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Pima County taking public comment on new rules for Tucson Electric Power station

The Pima County Department of Environmental Quality is opening a 35-day public comment period today on proposed changes to Tucson Electric Power's emissions permit for its South Side generating station.... Read more»

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Pima County asks Tucson Water to limit chemicals in water pumped to Santa Cruz

Pima County has asked Tucson Water to treat new discharges into the Santa Cruz River for PFAS, a chemical linked to cancer risks, after the city utility announced plans to pump millions of gallons of water from the Tucson Airport Remediation Project.... Read more»

Ducey sends $2M to Tucson to restart water plant shut by military pollution

The state of Arizona will provide $2 million to help Tucson Water restart a treatment plant shut down because of severe groundwater contamination near the Tucson International Airport from PFAS firefighting foam used by the military.... Read more»

Tucson halts operations at water plant threatened by toxic chemical

City officials said they will indefinitely suspend operations at the Tucson Airport Remediation Project water treatment plant to keep it from being overwhelmed by an underground toxic chemical plume containing high levels of the chemical PFAS that could be moving toward the plant.... Read more»

Fresh air in Phoenix: ADEQ collecting data on CV-19 impact on emissions

The Phoenix area is famous for its warm spring days and wealth of outdoor activities, but it’s also known for something less flattering: some of the worst air quality in the country. ... Read more»

Advocates: EPA’s new clean-water rules hit Arizona, Southwest hardest

Clean-water rules unveiled Thursday by the Environmental Protection Agency could remove the vast majority of Arizona’s waterways from federal oversight, a change environmentalists call bad news in a region where water is “super precious.”... Read more»

'Repugnant to the American dream': Federal judges block Trump immigration policy change

Changes in the “public charge” immigration policy were temporarily blocked by federal judges in three states on Friday, days before they were set to go into effect this week.... Read more»

Arizona lacks vehicle idling regulations, encourages voluntary action

There's no law against it but Arizona communities are trying to reduce locally the 30-million-ton problem of idle vehicles producing ozone. ... Read more»

Cochise County vaccinating Naco residents after sewage spill reaches residential areas

Leaking transborder pipelines have been a problem in this small border town for more than 30 years, but this is the first time the toxic sewage has reached residential areas. ... Read more»

Cross-border Nogales sewer needs $25 million in repairs

A transborder pipeline that brings millions of gallons of raw sewage from Mexico to the U.S. faces challenges on two fronts: The pipe is nearly 70 years old and increasingly prone to leaks; and heavy metals in the wastewater are causing problems at the Arizona plant where it’s treated.... Read more»

Santa Cruz River in jeopardy if int'l sewage pipe ruptures again, experts fear

Some residents of Santa Cruz County are warning that the pipeline carrying raw sewage from Mexico into the United States could rupture as it did during last year’s monsoon, when it spewed millions of gallons of waste into the Nogales Wash over seven days.... Read more»

Az public schools still working to get lead out of drinking water

Since state officials identified dozens of Arizona public schools with elevated levels of lead contamination in water fixtures, nearly half the schools still are undergoing repairs or tests for levels that could affect students, faculty and staff members.... Read more»

Advocates: Cuts to EPA budget will be felt in Az programs

Arizona received $315M in funding for specific federal programs over the past five years – funding that could be endangered by proposed cuts to the EPA budget.... Read more»

State officials warn of mercury levels in fishing areas

Arizona environmental officials on Wednesday warned visitors and residents to only eat limited amounts of certain kinds of fish contaminated with mercury found in three fishing areas in the state, adding to a growing list of advisories against fish consumption in lakes and streams.... Read more»

Tucson, other Az cities buck Trump, pledge to stick to Paris climate goals

Arizona cities this week spurned President Trump’s plan to pull the U.S. out of a global emissions compact, with at least three mayors — including Tucson's Jonathan Rothschild — pledging their cities would hew to the emission goals laid out in the Paris accord.... Read more»

Trump plan to exit Paris accord riles Arizona Democrats, warms GOP

President Trump said Thursday the U.S. will withdraw from a global agreement on emissions that “handicaps” the economy, a move that Arizona critics charged will end up harming both the economy and the environment.... Read more»

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