Burlington Environmental LLC Georgetown

Facility Site ID: 47779679 Cleanup Site ID: 2622

What's New?

​Last updated 9/2/2022

Two Cleanup Sites

Exterior view of one of the buildings at the site.
Exterior view of one of the buildings at the site.
Burlington Environmental, LLC and PSC (Phillips Services Corporation) Environmental Services, LLC are wholly owned subsidiaries of Clean Earth Environmental Solutions, Inc. (Clean Earth). We refer to Clean Earth/Burlington on this website because the company uses the name Clean Earth in public, but the facility is permitted as Burlington Environmental, LLC.

This page is about two cleanup sites:
     (1) East of 4th
     (2) West of 4th

“East of 4th” refers to the Clean Earth/Burlington-Georgetown site on the east side of Fourth Avenue South. On the east side of Fourth, Clean Earth/Burlington is the only potentially liable party (PLP) for the cleanup.

"West of 4th" refers to the Clean Earth/Burlington-Georgetown site on the west side of Fourth Avenue South. There are four PLPs responsible for the cleanup at the "West of 4th" site. One of those is Clean Earth/Burlington.  

Site Background - East Of 4Th

Chemical wastes contaminated soil and groundwater at the Clean Earth/Burlington Georgetown facility at 734 S. Lucile St. Clean Earth/Burlington must clean up this contamination.

In 1991, Ecology and EPA issued a permit to Burlington Environmental-Georgetown for treatment and storage of hazardous wastes. The permit required finding and cleaning up any contamination they caused.

In 2003, Clean Earth/Burlington closed this facility and removed all buildings. EPA gave oversight for this cleanup to Ecology. The next year, Clean Earth/Burlington built an underground barrier wall around highly contaminated groundwater to keep it from moving toward the Duwamish.

In 2010, Ecology issued Agreed Order #DE 7347 to Clean Earth/Burlington, mostly to address contamination east of 4th Ave.

Ecology approved cleanup engineering in 2011 and Clean Earth/Burlington did
most of the cleanup. However, in 2015 new cleanup actions were added to deal with stubbornly high levels of 1,4-dioxane in site groundwater.

In 2016 Clean Earth/Burlington began treating the groundwater within the underground barrier wall every six months for trichloroethylene (TCE) and vinyl chloride. The treatments help bacteria already in the groundwater break down these contaminants. These treatments ended in 2020.

From 2016 to 2018, Clean Earth/Burlington tested how to reduce the 1,4-dioxane in groundwater. The studies showed that modified ‘in situ chemical oxidation’ (ISCO), would work. So, in 2020 Clean Earth/Burlington injected chemical oxidant (sodium persulfate and other chemicals) into the groundwater to breakdown the 1,4-dioxane. Groundwater monitoring is used to make sure the treatments work.

Meanwhile, in 2019, Ecology approved property use restrictions for part of the site. Although a lot of contamination has been cleaned up, some contamination remains and property use restrictions are needed to protect human health and the environment. Restrictions include not allowing homes to be built on the property.

Groundwater outside of the barrier wall is also contaminated with petroleum-related substances, TCE, vinyl chloride, and 1,4-dioxane. Groundwater within the barrier wall contains higher concentrations of these chemicals and other chemicals. For details, see “contamination, E of 4th”.

Contamination - East Of 4Th

Soil is contaminated on the Clean Earth/Burlington and Union Pacific Railroad properties. As detailed in the Remedial Investigation (RI), remaining contaminants include:
      
-Gasoline and related petroleum products. 
     
-Chlorinated solvents, trichloroethylene (TCE), and vinyl chloride (VC). *These are chemicals that may cause cancer.
     
-Polycyclic aromatic hydrocarbons (PAHs). *These are cancer-causing chemicals.

-Polychlorinated biphenyls (PCB). *These are man-made, cancer-causing chemicals.

Groundwater outside of the Clean Earth/Burlington barrier wall is currently contaminated with:

-Gasoline and related petroleum products.

