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Case Studies

Situation:

 

  • Approximately 600 litres of heating fuel discharged from the holding tank inside the garage adjacent to the home

  • Oil had migrated beneath into the bedrock and made its way into the well which supplied the home

  • Oil was seen coming from the taps of the home

  • Three car garage, all brick, raised bungalow of approximately 4000 sq.ft built on top of limestone bedrock

 

Task:

 

Emergency cleanup procedures:

 

  • Established clean water supply for residence and flushed plumbing system

  • Used existing water well as recovery well and installed Mobile Treatment Unit (MTU) to establish hydraulic containment

 

Use Chemical Oxidation using Stabilized Hydrogen Peroxide:

 

  • Used BIM200 to remediate impacted concrete floor

  • Installed screened wells along perimeter of impacted zone

  • Installed injection point at source of impact

  • Installed injection system connecting all wells

  • Used existing water well as recovery well, injected stabilized hydrogen peroxide into screened wells and drew towards recovery well

  • Upon achieving MOE compliance standards, decommissioned former water well and installed new well up stream as water supply

 

Result

 

  • Successful remediation achieved in 4 months

  • Saved the home

  • Home owners continued to live in the house during the remediation process

Brockville, Ontario

Oil Spill In Bedrock

Sault St. Marie, Ontario

Oil Spill Under Home and Into Lake

Situation:

 

  • Approximately 756 liters of heating fuel discharged from the holding tank located at the rear of the home

  • Oil had migrated under the home, into an abandoned O-pipe, down to the beach and approximately 150ft. into Lake Superior under the ice.

 

 

Task:

 

Emergency cleanup procedures:

 

  • Excavated immediate impact area

  • Installed Mobile Treatment Unit to establish hydraulic containment

  • Installed containment booms along lakeshore perimeter

 

 

Use Bio-Remediation and Mobile Treatment Unit (MTU) to achieve remediation:

 

  • Applied BIM200 to foundation of home

  • Used bio-remediation to remediate soil under home

  • Bio-piled contaminated ice and snow.  As the contaminated water thawed, run off was captured and pumped through MTU

 

 

Result

 

  • Successful remediation achieved in 12 months

  • Saved the home

  • Home owners continued to live in the house during the remediation process

  • Saved large trees on the property

Huntsville, Ontario

Oil Spill Under Home On Lake

Situation:

 

  • Approximately 900 liters of heating fuel discharged from the holding tank adjacent to the home

  • Contamination was visible on the basement wall

  • Oil had migrated beneath the concrete basement floor

  • Property consisted of many mature trees.  Steep slope toward the lakefront approximately 60 feet from the home.

  •  

 

Task:

 

Emergency cleanup procedures:

 

  • Excavated and removed contaminated soil down to the footings of the home in impact area

  • Installed a recovery well and Mobile Treatment Unit (MTU) to treat contaminated groundwater

  • Placed containment booms in the lake to prevent further possible migration into the lake

 

 

Use Bioremediation and MTU to Remediate Site:

 

  • Continued use of the MTU for groundwater remediation

  • Removed section of basement concrete floor to gain access to the subfloor contamination

  • Applied microbes and nutrients to degrade the contamination

  • Monitored and maintained microbial remediation until compliance with MOE standards was achieved.

  • Erected a retaining wall to prevent erosion where soil had been excavated, and placed an insulated winterized cover over the exterior impact zone so that bioremediation can continue during the winter months

  • Upon achieving MOE compliance standards, made necessary repairs to basement floor and landscaped exterior impact are

 

Result

 

  • Successful remediation achieved in 14 months

  • Saved the home

  • Saved the mature trees and picturesque landscape

  • No disturbance to the lake shore

Pigeon, Nova Scotia

Oil Spill Under Home 

Situation:

 

  • Approximately 600 liters of heating fuel discharged from the holding tank adjacent to the home

  • Contamination visible on the basement wall

  • Oil had migrated beneath the concrete basement floor to opposite side of home

  • Multiple additions and extensive renovations  had been done on the house

 

Task:

 

Emergency containment and cleanup procedures:

 

  • Excavated and removed immediate impact area down to the footing of the home

  • Applied BIM200 to outside foundation wall, inside foundation wall, above concrete floor and under concrete floor

  • Placed containment booms in nearby pond and capture dams in ditch as precautionary measures

 

 

Use Bio-Augmented Chemical Oxidation to Remediate Soil and Groundwater:

 

  • Installed gravity feed injection tubes in area of former AST

  • Inject Sodium Persulfate and Calcium Hydroxide oxidative amendment

  • After initial oxidative event culture and inject hydrocarbon digesting microbes

  • ​

 

Result

 

  • Successful remediation of both soil and groundwater in 12 months

  • Saved the home

  • Family continued to live in the home during the remediation process

Mt. Pearl, Newfoundland

Oil Spill Under Home 

Situation:

 

  • Approximately 600 liters of heating fuel discharged from the holding tank adjacent to the home

  • Oil had migrated beneath the footing of the home and partially under the basement floor

  • Oil had migrated along the side and back of the home via weeping tile

  • Large home with fully finished basement

  • Soil impacts only.  No groundwater impacts detected

 

Task:

 

Emergency containment and cleanup procedures:

 

  • Excavated and removed immediate impact area down to the footing of the home

  • Applied BIM200 to outside foundation wall, inside foundation wall and along weeping tile

 

 

Use Bio-Augmented Chemical Oxidation to Remediate Soil and Groundwater:

 

  • Installed gravity feed injection tubes in area of former AST

  • Inject stabalized hydrogen peroxide oxidative amendment

  • After initial oxidative event culture and inject hydrocarbon digesting microbes

 

Result

 

  • Successful remediation in 10 months

  • No underpinning  and saved the home

  • Saved impact on neighbours property

  • Family continued to live in the home during the remediation process

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