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National River Cleanup Day
May 21, 2022
When is National River Cleanup Day celebrated in 2022?
National River Cleanup Day is observed on the third Saturday of May.
Observations
| Weekday | Month | Day | Year |
| Saturday | May | 21 | 2022 |
| Saturday | May | 20 | 2023 |
| Saturday | May | 18 | 2024 |
| Saturday | May | 17 | 2025 |