://ecology.wa.gov/table-watershed-health-random-sites

Water Quality Index spreadsheet, version 6

The Water Quality Index, or WQI, summarizes and presents water-quality data in an easily understood format. This spreadsheet is a downloadable tool for calculating a WQI score based on your own data.

https://ecology.wa.gov/water-quality-index-version-6

Statement of Basis for Ecology permitting conditions

STATEMENT OF BASIS HANFORD SITE AIR OPERATING PERMIT NO. 00-05-006 RENEWAL 3 ATTACHMENT 1: ECOLOGY PERMITS

https://ecology.wa.gov/statement-of-basis-for-ecology-permitting-conditio

Statement of Basis for Standard Terms and General Conditions

STATEMENT OF BASIS HANFORD SITE AIR OPERATING PERMIT NO. 00-05-006 RENEWAL 3

https://ecology.wa.gov/statement-of-basis-for-standard-terms-and-general

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

Lake water quality monitoring & protection

Working with partners, we compile data on algae, invasive plants, and some toxic chemicals in lakes.

https://ecology.wa.gov/research-data/monitoring-assessment/lake-water-quality

River and stream monitoring

Our freshwater data helps us to assure clean and abundant water to support human and aquatic life.

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

EIM submit data

Ecology partners, submit your environmental monitoring data to EIM online.

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

Clallam County annual BEACH report

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

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

Contaminants in lake sediment cores

We age-date sediment cores from three lakes per year to assess contaminant deposition trends.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/contaminants-in-sediment-cores

Find groundwater publications

Map and text-based methods for searching for groundwater-related reports for Washington.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/find-groundwater-publications

Grays Harbor County BEACH report

Learn about beaches sampled for bacteria levels in Grays Harbor County in the summer of 2023.

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

Island County annual BEACH report

Learn about the four beaches sampled for bacteria in Island County in the summer of 2023.

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

Monitoring for lead in lakes & streams

We monitor temporal changes in the lead levels of rivers and streams in the state.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/lead-monitoring

Rivers & streams temperature monitoring

We collect data on the temperature of rivers and streams across the state.

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

Jefferson County annual BEACH report

Learn about the four beaches sampled for bacteria in Jefferson County in the summer of 2023.

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

King County annual BEACH report

We sampled 10 beaches in King County for bacteria in the summer of 2023.

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