-Chlorinated solvents, TCE, and VC. *These chemicals may cause cancer.

-1,4-dioxane. *A chemical that mixes well with water and can harm the eyes, skin, lungs, liver, and kidneys and may cause cancer. It was used in industry to stabilize chlorinated solvents.

Groundwater inside the barrier wall has higher levels of contaminants.

View cleanup documents for East of 4th.

Cleanup Process - East Of 4Th

Washington's cleanup process.
Washington's cleanup process.
Clean Earth/Burlington must follow Washington’s cleanup process (see Figure). We are in the cleanup phase.

The cleanup actions are described separately for the areas inside the barrier wall and outside the barrier wall. The combined actions address all contamination. Even after cleanup, this area is expected to be in industrial use.

Area inside the barrier wall
     
In 1994, Clean Earth/Burlington removed and treated contaminants that evaporate easily from soils above the water table using water table-lowering and soil vapor extraction (SVE). The water table is the depth where soil is soaked with water. They did a second phase of SVE from 2012–2014.

Between 2003–2004, Clean Earth/Burlington installed the underground barrier wall. It surrounds most of the permitted facility and keeps contaminated groundwater within the wall. They pump and treat this groundwater, and take care to keep it inside the wall.  
       
In 2012, Clean Earth/Burlington dug up and removed 200 cubic yards of PCB-contaminated soils from the property. They paved the area to prevent contact with remaining soil contamination.
       
In 2015, Clean Earth/Burlington began a treatment for groundwater with chlorinated solvent contamination inside the barrier wall: in-situ bioremediation. This treatment helps bacteria already in the groundwater break down the toxic chemicals. This was done twice a year for 5 years.

Area outside the barrier wall
     
In 2003, Clean Earth/Burlington provided 30 homes above contaminated areas with vapor reduction systems to protect indoor air. Where the contamination is still high enough to present a risk of vapor intrusion, the systems are still running. In 2021 they submitted a Tier 5 evaluation to determine when a vapor mitigation system is a candidate for shutdown, testing, and eventually removal.

In 2012, Clean Earth/Burlington removed and disposed of 5,000 tons of PCB-contaminated soil from the Union Pacific Railroad property. They improved biological breakdown of remaining contamination by putting vegetable oil in the bottom of the excavation before it was backfilled. Then they paved the area with concrete to prevent exposure to any remaining soil contamination.
      
Between 2012–2014, Clean Earth/Burlington used soil vapor extraction (SVE) to remove volatile organic contamination from soil on the Union Pacific Railroad property.

Between 2016–2018, Clean Earth/Burlington tested different chemicals to treat 1,4 dioxane. In 2020, Clean Earth/Burlington injected chemical treatments in three locations to decrease levels of 1,4-dioxane in groundwater. They’re currently monitoring results.   

Clean Earth/Burlington will use a combination of administrative controls, institutional controls, and public communications in the area outside the barrier wall to limit exposure to contamination.
       
Clean Earth/Burlington regularly samples their monitoring wells to check groundwater quality inside and outside the barrier wall. Groundwater contamination is tracked over time to see how well the remedies are working.

The Feasibility Study (FS) evaluated many remediation technologies. The alternatives were evaluated separately for inside and outside the barrier wall.

Site Background - West Of 4Th

West of 4th Site Map
West of 4th Site Map
Contaminated groundwater traveled from the Burlington Environmental facility to areas west of 4th Avenue S., and mixed with contamination from three other companies: Art Brass Plating, Blaser Die Casting, and Capital Industries. These three companies AND Burlington Environmental are jointly responsible for cleaning up the West of 4th site. The four companies are the “Potentially Liable Persons,” or “PLPs,” under the state MTCA (Model Toxics Control Act) law.

Ecology has divided the West of 4th cleanup site into two units. We call them Site Unit 1 and Site Unit 2. Site Unit 1 is the more northern unit. Soil and groundwater are contaminated with chlorinated volatile organic compounds at both site units. In Site Unit 1 soil and groundwater are also contaminated with nickel and other toxic metals.

