Independent report looks at Husky response to Saskatchewan oil spill[
http://globalnews.ca/news/2919182/indep ... oil-spill/ ]
September 2, 2016 5:48 pm Updated: September 5, 2016 11:05 am
by Joel Senick Anchor / Reporter Global News
Play Video: Coverage of the Husky Energy oil spill near Maidstone into the North Saskatchewan RiverIf Husky Energy reacted sooner to an oil spill in the North Saskatchewan River, downstream drinking water likely wouldn’t have been affected, according to a co-author of an independent report on the incident.
“Had they found the spill as soon as it happened, let’s say within an hour, that oil would not have had a chance to affect the water supply of [Prince Albert] or North Battleford,” said Ricardo Segovia, a hydrogeologist for New Mexico-based E-Tech International. On Thursday, the group released an “independent primary assessment” of the oil spill that occurred in late July.
“They would have been able to contain the spill in the first few kilometers of that river stretch,” Segovia added.
The report states there was a 14-hour delay in response to the spill, however a Husky spokesperson pushed back against the findings Friday and said “that there are a number of basic errors” within the report.
A timeline provided days after the spill by the Calgary-based company states “the pipeline monitoring system indicated pressure anomalies” hours before a sheen was reported on the river. A pipe near Maidstone had spilled an estimated 225,000 liters of blended crude oil, some of which entered the river.
“Our response was immediate upon discovery of the leak and was informed by the responsible provincial and federal regulators as well as the foremost scientists and experts in the field,” Husky Energy spokesperson Mel Duvall said in an emailed statement Friday.
In an interview, Segovia said “one doesn’t detect abnormalities in pressure unless something’s happening to that oil. So there had to be something leaking out of the pipe when they first detected the anomaly.”
“Those were very critical hours in determining how far the oil would go,” he added.
The E-Tech report was commissioned by concerned indigenous and non indigenous groups near the spill, according to Segovia. He added that the visitors spoke with area residents and took water samples during a four-day visit to the province in mid-August.
Segovia said he expected his group to return to Saskatchewan in the coming weeks for additional testing.
Related • Chief Wally Burns of the James Smith Cree Nation surveys the Saskatchewan River next to an oil boom he had a hand in setting up, on Friday, August 25, 2016, in this handout photo. A First Nation in northern Saskatchewan says oil from the Husky Energy pipeline leak has shown up in the spawning grounds of an endangered species.Officials from James Smith Cree Nation say an oil plume and foam was discovered in the Saskatchewan River where lake sturgeon spawn. Saskatchewan First Nation says oil from Husky spill affecting sturgeon spawning
• The City of Prince Albert is confident it has enough an ample supply of water to lift all restrictions following an oil spill into a Saskatchewan river. Water restrictions lifted in Prince Albert, Sask. after North Sask. River oil spill
• The Prince Albert city manager said one of the options being discussed is to return to drawing water from the North Saskatchewan River and treating it for hydrocarbons. Water customers may get break after oil spill
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EXCERPT
Independent Primary Assessment of Husky Energy Oil Spill into the North Saskatchewan River - E-Tech International / Resurgence Environmental - September 1, 2016Summary of Findings and Recommendations1. Husky’s late reaction to the July 20th, 2016 oil spill (14 hour delay) allowed time for the spill to travel much further downstream then if they had reacted immediately. It also allowed time for the heavier components of the diluted crude oil to attach to sediment particles and submerge into the water column and to the bottom of the North Saskatchewan River.
Recommendations: Lessons should be taken from the Kalamazoo River spill in Michigan and submerged oil should become a recovery priority. Some methods found to be effective in the Kalamazoo River included Gabion Baskets filled with sorbent material and sediment basins to slow sediment migration. Hydraulic dredging was found to be effective in recovering oil once it reached the river bottom. Any recovery process should go through an ecological impact analysis since some methods can be too aggressive for sensitive ecosystems. Husky needs to start taking sediment samples along the river bed since the problem is quickly shifting from surface contamination to submerged contamination.
2. Husky Energy has not been transparent with its sampling data or cleanup plans.
Recommendations: Local residents need to demand full access to the raw data from Husky’s sampling program and a detailed cleanup strategy. The cleanup strategy should include reasoning for boom numbers and placement, techniques for dealing with submerged oil, and monitoring strategy for the next two years. Husky needs to sample water and sediment downstream of Prince Albert, where they have set their current sampling limit.
