Buying With a Well and Septic: What Gets Asked

Why a well and septic change the file

Buyers looking past the edge of Kitchener, Waterloo or London often find the same trade: more land, more privacy, and a house that supplies its own water and handles its own wastewater.

In rural parts of Waterloo Region’s townships, and across Middlesex, Oxford, Perth and Elgin, that setup is common. For a lender, it adds risk that a city lot does not carry. A house with no safe water or a failed septic system is hard to live in and hard to resell, and the lender’s security is the house.

So the questions arrive. They usually arrive through your lawyer, because lenders send their requirements to the lawyer who closes the file. The Canadian Bar Association publishes a Mortgage Instructions Toolkit that shows how lawyers are advised to respond, and it is a clear window into what is typically being asked.

The water: what the guidance says

The toolkit says plainly that a lawyer is unlikely to be able to obtain confirmation from an authority that well water is safe for human consumption. Testing only covers a limited set of contaminants; it may look at bacteria and nothing else, while lead or arsenic would never be checked. Flow can change with the season, with how many people use the water, and with nearby construction. A wet season or two can temporarily raise the underground supply, and an extended drought can reduce it.

It adds that public health units, other government authorities and private laboratories do not issue certificates beyond the results of the tests they run, and that a result such as “meets the bacteriological standard” is limited to the date, time and place where the sample was taken.

What lenders do with that uncertainty is written into the sample instructions the toolkit quotes: if the property is not on municipal services, the lawyer must obtain confirmation from the appropriate authority that the water is safe for human consumption, or put title insurance in place. The toolkit’s practical advice is to get a well-water analysis from an accepted source and, if possible, a well driller’s report or certificate on flow. It also warns that title insurance may not cover every water deficiency, so the policy’s wording matters. Our article on title insurance covers what a policy does and does not do.

The septic system: ask for the paper early

The same toolkit notes that nobody can guarantee the status or shelf life of a septic system, yet lenders sometimes ask for assurance. Its sample instructions range from a certificate or letter from the municipality or another regulator, to a statement from the owners that, to the best of their knowledge, the system operates satisfactorily.

The guidance for lawyers is practical, and buyers can borrow it:

• Before signing the offer: include a pump-out of the septic system by the vendor and a report on its condition as a condition of purchase.
• After signing, before the inspection period ends: ask the vendor to agree to a pump-out and a report within that window.
• Ask for the record: installation date, installer, a plan of the design, municipal approval and pump-out history.
• Ask what changed: the guidance specifically mentions additional bedrooms or a secondary suite added after the system was installed.

It also notes that a certificate of installation is not a reliable indicator of the system’s current state. A pump-out and report is a more current picture.

Build the timing into the offer

Neither test fits neatly into a short conditional period unless you plan for it. Sample collection, lab turnaround and a septic contractor’s schedule all take days. If a well-water sample is needed to satisfy the lender, the clock starts when the sample is submitted, not when the offer is signed.

• Ask your Mortgage Broker, before you make an offer, which documents the lender will want for the water and septic.
• Make the offer conditional on both, with enough days to book the testing.
• Tell your lawyer early, so lender instructions about water and septic are read before closing week.
• Keep the reports. A buyer who sells later will be asked for the same paper.

What this means for the mortgage itself

Not every lender treats rural properties the same way. Some are comfortable with a well and a septic system if the paperwork is in order. Others add conditions, or restrict acreage or outbuildings. That is one reason it helps to compare lenders for a property like this rather than start with one.

If your plan includes a secondary suite or a renovation, mention it when you apply. As the guidance itself notes, added bedrooms or a suite can change how a septic system should be assessed.