Pine Hills grew up as a suburb west of Orlando back in the 1950s, and today, like most of built-out Orange County, it is served by municipal water. We will not pretend every Pine Hills home is on a well, because most are not.
The wells here are on the older lots that kept a legacy well and on properties that run a private irrigation well for the lawn. Just to the northwest, the lots turn more rural toward Apopka and Lockhart, and those genuinely run on private wells drawing the Floridan Aquifer, commonly 100 to 400 feet down. That water moves through Central Florida limestone, so hardness and scale build up inside pumps, tanks, and check valves over the years.