A New York trial court held that the state environmental agency's general permit for stormwater discharges from municipal separate storm sewer systems (MS4) violates the CWA and state law. By allowing discharges based on an applicant's notice of intent (NOI) to discharge, the permitting scheme c...

A California appellate court upheld a lower court decision dismissing a petition to compel the state's parks and recreation department to ban off-highway vehicle recreation on certain leased portions of the Oceano Dunes State Vehicular Recreational Area. It is too late to review the 1982 coastal...

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A California appellate court affirmed a lower court decision dismissing a petition challenging an air district's abatement order directing the owners of an open-pit mining operation to cease operation of the central plant equipment and all internal combustion engines with a rating greater than 5...

New York's highest court upheld regulations promulgated by the state's environmental agency that require inactive hazardous waste disposal sites to be restored to pre-disposal conditions. A coalition of commercial property owners argued that the regulations are ultra vires and impermissibly allow th...

A California appellate court held that a state agency's certification of an environmental impact report (EIR) and approval of a master plan for the expansion of a state university violated the California Environmental Quality Act (CEQA). In certifying the EIR and approving the project, the agenc...

A district court held that Washington state must establish reasonably available control technology (RACT) for greenhouse gas emissions. Based on its plain language, the RACT provision contained in Washington's federally approved SIP is not discretionary and requires the state's agencies to estab...

A California court held that the California Air Resources Board's "functional equivalent document" and scoping plan to reduce greenhouse gases as it relates to cap and trade complies with the California Environmental Quality Act. The court therefore lifted its May 20, 2011, peremptory writ of man...

A California appellate court reversed and remanded a lower court decision invalidating a settlement agreement between the state and three water and irrigation agencies concerning the intra-state right to water from the Colorado River. In addition to allocating water rights within the state, the sett...

A district court held that the state of Washington is not liable as an arranger under CERCLA for hazardous waste contamination stemming from mining operations on state lands. The state entered into mining contracts with a Canadian mining company that allowed the company to excavate and remove metal-...