Educate yourself about local snake species to know how much to concern yourself and which ones to be concerned about. I had a well pit where snakes liked to congregate in the electrical box. In my overly creative mind they were venomous Eastern Massasauga Rattlesnake, where in reality they were harmless Milk Snakes. Now that I think of it, I had very few mice problems in that pit,
Mark Bischak, Architect