Ontario · CSA Z769 & O.Reg. 153/04

Phase 2 Environmental Site Assessment in Whitby

Ben Engineering offers Phase 2 Environmental Site Assessment (ESA) consulting in Whitby, Ontario — with intrusive sampling and laboratory analysis under CSA Z769 and O.Reg. 153/04.

Request a Quote See Phase 1 ESA

Standard: CSA Z769financing & due diligence
Regulation: O.Reg. 153/04RSC, rezoning, permits
Prepared by: Licensed P.Eng & P.Geo30+ years experience
Service area: Whitby, ONand Southwestern Ontario

What is a Phase 2 Environmental Site Assessment?

A Phase 2 ESA is an intrusive investigation involving borehole drilling, soil and groundwater sampling, and laboratory analysis, typically conducted after a Phase 1 ESA identifies Recognized Environmental Conditions.

See our Phase 1 ESA overview for more. In Ontario, Phase 2 ESAs may follow CSA Z769 (financing, due diligence) or O.Reg. 153/04 (RSC filing, rezoning, MECP applications).

Industrial and Commercial Context in Whitby

Whitby's industrial lands are concentrated in the Whitby Industrial Park near Thickson Road and Highway 401, alongside newer distribution facilities in the town's north end.

Multi-Residential Development in Whitby

The Thickson Road and Dundas Street corridors carry an expanding cluster of mid-rise apartment and condominium buildings, complementing established residential neighbourhoods near the Whitby waterfront. Properties near these commercial and industrial corridors are the ones most likely to require environmental due diligence before financing, redevelopment, or a change of use.

Why This Matters for Properties in Whitby

In Whitby, as in most established Ontario communities, a Phase 2 ESA is most often triggered by a property's proximity to active or former industrial, automotive, or fuel-handling uses, or by a proposed change to a more sensitive land use.

How a Phase 2 ESA Is Actually Carried Out

Where groundwater is encountered, monitoring wells are installed to allow repeat sampling over time, since a single groundwater sample can be misleading if contaminant concentrations vary seasonally.

Borehole locations are selected based on the Phase 1 findings, typically targeting areas of suspected historical spills, former tank locations, or drainage points where contaminants would be expected to accumulate.

Environmental Site Assessment — Overview

Nearby areas we serve

Also servicing the surrounding region

Phase 2 ESAs by area

We work across Ontario, generally within 500 km of our Vaughan head office. Each area has its own page.