Professors to study source of fecal contamination in Mohawk River


UTICA — Two professors at SUNY Polytechnic Institute (SUNY Poly) may be one step closer to finding the source of fecal contamination in areas of the Mohawk River after being awarded a grant funded by the New York State Water Resources Institute at Cornell University and the New York State Department of Environmental Conservation. 

Dr. Carolyn Rodak, Assistant Professor of Civil Engineering and Dr. Lauren Endres, Assistant Professor of Biology, received a $20,000 “Validation and Application of qPCR-MST of Fecal Contamination in the Mohawk River Watershed” award under the Water Resources Research Grant Program after applying last fall. Dr. Rodak, who began sampling in the Mohawk River in summer 2016, partnered with Dr. Endres last year on the research proposal to identify microbial indicators in the Mohawk River.

The contamination is believed to be caused in part by the city of Utica’s combined sewer system, which merges domestic sewage, industrial wastewater, and storm water runoff through the same sets of pipes in some areas. 

“When we have really large rain events, the system is designed to overflow into creeks and the Mohawk River if the system can’t handle the flow,” Dr. Rodak said.

“Basically, what that means is there’s untreated sewage directly discharged to a water body.” 

Through qPCR microbial source tracking throughout the rest of the summer, Dr. Rodak and Dr. Endres will be able to compare previously sampled water quality information with the source tracking data. “This will lead to a difference in the way we look at the risk contamination poses,” said Dr. Rodak. “If it is a human source, we’re particularly concerned because that means there is a higher chance of pathogens and viruses present.”

Researchers will compare the results sampled against those from Rome’s separate sewage system as a sort of controlled experiment. 

“Many local communities value this watershed, so I am delighted to be able to contribute to this multidisciplinary research effort,” Dr. Endres said.

The Water Resources Research Grant will allow Drs. Rodak and Endres to continue their research throughout December 2020.


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