Ontario · CSA Z769 & O.Reg. 153/04

Phase 2 Environmental Site Assessment in Guelph

Ben Engineering offers Phase 2 Environmental Site Assessment (ESA) consulting in Guelph, Ontario — conducted under CSA Z769 and Ontario Regulation 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: Guelph, 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 Guelph

Guelph's principal modern industrial node is the Hanlon Creek Business Park in South Guelph, part of the Highway 401/Hanlon Expressway corridor sometimes branded Ontario's Innovation Corridor, alongside established manufacturing areas along Woodlawn Road and Silvercreek Parkway.

Multi-Residential Development in Guelph

The downtown core and the area around Gordon Street and the University of Guelph carry the city's highest concentration of mid-rise apartment and condominium buildings, supplemented by newer development along Stone Road. 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 Guelph

Hanlon Creek Business Park's continued build-out in South Guelph, along with the conversion of older manufacturing sites elsewhere in the city, keeps demand for both financing-related Phase 1 ESAs and O.Reg. 153/04 assessments steady.

How a Phase 2 ESA Is Actually Carried Out

Soil samples are collected at multiple depths from each borehole and screened in the field before being sent to an accredited laboratory, allowing the assessor to prioritize which samples warrant full laboratory analysis.

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.