1. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Noise Impact Assessment West Can Seal Coating Gravel Pit LSD 8-35-32-6 W5M West of Sundre

2. Objective of the Assessment  Assess the sound data of typical equipment and operations that are proposed for the West Can Seal Coating Gravel Pit.  Predict the noise level from exploration phases, during the Stripping stage, the Crushing, Washing, Asphalt production, and Transportation operation phase at the potentially most affected receiver locations. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD

3. Project Study Area

4. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Project Site Plan

5. Common Noise Levels

6. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Major Equipment Details Equipment DescriptionEquipment Details Operation 1 – Stripping  Two (2) CAT 627 or Terex TS14 Motor Scrapers  Engine Exhausts are assumed to be equipped with Hospital Grade Silencers Operation 2 – Crushing, Washing, Asphalt Production & Transportation  Three (3) CAT 980 Loader  One Feed Hopper and Conveyor  One (1) 22” X 42” Jaw Crusher and 6’ X 16’ Double Deck Vibratory Screener  One (1) 54” Cone Crusher  One 7’ X 20’ Triple Deck Vibratory Screener  Surge Bin and Conveyor  Three (3) CAT 980 Loader (Asphalt Plant)  One (1) CAT 980 Loader (Washing Plant)

7. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Operation Scenarios Studied ScenarioOperationSection Scenario-1  Stripping without Berms on 1 m depth Phase 1 Scenario-2  Crushing, Washing, Potential Future Asphalt Production & Transportation without berms on 3 m depth (simultaneous operation) Phase 1 Scenario-3  Stripping without Berms on 1 m depth Phase 2 Scenario-4  Crushing, Washing, Potential Future Asphalt Production & Transportation without berms on 3 m depth (simultaneous operation) Phase 2 Scenario-5  Stripping without Berms on 1 m depth Phase 3 Scenario-6  Crushing, Washing, Potential Future Asphalt Production & Transportation without berms on 3 m depth (simultaneous operation) Phase 3 Scenario-7  Stripping without Berms on 1 m depth Phase 4 Scenario-8  Crushing, Washing, Potential Future Asphalt Production & Transportation without berms on 3 m depth (simultaneous operation) Phase 4

8. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Predicted Noise Levels Generated by Stripping and Crushing, Washing, Asphalt Production & Transportation Operation Activity Location Predict Noise Level Day Time plus Ambient Sound Level (dBA) Scenario 1 (Phase 1) Scenario 2 (Phase 1) Scenario 3 (Phase 2) Scenario 4 (Phase 2) Scenario 5 (Phase 3) Scenario 6 (Phase 3) Scenario 7 (Phase 4) Scenario 8 (Phase 4) Receiver 15460526053596260 Receiver 2504951 61555250 Receiver 35048525061545349 Receiver 45047605356495448 Receiver 55046544951475047 Receiver 65047494647464846 Receiver 755475247 465246 Receiver 84957475747575057 Receiver 947484748

9. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Scenario 1- Predicted Facility Sound Contours (Not Including Ambient) from Stripping, without Berms - Phase 1

10. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Scenario 2- Predicted Facility Sound Contours (Not Including Ambient) from Crushing, Washing, Asphalt production & Transportation, without Berms - Phase 1

11. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Scenario 1 - Predicted Facility Sound Contours (Not Including Ambient) from Stripping with 3 m Berms - Phase 1

12. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Scenario 2- Predicted Facility Sound Contours (Not Including Ambient) from Crushing, Washing, Asphalt production & Transportation with 3m Berms - Phase 1

13. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Predicted Noise Levels Generated by Stripping and Crushing, Washing, Asphalt Production & Transportation Operation Activity, with 3m and 5 m high Berms Location Predict Noise Level Day Time plus Ambient Sound Level (dBA) Scenario 1 (Phase 1) Scenario 2 (Phase 1) Scenario 3 (Phase 2) Scenario 4 (Phase 2) Scenario 5 (Phase 3) Scenario 6 (Phase 3) Scenario 7 (Phase 4) Scenario 8 (Phase 4) 3m High 5m High 3m High 5m High 3m High 5m High 3m High 5m High 3m High 5m High 3m High 5m High 3m High 5m High 3m High 5m High Receiver 1 54 59 52 59 53 59 6160 Receiver 2 5049 51 50 60585452 49 Receiver 3 50 47 52 49 6059545352 48 Receiver 4 50 47 54 49 50 47 49 46 Receiver 5 49 46 52 48 49 46 48 46 Receiver 6 50 47 49 46 47 46 48 46 Receiver 7 49 46 48 46 47 46 48 46 Receiver 8 49 57 47 57 47 565749 57 Receiver 9 47 48 47 48 47

14. PATCHING ASSOCIATES ACOUSTICAL ENGINEERING LTD Conclusion The Predicted Sound Level for stripping phase (without berms) exceeds the Permissible Sound Level (55dBA Daytime) at nearest Receiver to the respective phase of operation. The Predicted Sound Level for the Crushing, Washing & Asphalt production phase (without berms) are within the Permissible Sound Level (55 dBA Daytime) at all Receivers around proposed gravel pit except Receiver 1 and Residence 8. The predict Sound Level at Receiver 1 & 8 exceed the PSL due primarily to the hauling of product from the site. The introduction of 3m and 5m high berms brings down the predicted sound level below the PSL during the Striping phase except phase 3 and Phase 4. In the Crushing, Washing & Asphalt Production phase, berms bring down the predicted sound level at all Receivers except Residence 1 and 8.

15. Noise levels at Receiver 8 are due almost exclusively to the transportation of product on the adjacent road Conclusion (continued)