HarborLAB Environmental Science Intern Erik Yax Garcia of Keuka College made a presentation about water quality sampling and testing to the Hunters Point Community Middle School this week. He demonstrated sampling and explained the need for precise, uniform techniques. Then in the classroom he gave a PowerPoint presentation about the science used to identify water quality problems and solutions.

“For me it was a great experience to work with middle school students and it was very challenging because they would ask for details and deep explanations,” Erik said. He noted that a central question was, “what can we do to have clean water?”

Erik’s visit melded with the students’ curriculum, said science teacher Mary Mathai. “Erik Yak’s presentation was very informative. This worked very well since in their present unit of study, we have been talking about the enterococcus bacterial levels in the water and about CSO’s,” she said.

Mathai praised how methodical Erik was in his instruction. “He introduced students to the sampling sites in his presentation. He also showed them a video on the CSO’s.  This was followed by a demonstration of how water samples are collected with importance given to preservation of the samples and avoidance of contaminating the samples.Photographs of the enterococcus bacteria were shown to students.  This was very much tied into what students were learning in the classroom, since they were involved in a project based learning activity regarding CSO’s and water quality in New York Harbor.  Students were then taken to the sampling site in Long Island City, where Erik demonstrated the water sample collection.  This was followed by a question and answer session,” she recounted.

NYC is behind schedule in fixing the CSO problem, but has spent billions of dollars toward that end in recent years. Traditional engineering solutions are termed “grey infrastructure” because they rely on concrete catch basins and new facilities. Another set of solutions gaining favor now are grouped together as “green infrastructure” because they rely on plants and are sustainable and resilient. Green roofs, bioswales, tree pits, and other planting absorb rainwater into soft earth and up through roots so that less pours into the sewer system.