The EPA recommends that a single Enterococcus sample be less than 110 Colony Forming Units (CFU)/100mL for primary contact. 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.
Below are our pathogens results for October 1, 2020. These are about the worst results of the season so far. Two of our sites had colony forming units (cfus) that were TNTC or “too numerous to count”.
Please note: results are preliminary and pending quality control.
Field Notes for 10.1.2020
Our sites may be “dirty” but they are also beautiful, and places where many go for fishing, recreation, and to learn more about the natural and constructed world.
Photos and article by LRWP Board President Heather Fenyk
The last several weeks of pathogens monitoring in Perth Amboy have given us a front seat view of in-water preparations for the Raritan River Bridge replacement project. The bridge replacement project entails construction of a new drawbridge on New Jersey Transit’s North Jersey Coast Line, spanning the mouth of the Raritan River between the city of South Amboy and the city of Perth Amboy, west of the existing bridge. The ceremonial “groundbreaking” was September 15, and the crew is now working on the project in earnest.
Bridge replacement work will include providing a 300-ft-wide lift channel for boats, as well as demolition of the existing bridge following completion of the new bridge. The existing movable bridge, a swing span built in 1908 and known as River Draw, sustained significant damage during Superstorm Sandy in 2012 when it was struck by a runaway tugboat, shifting it on its pilings and requiring emergency repair before being placed back in service. The overall project cost is $595 million, and the new bridge will integrate resilient structural designs and materials to withstand future storm surges and be significantly less vulnerable to severe weather events.