I exposed a small section at the accessible end with a shovel, stopping when I reached fresh bedding material. I was not looking to damage the line or make the situation worse; I only needed to confirm what the surface was telling me. A new four-inch connection sat against the old main, its fittings clean enough to reflect the weak morning light. There was no installed backflow protection visible where the new branch joined the potable distribution system, and no inspection tag or approved connection drawing attached to the adjacent equipment box.
I sat on my heels and opened Dad's map again. Four inches is not the size of a household service. It is the kind of line you run when you intend to move significant amounts of water. From the junction, I traced the disturbed route toward the clubhouse, passing irrigation boxes and a low concrete pad. Another line turned uphill toward the construction boundary, where orange stakes marked the approach road for Phase Two.
The first leg connected with the clubhouse landscape pond irrigation loop. The pond was a picturesque part of Cedar Hollow's marketing, with a little arched bridge, cattails near the edge, and enough geese that the walking path was regularly dotted with droppings. I had warned the board once about algae blooms during hot summers, but the pond was ornamental and had never been part of the drinking-water supply. A pump near the equipment enclosure drew water for landscaping. The new arrangement created a direct and unprotected relationship between that irrigation equipment and the treated main.
The second leg ran toward a construction hydrant near the ridge, where survey flags fluttered in the wind beside flattened earth. A truck had left deep tire marks near the hydrant, and the dust on its cap had been disturbed recently. I did not need to see a tanker filling to understand why a developer would find such an outlet useful. A separate authorized service connection would have required design review, capacity assessment, metering, and inspection, none of which appeared in the records I had seen.
The missing barrier was the heart of the problem. A properly designed separation or approved backflow assembly is meant to prevent nonpotable water from being pushed into a drinking-water line when pressure conditions reverse. I found no evidence that the people who installed this branch had provided such protection. I could not yet prove every moment of flow, but the pressure records and loss of residual gave me a clear reason to suspect that water from the irrigation side had entered the potable system.
I tried to imagine someone standing over this trench while the connection was made. Whoever approved it would have seen the difference between a landscaped pond and a supply well, the difference between a hydrant for an authorized construction service and a shortcut under a clubhouse lawn. Someone had planned the route, bought the fittings, coordinated work hours, and instructed a crew to cover the soil with fresh sod. That was not an accident caused by a worn-out old valve.