Highmark Environmental Services Ltd. (HESL) is an environmental consulting company situated in Fort St John, British Columbia. HESL has been in the environmental arena since 1998 serving northeast BC and northwest AB with our main focus on providing detailed environmental solutions in the oilfield industry. HESL provides services for all aspects of oilfield drilling waste management, pre-site (Schedule A) and detailed site (Schedule B) assessments, lease reclamation, contaminated site inspections, spill response, and site remediation.