Lissom Earth Sciences has been established in Eastern Ontario since 1986, servicing the Quinte Area from the following address:

Unit #3, 67 King Street
Picton, Ontario K0k 2T0


613-476-8147 or 1-800-829-7299

This location between Central and Eastern Regions enables the Company to effectively provide a variety of services throughout Ontario.

  • Ground water supply evaluations (communal and private),
  • Sewage disposal system assessments, including tertiary treatment design,
  • Municipal Biosolids Management,
  • Environmental Site Assessments,
  • Quarry dewatering assessments,
  • Hydrogeological Assessments for severances and subdivisions,
  • Groundwater monitoring programs,
  • Assessment of waste disposal sites and management,
  • Expert witness services.

Clients include the provincial government, municipalities, mining companies, engineering/planning firms, architectural firms, lawyers, construction firms, land developers, private/commercial business, industry, and home owners. Inclusive of these clients is the Ministry of Natural Resources - Ontario Parks, Hastings & Prince Edward District School Board, Ministry of Transportation, Municipalities of Prince Edward County, Belleville, Quinte West, Greater Napanee, and the Ontario Clean Water Agency.


Professional Hydrogeologist
Office Manager
Geotechnical Engineering Technologist
Environmental Technologist
Professional Engineer
Groundwater Resources Manager
Mr. John Porritt, B.Sc., P. Geo.
Ms. Jane Corey
Mr. Josh Coghlan
Ms. Mary Collins, WQA
Mr. Ernie Margetson, P.Eng.
Ms. Catherine Wagner, B. Sc.(Env)

The Company holds Certificates of Authorization under the Association of Professional Geoscientists of Ontario and the Professional Engineering Association of Ontario and is licensed with the Ontario Ministry of the Environment (MOE) as a Water Well Contractor and the Ministry of Municipal Affairs & Housing as a Sewage System Contractor. Employees hold MOE Water Well Technician, and Water Quality Analyst licences.

The Company is insured for professional errors and omissions including coverage as required under the Association of Professional Geoscientists of Ontario and the Professional Engineers Act of Ontario.

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