Facility Site ID: 2322
Cleanup Site ID: 5089

Cleanup site facing Southeast from 24th Avenue
Cleanup site facing Southeast from 24th Avenue
This Site is a “Mixed Funding Site” which Ecology is responsible for the cleanup.  As part of the Site Cleanup Action work, construction of the treatment system is scheduled for the second half of 2023.

The work will include:
  • Installation of remediation wells (August & September 2023)
  • Installation of groundwater and soil vapor treatment system components (September & October 2023)
  • Soil and groundwater sampling (August through November 2023)
  • System testing and startup (October & November 2023)

  • After system construction, testing, and startup, the system will be operated and maintained. Sampling will be conducted during system operation to evaluate ongoing treatment system effectiveness.

    General Cleanup Process

    MTCA Cleanup Process
    MTCA Cleanup Process

    The Model Toxics Control Act (MTCA; Chapter 70.105D RCW) is Washington’s environmental cleanup law. It provides requirements for contaminated site cleanup and sets standards that protect human health and the environment. Ecology enacts the MTCA and oversees cleanups. The MTCA site cleanup process is completed in steps (see graphic) over a variable timeline.

    Site Information

    Circle K Cleanup Site Map
    Circle K Cleanup Site Map

    The Site is located at 2350 24th Avenue East, Seattle, WA. The Property is located in a mixed commercial area of the Montlake residential neighborhood.

    A former Circle K service station operated on the Site from 1968 until 1990. Currently The property consists of a one-story building and a newer addition to it, which are presently being utilized as a retail dry-cleaning store and a convenience store, known as Jay’s Cleaners and Mont’s Market.

    1989:  Petroleum contamination was discovered in both soil and groundwater due to a leaking underground storage tank. Approximately 4,000 to 6,000 gallons of gasoline was released. In October, six underground storage tanks and 900 cubic yards of contaminated soil were excavated. 

    1990:  The gasoline pump island was demolished. The gasoline pump island was demolished. 

    1992:  Ecology and a new property owner entered into a Mixed Funding Consent Decree where Ecology provided the property owner a loan from state funds to cover a portion of the cleanup costs. Ecology conducted an early cleanup action, called an interim action.  Ecology’s interim action:

    o    Removed leaking tanks

    o    Conducted partial soil evacuation

    o    Installed a product recovery system that operated until 1997 

    2005:  Ecology conducted Pilot Study tests in 2005 and in 2017 to evaluate other potential cleanup alternative for remaining contamination. 

    2006: Results from the November groundwater monitoring showed presence of free products in two wells located within the property and two wells located on East McGraw Street. 

    2017: Ecology conducted another Pilot Study test 

    2018: Ecology held a 30-day public comment period on the draft Remedial Investigation, draft Feasibility Study, draft Cleanup Action Plan, and State Environmental Policy Act.

    Contamination

    In 2017 Ecology completed an environmental study (Remedial Investigation/Feasibility Study, RI/FS) of the Site and assessed a range of cleanup options. 

    The study found chemicals in soil and groundwater from a former service station and lube facility:

    ·         Petroleum products (Gasoline, Diesel, Oil-range Total Petroleum Hydrocarbons)

    ·         Benzene, Toluene, Ethyl-Benzene, and Xylene (BTEX)

    The petroleum plume has extended off-property beneath adjacent streets and residential property.

    Public Participation

     Current Circle K 1461 cleanup site Public Participation Plan 

    This plan includes information for the public regarding opportunities to get involved in the cleanup process. The outreach activities and mechanisms presented reflect Ecology’s current plans for keeping the public informed and for receiving information and comments from the public.

