Selected Project Abstracts
Meridian Environmental has provided consulting services for a diverse range of clients and projects. A brief summary of selected ongoing and completed projects is presented below:
A multi-site assessment and remediation program was undertaken for a medium sized energy trust in central Alberta to identify soil and groundwater issues associated with the historical flaring and disposal of oilfield wastes to unlined earthen pits. The project involved historical data reviews and site inspections to identify possible pit locations, followed by intrusive assessments to identify the contaminants of concern and the extent of impact. Surveys were also performed to identify critical receptors and define the governing exposure pathways and corresponding remedial criteria. The remedial programs involved a combination of onsite aeration, land treatment and offsite disposal.
Environmental liability assessment of an extensive package of pipeline, gas processing, storage and brine pond facilities across Canada and the north-eastern United States. The assessment was conducted as part of a due diligence review prior to purchasing of the assets by our client. The short, intermediate and end-of-day environment liabilities in the multi-million dollar range were evaluated, along with key issues associated with current site conditions and regulatory issues at the main facilities.
Phase I and Phase II environmental site assessments were undertaken at over 75 orphaned well sites in east-central Alberta. The assessments included historical documentation and air photo reviews, electromagnetic (EM) terrain conductivity surveys, the drilling of boreholes and recovery of soil for laboratory analyses. Where appropriate, recommendations for further site assessment or remedial activities were provided and remediation/risk management programs have been implemented.
Historical information relating to invert drilling waste management practices was reviewed for a large exploration and production company and a remedial program for 35 sites involving onsite bioremediation and offsite disposal of hydrocarbon impacted soils was developed and implemented. The project included supplementary waste characterization sampling and analyses and bench/pilot scale biotreatibility testing using various generic and proprietary add mixtures. Closure sampling programs were also developed and, where warranted, requirements for more detailed site closure assessments identified.
Environmental site investigations were conducted at over 250 locations in Northeast British Columbia over an 8 year period for a large energy trust in order to assess and reduce overall corporate liability in this region. The investigations included both preliminary and detailed site investigation components, followed by remedial excavation programs at numerous locations, and successful applications for Part 1 Certificates of Restoration (CoRs) at many of these locations.
Environmental liability assessments were undertaken at over 30 sites for two separate energy trust companies. The assessments were conducted in accordance with the ERCB (formerly EUB) Liability Management Program. End of day estimates were developed for facility abandonment, remediation and reclamation and Type A, B, C and D facilities.
Phase 1 and 2 environmental site investigations and liability assessment were conducted at a large gas storage facility and hub in southeast Alberta. The findings were incorporated into a purchase-sale agreement for the facility.
Environmental liability assessment of a 35 year old sour gas plant, as part of a due diligence program related to a potential purchase/sale agreement. The estimated range in costs associated with environmental issues was provided to our client to assist in decision-making regarding the potential purchase. Impacts were identified in a former iron sponge burial area and a remedial program was undertaken.
The development of a remedial action plan related to a historical produced water release in a wetland area. An initial background review involving information requests to various regulatory authorities was undertaken followed by preliminary and detailed sampling programs. The remedial plan included removal and offsite disposal of more heavily salt-affected soil and long-term surface water management within the release area, including containment, recovery and downhole injection at a nearby battery. Surface water and vegetation monitoring programs were implemented as part of the overall management strategy.
Development and implementation of soil monitoring programs and reporting for two SAGD facilities in Northeast Alberta.
Intrusive environmental assessment of a former heavy-oil pilot test production facility in Northeast Alberta. The assessment was followed by the development and execution of a remedial action plan for salt and hydrocarbon-impacted areas.
Development and implementation of an investigative program for the preparation of a remedial and risk management plan, related to onsite and offsite migration of hydrocarbon contamination including liquid hydrocarbons at a vehicle maintenance facility.
Surface water management at a multi-well coalbed methane pilot project in British Columbia. Tasks included development of a water sampling program to comply with a temporary discharge permit, evaluation of water quality and recommendations regarding treatment options and requirements. Water quality evaluation included formation water and surface water in nearby creeks and wetlands.
Management of the Alberta Environment Approval for an explosives manufacturing facility and fertilizer plant. Sampling and reporting is conducted in regards to the air, soil, groundwater, surface water and waste disposal requirements of the Approval.
Comprehensive Phase I environmental assessment of a major oil producing field in Venezuela, including a review of operations, risk and liabilities. Recommendations were made for short term risk management actions as well as additional data collection and longer term investigation and monitoring programs.