Environmental Site Assessment (ESA) & Water Resources


Phase 1-1
Phase 1-2

ENVIRONMENTAL SITE ASSESSMENT (ESA)

Phase I – Environmental Site Assessment

Phase I-ESA is a detailed engineering analysis and study of a property to determine whether or not there is any evidence that may suggest that the site is contaminated or may become contaminated.

Applicable Codes & Standards:

CSA –Z768-01 & Regulation 153/04

Scope of work:

1. Historical building permits review
2. Historical aerial photograph review
3. Historical Fire Insurance Map review
4. Analysis of local hydrogeological conditions
5. Government environmental database review
6. Inspection of subject property and surrounding areas
7. Interview with owners, occupants and neighboring tenants.
8. A detailed professional site plan
9. Photos with descriptions
10. Conclusions regarding significant environmental liabilities using risk-based analysis recommendations.

List of most common sites:

1. Industrial sites
2. Manufacturing sites
3. Service stations
4. Auto repairs shops
5. Storage tanks (under/above ground) sites
6. Chemical sites
7. Dry cleaners

 

Phase II – Environmental Site Assessment

Phase II- ESA involves testing site samples to confirms or deny site contamination. Phase 2 is performed only when potential or evidence of contamination has been identified in Phase I.

Applicable Codes & Standards:

CSA –Z769-00 & Regulation 153/04

Scope of work:

1. Samples are extracted by digging or drilling into the site with invasive tools or heavy equipment.
2. Sample locations are determined and mapped. Depending on the nature of the hazard, protective clothing or other precautions may be advised.
3. Complicated sites may require official clearance by several agencies based on written proposals before excavation and sampling can begin.
4. All samples must be numbered and carefully packed and conveyed to the lab.
5. Documenting the site work and interpreting lab results.
6. Writing the report includes measurements, maps, sample locations and background data concerning the site and often its history.
7. A feasibility study for remediation is designed.

List of most common sites:

1. Industrial sites
2. Manufacturing sites
3. Service stations
4. Auto repairs shops
5. Storage tanks (under/above ground) sites
6. Chemical sites
7. Dry cleaners

Phase 2-b
Phase 2-a

Who is qualified to perform Phase I & II-ESA?

Qualified persons are identified in Regulation 153/04, section 5, listed below:

1. A person referred to in subsection (2) meets the qualifications to be a qualified person for the purposes of,

a) Conducting or supervising a phase one environmental site assessment; and

b) Completing the certifications that must be completed by a qualified person in a record of site condition in respect of a property if a phase two environmental site assessment was not conducted for any part of the property. O. Reg. 153/04, s. 5 (1).

2. A person meets the qualifications to be a qualified person for the purposes of subsection (1) if,

a) The person holds a licence or temporary licence issued under the Professional Engineers Act to engage in the practice of professional engineering, other than a limited licence issued under that Act;

b) The person is a member of the Association of Professional Geoscientists of Ontario under the Professional Geoscientists Act, 2000, but not if the person is a limited member or a non-practising member;

c) The person is registered as an applied science technologist or a certified engineering technologist by the Ontario Association of Certified Engineering Technicians and Technologists under the Ontario Association of Certified Engineering Technicians and Technologists Act, 1998, being chapter Pr7;

d) The person is registered as an architectural technologist by the Association of Architectural Technologists of Ontario under the Association of Architectural Technologists of Ontario Act, 1996, being chapter Pr20;

e) Pursuant to the by-laws made under The Ontario Professional Agrologists Act, 1960, being chapter 158, the person is certified as a professional agrologist by the Ontario Institute of Professional Agrologists; or

f) The person is registered as a chartered chemist by the Association of the Chemical Profession of Ontario under the Association of the Chemical Profession of Ontario Act,1984, being chapter Pr10. O. Reg. 153/04, s. 5 (2).

3. A person referred to in clauses (2) (a), (b), (e) and (f) meets the qualifications to be a qualified person for the purposes of,

a) Conducting or supervising a phase two environmental site assessment; and

b) Completing the certifications that must be completed by a qualified person in a record of site condition in respect of a property, if the record of site condition for the property is being filed on the basis that the property meets all the applicable site condition standards and no risk assessment was required for that property. O. Reg. 153/04, s. 5(3).

4. A person referred to in clauses (2) (a) and (b) meets the qualification to be a qualified person for the purposes of completing the certifications that must be completed by a qualified person in a record of site condition in respect of a property, if a risk assessment has been carried out in respect of the property and the record of site condition is being filed on the basis that the property meets the standards specified in the risk assessment. O. Reg. 153/04, s. 5 (4).

Water Resources Engineering

TRINUS works closely with its clients to pioneer affordable solutions to protect, enhance, store and distribute water. Our water resources engineers have conducted thousands of investigations, water quality evaluations and basin management studies; and provided planning, design, and construction management services for water resources projects.

TRINUS has the technical resources, knowledge, and multi-disciplinary expertise to bring environmentally responsible water resources solutions that satisfy our clients’ needs and successfully address diverse stakeholder interests and regulatory requirements. Our team confidently applies experiences gained in emerging technologies to provide technical solutions that are sustainable, robust, and based on sound scientific and engineering analysis.

Through effective and efficient project planning, TRINUS experts provide comprehensive services and expertise in regulatory requirements, water resources planning to ensure project success, with services including:

1. Water system master planning
2. Storm water management and master planning
3. Integrated regional water management
4. Water supply asset management
5. Wastewater recycling and reuse
6. Project feasibility studies
7. Planning approval applications, documentation and filing
8. Beneficial reuse
9. Impact analysis and mitigation strategies
10. Groundwater supply development & management planning
11. Water resource evaluation associated with carbon sequestration
12. Water quality evaluations

Water-2