Water Quality
Biologists with the water quality team for the U.S. Army Corps of Engineers Pittsburgh District collect water samples and survey macroinvertebrates in a tributary flowing into Crooked Creek Lake located near Ford City, Pennsylvania, March 30, 2022. The water quality team collects samples around the various reservoirs belonging to the Pittsburgh District every spring to determine the water quality in the region. (U.S. Army Corps of Engineers Pittsburgh District photo by Michel Sauret)

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Photo by: Michel Sauret |  VIRIN: 220330-A-TI382-0566.JPG