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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PUREX Administrative Order

The Department of Ecology issued this Administrative Order (Order) requiring Department of Energy-Richland Operations Office and CH2M HILL Plateau Remediation Company to comply with WA codes and the Hanford RCRA permit.

https://ecology.wa.gov/20170510purexenforcement

Continued Response Actions to Partial Collapse of PUREX Tunnel 1

Due to the continued immediate threat to human health and the environment posed by the instability of PUREX Tunnel 1, Ecology approves grouting of PUREX Tunnel 1 as an interim stabilization measure.

https://ecology.wa.gov/20170608purexgroutresponse

Amended Administrative Order Docket #15419 amending Order Docket #14156

This amended order adds PUREX Tunnel 2 to the scope of Corrective Action 3 and provides additional time for USDOE-RL and CHPRC to complete Corrective Action 3.

https://ecology.wa.gov/20170915purexamendedorder

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 Health permitting conditions

STATEMENT OF BASIS HANFORD SITE AIR OPERATING PERMIT NO. 00-05-006 RENEWAL 3 ATTACHMENT 2: DEPARTMENT OF HEALTH LICENSE

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

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

Supporting Documents - Department of Health License Files

Supporting Documents from the Department of Health License Files

https://ecology.wa.gov/supporting-documents-department-of-health-licens

Supporting Documents - Ecology (PDF Portfolio)

Supporting Documents from Ecology

https://ecology.wa.gov/supporting-documents-ecology-pdf-portfolio

Transmittal Letter

Start of Public Comment Period for the Draft Hanford Site Air Operating Permit (AOP) Renewal 3

https://ecology.wa.gov/transmittal-letter-d05b7b46ed7eb953d4597627837c8259

GIS Applications

Find a list of GIS applications at Ecology.

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

Geographic Information Systems (GIS)

Our GIS staff maintain spatial datasets and applications, conduct GIS projects, and publish GIS maps.

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