The Integration and Application Network along with its partners produced the Norwalk Harbor report card. Overall, Norwalk Harbor health is moderate (received a grade of C+); water quality is good (received a grade of B), but fish and crustaceans need improvement. Scores are determined by comparing two water quality indicators (dissolved oxygen, water clarity) and three biotic indicators (fish, crustaceans, other invertebrates) to scientifically derived thresholds or goals. These indicators are combined and presented as subregion percent scores for the Inner Harbor and Coastal Waters regions. The report card provides a geographically specific assessment of annual Norwalk Harbor ecosystem health for 2013.