In 2008, Ecology issued Orders to Art Brass Plating, Blaser Die Casting, and Capital Industries. The Orders required the companies to investigate soils and groundwater contaminated with chlorinated volatile organic compounds (mainly, tetrachloroethene, TCE, and TCE’s degradation products). During the Art Brass Plating property investigation, high levels of toxic metals were found. The three companies finished their investigations and submitted Remedial Investigation (RI) Reports in 2012.

In 2014 Ecology issued Agreed Order (#DE 10402) to Art Brass Plating, Blaser Die Casting, Capital Industries, and Burlington Environmental. This Order created the West of 4th site. The Order requires that the four companies perform a joint Feasibility Study (FS) and submit FS Reports for Site Unit 1 and Site Unit 2.

The companies submitted revised FS Reports for the two Site Units in 2016. After Ecology’s review, the parties agreed to do two pilot studies in Site Unit 1 and an interim action in Site Unit 2 before choosing preferred cleanup actions for the site. The Agreed Order was amended in 2017 to include the two studies and the interim action.

In 2018 the companies began studying two potential cleanup methods to see if they would work at this site. Work plans for the two Site Unit 1 studies were approved in January 2018. See: 2017 SU1 Metals Pilot Test Work Plan Final; 2017 SU1 Downgradient DVOC Pilot Test Work Plan FINAL.

Later in 2018 the companies:

1. Installed new wells and collected soil and groundwater samples before the Metals Immobilization pilot study.

2. Completed the "bench-scale" portion of this study.

3. Injected sodium bicarbonate into groundwater to raise its pH.

4. Sampled groundwater to see how high the pH could be raised and for how long.

5. Installed groundwater wells and collected samples before for the CVOC pilot
study.

6. Injected chemicals into groundwater to break down TCE and vinyl chloride.

7. Started groundwater monitoring to see if the treatment was working.

In 2019 the companies continued to monitor groundwater in the Site Unit 1 areas where pilot studies were active. They found that the injections for the Metals Immobilization raised the groundwater pH, but not as high as needed. The companies then tried a lab study to see if different chemicals or different concentrations could more effective. In August, a second injection event was done, this time using a solution of both sodium bicarbonate and sodium hydroxide. This second injection was better at raising the pH in the groundwater.

The two figures below show the site areas where the Site Unit 1 pilot studies were conducted. 

West Of 4Th, Site Unit 1 – Cvoc Pilot Study Near Duwamish Waterway

Pilot Study Locations, Art Brass Plating
Pilot Study Locations, Art Brass Plating

In this site area groundwater is contaminated with TCE and vinyl chloride. The study will determine if in-situ chemical reduction (ISCR) and enhanced in situ bioremediation (ISB)
will be an effective treatment approach.

West Of 4Th, Site Unit 1 – Metals Immobilization Pilot Study Near Art Brass Plating

Interim Action Injection Points
Interim Action Injection Points

This is an area where elevated levels of nickel and other metals are present in groundwater. The study will determine the best way to raise groundwater pH, and thereby lower metals concentrations.

In 2018 the companies also submitted work plans for the Site Unit 2 interim action. The first work plan was approved in January 2018. See: 2017 SU2 Interim Action Work Plan Revised. The interim action was designed to use ISCO for the treatment of soil
contamination below Capital Industries’ Plant 4. TCE and tetrachloroethene (PCE) were the target contaminants and the selected oxidant was potassium permanganate.

The figure below shows the site area where the interim action was conducted.

West Of 4Th, Site Unit 2 - Interim Action

Implementation of the interim action was staged.

The first stage targeted a sub-set of the total locations planned for injection. In August 2018 oxidant injections were conducted at five Plant 4 locations. The injections were followed by soilborings, and samples were collected from boring depths where the oxidant
was observed (potassium permanganate has a purplish color). 

