At former Wurtsmith Air Force Base, Michigan, a $4.7 million expansion of pump and treat system will help the Air Force reduce perfluorooctane sulfonate and perfluorooctanoic acid, or PFOS/PFOA, in groundwater migrating to Clark's Marsh from the former base fire training area. The Air Force is closely monitoring the system in the first 90 days of operation to ensure that extracted groundwater has been effectively treated to remove PFOS/PFOA. (Courtesy Photo)
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iPhone 13 Pro
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iPhone 13 Pro back triple camera 5.7mm f/1.5
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3/2
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1/120
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100
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