Invasive species mussel in on Gavins Point Dam

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Invasive species mussel in on Gavins Point Dam

The cross-section of a pipe showing a buildup of zebra mussels found at Gavins Point Dam in Yankton, SD, photo taken Sept. 4, 2019

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Photo by: Zane Ecklund | VIRIN: 191213-A-GI410-001.JPG

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