    Legal 4
    Document Title Document Date Document Type
    Circle K 1461 - Release of Lien 3/7/2008 Lien related document
    Circle K 1461 - Chapter 11 Settlement Agreement 3/26/1993 Court Settlement Agreement (liability allocation)
    Circle K 1461 - Consent Decree 4/8/1992 Consent Decree
    Circle K 1461 - Early Notice Letter 3/20/1991 Early Notice Letter
    Map 1
    Document Title Document Date Document Type
    Circle K 1461 - Site Map 9/16/2016 Map
    Outreach Information 11
    Document Title Document Date Document Type
    Circle K 1461 - Response to Comments Summary - October 2018 10/26/2018 Responsiveness Summary
    Circle K 1461 - September 2018 Fact Sheet 8/29/2018 Fact Sheet\Public Notices
    Circle K 1461 - September 2018 Public Participation Plan 8/29/2018 Public Participation Plan
    Circle K 1461 - Construction Flier in Spanish 9/22/2016 Fact Sheet\Public Notices
    Circle K 1461 - Construction Flier in English 9/22/2016 Fact Sheet\Public Notices
    Circle K 1461 - January 1992 Fact Sheet 1/31/2016 Fact Sheet\Public Notices
    Circle K 1461 - Responsiveness Summary 2/25/1992 Responsiveness Summary
    Circle K 1461 - December 1991 Fact Sheet 12/31/1991 Fact Sheet\Public Notices
    Circle K 1461 - Repository Check List 12/13/1991 Public Participation Plan
    Circle K 1461 - Mailing List 12/11/1991 Public Participation Plan
    Circle K 1461 - Public Participation Plan 12/11/1991 Public Participation Plan
    State Environmental Policy Act 2
    Document Title Document Date Document Type
    Circle K 1461 - Determination of Nonsignificance 9/17/2018 SEPA Documents
    Circle K 1461 - SEPA Checklist 8/28/2018 SEPA Documents
    Technical Reports 70
    Document Title Document Date Document Type
    Circle K KCIW May Results Table 6/24/2025 Site Specific Technical Document - Other
    Circle K 1461, KCIW Permit request for sampling event decrease 6/24/2025 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K Monthly Progres Update 05-20-2025 6/20/2025 Progress Report
    Circle K 1461 1st QTR 2025 Remedial Progress Evaluation Report 6/16/2025 Site Specific Technical Document - Other
    Circle K 1461 KCIW Permit 614-01 May 2025 SMR data 6/16/2025 Site Specific Technical Document - Other
    Circle K 1461 KCIW Permit 614-01 May 2025 SMR 6/16/2025 Site Specific Technical Document - Other
    Circle K 1461 1st QTR 2025 Remedial Progress Evaluation Report 6/13/2025 Site Specific Technical Document - Other
    Glacier Circle K Notice of Final Acceptance C2300123 5/30/2025 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K Remediation KCIW Permit #4614-01 SMR 5/27/2025 Site Specific Technical Document - Other
    CircleK_OM_Manual_Final-20250521 5/21/2025 Construction Plans and Specifications
    Final_ConstructionCompletionReport_CircleK1461 5/21/2025 Construction Plans and Specifications
    Circle K Substantial Completion Letter to Glacier 5/15/2025 Construction Plans and Specifications
    Circle K Completion Report_FINAL_May 14 5/14/2025 Construction Plans and Specifications
    Circle K FINAL AS BUILT_May 14 5/14/2025 Construction Plans and Specifications
    Circle K 1461 - O&M Monthly Progress Update 4/22/2025 Progress Report
    Circle K Monthly Progres Update 04-21-2025 4/21/2025 Progress Report
    Circle K 1461 - Tech Memo: Unknown Utilities and Shallow Soil 3/29/2025 Site Specific Technical Document - Other
    Circle K 1461 - Glacier Notice of Substantial Completion 3/28/2025 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K 1461 - Ecology Notice of Substantial Completion 2/28/2025 Site Specific Technical Document - Other
    Circle K 1461 - Final Engineering Design Report Addendum 11/21/2023 Engineering Design Report
    Circle K 1461 - O&M Manual 3/30/2023 Operation and Maintenance Plan
    Circle K 1461 - Final Compliance Monitoring Plan 11/22/2022 Monitoring Plan
    Circle K 1461 - A-E Services Progress Report 5/27/2022 Progress Report
    Circle K 1461 - A-E Services Progress Report 4/29/2022 Progress Report
    Circle K 1461 - A-E Services Progress Report 4/1/2022 Progress Report
    Circle K 1461 - A-E Services Progress Report 2/25/2022 Progress Report
    Circle K 1461 - Final Engineering Design Report Text Tables Figs 12/10/2021 Engineering Design Report
    Circle K 1461 - Final Engineering Design Report Appendices 12/10/2021 Engineering Design Report
    Circle K 1461 - Ecology Response to Young-Do Inquiry 10/22/2019 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K 1461 - Informational Meeting for A-E Project Support 9/30/2019 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K 1461 - Declaration of No Cultural Resource Impact 11/28/2018 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K 1461 - Cleanup Action Plan cover page final explanation 11/18/2018 Cleanup Action Plan
