US PATENT NO. 11,035,105
FREE CONSULTATION. CALL 708.320.3197

Chicago Residential Pilot

North Side, Chicago

Noah Installed: Late 2018
Single-Family Home
Pre-Noah Average Lead Level: 96.1 ppb

Post-Noah (May 2020): <1 ppb (Non-Detectable) System still running as of 2024

Challenge

In 2018, amidst rising public concern following the Flint Water Crisis, a Chicago homeowner requested drinking water testing through the Department of Water Management (DWM). The results were alarming: lead levels far above EPA action limits, with some samples nearing 100 ppb. Local officials knew the public optics—and health risks—were serious.

As in many older Chicago homes, decades-old plumbing was the likely culprit. While DWM advised flushing taps for five minutes before use, this “solution” felt unreliable, impractical, and reactive.

The family didn’t just want a workaround. They wanted peace of mind.

Solution

Building on the system’s proven success in public schools, Michael Ramos set out to demonstrate that the Noah auto-flush technology could also solve lead issues in residential settings. Within a week, a Noah unit was installed at a strategic endpoint in the home’s plumbing system.

The goal: determine if smart auto-flushing could deliver the same lead reductions in a single-family home as it had in large facilities.

Result

It worked—better than expected.

  • Before Noah: 96.1 ppb average
  • After Noah: <1 ppb (non-detectable)
  • Today: The system remains in place and has consistently delivered safe, lead-free water for nearly 6 years.

What began as a single family’s crisis turned into a powerful proof point: Noah’s technology isn’t just for institutions—it works at home, too.

“We didn’t want to move—we just
wanted to feel safe. Noah gave us that.”
— Chicago Homeowner (anonymized)