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The Arizona Department of Environmental Quality says an area of orange soil and water found near a former mine in the town of Walker is from naturally-occurring iron.
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Smoke from the Pipeline and Haywire fires is expected to settle heavily in Doney Park and northern Flagstaff tonight, with lighter impacts on outlying areas. KNAU’s Melissa Sevigny reports, residents are advised to minimize outdoor activity to protect their health.
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Smoke from wildfires in the western U.S. and Canada is blanketing much of the continent, including thousands of miles away on the East Coast. And experts…
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Grand Canyon National Park officials have limited visitation and water use at Phantom Ranch as they overhaul a wastewater treatment facility. It comes…
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Reduced traffic on the roads during the coronavirus pandemic has led to improvements in Arizona’s air quality. KNAU’s Melissa Sevigny reports.Ground-level…
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The Clean Water Act no longer applies to ephemeral streams which do not flow year round, due to a new rule from the Trump administration. KNAU’s Melissa…
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Flagstaff residents in recent months may have noticed a handful of shuttered gas stations in the city. KNAU’s Ryan Heinsius reports, they’re among nearly…
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The Arizona Department of Environmental Quality has lifted a statewide ban on recycling wastewater for drinking. Flagstaff city officials say the new rule…
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Arizona is the first state to complete a comprehensive, voluntary screening program to check for lead in public school drinking water. KNAU’s Melissa…
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State officials have cleared three uranium mines near the Grand Canyon to continue operations. The Arizona Department of Environmental Quality recently…