As of March 2011, the West County Road 112 Ground Water site was added to the National Priorities List (NPL) also known as the Superfund List by the U.S. Environmental Protection Agency (EPA).[1] From 2011 to 2013, TCEQ installed groundwater monitors and conducted groundwater sampling. In 2013, TCEQ began sampling residential soil and confirmed that it was contaminated from use of the contaminated groundwater for garden and lawn care.