Fair

Charles River 675S (North St. Brodge, Waltham/ Watertown/Newton)

021, MA

Water Quality

Updated Dec 8

Escherichia coli (E. coli) Bacteria75.0 MPN/100mL

Common fecal coliform bacteria indicating possible sewage contamination. EPA recreational limit: <126 MPN/100mL.

Water Temperature0.6 °C

Water temperature directly affects fish metabolism and activity. Optimal range varies by species.

Water Temperature0.6 °C

Water temperature directly affects fish metabolism and activity. Optimal range varies by species.

Enterococcus Bacteria63.0 CFU/100mL

Fecal indicator bacteria found in intestines. Used to assess water safety for swimming. EPA limit: <35 CFU/100mL.

Escherichia coli (E. coli) Bacteria75.0 MPN/100mL

Common fecal coliform bacteria indicating possible sewage contamination. EPA recreational limit: <126 MPN/100mL.

recency/

coverage/

parameters present/