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State Implementation Plan Process
This is the text version of the steps to develop and finalize a state implementation plan.
https://ecology.wa.gov/171026stateimplementationplanprocess-alt-docx
Infrastructure State Implementation Plan for 1997 Ozone Standard
State Implementation Plan Certification for the 1997 8-Hour Ozone Standard
https://ecology.wa.gov/infrastructuresip1997ozonefinal2
2018 School Bus Replacement Preliminary Application
A preliminary application to apply for the VW state settlement grant for clean school bus replacement.
https://ecology.wa.gov/2018schoolbusreplacementprelimapplication
2018 Draft Acceptable Source Impact Levels (ASIL) Options (WAC 173-460) 07/26/18
This is a 7/26/18 spreadsheet of options to update the list of acceptable source impact levels (ASIL) in Chapter 173-460 WAC.
https://ecology.wa.gov/2018-asil-options-wac-173-460-07-26-18
Guidance on enforcement of lead, cadmium, and phthalate limits
Guidance on enforcement of lead, cadmium, and phthalate limits for the Children's Safe Product Act
https://ecology.wa.gov/guidance-on-enforcement-of-lead-cadmium-and-phth
Dell Data Center - Technical Support Document for Health Impact Assessment
Technical Support Document for the Health Impact Assessment (Second Tier Review) for Dell Data Center, 6/10/11
https://ecology.wa.gov/delltier2-tsd
CyrusOne Data Center Health Impact Assessment Recommendation
This is the health impact assessment recommendation for CyrusOne Data Center.
https://ecology.wa.gov/20190425cyrusonetier2hiarec
Sabey Intergate Data Center - Health Impact Assessment letter
Health impact assessment (Second Tier Review) letter for Sabey Intergate Data Center, 11/16/15
https://ecology.wa.gov/2ndtierrev
H5 Data Center Health Impact Assessment Recommendation
This is the Health Impact Assessment Recommendation for H5 Data Center
https://ecology.wa.gov/20211110h5tier2hiarec
2019 Draft Acceptable Source Impact Levels (ASIL) Summary List (WAC 173-460) 02/15/19
This is the 2/15/19 draft summary list of Acceptable Source Impact Levels (ASIL) in Chapter 173-460 WAC.
https://ecology.wa.gov/2019-draft-asil-summary-list-wac-173-460-02-15-1
Sabey Intergate Data Center - Revised Health Impact Assessment
Revised Health Impact Assessment for Sabey Intergate Data Center, 11/16/15
https://ecology.wa.gov/revhistmt
Vantage Data Center - Health Impact Assessment Recommendation
Health Impact Assessment (Second Tier Review) Recommendation for Vantage Data Center, 5/11/17
https://ecology.wa.gov/vantage-hiarec-051117ada
2018 Draft Acceptable Source Impact Levels (ASIL) Summary List (WAC 173-460) 07/26/18
This is the 7/26/18 draft summary list of Acceptable Source Impact Levels (ASIL) in Chapter 173-460 WAC.
https://ecology.wa.gov/2018-draft-asil-list-wac-173-460-07-26-18
CyrusOne Data Center Second-Tier Health Impact Assessment
This is the second-tier health impact assessment report prepared by Landau Associates for CyrusOne Data Center.
https://ecology.wa.gov/20181226cyrusonehialandau
Monthly dangerous waste generation limits
Quantity exclusion limits (QEL) to determine monthly dangerous waste generator category
https://ecology.wa.gov/monthly-generation-limits-plain-text
Vantage Data Center - Revised Health Impact Assessment response
Revised Health Impact Assessment (Second Tier Review) response for Vantage Data Center, 11/16/16
https://ecology.wa.gov/vantage-revfinal-2ndtier-ra-111616ada
Sabey Intergate Data Center - Updated Health Impact Assessment
Updated Health Impact Assessment (Second Tier Review) Recommendation for Sabey Intergate Data Center, 3/3/15
https://ecology.wa.gov/updaterpt2ndtier
Vantage Data Center - Health Impact Assessment Protocol
Methods and procedures to follow for a Health Impact Assessment (Second Tier Review) for Vantage Data Center, 3/7/16
https://ecology.wa.gov/vantage-hia-protocol-030716ada
Clima Cover
Letter verifying that ClimaCover All Weather Protective Systems can be used as an alternative to sandbags in stormwater control.
