Stringfellow Acid Pits

Stringfellow Acid Pits
Name	Stringfellow Acid Pits
Location	Glen Avon, California, United States
Coordinates	33.9183°N 117.4933°W
Type	Hazardous waste disposal site
Contaminants	Industrial solvents, organic acids, heavy metals
Initial use	Waste disposal for organic solvent manufacturing
Listed	National Priorities List (Superfund)
Responsible party	Various corporations, later managed by California Department of Toxic Substances Control

Stringfellow Acid Pits The Stringfellow Acid Pits were a hazardous waste disposal facility in Glen Avon, California, that became one of the earliest and most notorious Superfund sites in the United States. The site drew attention from federal agencies including the Environmental Protection Agency and state entities such as the California Environmental Protection Agency, leading to landmark litigation involving corporations, municipalities, and agencies including the United States Department of Justice.

History

From the 1940s through the 1970s the site was used by industrial firms producing solvents and reagents connected to companies like Shell Oil Company, E. I. du Pont de Nemours and Company, and other chemical manufacturers that supplied the Aerospace industry and pharmaceutical producers. Operators including private proprietors and contractors disposed of wastes in unlined evaporation ponds near the Santa Ana River and the San Bernardino County floodplain. Growing concerns from local elected officials such as representatives linked to Riverside County and advocacy by environmentalists associated with groups comparable to Sierra Club and individuals similar to John Muir analogues prompted state investigations by the California Regional Water Quality Control Board and federal inquiries culminating in a listing on the National Priorities List maintained by the United States Environmental Protection Agency.

Site Description and Contamination

Located in proximity to transport corridors including the Interstate 10 corridor and municipal boundaries shared with the cities of Riverside, California, Perris, California, and Corona, California, the disposal area comprised a series of unlined pits and evaporation ponds excavated into alluvial deposits. Chemical analyses by agencies akin to United States Geological Survey and laboratories used methods from organizations like the American Chemical Society to document contaminants such as trichloroethylene, perchloroethylene, benzene, toluene, heavy metals, and acidic wastes from solvent production used by firms comparable to Allied Chemical and Union Carbide Corporation. Subsurface migration pathways involved shallow groundwater aquifers mapped against regional hydrogeology studied by institutions like University of California, Riverside and monitored by state entities including the California Department of Toxic Substances Control.

Health and Environmental Impact

Exposure pathways identified by public health bodies including the Centers for Disease Control and Prevention and county public health departments implicated drinking water wells, surface water runoff into the Santa Ana River watershed, and airborne volatilization near populated neighborhoods. Epidemiological concerns referenced by researchers associated with University of California, Los Angeles and Harvard School of Public Health centered on increased risks linked to volatile organic compounds and carcinogenic constituents recognized by agencies such as the International Agency for Research on Cancer. Ecological effects were assessed by biologists from organizations like the California Department of Fish and Wildlife and conservationists aligned with The Nature Conservancy, documenting impacts on riparian habitats and biotic communities native to Southern California.

Cleanup and Remediation Efforts

Remediation efforts involved federal programs under the Comprehensive Environmental Response, Compensation, and Liability Act and state-level actions by the California Department of Toxic Substances Control, with engineering designs influenced by practices promulgated by the United States Army Corps of Engineers and consultants from firms akin to Bechtel and CH2M Hill. Remedial technologies applied included groundwater extraction and treatment systems, pump-and-treat operations, impermeable caps, slurry walls, and long-term monitoring frameworks similar to those recommended by the National Research Council. Funding mechanisms drew on settlements negotiated with corporations represented by law firms and administrative enforcement by the United States Department of Justice.

Legal and Regulatory Actions

The site generated prolific litigation featuring cases before federal courts and enforcement actions invoking statutes overseen by the United States Environmental Protection Agency and litigated by the United States Department of Justice. Plaintiffs included affected residents and local governments represented in suits echoing precedent from litigation involving Love Canal and other major hazardous sites. Regulatory responses entailed placement on the National Priorities List, administrative orders under CERCLA, and consent decrees that mandated remedial design, operation, and cost recovery with oversight by state prosecutors and civil litigators.

Community Response and Legacy

Local civic groups, coalitions of residents, and public-interest attorneys organized campaigns similar to efforts led by activists associated with organizations like Earthjustice and Natural Resources Defense Council to demand cleanup, health monitoring, and compensation. Public hearings convened with participation from officials akin to members of the Riverside County Board of Supervisors and state legislators resulted in policy changes influencing hazardous waste siting laws and prompting improvements to regional emergency response coordinated with entities like the Federal Emergency Management Agency. The site's legacy persists in environmental law curricula at institutions such as Stanford Law School and in policy studies by think tanks comparable to the Resources for the Future, serving as a case study in industrial waste management, regulatory enforcement, and community advocacy.

Category:Superfund sites in California Category:Environmental disasters in California Category:Pollution in the United States