![A woman in a pink shirt collects samples from a stream using a large, elongated net as three Sanctuary youth fellows look on.](https://www.mediasanctuary.org/wp-content/uploads/2023/09/IMG_1458-768x1024.jpg)
Throughout summer 2023, Water Justice Lab fellows had the opportunity to work with RPI Earth and Environmental Sciences professor Dr. Sarah Cadieux on her emerging research project on microplastics contamination in local surface water and drinking water. Sarah is doing research in our local drinking watershed, and using NATURE Lab as the site for processing samples and recording data.
On June 28, the Water Justice Lab team spent the morning taking surface water samples at three locations. Visiting artist-researchers, including Ipi Fernandez, Monica Duncan, Senem Pirler, and Allie Wist, joined the team as well. The first sampling location was Sunkauissia Creek where it crosses under Route 7 at Hall Road. Sunkauissia Creek is a tributary to Troy’s drinking water supply at Tomhannock Reservoir, which we visited during our Week 1 tour. Fellows and mentors worked with Sarah and her team to take stream measurements including depth, width, and water velocity, then used two different methods to collect samples for microplastics analysis back at the lab. Sarah is comparing the results of using a large seining net versus collecting samples in mason jars. She hopes to determine how much water volume is necessary to use mason jars for sampling, so she can work with community science volunteers to collect samples in the future.
![Sarah stands in knee-deep murky water, collecting samples with a large, elongated net.](https://www.mediasanctuary.org/wp-content/uploads/2023/09/IMG_1078-768x1024.jpg)
![Four Sanctuary youth fellows, wearing waders, stand in a circle in knee-deep murky water. They appear to be looking at an object held by one of the youth fellows, but the object is not visible.](https://www.mediasanctuary.org/wp-content/uploads/2023/09/IMG_1070-1024x768.jpg)
![Two Sanctuary youth fellows organize water samples in jars.](https://www.mediasanctuary.org/wp-content/uploads/2023/09/IMG_1105-2-768x1024.jpg)
Once we learned the collecting process, we visited two more sites in our drinking watershed: Otter Creek (the site of last years’ macroinvertebrate sampling), and the Tomhannock reservoir itself.
![Sarah stands on the pebbled shore of a body of water with a group of Sanctuary youth fellows. Sarah gestures broadly with her hands, apparently talking.](https://www.mediasanctuary.org/wp-content/uploads/2023/09/IMG_1125-1024x768.jpg)
![A dark-skinned young man, wearing waders, stands in ankle-deep water and reaches to the bottom, creating ripples.](https://www.mediasanctuary.org/wp-content/uploads/2023/09/IMG_1130-1024x768.jpg)
On subsequent days back at the lab, Sarah demonstrated her process for filtering and “digesting” the samples to remove all organic material so that only small plastic fragments remain. Once the samples were processed, they were ready to be viewed through microscopes and data about the different types and quantities of plastic recorded. We’re all looking forward to learning more about Sarah’s results, and how we might respond to the presence of microplastics in our surface water and drinking water.
![Sarah, wearing a lab coat, works with water samples in the NATURE Lab.](https://www.mediasanctuary.org/wp-content/uploads/2023/09/IMG_1478-2-768x1024.jpg)
![A beaker of slightly murky water warms up on a heating plate in the NATURE Lab.](https://www.mediasanctuary.org/wp-content/uploads/2023/09/IMG_1479-2-768x1024.jpg)
![A light-skinned woman with short brown hair uses a microphone in the NATURE Lab.](https://www.mediasanctuary.org/wp-content/uploads/2023/09/IMG_1739-768x1024.jpg)