Sampling and monitoring results in August and September after the first stage injections were completed indicated that the oxidant was poorly and unpredictably distributed (See: Draft Capital Industries Plant 4 Interim Action - Stage 1 In-Situ Chemical Oxidation Report.) As a consequence, Ecology and the companies decided not to proceed with the second stage of injections. Instead, in 2019 the companies decided to study the feasibility
of using soil vapor extraction (SVE) to treat Plant 4’s contaminated soils. A work plan for an SVE study was submitted to Ecology for review (See: Draft Capital Industries Plant 4 Interim Action - Soil Vapor Extraction Pilot Study Work Plan), and the study was
completed during the summer.  It concluded that SVE was a feasible treatment technology for contaminated soils at Plant 4.

Current Status - West Of 4Th

Currently, soils are contaminated on the Art Brass Plating, Blaser Die Casting, and Capital Industries properties. Contaminants include PCE, TCE, and – at Art Brass Plating –
plating-related metals like nickel. Where soils are contaminated above cleanup levels they are covered with paving or buildings.

Groundwater at the West of 4th site is currently contaminated with PCE, TCE, vinyl chloride, metals, and 1,4-dioxane. Elevated levels of TCE and vinyl chloride have migrated as far west as the Duwamish Waterway and are discharging to the river. 

The 2018/2019 CVOC pilot study targeted contaminated groundwater approaching the Duwamish Waterway. Monitoring results indicate that the chemicals injected into groundwater to chemically reduce and biodegrade contaminants have been effective and have dramatically reduced TCE levels.

The four West of 4th companies are currently completing a joint Feasibility Study (FS). Their amended Agreed Order requires that they submit “Completion Reports” at the conclusion of the two FS pilot studies and interim action. However, since the Site Unit 2 interim action was not completed, Ecology accepted the February 2019 Stage 1 ISCO Report as Site Unit 2’s “completion report.”  We also waived the submittal of Site Unit 1’s “completion reports” for the two pilot studies. Pilot study monitoring data were submitted in quarterly progress reports and Ecology and the companies discussed these data throughout 2019 as they became available.

The next steps at the site are:

1. Preparation of a technical memorandum, discussing the results of two years of site-wide groundwater water-level measurements (including “continuous” results obtained by transducers installed in a number of monitoring wells). The measurements have been taken to help determine groundwater flow directions. The memorandum was submitted in April 2020. 

2. Preparation of FS Report Addenda (one Addendum for each Site Unit’s FS Report). These documents will evaluate specific alternatives for cleaning up the site and conclude with the companies’ preferred cleanup actions. Draft documents have been submitted, and are currently being reviewed and revised.

Following Ecology’s review of the groundwater technical memorandum and the two FS Report Addenda, we will choose our preferred cleanup action for the site. It will be described in a draft Cleanup Action Plan (CAP) and made available for public review. At that time we will also draft a new Agreed Order. After public comment on the CAP
and new Agreed Order, Ecology will finalize the documents and the four companies will
design and implement the selected cleanup action(s).

View comprehensive list cleanup documents for West of 4th.

Why These Cleanups Matter

The Environmental Protection Agency (EPA) added the 5-mile stretch of the Duwamish River that flows north into Elliot Bay to the Superfund National Priorities List in 2001. This part of the river is now referred to as the “Lower Duwamish Waterway (LDW) Superfund Site.” 

Sediments (mud) in the river contain a wide range of contaminants due to decades of industrial activity and runoff from urban areas. EPA is leading efforts to clean up these river sediments. Ecology is leading efforts to control sources of contamination from the surrounding land. Contaminants in the soil and groundwater around the river pose a risk to human health and the environment. These contaminants can find their way into the river through storm runoff and other pathways. 

Ecology’s Lower Duwamish Waterway source control efforts have the long-term goals of avoiding recontamination of the river bottom and restoring acceptable water quality in the river.

Site use restrictions called institutional controls are in effect

Institutional controls can be fences, signs, or restrictions on how the property is used. For instance, an institutional control may prohibit installing drinking water wells or disturbing a protective cap that isolates contamination. These restrictions keep the contamination contained and keep people from being exposed to the contamination. The controls are usually listed in environmental covenants recorded with the county.

