Surface chlorophyll data were collected on July 15, 2026, while the R/V Data Stream was underway collecting bacteria samples in the Providence and Seekonk River Estuaries. The chlorophyll concentrations were categorized as fair overall with all areas sampled having average chlorophyll concentrations between 5 µg/L and 20 µg/L. Overall, chlorophyll ranged from 0.92 µg/L to 145.69 µg/L with an average of 12.05 µg/L. The chlorophyll concentrations from this date are presented in the map below using Inverse Distance Weighting (IDW) interpolation.
