Superfund Record of Decision (EPA Region 7): Hastings Ground Water Contamination(East Industrial Park), NE (First Remedial Action), September 1990

摘要

The Hastings Ground Water Contamination site is a contaminated aquifer in andnear the city of Hastings, Adams County, Nebraska. The site consists of seven source areas, or subsites, contaminated with industrial chemicals. The Record of Decision (ROD) addresses contaminated surface soil (1-10 feet) on approximately 14 acres of the 2,600-acre Hastings East Industrial Park subsite. The subsite is on a portion of the former Hastings Naval Ammunition Depot (NAD). Investigations have detected three major types of contaminants in onsite soil, including explosives such as trinitrotoluene (TNT), carcinogenic and noncarcinogenic polynuclear aromatic hydrocarbons (PAHs) and metals. The remedy is designed to control the migration of contaminants from surface soil to the underlying aquifer. The primary contaminants of concern affecting the soil are organics including PAHs; metals including arsenic, chromium, and lead; and TNT.