He had responded, "Your Sarasota County health department should be able to help with this."

No need to start a new post each time you say something. Always type your answer or question in the blank box at the bottom of this thread. Call the Sarasota County Health Department and they can assist with testing for unhealthy water.

They already have. They've sampled, but haven't been much help otherwise.
They need a sleuth to figure out where the tainted water is coming from i.e. water or poorly maintained system.