Location and Distances from Contaminants
It's a general rule of thumb that the further away potential contaminants are from your well, the safer your well. Contaminants can be anything from a flower garden that receives chemical fertilizers, wildlife, roadways, nearby farms or a host of other sources. It is very important that you locate your well upslope to ensure surface water is not able to carry a contaminant directly to your well.
Wells must be located a safe distance from potential sources of contamination such as fuel storage tanks, stockpiles of chemicals like pesticides or road salt, septic systems, gardens, manure piles, livestock, and roads and driveways. The following show minimum required distances in Newfoundland and Labrador between wells and possible contaminants:
These minimum distances do not guarantee safety. Increase the separation wherever possible, and eliminate sources of contamination.