Why is bacteria monitored at Logan’s outfalls?
Elevated bacteria levels have periodically been detected at Logan’s outfalls. Massport is conducting a comprehensive study of the drain and sewer pipes on the landside and in the area of the terminals on the airfield, looking for cross connections where sanitary waste might be entering the stormdrain system. The study is nearly complete and Massport has identified and corrected several areas were there was either a direct connection from the sewer to storm system or areas were pipes were crushed which may have caused sewerage to leak into the storm. The estimated cost of this comprehensive study is $1 million.