FWS designated approximately 13 miles of stream in the Turkey Creek Watershed in Jefferson County, Alabama, as critical habitat for the vermilion darter under the ESA.

EPA finalized minimum requirements under the SDWA for underground injection of carbon dioxide for the purpose of geologic sequestration.

EPA established criteria for nitrogen/phosphorus pollution in the lakes, flowing waters, and springs of Florida.

FWS announced a 12-month finding on a petition to list Hamilton milkvetch, Flowers penstemon, Frisco buckwheat, Ostler's peppergrass, and Frisco clover as threatened or endangered under the ESA; the agency found that listing Hamilton milkvetch and Flowers penstemon is not warranted and that listing Frisco buckwheat, Ostler's peppergrass, and Frisco clover is warranted but precluded by higher priority actions.

FWS determined threatened status for the New Zealand/Australia distinct population segment of the southern rockhopper penguin under the ESA.

FWS designated approximately 98,366 acres in Los Angeles, Orange, Riverside, San Bernardino, San Diego, Santa Barbara, and Ventura counties in California as critical habitat for the arroyo toad under the ESA.

FWS designated approximately 2,947 acres in Los Angeles, Orange, Riverside, San Bernardino, and San Diego counties in California as critical habitat for thread-leaved brodiaea under the ESA.

FWS will reintroduce whooping cranes as a nonessential experimental population into historic habitat in southwestern Louisiana to establish a nonmigratory flock.

United States v. Mahard Egg Farm, Inc., No. 3:11-cv-01031-N (N.D. Tex. May 18, 2011). Settling CWA defendants responsible for violations of a concentrated animal feeding operation general permit and related laws and regulations at seven of its facilities in Texas must pay a civil penalty, must take steps to bring each of its facilities into compliance, and must restore the lands to prevent future discharges to area waterways.

In re Caribbean Petroleum Corp., No. 10-12553 (KG) (Bankr. D. Del. May 20, 2011). Settling CERCLA, CWA, Oil Pollution Act, and RCRA defendants responsible for violations at a petroleum distribution terminal in Bayamón, Puerto Rico, must provide the United States with general unsecured claims totaling $18,725,130 and must pay $8,200,000 in U.S. response costs and penalties.