The Clean Water Act has reached its 50th anniversary. Still befuddling federal regulators is nonpoint-source pollution — a technocratic term describing pesticides, oil, fertilizers, toxins ...

The International Boundary and Water Commission, County of San Diego and the Air Pollution Control District are warning South Bay residents of potential increased wastewater flows and odors due to ...

The Sacketts bought a lot in Idaho in 2004. Soon after they started building, the EPA told them to stop. The two sides have been fighting ever since.

Scientists have found a ‘sleeping giant’ of environmental problems: Earth is getting saltier. Salt used to de-ice roads is the single biggest source of salt in the U.S.

A study by UC San Diego researchers reveals that pollutants found in the sewage-laden Tijuana River are ending up in the air near the U.S.-Mexico border in San Diego County.

Experts said the decision would sharply undercut the agency’s authority to protect millions of acres of wetlands under the Clean Water Act, leaving them subject to pollution without penalty.