Periodic reviews are required when institutional controls are required at a site. Ecology conducts reviews to make sure the controls remain effective and the cleanup still protects human health and the environment. We conduct periodic reviews about every five years.

Environmental Covenant

County Recording #: 20190408000048
County Recording Date: 4/8/2019

Restrictions/Requirements

  • Control Stormwater
  • Control Vapor/Gas
  • Maintain/Protect Monitoring System
  • Ongoing Maintenance of Remedy
  • Prevent the Reuse or Relocation of Site Soil
  • Prohibit Soil Disturbance
  • Restrict Access
  • Restrict All Ground Water Extraction/Well Installation
  • Restrict Domestic Ground Water Extraction/Well Installation
  • Restrict Land Use

Restricted Media

  • Air
  • Groundwater
  • Soil
  • Surface Water
Legal 8
Document Title Document Date Document Type
Environmental Covenant cover letter 4/11/2019 Environmental Covenant; Alternative Mechanism
Environmental Covenant 4/8/2019 Environmental Covenant; Alternative Mechanism
FIRST AMENDMENT TO AGREED ORDER 8/30/2017 Agreed Order Amendment
A viso de Comentarios Públicos: Propuesta acción de limpieza para el sitio de la empresa “Burlington Environmental (PSC – Georgetown)” 6/17/2015 Agreed Order Amendment
PublicComment Notice: Proposed Cleanup Action for Burlington Environmental (PSC - Georgetown Facility) 6/17/2015 Consent Decree - Amendment
Cover Letter: Draft Agreed Order and Cleanup Action Plan Amendment 6/16/2015 Agreed Order Amendment
Draft - Agreed Order Amendment 6/5/2015 Agreed Order Amendment
Agreed Order for Corrective and Remedial Action 5/17/2015 Agreed Order
Map 2
Public Information 24
Document Title Document Date Document Type
Fact Sheet (Vietnamese) - East of 4th Clean Earth Burlington Georgetown 1/10/2022 Fact Sheet\Public Notices
Fact Sheet (Spanish) - East of 4th Clean Earth Burlington Georgetown 1/10/2022 Fact Sheet\Public Notices
Fact Sheet (Khmer) - East of 4th Clean Earth Burlington Georgetown 1/10/2022 Fact Sheet\Public Notices
Fact Sheet (Chinese) - East of 4th Clean Earth Burlington Georgetown 1/10/2022 Fact Sheet\Public Notices
Fact Sheet - East of 4th Clean Earth Burlington Georgetown 1/10/2022 Fact Sheet\Public Notices
Public Participation Plan - East of 4th Clean Earth Burlington Georgetown 1/10/2022 Public Participation Plan
Stericycle-Georgetown East of 4th ISCO Flyer 12/30/2019 Fact Sheet\Public Notices
West of 4th Responsiveness Summary Agreed Order 11/20/2017 Responsiveness Summary
West of 4th Comment Period Mailer 9/28/2017 Fact Sheet\Public Notices
Glossary of Terms 8/29/2017 Fact Sheet\Public Notices
2017 East of 4th Pilot Study Handout Chinese 4/24/2017 Fact Sheet\Public Notices
2017 East of 4th Pilot Study Handout Spanish 4/18/2017 Fact Sheet\Public Notices
2017 East of 4th Pilot Study Handout 4/18/2017 Fact Sheet\Public Notices
ATSDR Public Health Statement, TCE 11/1/2016 Fact Sheet\Public Notices
In-situ Oxidation Pilot Study Handout 5/10/2016 Focus Sheet
Public Participation Plan for West of 4th 1/1/2015 Public Participation Plan
Draft Dangerous Waste Permit for Burlington Environmental's PSC-Georgetown Facility Public Comment Notice 5/1/2014 Fact Sheet\Public Notices
EPA Factsheet 1,4 dioxane 1/1/2014 Fact Sheet\Public Notices
EPA Citizen Guide to in Situ chemical reduction 9/1/2012 Fact Sheet\Public Notices
