Public Health Assessment for Garvey Elevator Site, Hastings, Adams County, Nebraska. EPA Facility ID: NEN000704351, January 12, 2016.

摘要

The Garvey elevator site is a grain storage facility that has operated on a 106?acre property southwest of the city limits of Hastings, Nebraska since 1959. Past practices at the site included the use of pesticides and other toxic materials. Carbon tetrachloride (CCl4) from a leaky pipe beneath the site has contaminated local groundwater. Records do not provide a date as to when the leakage occurred nor the amount of the contaminant released. Use of CCl4 at the facility ceased in 1985. Trace amounts of CCl4 began showing up in the municipal water supply in the 1990s. Sampling in 1994 revealed a contaminated onsite supply well that was used as a drinking water source for workers. Subsequent offsite testing found also that area private wells were impacted. The plume has been spreading in an east?southeastern direction. The plume consists mainly of CCl4 but degradation products, such as chloroform, are sometimes present.