Sanitary Sewer Overflow Concludes in Greenfield on Monday, December 18 at 8:15 P.M.

GREENFIELD –A sanitary sewer overflow that surfaced in Greenfield on Monday, December 18, 2023, at 10:30 a.m. concluded at 8:15 p.m.

The City Greenfield, WPCF, DPW reported the overflow immediately. The discharge consists of untreated sewage and waste. The untreated sewage discharged from a regulator chamber outfall behind 302 Deerfield Street located along the Green River. This is located at Lat 42 0 34 37” Lon 76 0 36’ 33”.

The amount discharged during the overflow was 497,330 gallons.

The sanitary sewer overflow is impacting the Green River and Deerfield River in Greenfield, as well as the Connecticut River in Deerfield, Montague and Sunderland. The overflow does not impact drinking water.

Avoid contact with these water bodies due to increased health risks from bacteria and other pollutants. Community members are asked to avoid all contact with the Green River, Deerfield River and Connecticut River until Wednesday, December 20 at 8:15 p.m.

See the website for more information on whether specific resource areas, such as bathing beaches, are affected. For additional information on discharge, overflows and the water department, visit