3. Husky Energy did not warn residents of the health risks associated with evaporating BTEX-group chemicals and other volatile compounds that are present in peak concentrations in the first 48 hours after a spill. Husky should have warned residents (especially children and pregnant women) to stay away from the river immediately after the spill.
Recommendation: Local residents should demand information about the potential dangers of the exposure to volatile compounds and the continued health risks associated with the more persistent chemicals such as the PAH group of chemicals.
4. E-Tech/RE samples showed the presence of BTEX chemicals and PAHs at the Tobey Nollet Bridge and the Cecil Ferry downstream of Prince Albert. The specific PAHs found at Cecil Ferry were all found near the spill site at Tobey Nollet Bridge, indicating that the hydrocarbons at Cecil Ferry are very likely the result of the July 20th Husky spill.
Recommendation: Additional sampling should be conducted upstream of the spill in order to determine pre-spill conditions within the North Saskatchewan River. Sampling should also be done at Cumberland Lake at the mouth of the North Saskatchewan River where contaminated sediment is likely to submerge.
5. Infrastructure improvements need to be a priority in order to prevent further spills. Husky should disclose all of its pipeline inspection data, its pipeline maintenance schedule, and the ages of all sections of pipeline. Soil stability also needs to be considered an integral component of pipeline stability and geotechnical data near pipeline supports should be provided by Husky.
6. The James Smith Cree Nation needs to be supported in its effort to mitigate and monitor the damage to their traditional territory. Funds should be made available to communities interested in conducting their own mitigation and monitoring efforts. E-Tech/RE can assist in training local environmental monitors.
For any questions regarding this report, please contact Ricardo Segovia at
segoviacaminando@gmail.com or at (604) 704-1232.
Ricardo Segovia, Hydrogeologist, E-Tech International / Resurgence Environmental
Danielle Stevenson, Remediation Specialist, Resurgence Environmental
Leila Darwish, Remediation Specialist, Resurgence Environmental
ReferencesCBC News (2016). Husky admits crews missed leak night of Saskatchewan oil spill.
Available at: [
http://www.cbc.ca/news/canada/saskatche ... -1.3699007 ]
Husky Energy (2016). Saskatchewan Pipeline Incident Updates.
Available at: [
http://huskyenergy.com/news/saskatchewan-updates.asp ]
James Smith Cree Nation (2016). James Smith Cree Says Our Waters Are Priceless.
Available at: [
http://www.jamessmithcreenation.com/news/index.html ]
National Academies Press (2016). Spills of Diluted Bitumen from Pipelines: A Comparative Study of Environmental Fate, Transport, and Response.
Available at: [
http://www.nap.edu/read/21834/chapter/1 ]
USEPA (2016). FOSC Desk Report for the Enbridge Line 6B Oil Spill. Marshall, Michigan.
Available at: [
https://www.epa.gov/sites/production/fi ... -241pp.pdf ]
Water Security Agency (2016). Surface Water Quality Verification Dataset - Summary North Saskatchewan River Release.
Available at: [
https://www.wsask.ca/Global/About%20WSA ... 0Table.pdf ]
Water Security Agency (2016). Sediment Quality Verification Dataset - Summary North Saskatchewan River Release.
Available at: [
https://www.wsask.ca/Global/About%20WSA ... 0Table.pdf ]
Appendix 1: Material Safety Data Sheet for Crude Spilled into N. Sask. River - Material Safety Data Sheet for HLU Blended LLB Heavy Crude Oil:[
https://huskyenergy.msdsbinders.com/Cus ... %20Company) ]
Appendix 2: Fact Sheets on Toxins Found in the Oil Spilled:Properties of Crude Oil Spilled: [
http://www.crudemonitor.ca/crude.php?acr=LLB ]
Benzene [
https://www.atsdr.cdc.gov/toxfaqs/tfacts3.pdf ]
Tolulene [
https://www.atsdr.cdc.gov/toxfaqs/tfacts56.pdf ]
Ethylbenzene [
https://www.atsdr.cdc.gov/toxfaqs/tfacts110.pdf ]
Xyrene [
https://www.atsdr.cdc.gov/toxfaqs/tfacts71.pdf ]
Polycyclic Aromatic Hydrocarbons [
https://www.atsdr.cdc.gov/toxfaqs/tfacts69.pdf ]
Total Petroleum Hydrocarbons [
https://www.atsdr.cdc.gov/toxfaqs/tfacts123.pdf ]