ExamPassEnvironmental site assessment in Ontario
An environmental site assessment finds out whether a property is, or may be, contaminated. A Phase I reviews records, history and the site itself without sampling. A Phase II samples soil and groundwater to confirm and measure contamination. Phase III, as taught, is the cleanup. Lenders often require at least a Phase I on commercial and industrial property, and a record of site condition is needed before a change to a more sensitive use, such as industrial to residential. You spot the risk; a qualified person answers it.
Contamination is invisible on a showing. It sits in soil and groundwater, migrates from neighbouring sites, and can wipe out a deal's financing, value and intended use. The exam rarely asks you to name a contaminant. It asks what each phase does, what triggers one, how the offer's condition is built, and who the client should call.
What are Phase I, Phase II and Phase III?
| Phase | What it does | What it does not do |
|---|---|---|
| Phase I | Reviews records and the history of the site and surrounding area, interviews people who know it, and walks the property | No sampling, no drilling, no lab tests |
| Phase II | Samples soil and groundwater to confirm whether contaminants are present, where, and at what concentration | Cleans nothing up |
| Phase III | Remediation: removing or treating contamination as the findings require | Not a regulated phase |
The Environmental Protection Act defines only two assessments. A phase one determines the likelihood that contaminants have affected the property, and a phase two determines their location and concentration, each conducted by or under a qualified person (Environmental Protection Act, s. 168.1). "Phase III" is industry shorthand. Use the course's three phases on the exam.
Whether soil can carry a new foundation is a geotechnical engineer's question, not a Phase I's.
What triggers an environmental site assessment?
Three places to look: the site's own past, what surrounds it, and the paperwork.
The site's past use. Gas stations, automotive garages, dry cleaners, degreasing, plating, chemical manufacturing, printing and waste sites all point toward a Phase II. So do underground tanks, even removed ones: a tank removal letter shows the tank came out, not that the soil around it is clean. Imported fill of unknown quality is itself treated as a potential source.
The neighbours. Contamination moves. Under O. Reg. 153/04, s. 1(1), the phase one study area is the property plus any property within 250 metres of its boundary, and anything more the qualified person decides to include. A "clean" office lot downhill from an old service station is not automatically clean.
Old reports. A seller's report is background, not a substitute. A phase one report can be used in a record of site condition, or to plan a phase two, only if its records review, interviews and site reconnaissance were completed no more than 18 months before (O. Reg. 153/04, s. 28(1)). It was also written for someone else, so the buyer and its lender need their own current work.
Why do lenders require an environmental site assessment?
A lender's security is the property, and contaminated land is worth less. So most lenders require a Phase I before funding an industrial property, often ask for one on other commercial property, and may require a Phase II where the Phase I flags concerns. An unchanged use does not stop a lender asking.
A financing commitment that still depends on an environmental report is not financing in hand. The course suggests budgeting about two months for a proper assessment once sampling is involved. Date the financing condition so the lender has time to read the report. Both are usually written as conditions precedent; our guide on condition precedent vs condition subsequent explains what silence does at the deadline.
What goes in an environmental condition in an offer?
A well-built environmental due diligence condition covers:
- a Phase I by a qualified consultant, and a Phase II if the consultant recommends one;
- the buyer's cost, with reports addressed to the buyer and its lender;
- the seller's agreement to give access, including for drilling, with the buyer restoring the site afterwards;
- the seller's environmental records, and its authorization for the ministry to release its file;
- the buyer being satisfied there are no hazardous substances, outstanding orders or restrictions on use;
- a realistic deadline with a date and time; and
- the buyer's right to waive by written notice in time, or the deal ends with the deposit returned.
If the Phase II arrives late, nothing extends the condition except an amendment signed by both parties before it expires. A seller is free to say no.
Who pays for testing, and who pays for cleanup?
| Cost | As taught | What current law adds |
|---|---|---|
| Phase I and Phase II | Customarily the buyer | Negotiable as a business term |
| Cleanup | The party that caused it (polluter pays) | The Director may order the person who caused or permitted a discharge to repair the damage (EPA, s. 17), and may order a person who owns or owned, or had management or control of, the property to take steps (s. 18(1)) |
Paying for a test is not taking on the cleanup, and an indemnity does not stop an order against the owner. Those are questions for the client's lawyer.
