York Region · Ontario
Phase 2 Environmental Site Assessments in Thornhill
Thornhill properties needing confirmation come to us for a Phase 2 ESA that use intrusive sampling — boreholes, monitoring wells, lab analysis — to confirm what a Phase 1 flags.
Phase 2 Environmental Site Assessments in Thornhill
CSA Z769 generally covers transaction-driven work, while O. Reg. 153/04 applies to RSC filings, rezonings and municipal applications.
For properties in Thornhill, we conduct intrusive Phase 2 assessments combining borehole drilling, sampling and lab testing to settle what a Phase 1 could only flag as a possibility. Our Vaughan head office, located in Thornhill, means the site visit is straightforward rather than something we have to plan around.
The Phase 2 ESA page explains the process and the report in full.
A Phase 2 usually follows a Phase 1 — see our Phase 1 ESA page for Thornhill if that step hasn't happened yet.
What triggers a Phase 2 ESA
A documented history of any of these usually points to a Phase 2.
Nearby areas we serve
Our coverage runs across Ontario, typically within 500 km of Vaughan.
Common questions
Phase 2 Environmental Site Assessments in Thornhill
How long does a Phase 2 ESA take in Thornhill?
Typically three to six weeks from engagement, depending on drilling access, lab turnaround and the number of sample locations.
How much does a Phase 2 ESA cost in Thornhill?
Cost is driven by the number of sample locations, lab work required, and site access, priced to a defined scope before work begins.
Which standard applies?
CSA Z769 generally covers transaction-driven work, while O. Reg. 153/04 applies to RSC filings, rezonings and municipal applications.
Does a Phase 2 always follow a Phase 1?
Usually, yes — a Phase 2 exists to confirm what a Phase 1 flags, but it can stand alone if a specific concern, like a known spill, is already documented.
Need a Phase 2 ESA in Thornhill?
Tell us the address and what the Phase 1 flagged, and we'll confirm the sampling scope and reply with a fixed quote.