The Overall Health Index is the average of the six category scores: Economy, Ecosystem, Human Health, Infrastructure, Recreation, and Water. Status of indicators within these categories was evaluated by comparing data to scientifically-derived thresholds or goals.
The River Raisin and its watershed are in Moderate Condition
The River Raisin and its watershed are in moderate condition (54%, C). Water Quality was in moderate condition (44%, C-). The highest-scoring water indicator was Dissolved Oxygen (85%, A), while the lowest-scoring indicator was Nitrogen (12%, F). Water Temperature (49%, C) and Phosphorus (53%, C) received moderate scores, while Turbidity (21%, D-) received a poor score. Ecosystem condition in the River Raisin was moderate (47%, C). Ecosystem scores ranged from very poor (Protected Lands, 12%) to very good (Bird Diversity, 90%).
Human Health was in moderate condition (44%, C-), with scores ranging from very poor (Bacteria, 17%) to good (Air Quality, 75%). Infrastructure condition in the River Raisin is good (69%, B). Scores in this category ranged from moderate (Farmland, 49%) to very good (Sewer Overflows, 95%).
The highest-scoring indicator in the Recreation category was Beach Access (100%, A+), while the lowest-scoring indicator is Watercraft Access (43%, C-). Overall, Recreation was in good condition (66%, B). The Economic condition was moderate (52%, C). While Local Ownership received a very good score (84%, A-), several indicators received poor scores: Cost of Flooding (34%), Income Equality (26%), and Trade (22%).