Please provide and identify what environmental laws were violated in this case?

The 11-acre C & R Battery Company site is located near the James River in Chesterfield County, Virginia. Between the early 1970s and 1985, C&R Battery Co., Inc. used the site to dismantle batteries from cars, trucks, and commercial applications in order to recover lead and lead oxide. The process involved cutting open batteries and draining acid into on-site ponds. These practices contaminated soil, sediment, and surface water with lead and other hazardous chemicals. EPA added the site to the Superfund program's National Priorities List (NPL) in July 1987.

EPA oversaw the PRP's cleanup of the site contamination. Site cleanup activities included excavation of lead-contaminated soil and sediment, solidification and stabilization of the contaminated soil and sediment; disposal of the stabilized material in a nearby solid waste landfill; site grading; placement of clean topsoil over the entire site and replanting of the site. Soil and sediment cleanup activities took place between 1992 and 1993; there are no releases from the site to groundwater or nearby surface water.