Gather the records
Ask for the well record, past water tests, maintenance history and available septic-system documents. Identify the actual type and location of each system.
Check condition and capacity
Use qualified local professionals to assess the systems and their suitability for the intended occupancy. Water quality, water quantity and wastewater capacity are different questions.
Look at the surrounding land
Ask the professionals about nearby activities and conditions that could affect the water supply or system performance. Avoid relying on a single visual inspection of the property.
Understand your responsibilities
Request a practical maintenance plan and confirm local requirements. Budget for ongoing care and potential repairs using advice specific to the system.
Read the source
This guide offers questions to take to local professionals. Requirements depend on the jurisdiction and the particular property.
Health Canada: protecting and maintaining a well ↗