Sam had worked with me for sixteen years. He was not a man who called because an indicator needle moved a fraction. He called because he had ruled out the ordinary causes and was running out of ordinary explanations.
I went out carrying a pressure gauge, a soil probe, and a notebook with the corner bent from being stuffed into my back pocket. I tested the west block, then the lower peach rows. At the first station the pressure was weak. At the second it was worse. On a healthy irrigation turn, you could hear water passing through the filter station with a smooth, reassuring pressure. That morning, the sound had become thin and uneven.
I dug beside a young tree. The surface soil was dry, which was no surprise in August. But below that, where the emitters should have kept moisture around the roots, it was drying too. I pushed the probe deeper and found the same thing. I had the unpleasant sensation of discovering a problem after it had already been hurting us for days.
The district turnout at the north boundary was open. Its meter showed that Mesa Valley Irrigation District was delivering the volume I had scheduled and paid to receive. I checked the meter serving our orchard zones and watched the figures fail to agree. Water was entering my private lateral at the expected rate. Only a little more than half was reaching the trees.
There are several possible reasons for numbers like that. A buried line can break. A gate can stick partly open. A measurement can be wrong.
If you have enough acreage, a hidden leak can swallow an astonishing volume before somebody notices it at the surface. I did not begin with the assumption that a neighbor had stolen my water. I began with the assumption that my system had failed and that I had to find where.
I drove along the lateral in my old work truck, stopping at each access point, checking the bank for seepage and the channel for obstructions. The first four hundred yards told me nothing. The next two hundred were clear. At the bend near a row of cottonwoods, I heard an unfamiliar rushing sound behind the wind moving through the leaves.
I followed it uphill and found a new steel valve box cut into the private line.
The earth around it was still raw. The gravel had been disturbed by equipment tracks, and a broad black pipe, about ten inches in diameter, disappeared beneath the landscaped berm dividing my property from Canyon Lake Estates. Someone had dug through the boundary, connected a branch to my irrigation lateral, and hidden most of it behind fresh sod and ornamental shrubs.
For a moment I simply stared. The connection was too substantial to be the work of a curious homeowner with a shovel. It required equipment, materials, planning, and a crew. Someone had paid to put it there. Someone had expected it to stay.