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Project Modules and Lesson Plans
https://sugarcreekmethod.osu.edu/node/42
students learn the Ohio EPA's Headwater Habitat Evaluation Index (HHEI), use the method to assess ...
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Updating Ohio’s Phosphorus Risk Index
https://cfaes.osu.edu/news/videos/updating-ohio%E2%80%99s-phosphorus-risk-index
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