Figure 3 Geometric means of fecal coliform bacteria concentrations at 10 sampling sites in the Norwalk River Watershed in June, July, August and September 2002 (16 testing days) when the two Ridgefield and one Georgetown wastewater treatment facilities a

Figure 3a Geometric means of E. coli bacteria concentrations at 10 monitoring sites in the Norwalk River Watershed in May 2004, (4 testing days) when the two Ridgefield and one Georgetown wastewater treatment facilities are required by permit to disinfect sewage effluent

Figure 3b Geometric means of E. coli bacteria concentrations at 10 monitoring sites in the Norwalk River Watershed in October 2003 – April 2004, (7 testing days) when the two Ridgefield and one Georgetown wastewater treatment facilities are not required by permit to disinfect sewage effluent

^aUpper CT DEP water quality standard limit E. coli bacteria levels, Class B rivers