EPA Citizen Guide to in Situ chemical oxidation 9/1/2012 Fact Sheet\Public Notices
EPA Citizen Guide to Bioremediation 9/1/2012 Fact Sheet\Public Notices
East of 4th Public Participation Plan 10/25/2011 Public Participation Plan
ATSDR Public Health Statement, Vinyl Chloride 7/1/2006 Fact Sheet\Public Notices
ATSDR Public Health Statement, Nickel 8/1/2005 Fact Sheet\Public Notices
State Environmental Policy Act 3
Document Title Document Date Document Type
West of 4th SEPA DNS 9/22/2017 SEPA Documents
Determination of nonsignificance (DNS) 6/15/2015 SEPA Documents
Environmental Checklist 4/21/2015 SEPA Documents
Technical Reports 77
Document Title Document Date Document Type
Burlington Environmental, LLC Permit Lite Renewal FINAL 4/6/2022 Site Specific Technical Document - other
East of 4th Clean Earth Burlington Permit Lite Renewal - FINAL 4/6/2021 Site Specific Technical Document - other
Clean Earth Letter 2020 6/3/2020 Site Specific Administrative Document - other (Administrative correspondence)
Addendum to In Situ Metals Immobilization Pilot Study Field Implementation Work Plan - Site Unit 1 7/17/2019 Feasibility Study
Revised Full Scale ISCO Work Plan 7/15/2019 Site Specific Technical Document - other
Stericycle-GT Technical Memorandum-Full Scale ISCO Work Plan 4/8/2019 Site Specific Technical Document - other
Draft Capital Industries Plant 4 Interim Action - Soil Vapor Extraction Pilot Study Work Plan 4/5/2019 Feasibility Study
Draft Capital Industries Plant 4 Interim Action - Stage 1 In-Situ Chemical Oxidation Report 2/13/2019 Feasibility Study
PSC-Georgetown Tier 5 Well Installation Work Approval Letter 8/15/2018 Site Specific Technical Document - other
In Situ Metals Immobilization Pilot Study Field Implementation Work Plan, Site Unite 1, approval letter 8/14/2018 Feasibility Study
Stericycle Georgetown, Tier 5 Well Installation Work Plan 7/27/2018 Site Specific Technical Document - other
In Situ Metals Immobilization Field Study Field Implementation Work Plan, Site Unit 1, comment letter 7/2/2018 Feasibility Study
In Situ Metals Immobilization Field Implementation Work, Plan, Site Unit 1 6/15/2018 Feasibility Study
Draft Work Plan for Monitoring Methane in Soil Gas, Site Unit 1 Cover Letter 6/15/2018 Feasibility Study
Capitol Industries Plant 4 Interim Action Field Implementation Work Plan, Site Unit 2, approval letter 5/24/2018 Feasibility Study
Draft Capital Industries Plant 4 Interim Action Field Implementation Work Plan, Revised 5/10/2018 Feasibility Study
CVOC Pilot Study Field Implementation Work Plan, Site Unit 1, comment letter 4/30/2018 Feasibility Study
CVOC Pilot Study Field Implementation Work Plan, Site Unit 1, Draft 4/4/2018 Feasibility Study
Capitol Industries Plant 4 Interim Action Field Implementation Work Plan, Site Unit 2, comment letter 4/3/2018 Feasibility Study
Draft Capital Industries Plant 4 Interim Action Field Implementation Work Plan, Site Unit 2 3/8/2018 Feasibility Study
Capitol Industries Plant 4 Interim Action Work Plan, Site Unit 2, approval letter 1/12/2018 Feasibility Study
In Situ Metals Immobilization Pilot Study Work Plan, Site Unit 1, approval letter 1/11/2018 Feasibility Study
CVOC PIlot Study Work Plan, Site Unit 1, approval letter 1/11/2018 Feasibility Study
2017 SU2 Interim Action Work Plan Revised 12/22/2017 Feasibility Study
2017 SU1 Metals Pilot Test Work Plan Final 12/21/2017 Feasibility Study
