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In this file photo, wastewater sits inside of a partially operating treatment tank at the Passaic Valley Sewerage Commission, Thursday, Nov. 15, 2012, in Newark, N.J. The CDC announced on Feb. 4, 2022, that it is expanding efforts to sample wastewater for the coronavirus and is posting data from its national surveillance network for the first time on its online COVID-19 tracker. (AP Photo/Julio Cortez, File)  **FILE**

In this file photo, wastewater sits inside of a partially operating treatment tank at the Passaic Valley Sewerage Commission, Thursday, Nov. 15, 2012, in Newark, N.J. The CDC announced on Feb. 4, 2022, that it is expanding efforts to sample wastewater for the coronavirus and is posting data from its national surveillance network for the first time on its online COVID-19 tracker. (AP Photo/Julio Cortez, File) **FILE**

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