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ADEQ Updates Stormwater General Permits

General Permit Modifications Four Arizona Pollutant Discharge Elimination System (AZPDES) general permits have been modified to incorporate Arizona’s new Surface Water Protection Program,1 which includes state

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ADEQ Issues General Permit Modifications

General Permit Modifications Four Arizona Pollutant Discharge Elimination System (AZPDES) general permits have been modified to incorporate Arizona’s new Surface Water Protection Program,1 which includes state

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USGS – A Century of Watching the Colorado River

https://www.usgs.gov/news/a-century-watching-colorado-river Release Date: SEPTEMBER 22, 2021 Right where the Colorado River flows into the mouth of the Grand Canyon, an inconspicuous 20-foot-high concrete tower rises from the riverbank.   Inside the tower

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World Car Free Day

Pima County Celebrates Car Free Day by Hosting Mini-Fairs PIMA COUNTY, September 20, 2021–World Car Free Day is this Wednesday, September 22nd, and the Pima

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