Laurel Station

Last Updated, September 2018

Compliance monitoring is ongoing. Additional cleanup will be performed if necessary.
 
Petroleum-contaminated soil occurred in three localized areas (see also map below):
1.    Pump Station Area
2.    Tank 180
3.    Material Storage Area
 
Remedial actions completed in July 2015 (cleanup system operations ongoing):
 
Pump Station Area:

• Direct removal and disposal:  Excavated accessible soil and sent for off-site disposal.
• Subsurface process:  Where inaccessible by direct excavation, contaminated soil and groundwater are cleaned up below ground with a dual-phase extraction (DPE) process.  This consists of a series of dedicated wells that remove both liquid and vapor phase contamination.  DPE began in July 2015 and has operated continuously since.
• Site Use Controls: Less highly contaminated soil that is contained by pavement or buildings will be left in place with legal site use controls dictating it to be cleaned up when structures are decommissioned or maintenance exposes contaminated soil, at which time it will be excavated and sent for off-site disposal. 

 Tank 180 Area:

• Site Use Controls: Contaminated soil beneath Tank 180 will remain contained with legal site use controls dictating it to be cleaned up when the structure is decommissioned or maintenance exposes contaminated soil, at which time it will be excavated and sent for off-site disposal.

 Material Storage Area:

• Direct Removal and disposal:  Excavated soil and sent for off-site disposal.

The Model Toxics Control Act (MTCA; Chapter 70.105D RCW 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 (see graphic below) over a variable timeline.

• June 2014:  Remedial Investigation/Feasibility Study (RI/FS) Report completed and Cleanup Action Plan (CAP) included in legal agreement (Consent Decree)
• September 2014:  Cleanup design completed.
• January 2015:  Compliance Monitoring Plan completed.
• July 2015:  Remedial cleanup actions were completed.  Subsurface dual-phase extraction (DPE) process begins operation.
• Ongoing:  Subsurface removal system continues contaminant extraction.  Periodic monitoring is conducted to assess effectiveness of the cleanup.  Additional cleanup will be performed if necessary.

Current Laurel Station cleanup site Public Participation Plan

This plan includes information for the public regarding opportunities to get involved in the Site cleanup process. The outreach activities and mechanisms presented reflect Ecology’s current plans for keeping the public informed and for receiving information and comments from the public. 

Site History
Laurel Station was constructed in 1956, and is used to transport crude oil via pipeline from Edmonton, Alberta, Canada, to refineries at Ferndale and Anacortes, Washington.  The facility currently consists of 20-inch and 16-inch pipelines, a pump station, associated storage tanks, and support buildings.

Contamination
Petroleum contamination at the Site resulted from historic release of crude oil and natural gas condensate between 1971 and 2000.  Most of the releases had been cleaned up before the remedial action have already been cleaned up.  This cleanup addresses the areas that remain impacted by historic releases.

• Fact Sheet (RI/FS; draft CAP; SEPA determination) – April 2014
• Compliance Monitoring Plan – January 2015
• Progress Report – May 2018