Facility Site ID: 15518216 Cleanup Site ID: 14878

Historic Carson Cleaners
Historic Carson Cleaners

Site Status - June 2021

Last Updated: June 17, 2021

中文信息

完整的站點信息冊子

提交電子版評論

2021年4月26日至5月25日

有問題請聯係 Meredith Waldref,電話 425-229-3683並要求翻譯員服務。


Information in English:

Site information sheet

View Response to Comments

Comment Period:
April 26 – May 25, 2021

Questions?
Call Meredith Waldref
at 425-229-3683

Or Ian Fawley
at 425-324-5901

Ecology invited comments for 30-days (April 26 - May 25, 2021) on an Agreed Order (legal agreement) and Public Participation Plan for the Carson Cleaners cleanup site (Site). The Site is located at 4701 Brooklyn Ave NE in Seattle’s University District neighborhood.

Ecology has reviewed and considered all public comments received on the Agreed Order and Public Participation Plan. Based on Ecology's evaluation of the comments, no changes were necessary in the documents, and they are being finalized. (Download Ecology's Response to Comments)

Work will begin on the Remedial Investigation and Feasibility Study. See infographic below and visit Ecology's cleanup process webpage to learn more about Washington's formal cleanup process. 

The legal agreement between Ecology, Tahn Associates LLC, and Carson Cleaners requires the Potentially Liable Persons (PLPs) to conduct a Remedial Investigation and Feasibility Study, and prepare a Draft Cleanup Action Plan. In April 2021, Ecology invited comment on:

·        Draft Agreed Order: This legal agreement requires the PLPs to investigate and describe contamination (Remedial Investigation), analyze cleanup options (Feasibility Study), and develop a draft Cleanup Action Plan (dCAP). The dCAP describes how the selected cleanup alternative will be performed. The public will have a chance to make public comments after these documents are created.

·        Public Participation Plan:  This document explains how people can participate in the cleanup process.

Background

Preliminary Carson Cleaner site map
Preliminary Carson Cleaner site map

The former Carson Cleaners operated a dry-cleaning business as a tenant on the property from the early 1960s until 2014. During the 2018-2019 environmental cleanup of the Chevron 90129 Site across the street, chemicals commonly used in dry cleaning operations were discovered in the southwestern portion of the Chevron property and along the edge of NE 47th Street. These chemicals were in the form of halogenated volatile organic compounds (HVOC). After studying the groundwater flow direction, it was determined that these chemicals may have come from Carson Cleaners.

Tahn Associates LLC purchased the property in 2012 and is the current owner. As the owners of the property, Ecology determined that Tahn Associates LLC is a PLP in this cleanup.

Contamination

Chemicals present in soil and groundwater:

·        Halogenated Volatile Organic Compounds (HVOCs)

o   Trichloroethylene (TCE),

o   Tetrachloroethylene (PCE),

o   Vinyl Chloride (VC),

o   1,1-Dichloroethene and 1,2-Dichloroethene, known collectively as Dichloroethene (DCE)

State Cleanup Process

 

The Model Toxics Control Act (MTCA) 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 over a variable timeline (see graphic below with current step highlighted in red).