When is a record of site condition needed?
Before a change to a more sensitive use. No one may change a property from industrial or commercial use to residential or parkland use until a record of site condition for that use is filed in the Environmental Site Registry (EPA, s. 168.3.1(1)(a), (2)). The regulation prescribes further changes the same way, including commercial to institutional or agricultural use, and industrial to those uses (O. Reg. 153/04, s. 14). Institutional use includes a school or a child care centre.
| Planned change | Record of site condition? |
|---|---|
| Warehouse stays a warehouse | No |
| Retail plaza to a child care centre | Yes (institutional) |
| Former dry cleaner site to townhouses | Yes (residential) |
| Office to retail | No (not more sensitive) |
Three details catch candidates:
- Rezoning is not enough. A change in zoning is not a change of use for these rules (O. Reg. 153/04, s. 11(2)). The two regimes are separate.
- A phase two is required for the record if the phase one finds a potentially contaminating activity on the property, or if it has ever been used for industrial use, as a garage, as a gasoline outlet or for dry cleaning equipment (s. 32(1)).
- Submitting is not filing. The Director gives a notice of receipt, then either a written acknowledgement of filing or a notice that the record cannot be filed or will be reviewed (EPA, s. 168.4(3), (3.1)). Build that time into the condition.
A filed record protects owners from specified orders about contaminants present at the certification date, but not if the record is false or misleading, or if contaminants later move to another property (s. 168.7(1) to (3)).
A worked example: a plaza in Belleville
Northmoor Homes Inc. offers $4,200,000 on a 1.1-hectare strip plaza in Belleville to build 40 townhouses. One unit housed a dry cleaner from 1988 to 2014, and a gas bar operated 180 metres east until 2009.
| Issue | What it means |
|---|---|
| Dry cleaning equipment on site | A Phase II is required for the record (s. 32(1)) |
| Gas bar 180 m away | Inside the 250 m study area |
| Commercial to residential | Record must be filed before the change (s. 168.3.1) |
| Seller's 2019 phase one | Too old to rely on; background only |
Northmoor's salesperson, Priya Raman, drafts a 120-day environmental condition covering a Phase I, a Phase II and the consultant's view on filing a record, plus a separate rezoning condition. She tells Northmoor she cannot say whether the site is clean, and refers the questions to the consultant and the lawyer.
Who should the salesperson refer the client to?
Your duty is to demonstrate reasonable knowledge and competence in any opinion you give (Code of Ethics, O. Reg. 365/22, s. 9(2)), and to advise a client to get services you cannot competently provide (s. 11(1)). So:
- Environmental consultant (qualified person): whether contamination exists, what testing is needed, cleanup cost.
- Geotechnical engineer: whether soil can carry a new building.
- Lawyer: liability, indemnities, orders, the record of site condition and the clause.
- Lender: its own environmental requirements.
A spill someone mentions in passing is a possible material fact. You take reasonable steps to determine material facts and disclose them to your client (O. Reg. 567/05, s. 22.1(1)), and you never help conceal one. See material fact vs material latent defect.
Frequently asked questions
Does a Phase I environmental site assessment test the soil? No. A Phase I reviews records, history, interviews and a site walk. Sampling is Phase II.
Is a record of site condition needed for every commercial sale? No. It is needed before a change to a more sensitive use, such as commercial to residential or to a child care centre.
Who pays for the environmental site assessment? Customarily the buyer, though who pays is negotiable. Paying for testing does not make anyone responsible for cleanup.
How does ExamPass help you practise this?
ExamPass has hundreds of original scenario questions on environmental due diligence and other Course 4 and Simulation 2 topics, with every option explained. Read the Study notes, take the Mock Exam, use Drill Wrong Answers to fix the traps you fall for, and ask the AI Tutor when a rule needs another angle. Our Simulation 2 guide shows how these topics appear in scenarios. See courses and pricing.