Durham Region · Ontario
Phase 1 Environmental Site Assessments in Durham Region
For Durham Region properties, our Phase 1 Environmental Site Assessments use whichever framework applies — CSA Z768-01 or O. Reg. 153/04.
Phase 1 Environmental Site Assessments in Durham Region
CSA Z768-01 tends to serve financing and transaction needs, while O. Reg. 153/04 governs filings such as a Record of Site Condition or a permit application.
Phase 1 ESAs in Durham Region are prepared here combining a records review, on-site observation and interviews, with no soil or water sampling at this stage. We work from our Vaughan head office, roughly 43 km away, so site attendance is straightforward rather than an added cost.
For the complete process and report structure, see the Phase 1 ESA page.
A Phase 2 ESA follows when a concern is identified — see our Phase 2 ESA page for Durham Region.
When you need a Phase 1 ESA
Three situations that most often prompt one.
Nearby areas we serve
We serve Ontario broadly, usually within 500 km of our Vaughan office.
Common questions
Phase 1 Environmental Site Assessments in Durham Region
How long does a Phase 1 ESA take in Durham Region?
Two to four weeks is typical, depending on record availability and how soon we can get on site.
How much does a Phase 1 ESA cost in Durham Region?
Property size, history and the depth of records research all factor in. We quote a fixed price for a defined scope before work begins.
Which standard applies?
CSA Z768-01 tends to serve financing and transaction needs, while O. Reg. 153/04 governs filings such as a Record of Site Condition or a permit application.
What happens if a concern is identified?
A flagged concern typically leads to a recommendation for a Phase 2 ESA, which brings in actual sampling to confirm or rule it out.
Need a Phase 1 ESA in Durham Region?
Send the address and what it's for, and we'll confirm the standard and reply with a fixed quote.