United States v. Trident Seafoods Corp., No. 11-1616 (W.D. Wash. Apr. 26, 2012). A settling CWA defendant responsible for violations at its seafood processing facilities must pay a $2.5 million civil penalty and must perform specified injunctive measures to reduce processing wastes and sea floor waste piles.

United States v. E.I. du Pont de Nemours & Co., No. 6:12-cv-01146-EFM-KMH (D. Kan. Apr. 19, 2012). A settling CWA defendant responsible for natural resource damages must pay $252,739 in natural resource damages and reimbursement of assessment costs.

EPA issued its list of unregulated chemical contaminants and viruses and the methods to be used to monitor them in public water systems.

United States v. City of Memphis, No. 2:10-CV-02083-SHM-dkv (W.D. Tenn. Apr. 16, 2012). A settling CWA defendant responsible for violations concerning its sewer system must pay a $1.29 million civil penalty to the United States and Tennessee and must develop and implement a number of sewer management, operation, and maintenance programs to rehabilitate its system, including an effluent study and a sewer GPS mapping project.

EPA proposed to approve revisions to Kentucky's public water system supervision program. 

EPA approved Maine's NPDES program to include the permitting of all discharges within the Indian territories of the Penobscot Nation and the Passamaquoddy Tribe. 

EPA Region 6 announced the availability of 32 TMDLs for waters listed in Louisiana under CWA §303(d).

EPA proposed to designate two new ocean dredged material disposal sites offshore of Yaquina Bay, Oregon, pursuant to the Marine Protection, Research, and Sanctuaries Act.

EPA proposed to withdraw federal human health and aquatic life water quality criteria in favor of state criteria for certain waters of California's San Francisco Bay, New Jersey, and Puerto Rico. 

EPA Region 6 proposed an NPDES general permit to regulate discharges from oil and gas wells in two coastal areas of Texas.