I remember droughts and dug wells going dry all during the 1950s and 1960s. Ours included. A neighbor had a deep drilled well and we went to his house and filled milk containers (the big metal ones) to take home.
Yep and a lot of wells started giving bad water with lots of minerals and sulphur.
The family of An old girl friend of mine down near Karnes city had one of the only potable water wells and that’s where a lot of folks brought those milk cans. Might be the same area. :-)