But it’s a looming catastrophe for New Orleans, where officials estimate that tens of thousands of the city’s water pipes are made of lead. Many residents aren’t even aware they have lead pipes supplying their drinking water, said Jessica Dandridge, executive director of the Water Collaborative of Greater New Orleans. Dandridge’s organization works both on water quality issues around the city’s lead pipes and stormwater management and flood control, and they are one of BlueConduit’s local partners working to map the pipes. As a result, lead drinking pipes are all over the country; some national estimates say the total number of pipes is around 9.2 million. It’s “almost a sleuthing or detective (work), trying to find out where the pipes are and where they go,” New Orleans City Councilmember JP Morrell told CNN.

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