What is TCE? en español
Trichloroethene (TCE), also known as Trichloroethylene, is a nonflammable, colorless liquid used as an industrial degreaser. It is also found in common household products, such as paints, glues, spot removers, and pepper spray. TCE is a volatile organic compound (VOC). This means it evaporates easily into the air. In water, it slowly breaks down into other VOCs, such as vinyl chloride.
Routes of Exposure
If TCE gets into groundwater, it dissolves and then moves with the natural flow of the water. TCE is heavier than water, so it tends to move downward as well as horizontally with groundwater flow. If groundwater is suspected to be contaminated with TCE, Ecology will investigate the source and extent of contamination. Ecology has groundwater cleanup standards for TCE.
The area near the Boeing Fabrication Auburn site has a high groundwater table. This means contaminated groundwater is fairly close to the surface of the ground in some locations. When groundwater levels are higher than the surrounding land, it can discharge into nearby ditches, ponds, or yards in low-lying areas. This type of water is called surface water.
People and animals could potentially be exposed to TCE by breathing, swallowing, or touching contaminated water in ditches and ponds.
How TCE will affect someone is hard to determine, especially without knowing exactly how much that person was exposed to, for how long, or how often.
Ecology works closely with communities at cleanup sites to monitor the levels of harmful chemicals and prevent health and safety risks. If TCE or other contamination is discovered at a cleanup site, we will work with the affected neighborhoods, cities, and businesses to find solutions.
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