The EPA proposes rescinding drinking water limits for four PFAS chemicals while Congress introduces bills to ban forever chemicals from food packaging and cosmetics.
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Is arsenic rise natural? Grand Canyon uranium mine sparks debate
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.