My Water Quality.ca is Canada's Premier at-home water testing and reporting service. Testing the quality of your well water on a regular basis is an important part of maintaining a safe and reliable source. This will help ensure that the water source is being properly protected from potential contamination. Your municipal water supply may be safe at it's source location, but contaminants can sneak into your water supply via plumbing - including pipes that connect homes to water mains as solder, pipes and fittings and down well casings.