York Region · Ontario
Phase 1 Environmental Site Assessments in Markham
For Markham properties, our Phase 1 Environmental Site Assessments follow CSA Z768-01 or O. Reg. 153/04, as the situation requires.
Phase 1 Environmental Site Assessments in Markham
Financing and transaction work generally uses CSA Z768-01; O. Reg. 153/04 is required where a Record of Site Condition, rezoning or permit is involved.
We carry out Phase 1 Environmental Site Assessments in Markham through document review, a site walk and interviews — non-intrusive, with no sampling done. Site attendance is routine rather than a special trip, with our Vaughan head office 9 km or so away.
Full detail on the process and what's in the report is on the Phase 1 ESA page.
A Phase 2 ESA follows when a concern is identified — see our Phase 2 ESA page for Markham.
When you need a Phase 1 ESA
Three situations that most often prompt one.
Nearby areas we serve
Ontario-wide coverage, generally within about 500 km of our Vaughan head office.
Common questions
Phase 1 Environmental Site Assessments in Markham
How long does a Phase 1 ESA take in Markham?
Usually two to four weeks, varying with how fast records and site access come together.
How much does a Phase 1 ESA cost in Markham?
Cost varies with property size, history and how much record research is needed. We fix the price to a defined scope up front.
Which standard applies?
Financing and transaction work generally uses CSA Z768-01; O. Reg. 153/04 is required where a Record of Site Condition, rezoning or permit is involved.
What happens if a concern is identified?
Any concern the review surfaces is usually followed by a recommendation for a Phase 2 ESA, where sampling can confirm what's actually there.
Need a Phase 1 ESA in Markham?
Share the property address and its purpose, and we'll confirm which standard applies, then follow up with a fixed quote.