Legal 7
Document Title Document Date Document Type
Carson Cleaners Agreed Order DE 19805 6/17/2021 Agreed Order
Public Review Carson Cleaners draft Agreed Order 04-05-2021 4/5/2021 Agreed Order
PLP Determination Carson Cleaners Wayne Rickert 12-04-2019 12/4/2019 Final Potentially Liable Person Status Letter
PLP Determination Carson Cleaners Gary Rickert 09-03-2019 9/3/2019 Final Potentially Liable Person Status Letter
PLP Determination Carson Cleaners Carson Cleaners, 09-03-2019 9/3/2019 Final Potentially Liable Person Status Letter
PLP Determination Carson Cleaners Than Associates LLC 09-03-2019 9/3/2019 Final Potentially Liable Person Status Letter
Tahn Associates LLC Signed Waiver 07-30-2019 7/30/2019 Final Potentially Liable Person Status Letter
Map 1
Document Title Document Date Document Type
Site Map 5/5/2021 Map
Public Information 5
Document Title Document Date Document Type
Carson Cleaners - Response to Comments - June 2021 6/17/2021 Responsiveness Summary
Carson Cleaners Fact Sheet April 2021 - Chinese (Simplified) 4/26/2021 Fact Sheet\Public Notices
Carson Cleaners Fact Sheet April 2021 - English 4/25/2021 Fact Sheet\Public Notices
Carson Cleaners draft Public Participation Plan April 2021 4/5/2021 Public Participation Plan
Carson Cleaners Agreed Order Kick-off meeting presentation V3 01-12-2021 1/12/2021 Multimedia
Technical Reports 52
Document Title Document Date Document Type
Carson Cleaners 4th QTR Progress Report 01-16-2023 1/16/2024 Progress Report
Carson Cleaners 4th QTR Progress Report 01-16-2023 Lab Reports 1/16/2024 Progress Report
Carson Cleaners 4th QTR Progress Report 01-16-2023 Data Validation 1/16/2024 Progress Report
Indoor Air & GW Conditions comments Christ Episcopal Church 11-13-23 11/13/2023 Site Specific Technical Document - other
Carson Cleaners Q2 2023 UDPA Comment Letter 10-20-2023 10/20/2023 Site Specific Administrative Document - other (Administrative correspondence)
CC Q3 2023 Draft Quarterly Progress Report 10-13-2023 10/13/2023 Progress Report
Quarterly Progress Report Second Quarter 2023 07-17-2023 7/14/2023 Progress Report
Carson Cleaners - May 11, 2023 Call Summary 05-15-2023 5/15/2023 Site Specific Administrative Document - other (Administrative correspondence)
CC Q1 2023 Quarterly Progress Report App A_Part 2 04-17-2023 4/17/2023 Progress Report
CC Q1 2023 Quarterly Progress Report App A_Part 1 04-17-2023 4/17/2023 Progress Report
CC Q1 2023 Quarterly Progress Report 04-17-2023 4/17/2023 Progress Report
EIM data of comingled Plumes Fig01_BenzeneResults 02-10-2023 2/10/2023 Site Specific Technical Document - other
EIM data of comingled Plumes Fig03_DistributionOfPCE_TCE_VC2 02-10-2023 2/10/2023 Site Specific Technical Document - other
EIM data of comingled Plumes Fig02_GROResults 02-10-2023 2/10/2023 Site Specific Technical Document - other
CC Q4 2022 Quarterly Progress Report_Ecology-20230113 1/13/2023 Progress Report
Carson Cleaners - Q4 2022 Monitoring Update 12-28-2022 12/28/2022 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners - Field Update for Week of November 14_ 2022 11-21-2022 11/21/2022 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners - RI Implementation Weekly Update 11-14-2022 11/14/2022 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners - October 2022 Project Update 11-04-2022 11/4/2022 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners - Notice of Upcoming Field Work 10-25-2022 10/25/2022 Site Specific Administrative Document - other (Administrative correspondence)
CC Q3 2022 Quarterly Progress Report_Ecology_2022.10.14 10/14/2022 Progress Report
Carson Cleaners Q3 2022 Quarterly Progress Report_Ecology_2022.10.14 10/14/2022 Progress Report
Re_ Carson Cleaners August 2022 Project Update 09-06-2022 9/6/2022 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners August 2022 Project Update 09-02-2022 9/2/2022 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners Schedule Extension_2022.09.02 9/2/2022 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners Quarterly Progress Report Second Quarter 2022 7/19/2022 Progress Report
Carson Cleaners - June 2022 Project Update 07-01-2022 7/1/2022 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners - May 2022 Project Update 06-03-2022 6/3/2022 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners - April 2022 Project Update 05-06-2022 5/6/2022 Site Specific Administrative Document - other (Administrative correspondence)
CC Q1 2022 Quarterly Progress Report_Ecology_2022.04.15 4/15/2022 Progress Report
Carson Cleaners Quarterly Progress Report First Quarter 2022 04-15-2022 4/15/2022 Progress Report
Carson Cleaners Site - February 2022 Project Update 03-04-2022 3/4/2022 Site Specific Administrative Document - other (Administrative correspondence)
CC Q4 2021 Quarterly Progress Report_Ecology 01-14-2022 1/14/2022 Progress Report
Carson Cleaners Site - December 2021 Project Update 12-30-2021 12/30/2021 Progress Report
Carson Cleaners RIWP approval 10-12-2021 10/12/2021 Remedial Investigation Work Plan
CarsonCleaners_RIWP_2021.10.08_final 10/8/2021 Remedial Investigation Work Plan
CarsonCleaners_HASP_2021.10.08_final 10/8/2021 Remedial Investigation Work Plan
Carson Cleaners Facility GW Data Memo 2-12-2021 2/12/2021 Site Specific Technical Document - other
Carson Cleaners - Ecology letter Re: Evaluation of TCE Risk 10/15/2020 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners Vapor Intrusion Evaluation 10-05-2020 10/5/2020 Site Specific Technical Document - other
Tahn Associates VIA Work Plan Addendum Schedule 07-17-2020 7/17/2020 Remedial Investigation Work Plan
Fig 1_Site and AoC_monitoring well location Tahn Associates VIA Work Plan Addendum 07-17-2020 7/17/2020 Remedial Investigation Work Plan
Vapor Intrusion Evaluation Work Plan Addendum Carson Cleaners, Inc 06-30-2020 6/30/2020 Remedial Investigation Work Plan
Vapor Intrusion Evaluation 02-2020_Rev 1 2/28/2020 Remedial Investigation Work Plan
Carson Cleaners VI Evaluation Work Plan 01-24-20 Final 1/24/2020 Remedial Investigation Work Plan
Soil & Ground Water Data Package 10-28-2019 12/18/2019 Site Specific Technical Document - other
Carson Cleaners - Ecology Letter Re: Request for Evaluation of TCE Risks 11/7/2019 Site Specific Administrative Document - other (Administrative correspondence)
Than Associates Combined Early Notice and Prelim PLP Status Letter 04-16-2019 4/16/2019 Site Specific Administrative Document - other (Administrative correspondence)
Rickert Ownership Group Combined Early Notice and Prelim PLP Status Letter 04-16-2019 4/16/2019 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners Inc Combined Early Notice and Prelim PLP Status Letter 04-16-2019 4/16/2019 Site Specific Administrative Document - other (Administrative correspondence)
Carson Cleaners - Initial Investigation Field Report 2/6/2019 Initial Investigation Report
Carson Cleaners - Title Review Technical Memorandum 2/1/2019 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 - University Public Library
    5009 Roosevelt Way NE
    Seattle, 98105
    This location may only have print documents available during open comment periods.

Contaminants 1

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Halogenated Organics - Halogenated Solvents 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.