    Circle K 1461 - Public Inadvertent Discovery Plan 9/17/2018 Site Specific Technical Document - Other
    Circle K 1461 - Preliminary Draft Cleanup Action Plan 12/18/2017 Cleanup Action Plan
    Circle K 1461 - Draft RI/FS Report 12/14/2017 Remedial Investigation / Feasibility Study Report
    Circle K 1461 - Signed UIC Well Registration for insitu FS Pilot Study 2/8/2017 Site Specific Technical Document - Other
    Circle K 1461 - Pilot Study Work Plan 2/1/2017 Site Specific Technical Document - Other
    Circle K 1461 - Signed IDW Soil-Water Profiles 10/27/2016 Site Specific Technical Document - Other
    Circle K 1461 - Access Agreement 2415 E McGraw Street 6/20/2016 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K 1461 - Remedial Investigation Work Plan 4/7/2016 Remedial Investigation Work Plan
    Circle K 1461 - Summary of Subsurface Investigations Montlake Neighborhood Former Dry Cleaner 5/29/2013 Site Specific Technical Document - Other
    Circle K 1461 - Draft RI/FS 10/31/2009 Remedial Investigation / Feasibility Study Report
    Circle K 1461 - Draft RI/FS 9/30/2009 Remedial Investigation / Feasibility Study Report
    Circle K 1461 - Ecovac EFR Surfactant Injection Proposal 10/15/2007 Interim Action Plans and Reports
    Circle K 1461 - GW Monitoring 11/21/2006 Monitoring Report
    Circle K 1461 - GW Monitoring 11/7/2006 Monitoring Report
    Circle K 1461 - GW Monitoring 8/14/2006 Monitoring Report
    Circle K 1461 - GW Monitoring 2/16/2006 Monitoring Report
    Circle K 1461 - Investigation Report 6/30/2005 Site Specific Technical Document - Other
    Circle K 1461 - EcoVac Enhanced Fluid Recovery Pilot Test Results 6/13/2005 Interim Action Plans and Reports
    Circle K 1461 - GW Monitoring 5/11/2005 Monitoring Report
    Circle K 1461 - Field Investigation 11/26/2003 Site Specific Technical Document - Other
    Circle K 1461 - Cleanup Activity Updates 7/18/2002 Progress Report
    Circle K 1461 - Ecology Letter to D. Camille 6/19/2002 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K 1461 - Glacier Lab Report 4/25/2001 Interim Action Plans and Reports
    Circle K 1461 - Glacier Discharge Authorization 1/15/2001 Site Specific Technical Document - Other
    Circle K 1461 - Proposal for Groundwater Monitoring 12/19/2000 Monitoring Plan
    Circle K 1461 - Ecology Letter to Choung 12/6/2000 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K 1461 - Glacier Interim Report 1/11/2000 Progress Report
    Circle K 1461 - Glacier Field Report 7/7/1998 Progress Report
    Circle K 1461 - WA Dept Health (DOH) Health Investigation 6/9/1995 Human Health and/or Eco Risk Assessment
    Circle K 1461 - Ecology Letter to Renale 8/5/1994 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K 1461 - Ecology Letter to Chuong 8/5/1994 Site Specific Administrative Document - Other (Administrative Correspondence)
    Circle K 1461 - Site Hazard Assessment 6/30/1994 Site Hazard Assessment Report
    Circle K 1461 - Glacier First Phase Report 6/1/1992 Site Specific Technical Document - Other
    Circle K 1461 - Progress Report #2 11/12/1990 Progress Report
    Circle K 1461 - Progress Report #1 8/23/1990 Progress Report
    Circle K 1461 - GeoEngineers Report 3/6/1990 Monitoring Report
    Circle K 1461 - GeoEngineers Geotech Report 3/6/1990 Site Specific Technical Document - Other
    Circle K 1461 - Historical Boring Logs 1/9/1990 Site Specific Technical Document - Other
    There may be more documents related to this site. To obtain documents not available electronically, you will need to make a public records request.

    Places to see print documents

    • Northwest Regional Office
      15700 Dayton Ave N
      Shoreline, 98133
      Please schedule an appointment to view print documents at this location.
    • Seattle Public Library - Montlake Branch
      2401 24th Avenue East
      Seattle, 98112
      This location may only have print documents available during open comment periods.

    Contaminants 3

    Contaminant Type
    Soil
    Groundwater
    Surface Water
    Air
    Sediment
    Bedrock
    Non-Halogenated Organics - Non-Halogenated Solvents C C
    Non-Halogenated Organics - Benzene C C
    Non-Halogenated Organics - Petroleum-Gasoline C C
    S
    Suspected
    C
    Confirmed Above Cleanup Levels
    B
    Below Cleanup Levels
    RA
    Remediated-Above
    RB
    Remediated-Below
    R
    Remediated
    This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.