2017 SU1 Downgradient CVOC Pilot Test Work Plan FINAL 12/21/2017 Feasibility Study
Site Unit 2: Capital Industries Plant 4 Interim Action Approval Letter 11/22/2017 Feasibility Study
Site Unit 1, In Situ Metals Immobilization Pilot Testing Work Plan 11/22/2017 Feasibility Study
Site Unit 1, CVOC Pilot Study work Plan 11/22/2017 Feasibility Study
East of 4th Avenue Cleanup Implementation Report 11/1/2017 Site Specific Technical Document - other
Capital Industries Plant 4 Interim Action Work Plan Unit 2 7/27/2017 Feasibility Study
CVOC PILOT STUDY WORK PLAN, Site Unit 1 6/14/2017 Feasibility Study
Draft IN SITU METALS IMMOBILIZATION -PILOT TESTING WORK PLAN 4/17/2017 Feasibility Study
Cover Letter: Draft In Situ Metals Immobilization Pilot Testing, Site Unit 1 4/17/2017 Feasibility Study
ISB Year 1 Optimization, Technical Memo 3/1/2017 Site Specific Technical Document - other
ISB and ISCO Phase II Revised Pilot Study Work Plan, Technical Memo 1/19/2017 Site Specific Technical Document - other
EcologyLetterPSCDioxanePilotStudyWorkPlan 12/6/2016 Site Specific Technical Document - other
Technical Memorandum ISB Phase I and ISCO Phase II Results and Work Plan 11/17/2016 Site Specific Technical Document - other
Letter: Revised Feasibility Study Report, Site Units 1 and 2 10/25/2016 Site Specific Administrative Document - other (Administrative correspondence)
FEASIBILITY STUDY Site Unit 2 Appendix A 8/11/2016 Feasibility Study
Feasibility Study Site Unit 2 8/11/2016 Feasibility Study
FEASIBILITY STUDY Site Unit 1 8/11/2016 Feasibility Study
Site Unite 1 FS Report APPENDIX A 8/11/2016 Feasibility Study
West of 4th FS Extension Letter 10/30/2015 Feasibility Study
Burlington Environmental LLC Georgetown - Site Hazard Assessment (Revised after Stericycle comments) 9/28/2015 Site Hazard Assessment Report
Burlington Environmental LLC Georgetown - SHA Rank Letter 8/10/2015 Site Specific Administrative Document - other (Administrative correspondence)
Burlington Environmental LLC Georgetown - SHA Notification Letter 7/29/2015 Site Specific Administrative Document - other (Administrative correspondence)
Draft Periodic Review | Burlington Environmental | (“PSC-Georgetown”) | Ecology/EPA Facility Permit# WAD 00081 2909 5/27/2015 Periodic Review (5 Year)
Appendix 6.8: Photo Log 5/1/2015 Periodic Review (5 Year)
(Draft) Microcosm Assessment of Aerobic Intrinsic Bioremediation and Mineralization Potential for three 1,4 Dioxane-Impacted Sites 4/27/2015 Site Specific Technical Document - other
Letter - Response to Comments: 1,4-Dioxane Remediation Approach Focused Feasibility Study Response to Comments 3/16/2015 Feasibility Study
Memo: Five-Year Review Assessment of the Vapor Intrusion Mitigation System 2/27/2015 Periodic Review (5 Year)
Letter: 1,4 Dioxane Remediation Approach Focused Feasibility Study memorandum PSC-Georgetown Facility Ecology/EPA # WAD 00081 2909 2/13/2015 Feasibility Study
1,4-Dioxane Remediation Approach Focused Feasibility Study 1/31/2015 Feasibility Study
Potability Determination: Five-year review 12/31/2014 Periodic Review (5 Year)
Five-Year Review Assessment of the Effectiveness of Institutional and Other Controls as Part of Cleanup 12/31/2014 Periodic Review (5 Year)
Figures: 3rd Quarter, 2014 12/4/2014 Periodic Review (5 Year)
1,4-Dioxane Remediation Approach Technical Memorandum | PSC Georgetown Facility | Seattle, Washington 9/30/2014 Site Specific Technical Document - other
