Back in September, when Hurricane Maria devastated the U.S. island of Puerto Rico, 44 percent of local residents were left without safe drinking water. And though the Federal Emergency Management Agency (FEMA) claims that less than 2 percent of residences are still lacking this basic amenity, last week Sen. Elizabeth Warren told the news site MassLive that the agency has been wrongly classifying homes as “habitable” even though they “may not have clean water.”

But according to Sarah Laskow, author of the Atlas Obscura article “The Hidden Problems With Puerto Rico’s Water Supply,” the island’s water infrastructure was already in deep trouble before Maria hit, due to a combination of leaky pipes, a high concentration of toxic Superfund sites and the natural geography of the area.

On this week’s “TrumpWatch” on WBAI, host Jesse Lent will ask Sarah how we got here as well as what it will take to get Puerto Rico’s water system to flow effectively.