Buying a House With a Well and Septic in Ontario

Buying a house with a well and septic means taking on two systems a town would otherwise run for you: your own water supply and your own sewage treatment. In Ontario both come with rules, public records and free help from public bodies, and both sit outside a standard home inspection. Here's what to check before you firm up an offer on a rural property in Norfolk, Haldimand or the counties around them.

Why the home inspection alone isn't enough

The InterNACHI Standards of Practice that Jim Ward follows leave wells and septic systems out of the exterior inspection, and they don't include testing water quality or pressure. The home inspection still covers the plumbing inside the house: the shut-offs, the water heater, supply lines, fixtures and drains. But the water source and the system the drains empty into are separate questions. CMHC's home-buying guide makes the same point: with a well, test the water; with a septic tank, have it inspected.

Plan both as their own steps, with their own timing, inside your conditional period.

The well: what Ontario's rules say

Wells in Ontario are governed by the Wells Regulation, R.R.O. 1990, Reg. 903, which sets requirements for building, maintaining and abandoning private wells. The province's Wells on your property page is blunt: if you have a well, you're responsible for it. That includes protecting the water from contamination and plugging and sealing a well that isn't used or maintained. Building, repairing or abandoning a well is work for a licensed well contractor.

Find the well record

When a new well is built, the contractor has to submit a well record to the ministry within 30 days. You can search Ontario's Map of well records by address, by coordinates, or by township, lot and concession, and by fields such as well ID, tag number and well depth. The ministry warns that a record may be missing if it was never submitted, was incomplete, or couldn't be tied to a location, and that it doesn't guarantee the information is current, accurate or complete. Ask the seller for their copy as well; the province tells owners to keep it somewhere safe.

Know what kind of well it is

The province distinguishes deep drilled wells from shallow dug wells. Ontario's testing guidance notes that shallow wells (under 3 metres) can change in quality within hours or several days after rainstorms or thaws. A single clean result tells you less about a shallow dug well than about a deep drilled one.

Well water testing in Ontario

Public Health Ontario tests private drinking water for free, for E. coli and total coliforms, the bacterial indicators of contamination. Kits come from a PHO laboratory, your public health unit or a designated pickup location. A few practical rules from PHO's pages:

• Use the PHO bottle from the kit and fill it to the line (200 mL).
• Samples must be tested within 48 hours of collection. Keep the sample cool but not frozen, and get it to the drop-off quickly.
• Turnaround is up to 4 business days, so leave room in your conditional period.
• Total coliforms of 5 or less per 100 mL with zero E. coli means no significant bacterial contamination. More than 5 total coliforms, or any E. coli, means stop using the water and contact your public health unit.
• PHO doesn't test for chemicals. For nitrates and other chemistry, the province points you to a private accredited laboratory, and that testing carries a fee.

How often should you test? The province's Wells on your property page says at least 3 times a year, every spring and fall, and more often if you suspect a problem.

In Norfolk and Haldimand

Grand Erie Public Health serves the City of Brantford, the County of Brant, Haldimand County and Norfolk County. Its well water page says it offers free well water testing for all residents (bacteria only), with bottles available at its Simcoe, Caledonia and Dunnville offices, Monday to Friday, 8:30 a.m. to 4:30 p.m. Samples go back Monday to Thursday; don't drop them off on Fridays or holidays. It recommends testing at least three times a year (spring, summer and fall), and again after well repairs, flooding, a few weeks of not using the well, or any change in taste, smell or colour. Check its page before you go, since locations and hours change.

It also flags nitrates, which are colourless, odourless and tasteless: Ontario's standard is 10 mg/L as nitrate-nitrogen, high-nitrate water shouldn't be used for drinking or infant formula, and boiling makes it worse, not better. Outside Grand Erie's area, start with your own public health unit.

Flow: is there enough water?

A bacteria test says nothing about quantity. A flow test looks at how much water the well can deliver, which matters for a family, a garden or livestock. Lenders and buyers' lawyers commonly ask for a recent potability (bacteria) result, and some ask for a flow result as well, so ask yours early what they need and how recent it has to be.

Jim offers two water services: a water sample and a water flow test, both call for pricing. See well water testing, and call him to talk through what each involves and how it fits your closing date.

The septic system

In Ontario, septic systems with a design capacity of up to 10,000 litres per day fall under the Building Code Act, 1992 and the Building Code. The province says the local municipality is usually the one that enforces those rules, though in some places it's a board of health, a conservation authority or an upper-tier municipality.

Start with the records

Norfolk County's Building Department keeps septic records for properties where a permit was obtained for the work, and its records go back to 2006. The property owner can request a copy (with ID and a recent tax bill); anyone else needs a completed Applicant Authorization Form, so as a buyer, ask the seller to request it or sign the authorization. Allow up to 10 business days. Norfolk also says a septic permit is required to install, repair or replace any part of a septic system, and that renovations adding bedrooms or plumbing fixtures may need a septic application. In Haldimand and the other counties, ask the municipality's building department.

No record on file doesn't automatically mean trouble, especially for an older system. It does mean you know less, and it's a reason to look harder.

Book a septic inspection separately

A septic inspection is a separate specialist job, and Complete Home Inspections doesn't list it among its services. Find a septic specialist for that part, and use the municipality's records to give them a head start.

What to ask the seller

• A copy of the well record, and any past water test results.
• Any water treatment equipment (softener, filter, UV light) and its service history.
• When the septic tank was last pumped, and the receipts.
• The septic permit, and any repairs or replacements since.
• Where the tank and leaching bed are, so nobody drives or builds over them.
• Any backups, wet spots, odours or slow drains, past or present.
• Any renovations that added bedrooms or bathrooms.

Fitting it all into your conditions

Rural purchases need a little more time. Bacteria results can take up to 4 business days, septic records in Norfolk up to 10, and a septic specialist may not have an opening tomorrow. Talk to your lawyer about conditions that cover water quality, water quantity and the septic system, and book the home inspection early so everything lands before your deadline.

Jim works across Norfolk County, Haldimand, Tillsonburg and Oxford and the counties around them. Request a quote and mention the well when you do.