The EPA proposes rescinding drinking water limits for four PFAS chemicals while Congress introduces bills to ban forever chemicals from food packaging and cosmetics.

The Havasupai Tribe called the regulatory decision a "profound attack" on their responsibility to protect Grand Canyon waters from uranium mine contamination.

California boosted Delta pumping sixfold on July 1 while protecting endangered fish — and a new flexible permit approach pushed fish impacts to a near 10-year low.

A Pinal County irrigation district struck a deal for up to 10,000 acre-feet per year of Mojave Desert groundwater to offset deepening Colorado River shortages.

California commits $6 million to fight golden mussels as the invasive species spreads 500+ miles through state waterways in under two years.

Federal agencies awarded $44.3 million to restore salmon and sturgeon habitat and fund critical fish science studies across California's Central Valley rivers.