Episode 13. Who budgets $188 million annually to treat groundwater? The state of Tennessee does, not that they want to. A 2014 study (Kurz I/I Survey) found that roughly 45% of the water treated from their collection system was from inflow. But the treatment costs are just part of the issue. Inflow can and often does wash fines into the collection system. This has many effects. One, reduced system capacity due to these soils sitting in the pipes. Two, potential sinkholes from the loss of soils over time. A third impact is the increased wear and tear on the system, especially lift station pumps. Lastly, and the easiest to see is sanitary overflows and backups that pollute the environment and can damage property. So, with such a clear issue that obviously needs addressing, why isn’t it being addressed? In this episode, Charlie Lerman discusses these issues with Erin Rothman, the CEO & Founder of StormSensor.

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