Letter: 1,4-dioxane in site groundwater; dispute resolution PSC-Georgetown Facility Ecology/EPA # WAD 00081 2909 6/19/2014 Site Specific Administrative Document - other (Administrative correspondence)
Letter: PSC-Georgetown facility - WAD 00081 2909 Class III Permit Modification and Final Permit 4/27/2014 Site Specific Administrative Document - other (Administrative correspondence)
Letter: RE: Agreed Order and Dangerous Waste Management Permit for Corrective Action PSC-Georgetown Facility - Ecology/EPA ID#: WAD 00081 2909 5/28/2010 Site Specific Administrative Document - other (Administrative correspondence)
Final Cleanup Action Plan | PSC Georgetown Facility | Seattle, Washington 4/28/2010 Cleanup Action Plan
Site Wide Feasibility Study Submittal Letter 1/22/2008 Feasibility Study
Site Wide Feasibility Study-TM5: Remedial Alternatives Development and Evaluation 4/12/2007 Feasibility Study
Site Wide Feasibility Study-TM4: Technology Identification and Screening 1/10/2007 Feasibility Study
Site Wide Feasibility Study-TM2: Remediation Areas 6/30/2006 Feasibility Study
Site Wide Feasibility Study-TM1: Modeling, Cleanup Level, COCs, Remediation Levels, Conditional Points of Compliance, Schedule 6/23/2006 Feasibility Study
Site Wide Feasibility Study-TM3: Vapor Intrusion Assessment and Mitigation 5/26/2006 Feasibility Study
Draft Site Wide Feasibility Study Report 9/5/2005 Feasibility Study
Final Comprehensive Remedial Investigation Report - Vol 7 (8) 11/14/2003 Remedial Investigation Report
Final Comprehensive Remedial Investigation Report - Vol 6 (7) 11/14/2003 Remedial Investigation Report
Final Comprehensive Remedial Investigation Report - Vol 5 (6) 11/14/2003 Remedial Investigation Report
Final Comprehensive Remedial Investigation Report - Vol 4b (5) 11/14/2003 Remedial Investigation Report
Final Comprehensive Remedial Investigation Report - Vol 4a (4) 11/14/2003 Remedial Investigation Report
Final Comprehensive Remedial Investigation Report - Vol 3b (3) 11/14/2003 Remedial Investigation Report
Final Comprehensive Remedial Investigation Report - Vol 3a (2) 11/14/2003 Remedial Investigation Report
Final Comprehensive Remedial Investigation Report - Vol 1 and 2 (1) 11/14/2003 Remedial Investigation Report
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

  • South Park Branch / Seattle Public Library
    8604 Eighth Avenue South
    Seattle, 98108
    This location may only have print documents available during open comment periods.

Contaminants 15

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Other Contaminant - Base/Neutral/Acid Organics C S B
Halogenated Organics - Halogenated Organics C C C
Metals - Metals Priority Pollutants C C B
Halogenated Organics - Polychlorinated biPhenyls (PCB) C C B
Non-Halogenated Organics - Petroleum Products-Unspecified S C S
Non-Halogenated Organics - Phenolic Compounds C C B
Non-Halogenated Organics - Non-Halogenated Solvents S S C
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons C C B
Reactive Wastes - Corrosive Wastes B B B
Other Contaminant - Radioactive Wastes B B B
Other Contaminant - Asbestos B B B
Metals - Arsenic C S
Non-Halogenated Organics - Methyl tertiary-butyl ether B B B
Reactive Wastes - Other Reactive Wastes B B B
Pesticides - Pesticides-Unspecified B B B
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.