Altamonte Springs is an established Seminole County suburb that dates back to the 1870s and today runs largely on municipal water. Most homes here are not on a private well, and we will tell you that plainly.
Where the wells are is on the older and larger lots that kept a private well, and on the many homes that run a separate irrigation well to keep an established lawn green. Those wells draw the Floridan Aquifer, commonly 100 to 400 feet down, through Central Florida limestone that leaves hardness and mineral scale inside pumps, tanks, and check valves over time.