PFAS & Water Quality in Miami, FL

Where Miami's drinking water comes from

South Florida, the Miami area included, tends to draw its drinking water largely from the Biscayne aquifer, a shallow, highly permeable groundwater system that underlies much of the region, rather than from distant reservoirs. Supplies across the area largely lean on wells reaching that aquifer. Which well field and treatment process serves a given street can vary, so take this as the regional source picture rather than a fact about your own tap.

To find your Miami water company, start with the system listed above and look up its public contact details and its annual Consumer Confidence Report, which every utility is required to publish. Because two homes close together can sit on different public water systems, the city-wide summary here may not describe your tap. A quick phone call to the utility listed above costs nothing and clears up more than another round of searching. Confirming the system tied to a specific address is worth reviewing when evaluating an address.

Miami water hardness

Drawing on limestone-based groundwater, water across much of South Florida tends toward the harder end, though that's a regional lean and your particular supply may not follow it. We won't list a hardness number for Miami, since no hardness dataset exists to back one up. If your faucets keep developing a chalky crust, a drugstore test strip or the hardness entry in your utility's yearly report will tell you where you actually stand.

Reading this when you're evaluating a Miami address

City-level numbers describe the broad pattern around Miami; two homes a mile apart can sit on different water systems with very different profiles. The address report fills that gap — it identifies the public water system serving a specific property, lists any PFAS detections on that exact system, and maps the nearby industrial and Superfund sources.