Facility Site ID: 97326
Cleanup Site ID: 15496

  • Site Status

  • Awaiting Cleanup
  • Process Type

  • Independent

INITIAL INVESTIGATION

When Ecology learns about a release of a hazardous substance into the environment, we do an Initial Investigation. Release information may come to us through the Environmental Report Tracking System, either from the property owner making a required notification or as a complaint from someone who saw the release.

During the Initial Investigation, we evaluate environmental conditions at the property and review all available data. The goal of the Investigation is to determine if the release may pose a threat to human health or the environment, and if further cleanup actions are needed.  We track any site that is suspected or confirmed to be contaminated with hazardous materials, as required by the Model Toxics Control Act (MTCA).

FURTHER ACTION REQUIRED

Ecology has conducted an Initial Investigation and determined that remedial action is needed at this site. Cleanup actions may be conducted independently - without Ecology involvement - or through Ecology's Voluntary Cleanup Program (VCP). A No Further Action determination may be reached with oversight by an Ecology site manager through the VCP.

Legal 1
Document Title Document Date Document Type
Waterway 20 Upland - Early Notice Letter 12/21/2021 Early Notice Letter
Technical Reports 5
Document Title Document Date Document Type
Waterway #20 Supplemental Phase II Environmental Site Assessment 5/22/2024 Site Specific Technical Document - Other
Waterway #20 Supplemental Phase II ESA Lab reports 5/22/2024 Site Specific Technical Document - Other
Waterway20 Phase II Assessment Site Characteristics 5/18/2023 Site Specific Technical Document - Other
Waterway 20 Upland - Initial Investigation Field Report 11/19/2021 State Initial Investigation Report
Waterway 20 Upland - Soil Sampling Technical Memorandum 6/30/2016 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.

Contaminants 1

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons 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.