Ontario · CSA Z768 & O.Reg. 153/04

Phase 1 Environmental Site Assessment in Richmond Hill

Ben Engineering offers Phase 1 Environmental Site Assessment (ESA) consulting in Richmond Hill, Ontario — conducted under the CSA Z768 Standard and Ontario Regulation O.Reg. 153/04, performed by licensed P.Eng. and P.Geo. professionals with over 30 years of experience.

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Standard: CSA Z768financing & due diligence
Regulation: O.Reg. 153/04RSC, rezoning, permits
Prepared by: Licensed P.Eng & P.Geo30+ years experience
Service area: Richmond Hill, ONand Southwestern Ontario

What is a Phase 1 Environmental Site Assessment?

A Phase 1 ESA is a non-intrusive investigation to identify potential environmental contamination risks on a property. No soil sampling or laboratory testing is conducted at this stage.

See our Phase 2 ESA page for more. In Ontario, the CSA Standard applies to real estate due diligence and financing; O.Reg. 153/04 applies to rezoning, building permits, or filing a Record of Site Condition.

Industrial and Commercial Context in Richmond Hill

Richmond Hill's industrial base is comparatively limited, concentrated in light-industrial lands in the city's west end, reflecting its predominantly residential and commercial character within York Region.

Multi-Residential Development in Richmond Hill

Yonge Street and Major Mackenzie Drive form the spine of the city's high-density residential growth, with numerous condominium towers built or under construction along both corridors. 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 Richmond Hill

In Richmond Hill, as in most established Ontario communities, a Phase 1 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 1 ESA Is Actually Carried Out

Interviews are conducted with the current property owner or operator, and where possible with previous owners or long-term employees, to capture institutional knowledge of past spills, storage practices, or waste handling that may not appear in the written record.

In practice, the site reconnaissance is conducted by a qualified environmental professional who documents visible evidence of contamination, examines drainage patterns and surface staining, and notes the condition of any storage tanks, drums, or waste materials on site.

Environmental Site Assessment — Overview

Nearby areas we serve

Also servicing the surrounding region

Phase 1 ESAs by area

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