Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid...
Transcript of Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid...
![Page 1: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/1.jpg)
smart science solutions™
Gunnar Uranium MineRemediation – Northern
SaskatchewanNov 18, 2009
Environmental Quality Committee (EQC)
La Ronge, SaskatchewanMark Simpson
Saskatchewan Research Council
![Page 2: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/2.jpg)
smart science solutions™
EnergyEnvironment & Forestry
Agriculture, Biotechnology& Food
Mining & Minerals
Alternative Energy& Manufacturing
![Page 3: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/3.jpg)
smart science solutions™
Project CLEANSCLEan Abandoned Northern Sites
consists of 3 components:
1) Gunnar Mine (requires CNSC license)2) Lorado Mill & Mine (requires CNSC license)3) 34 abandoned mines without tailings exempt
from CNSC licensing, Saskatchewan Environment regulated
![Page 4: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/4.jpg)
smart science solutions™
Gunnar Site
• Northwestern
Saskatchewan
on the
Crackingstone
Peninsula
![Page 5: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/5.jpg)
smart science solutions™
Gunnar Site
No permanent residents within 15 km
Approx. 112 people live within 80 km
![Page 6: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/6.jpg)
smart science solutions™
![Page 7: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/7.jpg)
smart science solutions™
2006November 2006
– SRC and SER finalize and sign the contract to deliver the Former Gunnar Mine Site Rehabilitation project
![Page 8: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/8.jpg)
smart science solutions™
2007April 2007
– SRC submitted the Former Gunnar Mine Site Rehabilitation project Proposal, to the Environmental Assessment Branch, Saskatchewan Environment
June 2007 – Saskatchewan Environment sent a letter informing SRC of the
requirement to complete an environmental assessment under the Canadian Environmental Assessment Act
![Page 9: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/9.jpg)
smart science solutions™
2008April 2008
– the draft Guideline-Scoping Document for the Former Gunnar Mine Site Rehabilitation Project under went a 30 day public comment period
June 2008 - Lorado– SRC and SER finalize and sign the contract to deliver the
Former Lorado Mill SIte Rehabilitation project
July 2008 – CNSC staff recommend that the Commission accepts the
Former Gunnar Mine Site Rehabilitation Project draft Track Report and adopt the scope as presented in the Guideline Scoping Document
![Page 10: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/10.jpg)
smart science solutions™
2009February 2009
– The Federal Minister of Environment announced the Former Gunnar Mine Site Rehabilitation Project will proceed as a Comprehensive Environmental Assessment
March 2009 – Lorado– SRC submitted the Project Proposal for the Former Lorado
Uranium Mill Site to the Environmental Assessment Branch of the Saskatchewan Ministry of Environment
April 2009 – SRC issued a RFP for the Former Gunnar Mine Site
Environmental Assessment
June 2009 – Commenced work on the Gunnar EA
![Page 11: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/11.jpg)
smart science solutions™
Presentation Outline
1. Gunnar Site – mine site and history
2. Hazards
3. Endpoints and Remediation Options
4. Community Involvement
5. Questions/Discussions
![Page 12: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/12.jpg)
smart science solutions™
Gunnar History
• mine operated from 1953-1964• a total of 8.3 million tons of rock mined• average grade of deposit was 0.18% U3O8• initially started as open pit• a 600 metre deep vertical shaft was sunk• underground mining started in1957• mining ceased in 1964• pit was flooded, shaft covered with concrete
cap, and mine site abandoned
![Page 13: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/13.jpg)
smart science solutions™
Gunnar 1955 (open pit no headframe)
![Page 14: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/14.jpg)
smart science solutions™
Gunnar 2009 (45 years after closure)
![Page 15: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/15.jpg)
smart science solutions™
Acid Plant
20081956 2009
![Page 16: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/16.jpg)
smart science solutions™
Mill Conveyors
1956
2009
![Page 17: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/17.jpg)
smart science solutions™
Power PlantSalvaged shortly after shutdown
1956 2009
![Page 18: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/18.jpg)
smart science solutions™
Current Gunnar Site
![Page 19: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/19.jpg)
smart science solutions™
Hazards/Site Characterization
– Radon– Gamma Radiation– Buildings and Structures– Tailings Areas (3)– Waste Rock (2)– Gunnar Pit– Lake Athabasca impacts
![Page 20: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/20.jpg)
smart science solutions™
Radon monitoring stations at the Gunnar site
![Page 21: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/21.jpg)
smart science solutions™
Radon gas monitoring
10 radon gas stations are located on the Gunnar siteDetectors are collected and analyzed twice a year
![Page 22: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/22.jpg)
smart science solutions™
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Rad
on
(pC
/L
*Saskatchewan & Saskatoon levels from Health Physics, 1994
Gunnar Average (1.8 pC/L)
Average Radon levels Gunnar site2004-2009
![Page 23: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/23.jpg)
smart science solutions™
Gamma radiation survey(reading taken every 2 seconds, over 40,ooo gamma measurements collected)
GPS antenna
Field Computer
GammaDetector 2” NaI
![Page 24: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/24.jpg)
smart science solutions™
![Page 25: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/25.jpg)
smart science solutions™
Gamma Radiation Possible Remedial Options
•Do nothing•Relocate tailings to pit and bury (requirestreating displaced pit water)
•Bury in place with sand and gravel•Bury in place with waste rock
![Page 26: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/26.jpg)
smart science solutions™
Buildings and Structures
Married Persons Quarters Single Workers Residence
![Page 27: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/27.jpg)
smart science solutions™
Unauthorized salvage
![Page 28: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/28.jpg)
smart science solutions™
Buildings structurally unsound
Many of the residence buildings are in very poor condition
![Page 29: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/29.jpg)
smart science solutions™
Buildings and Structures
Head Frame Crusher, Mill, Acid Plant
![Page 30: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/30.jpg)
smart science solutions™
Buildings and Structures
School
South Side of Gunnar Site
![Page 31: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/31.jpg)
smart science solutions™
Mill Building
Ore Storage Bins Product Packaging Area
![Page 32: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/32.jpg)
smart science solutions™
Acid Plantcorroded and structurally unsound
![Page 33: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/33.jpg)
smart science solutions™
Buildings and Structures - Possible Remedial Options
• Underwater DisposalGunnar Pit Lake Athabasca (unlikely)
• Single Landfill• Multiple Landfills (three)• Hauling metal off-site• Mine monument?• Others?
