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.
Aquatic Mosquito Control General Permit areas of restricted larvicide and adulticide use
Areas of restricted larvicide and adulticide use for Aquatic Mosquito Control General Permit.
https://ecology.wa.gov/03042015esalocations
Aquatic Mosquito Control General Permit Fact Sheet
Fact Sheet for the Aquatic Mosquito Control General Permit.
https://ecology.wa.gov/03042015factsheet
Aquatic Mosquito Control General Permit application (Notice of intent)
Application (Notice of intent) for the Aquatic Mosquito Control General Permit
https://ecology.wa.gov/03042015noi
Aquatic Mosquito Control General Permit SEPA checklist
SEPA checklist for the Aquatic Mosquito Control General Permit
https://ecology.wa.gov/03042015sepachecklistt
Aquatic Mosquito Control General Permit SEPA determination of non-significance
SEPA DNS (determination of non-significance) for the Aquatic Mosquito Control General Permit
https://ecology.wa.gov/03042015sepadns
Draft Zostera japonica Management General Permit application (Notice of intent)
Draft Zostera japonica Management General Permit Notice of Intent (NOI)
https://ecology.wa.gov/01022014draftzjnoi
Zostera japonica Management General Permit Fact sheet
Draft detailed explanation of Zostera japonica Management General Permit.
https://ecology.wa.gov/01022014zjdraftfactsheet
Publication index: Spokane River documents
List of links to documents about water quality in the Spokane River
https://ecology.wa.gov/spokane-river
Storymap: Skagit Valley's Warming Waters
An educational resource describing the issues, causes and impacts of warming waters in the Skagit valley streams..
https://ecology.wa.gov/storymap-skagit-valleys-warming-waters
Stormwater Pollution Prevention Plan (SWPPP) template for Construction Stormwater permit plans.
This template presents the recommended structure and content for preparing a Construction Stormwater General Permit SWPPP.
https://ecology.wa.gov/swppp-for-construction-stormwater-permits
RCW Chapter 90.50A
Water pollution control facilities federal capitalization grants
https://ecology.wa.gov/rcw-chapter-90-50a
WAC Chapter 173-303
Dangerous waste regulations
https://ecology.wa.gov/wac-chapter-173-303-3d9899805a920fa45a9286be0d1f7ab7
Public comments: Chambers Creek Regional Wastewater Treatment Plant Draft Permit
We invite your comments on the draft NPDES permit for the Chambers Creek Wastewater Treatment Plant – WA0039624.
https://ecology.wa.gov/chamberscreekcomment
Publication: Criteria for Sewage Works Design (Orange Book)
A guide for the design of sewage collection, treatment, and reclamation systems, for municipal wastewater collection and treatment facilities.
https://ecology.wa.gov/publication-criteria-for-sewage-works-design-orange-book
Online tool: Emergence guidance for stormwater management
Guidance in the 2024 Stormwater Management Manual for Western Washington
https://ecology.wa.gov/online-tool-emergence-guidance-for-stormwater-management
Publication: Stormwater treatment of tire contaminants – best management practices effectiveness
Study assessing which stormwater best management practices (BMPs) are expected to reduce concentrations of 6PPD and 6PPD-q in stormwater.
https://ecology.wa.gov/publication-stormwater-treatment-of-tire-contaminants-best-management-practices-effectiveness
Source Control Inspection Program Guidance Manual
Manual from the Washington Stormwater Center provides resources, templates, and strategies developed based on research, input, and experiences of jurisdictions that have developed similar programs.
https://ecology.wa.gov/source-control-inspection-program-guidance-manual
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