https://ecology.wa.gov/climacover
Vantage Data Center - Health Impact Assessment Recommendation
Health Impact Assessment (Second Tier Review) Recommendation, 11/30/12
https://ecology.wa.gov/b-updated-vantage-tier2-recommendation-11302012
Sabey Intergate Data Center - Health Impact Assessment letter
Health Impact Assessment (Second Tier Review) Letter for Sabey Intergate Data Center, 6/22/11
https://ecology.wa.gov/sabey-2ndtier-letter-to-karen-wood-06222011
Sabey Intergate Data Center - Health Impact Assessment
Health Impact Assessment (Second Tier Review) Technical Support Document for Sabey Intergate Data Center, 6/22/11
https://ecology.wa.gov/sabeyquincy-2ndtier-tsd-06222011-final
Yahoo Data Center - Technical Support Document for Health Impact Assessment
Technical Support Document for Health Impact Assessment (Third Tier Review) for Yahoo Data Center, 2/8/11
https://ecology.wa.gov/yahoo-tier3-tsd-2-8
EPA Form 2B
Application for permit to discharge wastewater from concentrated animal feeding operations and aquatic animal production facilities.
https://ecology.wa.gov/form_2b
Microsoft Oxford Data Center - Health Impact Assessment letter
Health Impact Assessment (Second Tier Review) Letter for Microsoft Oxford Data Center, 9/27/16
https://ecology.wa.gov/mwh-tier2ltr-09272016
Microsoft Oxford Data Center - Health Impact Assessment (second revised)
Second Revised Health Impact Assessment for Microsoft Oxford Data Center, 9/27/16
https://ecology.wa.gov/mwh-hiarec-09272016
Evaluating if SQER and de minimis values should be the same (WAC 173-460) 01/17/19
This document evaluates if SQER and de minimis values should be the same in Chapter 173-460 WAC.
https://ecology.wa.gov/20190117-sqeranddeminimisvaluesshouldbethesame
Low Impact Development Operations & Maintenance Training
Low Impact Development Operations and Maintenance Training
https://ecology.wa.gov/lido-mtrainingpowerpoint
Microsoft Oxford Data Center - Health Impact Assessment letter
Health Impact Assessment (Second Tier Review) Letter for Microsoft Oxford Data Center, 5/13/15
https://ecology.wa.gov/20150513oxfordhialtr
Duwamish Waterway_Order for Reimbursement of Expenses, Docket #8566
Order for Reimbursement of Expenses, Docket #8566
https://ecology.wa.gov/duwamish-waterway-2
Microsoft Oxford Data Center - Health Impact Assessment letter
Health Impact Assessment (Second Tier Review) Letter for Microsoft Oxford Data Center, 6/13/14
https://ecology.wa.gov/microsoftoxfordtier2letter-06132014
Microsoft Columbia C06, Quincy, Preliminary Determination
This is the preliminary determination for the Microsoft Columbia expansion, C06.
https://ecology.wa.gov/20191209mscolumbiapd
Director's Preliminary Linkage Decision
The Director of Ecology made a preliminary decision to pursue linking Washington's carbon market with California and Québec.
https://ecology.wa.gov/20231002directorlinkagedecision
Climate Resilience Strategy Engagement Plan
This Engagement Plan supports Ecology in our efforts to develop an updated statewide Climate Resilience Strategy.
https://ecology.wa.gov/climate-resilience-strategy-engagement-plan-final
Vantage Data Center Health Impact Assessment (Tier 2 review) letter, April 27, 2022
This is the April 27, 2022 health impact assessment (Tier 2 review) letter for Vantage Data Center.
https://ecology.wa.gov/20220427vantagetier2ltr
Climate Resilient Riparian Grant web-map tutorial
This document provides an overview for the Climate Resilient Riparian Systems application resources web map.
https://ecology.wa.gov/cr2sl-webmap-overview
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