A water quality researcher samples Toxic Blue Green Algae in the Copco Reservoir in Northern California.

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Susan Corum, a water resources coordinator with the Karuk tribes, takes water samples with the help of an Americorps volunteer Jillienne Bishop (wearing jean shorts), at the Copco Reservoir in Northern California.

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Size: 5440px × 3627px
Location: Copco,CA,USA
Photo credit: © David McLain / Aurora Photos / Alamy / Afripics
License: Royalty Free
Model Released: No

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