EPA Region 10 reproposed effluent limits for mercury, copper, total aromatic hydrocarbons, total aqueous hydrocarbons, silver, and whole effluent toxicity under the NPDES general permit for oil and gas exploration, development, and production facilities in Cook Inlet, Alaska.

The U.S. Army Corps of Engineers proposed to authorize Natural Resources Conservation Service-approved categorical exclusions for recurring conservation, restoration, and survey-related activities in waters of the United States.

EPA and the U.S. Army Corps of Engineers seek public comment on proposed guidance to identify waters protected by the FWPCA consistent with the U.S. Supreme Court's SWANNC and Rapanos decisions.

EPA entered into a settlement under CERCLA concerning the East Calloway County Middle School Mercury Spill site in Murray, Kentucky, that requires payment of past U.S. response costs incurred at the site.

EPA entered into a proposed administrative settlement under CERCLA that requires the settling party to pay $208,990 in U.S. response costs incurred at the Big River Mine Tailings Superfund site in St. Francois County, Missouri.

EPA entered into two proposed administrative settlements under CERCLA and RCRA that require the settling party to perform certain cleanup actions at the Caribbean Petroleum Refining, LP facility in Bayamon, Puerto Rico, and to assume responsibility for the UST systems and required cleanup work at 147 gasoline service stations.

FWS announced a 12-month finding on a petition to list the Puerto Rican harlequin butterfly as endangered and to designate critical habitat under the ESA; the agency found that listing is warranted but precluded by higher priority actions.

FWS announced a 90-day finding on a petition to list the spot-tailed earless lizard as endangered or threatened under the ESA and to designate critical habitat; the agency found that listing may be warranted and initiated a status review.

NOAA-Fisheries proposed to designate the Middle Columbia River steelhead as a nonessential experimental population under the ESA.

NOAA-Fisheries proposed to designate the Middle Columbia River steelhead as a nonessential experimental population under the ESA.