Treadstone Associates
Case File · Environmental

A Phase One report no qualified person could certify

Anonymised, illustrative composite. The report was thorough, current and wrong in the one respect that mattered under Part XV.1 of the Environmental Protection Act: the person who signed it.

Treadstone Associates · Updated 2026

At a glance

  • • Ontario, share purchase of a light-manufacturing company that owned its 1.8-acre site. Price $4,200,000, of which about $1,350,000 was the value of redeveloping the rear yard for residential use.
  • • The buyer held a 140-page Phase One report written by a scientist with 22 years of contaminated-sites work and neither of the two credentials the regulation recognises.
  • • A record of site condition — the only lawful route to that change of use — can be submitted only if a qualified person certifies the Phase One, and O. Reg. 153/04 defines a qualified person by licence, not by experience.
  • • The redevelopment premium left the base price and returned as a payment contingent on a record of site condition being filed within 36 months.

The situation

A buyer negotiated the purchase of the shares of a light-manufacturing company in a mid-sized Ontario city. The company owned its site outright: a 1970s plant on 1.8 acres, a paved yard, and a rail spur that had not taken a car since 2004. The business was steady: $6,800,000 of revenue and about $740,000 of adjusted EBITDA. What made the buyer pay $4,200,000 rather than the roughly $2,850,000 the earnings alone supported was the yard. The municipality's official plan had redesignated the block for medium-density residential, and the buyer's four-year plan was to run the plant, relocate it into a leased unit in the industrial park, and sell the land to a residential developer. The property leg of a deal like this is usually handled the way buying real estate alongside the operating business describes.

The problem

The whole redevelopment thesis required a change of use, and a change of use is prohibited outright. Section 168.3.1(1)(a) of the Environmental Protection Act says a person shall not “change the use of a property from industrial or commercial use to residential or parkland use”. Subsection (2) supplies the only exit: the prohibition does not apply if a record of site condition has been filed in the Environmental Site Registry under s.168.4 and the use specified in it is the use the property is being changed to. No municipal approval, no vendor covenant and no consultant's comfort letter is a substitute. The filing is the mechanism.

And s.168.4(1) is a gate, not a form. It reads: “Subject to the regulations, an owner of a property may submit for filing in the Registry a record of site condition in respect of the property if all of the following criteria are satisfied”. Five criteria follow, and the buyer's file failed the first of them: “A qualified person has certified in the record of site condition that a phase one environmental site assessment of the property has been conducted.”

The report the buyer held was not written by a qualified person. That term is not a compliment about competence. Section 168.1 defines it as “a person who meets the qualifications prescribed by the regulations”, and O. Reg. 153/04 s.5(2) prescribes exactly two routes: a person qualifies if “the person holds a licence, limited licence or temporary licence under the Professional Engineers Act”, or if the person “holds a certificate of registration under the Professional Geoscientists Act, 2000 and is a practising member, temporary member or limited member of the Association of Professional Geoscientists of Ontario”. The author held an honours science degree and a national association membership. Real credentials, and neither of the two the regulation names.

The consequence is worse than a missing counter-signature. Part XV.1 defines a phase one environmental site assessment as an assessment “conducted in accordance with the regulations by or under the supervision of a qualified person”. A report written by someone outside s.5(2), and not supervised by anyone inside it, is not a Phase One assessment within the meaning of the Part at all. There was nothing for a qualified person to certify.

The numbers

Re-doing the Phase One properly was quoted at $11,500 and five weeks. That was never the real cost. The regulation also imposes a currency rule: a report may be used in a record of site condition only if “the date the last work on all of the records review, interviews and site reconnaissance required for the phase one environmental site assessment that is the subject of the report was done is no later than 18 months before” the submission of the record of site condition. The buyer's records review had been completed twenty-six months before the date it intended to file. Even a qualified person willing to adopt the work would have been adopting work that was already stale for the only purpose that mattered.

The new Phase One, supervised by a professional engineer, carried forward two items the original had treated as historical colour: a vapour-degreasing bay decommissioned in 1998 and a 4,500-litre above-ground solvent tank on the rail-spur apron. The Phase Two it forced found trichloroethylene above the applicable residential standards across about 900 square metres of the rear yard.

The rule that decided it

Part XV.1 runs the opposite way round from a deal. In a deal, an environmental assessment is a pricing input: the buyer commissions it to decide what risk it is willing to take and at what discount. Under Part XV.1 the assessment is not a pricing input at all. It is the statutory input to a document that is the only lawful way to change what the land can be used for. Section 168.4(1) makes the filing conditional on all the criteria being satisfied, and the first of them is a certification by a person the regulation identifies by licence. The buyer's report failed that criterion not because it was wrong but because of who signed it, and the Part contains no provision for a report that is substantively sound and formally outside the definition.

The unit matters, and it is a person rather than a firm. A licence under the Professional Engineers Act and an APGO registration both attach to individuals, and a firm will commonly hold both qualified and unqualified staff. The certification in s.168.4(1) is made by the individual, and the retention duty in s.168.4(5) falls on the owner who filed and on that individual, separately.

The outcome

The buyer did not walk. It repriced around what it now knew. The $1,350,000 redevelopment premium came out of the base price, which closed at $2,880,000, and returned as a contingent payment of up to $1,150,000 payable to the vendor if a record of site condition specifying residential use is filed in the Registry within thirty-six months of closing, stepping down by $30,000 for each month beyond that. The vendor accepted the remediation risk because the vendor is the party that ran the degreasing bay.

What it would have cost otherwise

Closing at $4,200,000 on the original report would have bought $1,350,000 of a use the land could not lawfully be put to, and the gap would not have appeared until year four — when a qualified person was first instructed to prepare the record of site condition and had to explain that the existing report could not support the certification and that its fieldwork was three years past the eighteen-month window. By then the vendor's representations would have expired and its holding company would have distributed the proceeds.

The tell

The tell was the signature page. Every report in Ontario written to support a record of site condition is signed by someone whose designation reads P.Eng. or P.Geo., because those are the only two the regulation recognises. This one was signed with a degree and an association membership, and nobody on the buyer's side read the signature block against O. Reg. 153/04 s.5(2).

Takeaways

  • • A record of site condition is the only route out of the s.168.3.1 prohibition on changing an industrial or commercial property to residential or parkland use. If the deal thesis depends on that change, the filing is the deal, not a formality after it.
  • • Qualified person is a licence test, not an experience test. O. Reg. 153/04 s.5(2) recognises a licence under the Professional Engineers Act or an APGO registration, and nothing else. Read the signature block before you read the conclusions.
  • • A Phase One report goes stale for filing purposes 18 months after the last records-review, interview and site-reconnaissance work — not 18 months after the report date.
  • • Commission the assessment to the standard of the filing you will eventually need, not to the standard of the diligence you are doing now. The two engagements cost differently and are signed by different people.

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