September 21, 2018

Updates on Tufts Cove clean-up

A timeline of our response and recovery efforts following the oil leak at Tufts Cove

tuc cropCurrent Status

We are in the final phase of the clean-up on our property in the area most impacted, directly in front of the plant.

The final phase of work involves replacing approximately 150 metres of large rock boulders – called rip rap – where the remaining oil is located. Due to the size and location of the rocks, it is difficult to remove the oil in and around them; therefore, that section of rip rap will be replaced. A small amount of booming will remain in the water in front of the plant as a precaution during this phase of work.

These rocks were installed in the 1990’s to maintain the structural integrity of underground infrastructure and as an artificial barrier to protect the plant property from water erosion.

We have also cleaned oil along the shoreline outside of the plant property, and will continue to work with our regulators to ensure that work meets the requirements of the Shoreline Treatment Plan.

KEY MILESTONES

Thursday, Aug. 2, 2018

  • Tufts Cove staff discovered oil leak, Environmental Response Plan was activated:
    • booms deployed in Halifax Harbour to contain the oil;
    • ECRC (Eastern Canada Response Corporation), environmental services contractor and a certified marine response organization, arrived on-site;
    • notification to the federal Environmental Emergencies 1-800 line and the Nova Scotia Emergency Management Office.
  • Provided public statement and social media update.

Friday, Aug. 3, 2018

  • Nova Scotia Environment (NSE) and Environment and Climate Change Canada (ECCC), visited Tufts Cove to review the oil leak and containment.
  • Written report of the incident to NSE that less than 5,000 litres of oil was estimated to have released off the plant site into Halifax Harbour based on visual assessments from land and air.
  • ECRC deployed oil absorbent materials called “pom poms” and “socks”, and noisemakers were initiated along the shoreline to deter birds and mammals away from site.
  • Internal team assigned to initiate a comprehensive root cause investigation.
  • Provided public statement and social media update.

Weekend of Aug. 4 – 6, 2018

  • More than 80 Nova Scotia Power and contractor personnel worked on emergency response effort to recover oil from Halifax Harbour.
  • ECRC drafted Shoreline Clean-up and Assessment Technique for oil recovery and treatment.

Thursday, Aug. 9, 2018

  • ECCC convened Science Table. Representatives include NSE, ECCC (Environmental Emergencies & Canadian Wildlife Service), DFO, Indigenous and Northern Affairs Canada (INAC), and Millbrook First Nation.

Friday, Aug. 10, 2018

  • Submitted official written notification to NSE of the oil release into Halifax Harbour, in compliance with the Contaminated Sites Regulations.

Tuesday, Aug. 14, 2018

  • Notified Science Table and NSE of oil leak volume estimates and recovery status for Halifax Harbour (95% of less than 5,000 litres), the containment trench (95% of 9,900 litres), and the Unit 1 cooling water system (50% of 9,400 litres).

Friday, Aug. 17, 2018

  • Science Table provided confirmation of acceptance of proposed end-points for cleanup outlined in Shoreline Clean-up and Assessment Technique and Shoreline Treatment Plan.

Thursday, Aug. 30 to mid-September, 2018

  • Clean-up efforts focused on the detailed clean-up directly in front of the plant, which was the most impacted.