Northwest Pipeline GP Mt Vernon C/S

15498 Lange Rd Mount Vernon, Skagit County
Facility Site ID: 2684
Cleanup Site ID: 4766

  • Site Status

  • Cleanup Started

More about cleanup

This site has confirmed or suspected contamination that could potentially harm people and the environment. It is in the state cleanup process under the Model Toxics Control Act.

See the Site Details report at left or the documents below to learn more about this site.

Ecology works to clean up contaminated properties throughout the state. Cleanups are construction projects that remove, treat, or contain potentially harmful substances.

Voluntary Cleanup Program

This site is in our Voluntary Cleanup Program, which provides technical help to owners of contaminated sites.

Voluntary Cleanup Program customers pay fees to cover our costs for technical help and reviewing cleanup reports. Sites in this program must meet the same cleanup standards as sites Ecology manages under legal orders.

Places to see print documents
Technical Reports 11
Document Title Document Date Document Type
Northwest Pipeline Mt Vernon - NW3449 - Preliminary Cleanup Levels 8/1/2025 Site Specific Technical Document - Other
NWPL Mt Vernon C/S - Chromium Assessment Report 1 of 4 9/5/2018 Site Specific Technical Document - Other
NWPL Mt Vernon C/S - Chromium Assessment Report 2 of 4 9/5/2018 Site Specific Technical Document - Other
NWPL Mt Vernon C/S - Chromium Assessment Report 3 of 4 9/5/2018 Site Specific Technical Document - Other
NWPL Mt Vernon C/S - Chromium Assessment Report 4 of 4 9/5/2018 Site Specific Administrative Document - Other (Administrative Correspondence)
Northwest Pipeline GP Mt Vernon C/S NW2008 Interim Remedial Action Report 1/5/2017 Interim Action Plans and Reports
Northwest Pipeline GP Mt Vernon C/S—NW2008 Status Letter 5-12-16 5/12/2016 Site Specific Administrative Document - Other (Administrative Correspondence)
Northwest Pipeline - Terrestrial Ecological Evaluation (TEE) Memo 3/26/2012 Terrestrial Ecological Evaluation
Northwest Pipeline - Terrestrial Ecological Evaluation (TEE) Summary Report 11/1/2011 Terrestrial Ecological Evaluation
Northwest Pipeline Terrestrial Ecological Evaluation Compressor Station Facilities 8/16/2011 Terrestrial Ecological Evaluation
Northwest Pipeline GP Mt Vernon C/S Site Hazard Assessment Report 8/1/2000 Site Hazard Assessment Report
Voluntary Cleanup Program 6
Document Title Document Date Document Type
Northwest Pipeline GP Mount Vernon C/S - NW3449 - VCP Acceptance Package 10/14/2025 VCP Administrative Document
Northwest Pipeline GP Mount Vernon—NW2008Termination by customer 4/20/2021 VCP Administrative Document
NWPL Mt Vernon C/S - VCP Further Action Opinion Letter 10/7/2019 Voluntary Cleanup Program Opinion – Other
NW2008 11-05-2013 Opinion Approve Feasibility Study 11/5/2013 Voluntary Cleanup Program Opinion – Other
Northwest Pipeline GP Mt Vernon C/S NW2008 Opinion Letter 2/11/2013 Voluntary Cleanup Program Opinion – Other
NW1528 NWPL Mt Vernon CS VCP Partial Sufficiency and Further Action Opinion Letter 4/3/2006 Voluntary Cleanup Program Opinion – 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 3

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Metals - Metals Priority Pollutants C S S
Non-Halogenated Organics - Petroleum Products-Unspecified C S C
Other Contaminant - Conventional Contaminants, Inorganic C S
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.