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Comment Period

Pacific Wood Treating

Union Pacific Railroad Company De Minimis Consent Decree

June 8, 2020 - July 7, 2020, 11:59 p.m.

We are entering into a De Minimis Consent Decree with the Union Pacific Railroad Company (Union Pacific). We invite you to submit comments and questions about this legal agreement.

The De Minimis Consent Decree requires Union Pacific to pay for a portion of cleanup costs at the Pacific Wood Treating (PWT) site. It reflects the relatively small amount of contamination contributed by Union Pacific. 

The Union Pacific fact sheet provides a brief summary about the De Minimis Consent Decree and the history of operations on the Pacific Wood Treating (PWT) site.

PWT pressure treated lumber wood lumber wood products and poles from 1964 to 1993. The plant operated in the general area of 111 West Division Street in Ridgefield. Their operations and waste disposal methods released hazardous substances that contaminated soil, groundwater, storm water, and sediments. PWT leased about two acres of land from Union Pacific. The amount and toxicity of hazardous substances from PWT operations on the former Union Pacific property were insignificant compared to the hazardous substances released elsewhere at the PWT site. 

The port has been cleaning up the site since 1996 with the oversight and funding from Ecology. While cleanup is mostly completed, there is still some ongoing work in the off-port property residential area. After the De Minimis Consent Decree is finalized,  Union Pacific’s settlement will go towards the remaining cost for cleanup of the site.

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Comment by mail

Rebecca Lawson, PE, LHG
Washington Department of Ecology
PO Box 47775
Olympia, WA 98504
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Rebecca Lawson
Cleanup Project Manager
(360) 407-6241

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