Facility Site ID: 48336 Cleanup Site ID: 14787

Initial Investigation

When Ecology receives information that a property may pose a threat to human health or the environment, an Initial Investigation is conducted. This information may come to Ecology from the owner of the property making a required notification, or may come in the form of a complaint, through the Environmental Report Tracking System. The goal of this investigation is to determine if there was a release that requires further action.
 
During the course of an Initial Investigation, Ecology oversees an environmental review of the conditions at the property and any available data. The Model Toxics Control Act (MTCA) mandates that Ecology track any site that is suspected or confirmed to be contaminated with hazardous materials.

Ecology’s Confirmed And Suspected Contaminated Sites List

This site has gone through the Initial Investigation process and has been listed on the Confirmed and Suspected Contaminated Sites List. Cleanup actions may be conducted independently or through the Pollution Liability Insurance Agency’s (PLIA’s) Heating Oil Technical Assistance Program (HOTAP). Through HOTAP, PLIA can provide technical advice and assistance, including a written opinion on whether or not your independent remedial action meets the substantive requirements of the Model Toxics Control Act (MTCA). PLIA has been providing this type of assistance to owners and operators of heating oil tanks since 1997. For more information on PLIA and HOTAP, please visit their website at www.plia.wa.gov or contact them directly at pliamail@plia.wa.gov or 1-800-822-3905.
Legal 2
Document Title Document Date Document Type
Stewart House - Early Notice Letter (2nd attempt) 11/29/2018 Early Notice Letter
Stewart House - Early Notice Letter (Returned Undelivered) 10/31/2018 Early Notice Letter
Technical Reports 1
Document Title Document Date Document Type
Stewart House - Initial Investigation Field Report 9/24/2018 Initial 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

  • 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 - Petroleum-Diesel 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.