Turn on your kitchen tap and think about what just happened.
Somewhere, a pump started. A valve opened. A sensor checked the pressure. Another one checked the chlorine. A tank on a hill sent its level back to a screen in a control room, maybe a few miles away, maybe in the next county.
You didn't see any of it. That's the point. Water is the one service we only notice when it stops.
Most people never picture this part. A town's water system is a scatter of small sites. Wells in a field. Pump stations by the road. Water towers. Lift stations that push wastewater uphill. A treatment plant in the middle of it all. Some systems have dozens of these sites, and a handful of operators to cover every one.
Each site has a small computer that runs it. A controller turns the pumps on and off. A screen lets the operator see the levels and change the settings. A modem or radio link sends it all back to the plant.
Twenty years ago, an operator drove to each site to check it. Today, most of that driving is gone. Remote access made the job possible with a tiny crew. It also did something nobody planned for. It made the pump station reachable from far beyond the fence.
The padlock still works. It just guards the wrong door.
And the people watching? They're the same few operators who are also fixing a main break, reading the meters, and answering the board's questions. Security is one more job on a list that was already too long. There's often no security team at all. There's Dave, and Dave is very busy.
That is the water blind spot. It's a missing pair of eyes.
The rest of this book is about getting those eyes back, without asking an exhausted crew to do more.