Monitoring > Waterford Station Data

PCBs in Water at Waterford

Water samples are collected regularly at Waterford. All of this data is reported to EPA.

The graph below depicts the PCB levels in water collected at Waterford since the start of dredging in May 2009. EPA's standard for resuspension, which is 500 parts per trillion, is indicated by the red line. Orange triangles represent 12-hour composite averages; purple circles represent 24-hour composite averages; blue squares represent manual sampling; red circles represent sampling during high-flow events.