Iíve never heard of anything like that in Tonopah or elsewhere in AZ. However it might depend on the location of the home and itís elevation. There are many dry washes most of the year, but with a little rain the wash becomes a good stream or river at times. Home location away from a wash is important and home elevation is also because you donít want to be near ground level and have water run into the house.
I've heard of some AZ builders that have had problems with some stucco homes where rain or water would soak through the stucco and damage the inside wall and drywall. This damage could result in black mold and the homes had to be treated. My understanding was that the cost of $50k for repairs had to be made on each of the many homes.