Wastewater testing reveals high levels of cocaine in Nantucket, Massachusetts

Up to three times national average of metabolite produced by human use of drug was found in town's wastewater

Tests on wastewater in an upscale Massachusetts ocean resort town have revealed unexpectedly high levels of cocaine - up to three times the national average.

Officials in the town of Nantucket on the eponymous island off Cape Cod began testing its wastewater last summer to monitor high-risk substances and opioids in the community".