![Page 34: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/34.jpg)
smart science solutions™
Hazardous Materials
• Asbestos• PCB- containing electrical devices• Sulphur• Blasting materials• Miscellaneous chemicals
![Page 35: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/35.jpg)
smart science solutions™
Asbestos Friable -spray on asbestos insulation & pipe insulation
Non-friable asbestos siding
Asbestos requires specialized handling and disposal techniques
![Page 36: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/36.jpg)
smart science solutions™
Sulphur, barged in from Alberta, was used to make sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site
![Page 37: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/37.jpg)
smart science solutions™
Tailings Areas
A total of 4.4 million tonnes of tailings were discharged from the mill This material is located in 3 main tailings deposits on the Gunnar site:
•Gunnar Main•Gunnar Central•Langley Bay
![Page 38: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/38.jpg)
smart science solutions™
Gunnar Tailings Areas
![Page 39: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/39.jpg)
smart science solutions™
Gunnar Main Tailings AreaGunnar Main looking south towards Lake Athabasca
Water ponder on Gunnar Main (note wind blown dust)
![Page 40: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/40.jpg)
smart science solutions™
Tailings - Possible Remedial Options
• Do nothing• Natural Controls and Re-vegetation• Water/Rock Cover/Borrow Material cover• Impermeable Engineered Cover• Use of constructed wetlands – next slide• Combinations of above• Others?
![Page 41: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/41.jpg)
smart science solutions™
Constructed WetlandsPILOT SCALE FULL SCALE
Point Sources – Oil refinery Uranium Mine Contaminated Site Restoration
Oil Sands Process Water
APPLICATIONS in SOUTHERN AND NORTHERN CLIMATES
![Page 42: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/42.jpg)
smart science solutions™
Waste Rock2.7 million m3 of waste rock located adjacent to the
shore of Zeemel Creek and Lake Athabasca
![Page 43: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/43.jpg)
smart science solutions™
Waste Rock – Possible Remedial Options
• Do nothing• Contouring • Engineered Cover• Move part of the piles away from Lake
Athabasca• Reroute Zeemel Creek• Others?
![Page 44: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/44.jpg)
smart science solutions™
Gunnar Pit (1963-1964)
![Page 45: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/45.jpg)
smart science solutions™
Gunnar PitGunnar Pit - 1964116m deep, and approx. 300m dia.50 m from shore of Lake Athabasca
Gunnar Pit todayFlooded and supporting a population of northern pike
![Page 46: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/46.jpg)
smart science solutions™
Gunnar Pit - Possible Remedial Options
• Do nothing• Stabilize the sides of the pit• In-filling of pit with mine buildings• In-filling of pit with tailings• Treatment of displaced pit water if pit in-filled• Addressing the water seepage issue• Other?
![Page 47: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/47.jpg)
smart science solutions™
Surface water sample sites at the Gunnar mine site
![Page 48: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/48.jpg)
smart science solutions™
Gunnar Pit Water QualityGP-01
0
5
10
15
20
25
30
35
SSWQO
GUNNAR
974
![Page 49: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/49.jpg)
smart science solutions™
St. Mary’s ChannelLake AthabascaAB-01
0
5
10
15
20
25
30
35
SSWQO
GUNNAR
![Page 50: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/50.jpg)
smart science solutions™
GunnarMain TailingsTA-01
0
5
10
15
20
25
30
35
SSWQO
GUNNAR
237
![Page 51: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/51.jpg)
smart science solutions™
Langley BayLake AthabascaTA-05
0
5
10
15
20
25
30
35
SSWQO
GUNNAR
µg/L
![Page 52: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/52.jpg)
smart science solutions™
Community Consultation
Project Review Committee (PRC)
• Uranium City• Camsell Portage• Fond du Lac• Stony Rapids• Black Lake• Hatchet Lake• Uranium City Métis Local #50• Prince Albert Grand Council, Athabasca Vice Chief
![Page 53: Gunnar Uranium Mine Remediation – Northern Saskatchewan20presentation%20... · sulphuric acid required in the refining process. Several cubic metres of sulphur still remain on site.](https://reader031.fdocuments.net/reader031/viewer/2022011800/5ac2b10b7f8b9ae06c8b4c7a/html5/thumbnails/53.jpg)
smart science solutions™
Thank You…
CLEANS logo designed by astudent from an elementary school in Fond du Lac, SK
www.saskcleans.ca