Author Archives: Jen Payne

Since 2021, FRWA has been studying Rainbow Reservoir to determine the causes of recurrent cyanobacteria blooms which are negatively affecting water quality, recreation, and aquatic organisms. In 2025, FRWA requested funding from LFSWS to expand the study to include nutrients throughout the watershed. Sites above and below the 8 sewage treatment plants on the Farmington River and selected tributariesContinueContinue reading “Enhanced Cyanobacteria Research”

Fifteen sites were monitored for chloride pollution in 2025, using a multiparameter meter. The primary source of chloride pollution in the watershed is road salt application, yet chloride can infiltrate groundwater and appear in waterbodies during drought. Chloride was higher at all sites for both yearly average and maximums. While higher, not all sites wereContinueContinue reading “Water Quality Monitoring: Chloride”

FRWA deployed water temperature loggers at nine sites in 2025. Each recorded temperatures throughout the year to document habitat for temperature-sensitive species and to assess trends. Summer average temperatures decreased for Rainbow Brook in Windsor from “warm” to “cool,” while the Farmington River downstream of the Rainbow Dam in Windsor increased from “cool” to “warm,”ContinueContinue reading “Water Quality Monitoring: Water Temperature”