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Louisiana-Pacific Corp. v. ASARCO, Inc.

The court holds that slag waste is subject to the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) if the slag is covered by any subsection of CERCLA §101(14)'s definition of "hazardous substance," notwithstanding §101(14)(C)'s incorporation of the Resource Conservati...

Louisiana-Pacific Corp. v. Beazer Materials & Servs., Inc.

The court rules that private investigative costs, not approved by the U.S. Environmental Protection Agency (EPA) and incurred after EPA announced its own investigation, are not recoverable in a private cost recovery action under the Comprehensive Environmental Response, Compensation, and Liability A...

Lykes Bros. v. Corps of Eng'rs

The court vacates a U.S. Army Corps of Engineers' (Corps') determination that Fisheating Creek in southern Florida is a navigable waterway of the United States. Relying on historical records, military activities, official government surveys, the Corps' investigations, aerial photographs, Corps and C...

MacDonald v. Monsanto Co.

The court holds that the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) does not preempt a state common-law claim for failure to warn adequately of the potential danger of exposure to an herbicide even though the herbicide was packaged with labels approved by the U.S. Environmental Prot...

Madera Irrigation Dist. v. Hancock

The court holds that a water district's Fifth Amendment vested property right to a permanent supply of water was not violated by the federal government's renewal contract imposing a surcharge to recoup operational costs and requiring an environmental impact statement (EIS) under the National Environ...

Madison Gas & Elec. Co. v. EPA

The court holds that it has jurisdiction under §307(b)(1) of the Clean Air Act (CAA) to review a challenge to the U.S. Environmental Protection Agency's (EPA's) acid rain regulations that allocate sulphur dioxide emissions allowances to three electrical generating plants in Wisconsin. Under §307(b...

Maine v. Department of the Navy

The court holds that the United States did not waive its sovereign immunity in either the Resource Conservation and Recovery Act (RCRA) or the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) from civil, punitive penalties, or from fees imposed under Maine law against t...

Marriott Corp. v. Simkins Indus., Inc.

The court holds that a landowner stated a private cost recovery claim under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) by alleging investigatory and monitoring costs as response costs in its complaint against a former landowner, but it did not prove a prima fa...

Martin v. American Cyanamid Co.

The court holds that the Secretary of Labor may interpret the hazard communication standard to require that shipping labels on hazardous chemical containers include known "target organ effects," as specific known symptoms and signs of exposure to the chemicals. The court grants the Secretary's petit...

Mattoon v. Pittsfield, City of

The court holds that 68 residents of Berkshire County, Massachusetts, who allegedly contracted giardiasis from contaminated drinking water supplied by the city of Pittsfield in 1985, may not proceed in a Safe Drinking Water Act (SDWA) citizen suit seeking equitable relief and civil penalties. The co...