May 30 Raritan River Pathogen Monitoring Results

Many thanks to our great team of volunteers who dedicated their Thursday to sampling for fecal coliform and enterococci at six non-swimming beach public access sites along the Raritan River.

Enterococci levels are used as indicators of the possible presence of disease-causing bacteria in recreational waters. Such pathogens may pose health risks to people fishing and swimming in a water body. Sources of bacteria include Combined Sewer Overflows (CSOs), improperly functioning wastewater treatment plants, stormwater runoff, leaking septic systems, animal carcasses, and runoff from manure storage areas. Enterococci levels are often high after heavy or consistent rainfall.

Enterococci results are reported in Colony Forming Units or CFUs.
Suitable levels for enterococci in marine (salt) waters are 104 – 501 cfu/100mL for a single sample, and for freshwater 61 – 151 cfu/100 mL as a single sample reading.

Site NameTime Enterococcus (CFU)
Riverside Park (40.54067, -74.51219)9:51TNTC
Rutgers Boathouse (40.48826, -74.43384)10:32 TNTC
Edison Boathouse (40.48769, -74.38409)11:09TNTC
Ken Buchannan Waterfront Park(40.47483, -74.35586)11:47TNTC
South Amboy Waterfront Park (40.48334, -74.2698)12:3027
2nd Street Park (49.50007, -74.27719)1:03120

Huge thanks to our partners EARTH Center of Middlesex County and the New England Interstate Water Pollution Control Commission. We are still working to develop a platform for data reporting and sharing, but for now see our program overview for more information on the sites and our monitoring efforts.

Monitoring at Riverside Park in Piscataway 5.30.2019.
Photo by Jim Hearty

Please note that while we follow quality control measures, the real-time nature of data delivery means that EPA has not reviewed, and these are not technically quality controlled.

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