Turlock
Turlock's housing stock is middle-aged. The median home was built in 1984, and about 41% of homes were built before 1980 (Census ACS). Supply lines, water heaters and drain lines of that age are where a lot of water losses start, so we look for the source, not just the puddle. Since November 2023 the city has blended well water with treated Tuolumne River water, and the result is moderately hard water, which is worth keeping in mind for water heaters and fixtures.
The climate matters for drying. Summer afternoons are hot and dry, but winter mornings in the valley sit near saturation, and roughly 89% of Turlock's rain falls November through April. A wet wall cavity in January will not dry on its own the way it might in July. Equipment and moisture readings, not open windows, decide when it is dry.